The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC...

56
The SCRF Proton Driver A New High Intensity Proton Source (and more!) at Fermilab Bill Foster SRF2005 July 15, 2005

Transcript of The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC...

Page 1: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Th

e S

CR

F P

roto

n D

riv

er

A N

ew H

igh

In

ten

sity

Pro

ton

So

urc

e

(an

d m

ore

!)

at F

erm

ilab

Bil

l F

ost

er

SR

F2

00

5

Ju

ly 1

5, 2

00

5

Page 2: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Ou

tlin

e

•T

he

Co

nce

pt

•F

erm

ila

b S

tra

teg

ic C

on

tex

t

•P

roto

n D

river

SR

F L

ina

c D

esig

n

•F

erri

te V

ecto

r M

od

ula

tor

R&

D

•H

ard

ware

in

Pro

gre

ss

Page 3: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

8 G

eV S

CR

F P

roto

n D

riv

er

New

id

ea i

nco

rpo

rati

ng

co

nce

pts

fro

m T

ES

LA

, S

NS

,

RIA

, T

RA

SC

O,

AP

T…

•C

opy S

NS

, R

IA, an

d J

PA

RC

Lin

ac d

esig

ns

up t

o 1

.3 G

eV

•U

se “T

ES

LA

” C

ryo

mo

dule

s f

rom

1.3

-8 G

eV

•D

irec

t 8 G

eV

H-

Inje

ctio

n i

nto

Fer

mil

ab M

ain I

nje

cto

r

� ���“S

uper

-Bea

ms”

in F

erm

ilab

Mai

n I

nje

ctor

–2+

MW

Bea

m p

ow

er a

t B

OT

H 8

GeV

and 1

20 G

eV

–S

mal

l li

nac

em

itta

nce

s�

Sm

all

loss

es i

n M

ain I

nje

cto

r

–V

ery s

imple

op

erat

ion o

f th

e ac

cele

rato

r co

mp

lex

–M

inim

um

(1.5

sec

) cy

cle

tim

e (e

ven

tual

ly f

aste

r)

–M

I B

eam

Pow

er I

nd

epen

den

t o

f B

eam

En

ergy

�(f

lexi

ble

neu

trin

o p

rogra

m)

Page 4: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Fer

mil

ab’s

Ex

isti

ng P

roto

n S

ou

rce

Co

ckro

ft-W

alt

on

H-io

ns � ���

(750 K

eV

)

35 y

rs o

ld

Dri

ft T

ub

e L

INA

C

750 K

eV� ���

116 M

eV

35 y

rs o

ldF

NA

L A

ccel

erato

r C

om

ple

x

7 m

ajo

r a

ccel

erato

rs !

)

Pro

ton

So

urc

e =

Lin

ac,

Boost

er, M

ain

In

ject

or

35 y

rs o

ld

8 G

eV

Bo

os

ter

Rap

id-C

yc

lin

g

Syn

ch

rotr

on

Page 5: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Q: W

HA

T IS

TH

E

SIG

NIF

ICA

NC

E O

F T

HIS

N

UM

BE

R ?

A:

this

is t

he n

um

be

r of

vacuu

m

tubes r

equir

ed t

o a

ccele

rate

bea

ms t

o 8

GeV

in F

erm

ilab’s

curr

en

t P

roto

n S

ourc

e.

451

Page 6: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Ad

van

tag

es o

f th

e 8

GeV

Lin

ac

Rep

laci

ng

a R

ap

id-C

ycl

ing

Sy

nch

rotr

on

wit

h a

SC

RF

In

ject

or

Lin

ac

resu

lts

in

an

acc

eler

ato

r co

mp

lex

th

at

is:

•S

imp

ler

–M

any f

ewer

com

ponen

ts t

o d

esig

n a

nd m

ainta

in

–S

imple

r B

eam

Dynam

ics �

Low

er B

eam

Loss

es

•L

ow

er W

all

Po

wer

–5 M

W A

C P

ow

er vs.

~

20 M

W f

or

RC

S

•M

ore

Fle

xib

le

–B

road

er P

hysi

cs P

rogra

m (

dir

ect

use

s of

8 G

eV l

inac

bea

m)

–M

ore

Upgra

de

Pote

nti

al t

o >

> 2

MW

bea

m p

ow

er

Page 7: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

8 G

eV

Su

perc

on

ducting

Lin

ac

With X

-Ra

y F

EL,

8 G

eV

Neutr

ino &

Spalla

tio

n S

ourc

es,

LC

and N

eutr

ino F

acto

ry

~ 7

00m

Acti

ve

Len

gth

8 G

eV

Lin

ac

X-R

AY

FE

L L

AB

8 G

eV

neu

trin

o

Main

Inje

cto

r@

2 M

W

An

ti-

Pro

ton

SY

-120

Fix

ed

-

Targ

et

Ne

utr

ino

“S

up

er-

Be

am

s”

NU

MI

Off

-A

xis

& L

on

g-P

uls

e

Sp

all

ati

on

So

urc

e

Ne

utr

ino

Ta

rge

t

Neu

trin

os

to “

Ho

mesta

ke”

Sh

ort

Ba

se

lin

e

De

tec

tor

Arr

ay

Targ

et

an

d M

uo

n

Co

oli

ng

Ch

an

ne

l

Bu

nc

hin

gR

ing

Recir

cu

lati

ng

Lin

ac

fo

r

Neu

trin

o

Fac

tory

VL

HC

at

Fe

rmil

ab

Dam

pin

g R

ing

sfo

r T

ES

LA

@ F

NA

LW

ith 8

GeV

e+

Pre

acc.

1%

LC

Sys

tem

s T

est

Page 8: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Th

e B

as

eli

ne M

issio

ns

:S

up

er

Be

am

s i

n t

he

Ma

in I

nje

cto

r &

IL

C T

es

t B

ed

~ 7

00m

Acti

ve

Len

gth

8 G

eV

Lin

ac

8 G

eV

neu

trin

o

Main

Inje

cto

r@

2 M

W

SY

-120

Fix

ed

-

Targ

et

Ne

utr

ino

“S

up

er-

Be

am

s”

NU

MI

Off

-A

xis

1.5

% IL

C T

es

t B

ed

Page 9: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

8 G

eV

SC

Lin

ac P

roto

n D

river

•A

Bridge P

rogra

m to the L

inear

Colli

der

•N

ear

Term

Physic

s P

rogra

m (

neutr

inos+

)

•M

ultip

le H

EP

Destinations &

Off-R

am

ps

•A

seed p

roje

ct fo

r In

dustr

ial P

art

icip

ation

50 c

ryom

odule

s, 12 R

F s

tations, ~

1.5

% o

f LC

Page 10: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Fer

mil

ab’s

Fork

in t

he

Road

IF (

IL

C 2

00

6 C

DR

lo

ok

s a

ffo

rda

ble

) T

HE

N

–P

ush

for

ILC

~2010 c

onst

ruct

ion s

tart

at

Fer

mil

ab

–P

roce

ed w

ith 1

20 G

eV N

eutr

ino P

rogra

m a

t >

1 M

W

EL

SE

–S

uper

conduct

ing 8

GeV

Pro

ton D

river

sta

rtin

g 2

008

–30-1

20 G

eV a

nd 8

GeV

Bea

ms

at 2-4

MW

–S

teppin

g-S

tone

to d

elay

ed I

LC

const

ruct

ion s

tart

~2012

EN

DIF

Page 11: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Pier O

ddon

e’spre

senta

tion t

o EPP

2010

:

Proto

n Driv

er Pr

oject

Plann

ing C

urren

tly Su

pport

s a FY

2008

Con

struc

tion S

tart

Page 12: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Th

e B

uil

din

g B

lock

of

the

8 G

eV L

inac

… i

s th

e T

ES

LA

RF

Sta

tio

n:

•1

K

lyst

ron

•1

M

od

ula

tor

•~

4 C

ryo

mo

du

les

•3

6 S

CR

F C

AV

ITIE

S

~1

GeV

of

Bea

m E

ner

gy

Pro

ton D

rive

r: 8 R

F S

tati

ons

Lin

ear

Coll

ider

: 500 R

F S

tati

ons

Un

ders

tan

din

g t

he

pro

du

cti

on

co

st

of

the T

ES

LA

RF

sta

tio

n

is t

he m

ost

imp

ort

an

t

qu

esti

on

in

(U

S)

HE

P.

Page 13: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

β=

=1β

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1

Mo

du

lato

r

36 C

avit

es/

Kly

stro

n

TE

SL

A L

INA

C8 K

lyst

rons

288 C

avit

ies

in 3

6 C

ryom

odule

s 130

0 M

Hz β

=1

β<

1T

ES

LA

LIN

AC

2 K

lyst

rons

96 E

llip

tica

l C

avit

ies

12 C

ryom

odule

s

1300 M

Hz

0

.1-1

.2 G

eV

β=

=1β

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1

Mo

du

lato

r

10

MW

TE

SL

AM

ulti-B

eam

Kly

str

on

s4

8 C

avit

es/

Kly

stro

n

β=

.81

Mo

du

lato

r

β=

.81β

=.8

=.8

=.8

=.8

1

8 C

avit

es/

Cry

om

od

ule

0.5

MW

In

itia

l 8 G

eV

Lin

ac

11 K

lystr

ons

(2 t

ypes)

449 C

avitie

s

51 C

ryo

module

s

“P

UL

SE

D R

IA”

Fro

nt

End L

ina

c

325 M

Hz

0-1

10 M

eV

H-

RF

QM

EB

TR

TS

RS

SR

DS

R

Sin

gle

3 M

WJP

AR

CK

lystr

on

Mu

lti-

Cav

ity F

anou

tat

10

-5

0 k

W/c

avit

y

Ph

ase

and A

mp

litu

de

Con

trol

w/

Fer

rite

Tu

ner

s

DS

R

β=

.47

Mo

du

lato

r

β=

.47β

=.6

=.6

=.6

=.6

1

or…

32

5 M

Hz

Sp

oke

Res

on

ato

rs

Ell

ipti

ca

l O

pti

on

Mo

du

lato

r

10

MW

TE

SL

AK

lys

tro

ns

Page 14: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Pro

ton D

river

Lin

ac -

Techno

log

y F

low

R F Q

“P

UL

SE

D R

IA”

SC

RF

Sp

oke

Ca

vit

y L

ina

c

“S

NS

/ R

IA”

Be

ta <

1

Ellip

tic

al

Ca

vit

y L

ina

c

“T

ES

LA

Ellip

tic

al C

avit

y S

CR

F L

ina

c

Be

ta =

1 1

30

0 M

Hz

JH

F

(KE

K)

RIA

(A

NL

)

AP

T (

LA

NL

)

SN

S (

JL

AB

)

RIA

(M

SU

)

FN

AL

AN

L / S

NS

Ne

w F

NA

L P

roto

n S

ou

rce

Lin

ea

r C

olli

de

r T

est F

acili

ty

TE

SL

A

CO

LL

AB

OR

AT

ION

BN

L / S

NS

FN

AL

P

roto

n P

lan

Up

gra

des

NU

MI B

ea

mlin

e &

Infr

as

tru

ctu

re

H _

325 M

Hz

RF

Q a

nd

Kly

str

on

SC

RF

Sp

oke

Cavitie

s

Lin

ac

Accel.

Phys

ics

SN

SP

roduction

Exp

eri

ence

β<

1C

avity

Desig

n

Fast

Ferr

ite

Shifte

rs

Puls

ed

Modu-

lato

rsCavities

Cryogenics

Klystrons

RF Distribution

Beam

Tra

nsp

ort

and C

olli

mation

Desig

n

Ma

inIn

jecto

r@

2 M

W8 G

eV

beam

s:

P, n,

ν,

µ, e…

Technolo

gic

al

& H

EP

Applic

ations

Neutr

ino

Sup

er-

beam

s

Oth

er

Lab

s &

U

niv

ers

ities

PR

OT

ON

D

RIV

ER

8 G

eV

1.3

Ge

V

SNS & DESY

Page 15: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Page 16: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Page 17: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Page 18: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Page 19: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Page 20: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Page 21: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Page 22: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Page 23: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Page 24: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Page 25: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Ma

in P

ara

met

er D

ecis

ion

s

1.

Ma

in I

nje

cto

r B

eam

: (

1.5

E1

4, 1

.5 s

ec, 2

MW

)

2.

Pu

lse

Pa

ram

eter

s:

( 8

mA

x

3 m

sec

x

2.5

Hz)

Ult

imate

Upgra

de:

(2

5 m

Ax

1 m

sec

x

10 H

z)

3.

Op

era

tin

g F

req

uen

cy:

(1

30

0 M

Hz

/ 3

25

MH

z)

4.

Co

pp

er –

to –

SC

RF

tra

nsi

tio

n:

(1

5 M

eV)

5.

Sp

ok

es–

to–

Ell

ipti

cal

tra

nsi

tion

: (1

10

-4

00

MeV

)

6.

Des

ign

Ma

rgin

s o

n 8

GeV

H-

Tra

nsp

ort

Page 26: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Pri

mar

y P

aram

eter

Lis

t (f

or

refe

rence

)

PR

IMA

RY

PA

RA

ME

TE

RS

8 G

eV

In

itia

l 0

.5 M

W

{Ult

ima

te 2

MW

in

Bra

ck

ets

}L

ina

c b

ea

m k

ine

tic

en

erg

y8

Ge

V

Lin

ac

Pa

rtic

le T

yp

es

Ba

se

lin

e M

iss

ion

via

fo

il s

trip

pin

g i

n t

ran

sfe

r lin

e

Po

ss

ible

w/u

pg

rad

e o

f P

ha

se

Sh

ifte

rs &

In

jec

tor

Lin

ac

Sta

nd

-Alo

ne

Be

am

po

we

r0

.5 {

2.0

}M

W8

Ge

V b

ea

m p

ow

er

av

aila

ble

dir

ec

tly f

rom

lin

ac

Lin

ac

Pu

lse

re

pe

titi

on

ra

te2

.5

{10

}H

z

Lin

ac

ma

cro

pu

lse

wid

th3

.0 {

1.0

}m

s

Lin

ac

cu

rre

nt

(av

g.

in m

ac

rop

uls

e)

8.7

{2

6}

mA

Lin

ac

cu

rre

nt

(pe

ak

in

ma

cro

pu

lse

)9

.3

{28

}m

A

Lin

ac

Be

am

Ch

op

pin

g f

ac

tor

in m

ac

rop

uls

e9

4%

Fo

r a

dia

ba

tic

ca

ptu

re w

ith

70

0n

s a

bo

rt g

ap

.

Lin

ac

Pa

rtic

les

pe

r m

ac

rop

uls

e1

.56

E+

14

Lin

ac

Ch

arg

e p

er

ma

cro

pu

lse

26

uC

Lin

ac

En

erg

y p

er

ma

cro

pu

lse

20

8k

J

Lin

ac

av

era

ge

be

am

cu

rre

nt

0.0

7 {

0.2

6}

mA

Lin

ac

be

am

ma

cro

pu

lse

du

ty f

ac

tor

0.7

5

{1

.0}

%

Lin

ac

RF

du

ty f

ac

tor

1.0

0

{1

.3}

%

Lin

ac

Ac

tiv

e L

en

gth

in

clu

din

g F

ron

t E

nd

61

4m

Exc

lud

es

po

ss

ible

exp

an

sio

n l

en

gth

Lin

ac

Be

am

-flo

or

dis

tan

ce

0.6

9m

=2

7 i

n.

sa

me

as

Fe

rmila

b M

ain

In

jec

tor

Lin

ac

De

pth

Be

low

Gra

de

9m

sa

me

as

Fe

rmila

b M

ain

In

jec

tor

Tra

ns

fer

Lin

e L

en

gth

to

Rin

g9

72

mfo

r M

I-1

0 I

nje

cti

on

po

int

Tra

ns

fer

Lin

e T

ota

l B

en

d4

0d

eg

two

20

-de

gre

e c

ollim

ati

on

arc

s

Rin

g c

irc

um

fere

nc

e3

31

9.4

mF

erm

ila

b M

ain

In

jec

tor

Rin

g B

ea

m E

ne

rgy

8-1

20

Ge

VM

I c

yc

le t

ime

va

rie

s w

ith

en

erg

y

Rin

g B

ea

m P

ow

er

on

Ta

rge

t2

MW

~ i

nd

ep

en

de

nt

of

MI

Be

am

En

erg

y

Rin

g C

irc

ula

tin

g C

urr

en

t2

.3A

Rin

g c

yc

le t

ime

0.2

-1.5

se

cd

ep

en

ds

on

MI

be

am

en

erg

y &

fla

t-to

p

Rin

g P

roto

ns

pe

r P

uls

e o

n T

arg

et

1.5

0E

+1

4p

roto

ns

Rin

g C

ha

rge

pe

r p

uls

e o

n t

arg

et

25

uC

Rin

g E

ne

rgy p

er

pu

lse

on

ta

rge

t2

00

-30

00

kJ

at

8-1

20

Ge

V

Rin

g P

roto

n p

uls

e l

en

gth

on

ta

rge

t1

0u

s1

tu

rn,

or

lon

ge

r w

ith

re

so

na

nt

ex

tra

cti

on

Lin

ac

Wa

ll P

ow

er

5.5

{1

2.5

}M

Wa

pp

rox

3 M

W S

tan

db

y +

1M

W /

Hz

Pro

ton

s

H -

io

ns

Ele

ctr

on

s

Page 27: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Lin

ac S

egm

ent

Det

ails

(f

or

refe

rence

)

Open T

ech

nic

al C

hoic

e: 3-s

poke

or E

lliptic

al

Room

Tem

pS

RF

SR

FS

po

ke O

ptio

n

TS

R 1

-spoke

2-s

poke

3-s

poke

Low

Mediu

m

Fre

quency

, MH

z

325

325

325

325

325

1300

1300

1300

1300

Energ

y R

ange, M

eV

0.0

65-3

3-1

515-3

333-1

10

110-4

00

110-1

75

175-4

00

400-1

200

1200-8

000

Beta

geom

etric

al

-

0.0

8 to

0.1

8

0.2

10.4

0.6

10.4

70.6

10.8

11.0

0

Num

ber of ca

vitie

s or re

sonato

rs

421

16

28

42

16

32

48

288

Num

ber of acc

ele

ratin

g g

aps

/ cavi

ty -

42

34

66

89

Epeak,

MV

/m

32.1

TB

D32

32

32

52

52

52

52

Eacc

, MV

/m

-

2.3

to 3

.7

10.6

710.6

710.6

715.2

19.2

23.7

26

Cavi

ty e

ffect

ive le

ngth

, cm

-

15 to 3

2

13

36.9

85.8

32.5

42.2

74.8

103.8

Syn

chro

nous

phase

, deg (ty

p.)

-

-40 to -30

-30

-30

-30 to

-20

-30

-25

-20

-16

Length

of S

egm

ent,

m

~4

10.4

12.5

17.2

64

18.8

38.5

70.1

438.3

Num

ber of C

ryom

odule

s-

-1

26

24

636

Cavi

ties

per C

ryom

odule

-

-

16

14

78

88

8

Magnetic

Focu

sing T

ype

-S

ole

noid

Sole

noid

Sole

noid

Quad

Quad

Quad

Quad

Quad

Couple

r P

ow

er In

itial {

Ulti

mate

}, k

W

125

40 {54}

9 {26}

34 {102}

80 {238}

42 {125}

72 {214}

133 {398}

220 {660}

Cavi

ties

per K

lyst

ron In

itial {

Ulti

mate

}42 {14}

48 {24}

36 {12}

Num

ber of K

lyst

rons

Initi

al {

Ulti

mate

}1 {3}

1 {3}

8 {24}

1 {2}

TE

SLA

Hig

h R

FQ

1 {2}

72 {36}

48 {24}

Ellip

tical O

ptio

n

•P

ara

met

er L

ist

giv

es s

ub

syst

em d

eta

ils

for

tech

nic

all

y f

easi

ble

ba

seli

ne

htt

p:/

/td

serv

er1

.fn

al.

go

v/8

gev

lin

acP

ap

ers/

Pa

ram

ete

rLis

t20

05

/CD

0_

Pa

ram

eter

_L

ist_

Cu

rren

t_V

ers

ion

.pd

f

Page 28: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Lin

ac

Pu

lse

Pa

ram

eter

s

Co

mp

ari

son

wit

h O

ther

SR

F L

ina

cs

8 G

eV

Init

ial

8 G

eV

{Ult

imate

}

SN

S (

Sp

all

ati

on

Neu

tron

Sou

rce)

TE

SL

A-5

00

(w/

FE

L)

TE

SL

A-8

00

Lin

ac E

ner

gy

8 G

eV8 G

eV1 G

eV500 G

eV800 G

eV

Par

ticl

e T

ype

H- ,

e+, or

e-H

- , e+

, or

e-H

-e+

, e-

e+, e-

Bea

m P

ow

er0.5

MW

2 M

W1.5

6 M

W22.6

MW

34 M

W

AC

Pow

er (

incl

. w

arm

FE

)5.5

MW

13 M

W~

15 M

W97 M

W150 M

W

Bea

m P

uls

e W

idth

3 m

sec

1 m

sec

1 m

sec

0.9

5 m

sec

0.8

6 m

sec

Bea

m C

urr

ent(

avg. in

puls

e)8.6

mA

26 m

A26 m

A9.5

mA

12.7

mA

Puls

e R

ate

2.5

Hz

10 H

z60 H

z5(1

0)

Hz

4 H

z

# S

uper

conduct

ing C

avit

ies

384

384

81

21024

21852 /

2

# C

ryom

odule

s48

48

23

1752

1821

# K

lyst

rons

12

33

93

584

1240

# C

avit

ies

per

Kly

stro

n(t

yp)

36

12

136

18

Cav

ity S

urf

ace

Fie

lds

(max

)52 M

V/m

52 M

V/m

35 M

V/m

46.8

MV

/m70 M

V/m

Acc

el. G

radie

nt

(max

) 2

5 M

V/m

25 M

V/m

16 M

V/m

23.4

MV

/m35 M

V/m

Lin

ac A

ctiv

e L

ength

614 m

614 m

258 m

22 k

m22 k

m

Page 29: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

FermilabTw

o D

esig

n P

oin

ts f

or

8 G

eV L

inac

Init

ial:

0.5

MW

Lin

ac

Bea

m P

ow

er

(B

AS

EL

INE

)

8.3

mA

x 3

mse

c x

2.5

Hz

x 8

GeV

= 0

.5 M

W

Tw

elve

Kly

stro

ns

Req

uir

ed

Ult

ima

te:

2 M

W L

ina

c B

eam

Po

wer

25 m

A x 1

mse

c x

10 H

z x

8 G

eV =

2.0

MW

33 K

lyst

rons

Req

uir

ed

Eit

her

Op

tio

n S

up

port

s:

1.5

E1

4 x

0.7

Hz

x 1

20

GeV

= 2

MW

B

eam

Po

wer

fro

m F

erm

ila

b M

ain

In

ject

or

Page 30: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

β=

=1β

=1β

=1β

=1β

=1β

=1β

=1β

=1

TE

SL

A L

INA

C8 K

lyst

rons

288 C

avit

ies

in 3

6 C

ryom

odule

s 130

0 M

Hz β

=1

β<

1T

ES

LA

LIN

AC

2 K

lyst

rons

96 E

llip

tica

l C

avit

ies

12 C

ryom

odule

s

1300 M

Hz

0

.1-1

.2 G

eV

β=

=1β

=1β

=1β

=1β

=1β

=1β

=1β

=1

β=

=1β

=1

β=

=1β

=1β

=1β

=1β

=1β

=1β

=1β

=1β

=1β

=1β

=1β

=1

10 M

WT

ES

LA

Kly

str

on

s4

8 C

avit

es/

Kly

stro

n

β=

.81β

=.8

=.8

=.8

=.8

=.8

1

8 C

avit

es/

Cry

om

od

ule

0.5

MW

In

itia

l 8 G

eV

Lin

ac

11 K

lystr

ons

(2 t

ypes)

470 C

avitie

s

53 C

ryo

module

s

“P

UL

SE

D R

IA”

Fro

nt

End L

ina

c

325 M

Hz

0-1

10 M

eV

H-

RF

QM

EB

TR

TS

RS

SR

DS

R

3 M

WJP

AR

CK

lystr

on

Mu

lti-

Cav

ity F

anou

tat

10

-5

0 k

W/c

avit

y

Ph

ase

and A

mp

litu

de

Con

trol

w/

Fer

rite

Tu

ner

s

DS

R

β=

.47β

=.4

=.6

=.6

=.6

=.6

1

or…

32

5 M

Hz

Sp

oke

Res

on

ato

rs

β=

=1

10

MW

TE

SL

AK

lys

tro

ns

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

16 C

avit

es

/ K

lyst

ron

Mo

du

lato

r2 M

W U

ltim

ate

8 G

eV

Lin

ac

32 K

lystr

ons

(2 t

ypes)

470 C

avitie

s

53 C

ryo

module

s

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

Modula

tor

36 C

avit

es/

Kly

stro

n

12 C

avit

es

/ K

lyst

ron

6 K

lyst

rons

96 E

llip

tica

l C

avit

ies

12 C

ryom

odule

s

Page 31: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Init

ial �

Ult

imat

e U

pg

rad

e E

qu

ipm

ent

•In

itia

l 0

.5 M

W G

all

ery i

s n

earl

y e

mp

ty

–O

ne

Kly

stro

n e

ver

y 1

80 f

eet

•U

ltim

ate

2 M

W G

all

ery i

s co

mfo

rta

ble

–O

ne

Kly

stro

n e

ver

y 6

0 f

eet

Page 32: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

ILC

–C

om

pati

ble

Op

erati

ng F

req

uen

cies

Foll

ow

ing t

he

sele

ctio

n o

f th

e C

old

SC

RF

Op

tion

for

the

ILC

,

We

have

chose

n T

ES

LA

/XF

EL

Com

pati

ble

Fre

qu

enci

es:

•1

300

MH

zM

ain

Lin

ac (=

IL

C /

TE

SL

A /

XF

EL

)

•3

25

MH

z(=

130

0M

Hz/

4)

F

ront-

End

Lin

ac (

= J

PA

RC

)

(

a g

ift

! )

Valu

ab

le a

sset

s at

thes

e fr

equ

enci

es:

SR

F C

avit

ies,

R

F C

oup

lers

, C

ryo

mo

du

le D

esig

ns,

Kly

stro

ns,

Fro

nt-

End

Lin

ac D

esig

ns,

C

oll

abora

tors

(e.

g. IL

C,

Euro

-XF

EL

, JP

AR

C…

)

In t

he

fin

al

an

aly

sis,

it

is m

uch

easi

er t

hes

e d

ays

to d

evel

op

a

new

SR

F c

avit

y d

esig

n t

han

to d

evel

op

a n

ew K

lyst

ron

.

Page 33: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

8 G

eV L

inac

Kly

stro

ns

–2

Ty

pes

To

shib

a E

37

40

A

32

5 M

Hz

3

MW

(17

Del

iver

ed f

or

JPA

RC

)

Th

ale

s T

H1801

1300 M

Hz

10 M

W

Mu

ltip

le V

endors

Page 34: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Co

pp

er-t

o-S

CR

F T

ran

siti

on

•W

e h

av

e ch

ose

n 1

5 M

eV (

RF

Q +

wa

rm T

SR

s.)

–M

uch

low

er t

han

SN

S (

~ 1

86 M

eV)

–A

llow

s S

ingle

Kly

stro

n t

o d

rive

linac

up t

o 1

10 M

eV

–L

ever

ages

use

s of

Fas

t P

has

e S

hif

ters

to p

roduce

man

y

chan

nel

s of

RF

fro

m a

sin

gle

Kly

stro

n

•P

rev

iou

s D

esig

n S

tud

y a

ssu

med

85

MeV

DT

L

–C

onven

tional

Solu

tion, st

ill

val

id

–M

odif

ied C

om

mer

cial

Pro

duct

at

325 M

Hz

–R

equir

ed 7

Kly

stro

ns,

$30M

+ c

onti

ngen

cy e

tc.

Page 35: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

FermilabSp

ok

es-t

o-E

llip

tica

l T

ran

siti

on

1.

Pre

serv

ing

tw

o t

ech

nic

al

op

tio

ns

(11

0-4

00

MeV

):

1.

325 M

Hz

trip

le-s

poke

Res

onat

ors

(

BA

SE

LIN

E)

2.

1300 M

Hz

Ell

ipti

cal

Cav

itie

s

2.

Th

e tr

ad

eoff

s h

av

e b

een

ex

ten

siv

ely

dis

cuss

ed

for

the

Ra

re I

soto

pe

Acc

eler

ato

r (R

IA).

3.

Ou

r D

ecis

ion

Wil

l b

e b

ase

d o

n:

1.

Acc

eler

ator

Physi

cs

2.

Cost

3.

Coll

abora

tion

Page 36: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

β=

=1β

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1

Mo

du

lato

r

10

MW

TE

SL

AK

lystr

on

s3

6 C

avit

es/

Kly

stro

n

TE

SL

A L

INA

C8 K

lyst

rons

288 C

avit

ies

in 3

6 C

ryom

odule

s 130

0 M

Hz β

=1

β<

1T

ES

LA

LIN

AC

2 K

lyst

rons

96 E

llip

tica

l C

avit

ies

12 C

ryom

odule

s

1300 M

Hz

0

.35-1

.2 G

eV

β=

=1β

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1

Mo

du

lato

r

10

MW

TE

SL

AM

ulti-B

eam

Kly

str

on

s4

8 C

avit

es/

Kly

stro

n

β=

.81

Mo

du

lato

r

β=

.81β

=.8

=.8

=.8

=.8

1

8 C

avit

es/

Cry

om

od

ule

0.5

MW

In

itia

l 8 G

eV

Lin

ac

11 K

lystr

ons

(2 t

ypes)

449 C

avitie

s

51 C

ryo

module

s

“P

UL

SE

D R

IA”

Fro

nt

End L

ina

c

325 M

Hz

0-3

50 M

eV

H-

RF

QM

EB

TR

TS

RS

SR

DS

R

3 M

WJP

AR

CK

lystr

on

sM

ult

i-C

avit

y F

anou

tat

10

-5

0 k

W/c

avit

y

Ph

ase

and A

mp

litu

de

Con

trol

w/

Fer

rite

Tu

ner

s

DS

R

350

MeV

110

MeV

TS

RT

SR

TS

RT

SR

TS

RT

SR

or…

13

00 M

Hz

Ell

ipti

cal

Ca

viti

es

32

5 M

Hz S

po

ke

Op

tio

n

Mo

du

lato

r

Page 37: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

β=

=1β

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1

Mo

du

lato

r

10

MW

TE

SL

AK

lystr

on

s3

6 C

avit

es/

Kly

stro

n

TE

SL

A L

INA

C8 K

lyst

rons

288 C

avit

ies

in 3

6 C

ryom

odule

s 130

0 M

Hz β

=1

β<

1T

ES

LA

LIN

AC

2 K

lyst

rons

96 E

llip

tica

l C

avit

ies

12 C

ryom

odule

s

1300 M

Hz

0

.1-1

.2 G

eV

β=

=1β

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1β

=1

Mo

du

lato

r

β=

=1β

=1β

=1

Mo

du

lato

r

10

MW

TE

SL

AM

ulti-B

eam

Kly

str

on

s4

8 C

avit

es/

Kly

stro

n

β=

.81

Mo

du

lato

r

β=

.81β

=.8

=.8

=.8

=.8

1

8 C

avit

es/

Cry

om

od

ule

0.5

MW

In

itia

l 8 G

eV

Lin

ac

11 K

lystr

ons

(2 t

ypes)

449 C

avitie

s

51 C

ryo

module

s

“P

UL

SE

D R

IA”

Fro

nt

End L

ina

c

325 M

Hz

0-1

10 M

eV

H-

RF

QM

EB

TR

TS

RS

SR

DS

R

3 M

WJP

AR

CK

lystr

on

Mu

lti-

Cav

ity F

anou

tat

10

-5

0 k

W/c

avit

y

Ph

ase

and A

mp

litu

de

Con

trol

w/

Fer

rite

Tu

ner

s

DS

R

Mo

du

lato

r

350

MeV

100

MeV

TS

RT

SR

TS

RT

SR

TS

RT

SR

or…

13

00 M

Hz

Ell

ipti

cal

Ca

viti

es

Sp

ok

e O

pti

on

β=

.47

Mo

du

lato

r

β=

.47β

=.6

=.6

=.6

=.6

1

or…

32

5 M

Hz

Sp

oke

Res

on

ato

rs

Ell

ipti

ca

l O

pti

on

Page 38: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

32

5 M

Hz

Sp

ok

e R

eso

nat

ors

•W

ell

Dev

elo

ped

Tec

hn

olo

gy

fo

r R

IA,

AP

T,.

..

•S

imu

lati

on

s in

dic

ate

ex

cell

ent

bea

m d

yn

am

ics

•R

un

s P

oo

l-B

oil

ing

at

4.5

K –

Sim

ple

Cry

osy

stem

•R

&D

Dem

on

stra

tio

n (

SM

TF

):

� ���b

eam

pro

per

ties

wit

h p

uls

ed o

per

ati

on

.

Ken

Sh

epar

d’s

Tal

k

Page 39: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

32

5 M

Hz

Fro

nt-

En

dLin

ac

325 M

Hz K

lystr

on –

Toshib

a E

3740A

(J

PA

RC

)

115kV

Puls

e T

ransfo

rmer

Mo

du

lato

r

Capacitor

/ S

witch /

Bouncer

Charg

ing

Supply

RF

Q

ME

BTS

CR

F S

poke

Reson

ato

rC

ryom

od

ule

s

RF

Dis

trib

ution

Waveguid

e

Ferr

ite

Tuners

Sin

gle

Kly

str

on

Feeds S

CR

F L

inac

to E

> 1

00 M

eV

Page 40: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

M

325 M

Hz R

F S

yste

m

Pu

lse

T

ran

sfo

rme

r&

Oil

Ta

nk

IGB

T

Sw

itch &

B

ouncer

CA

P

BA

NK

10

kV

11

0 k

V

Charg

ing

Supply

300kW

MO

DU

LA

TO

R:

FN

AL

/TT

F R

eco

nfigu

rab

le f

or

1,2

or

3 m

se

c b

ea

m p

uls

e

Sin

gle

JP

AR

C

Kly

str

on

325M

Hz

3 M

W

WR

2300

Dis

trib

utio

n W

ave

guid

e

TOSHIBA E3740A

I Q M

EI Q M

BI Q M

TI Q M

R F

Q

I Q M

Cab

les t

oT

unne

l

Fa

st

Fe

rrite

Is

ola

ted

I/Q

M

odu

lato

rs

RF

Co

up

lers

SI Q M

SI Q M

RI Q M

SI Q M

SI Q M

RI Q M

40

0kW

20

kW

DI Q M

SI Q M

RI Q M

DI Q M

SI Q M

RI Q M

12

0 k

W

10kV

H-

Mediu

m E

nerg

yB

eam

Tra

nsport

Copper

Cavi

ties

Ra

dio

F

req

ue

nc

yQ

ua

dru

po

le

Cry

om

od

ule

#1

S

ing

le-S

po

ke

Res

on

ato

rs

Cry

om

od

ule

#2

D

ou

ble

-Sp

ok

eR

es

on

ato

rs

20

kW

Page 41: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

•B

eta

<1

cav

itie

s a

re

freq

uen

cy s

cale

d f

rom

805

MH

z d

esig

ns

for

SN

S/J

LA

B a

nd

RIA

/MS

U/J

LA

B

•F

NA

L/M

SU

Des

ign

coll

ab

ora

tio

n i

nv

esti

gati

ng

“lo

w-l

oss

”g

eom

etri

es f

or

1300

MH

z B

eta=

0.8

1

1300

MH

z E

llip

tica

l C

avit

es

Page 42: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

13

00

MH

z C

ryo

mo

du

les

OP

TIO

N O

F

EL

LIP

TIC

AL

ME

DIU

M-B

ET

A

CA

VIT

ES

11

0 -

40

0 M

eV

13

00

MH

z E

LL

IPT

ICA

L C

AV

ITY

CR

YO

MO

DU

LE

S:

2-4

TY

PE

S

Be

ta =

0.4

7

2 C

ryo

mo

du

les

16

Ca

vit

ies

Be

ta =

0.6

1

4 C

ryo

mo

du

les

32

Ca

vit

ies

Be

ta =

0.8

1

6 C

ryo

mo

du

les

48

Ca

vit

ies

Be

ta =

1.0

0

36

Cry

om

od

s

28

8 C

av

itie

s

TE

SLA

(T

TF

3)

Gio

rgio

Ap

oli

nar

i’s

Tal

k

Page 43: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

April 7, 2004

G.W

.Foste

r -

SC

RF

Pro

ton D

river

Ferr

ite V

ecto

r M

od

ula

tor

R&

D

•P

rovid

es f

ast, f

lexib

le d

rive

to

in

div

idu

al ca

vite

s

of

a p

roto

n lin

ac,

wh

en

on

e is u

sin

g a

TE

SL

A-s

tyle

RF

fa

no

ut.

(1 k

lystr

on f

eeds 3

6 c

avitie

s)

•A

lso

ne

ed

ed

if

Lin

ac a

lte

rna

tes b

etw

ee

n e

-a

nd

P.

•T

his

R&

D w

as s

tart

ed

by S

NS

bu

t d

rop

pe

d d

ue

to

la

ck o

f tim

e.

SN

S w

en

t to

on

e-k

lystr

on

-pe

r-ca

vity

wh

ich

co

st th

em

a lo

t o

f m

on

ey (

$2

0M

-$

60

M).

Mak

ing th

is tec

hno

logy

wor

k is impo

rtan

t to the

fina

ncial fe

asibility

of th

e 8 G

eV Linac

.

Page 44: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

April 7, 2004

G.W

.Foste

r -

SC

RF

Pro

ton D

river

Cost

Driver:

Kly

str

on

s p

er

GeV 96

20

8.13

5

1.5

1.1

020

4060

8010

0

Spa

llatio

n N

eutr

on S

our

ce

FNA

L L

inac

Upg

rade

X-B

and

(war

m) N

LC

8 G

eV L

inac

(2 M

W)

8 G

eV L

inac

(0.

5 M

W)

TE

SLA

Kly

stro

ns P

er G

eV B

eam

Ene

rgy

Page 45: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Nov 1

8, 2004

G.W

.Foste

r -

Pro

ton D

river

RF

Fa

n-o

ut

for

8 G

eV

Lin

ac

CIR

CU

LA

TO

R/

IS

OLA

TO

R

Magic

Tee

Ferr

ite

Loaded

Stu

b

CA

VIT

Y

BE

AM

1/8

Pow

er

Split

(

9.0

3 d

B)

DIR

EC

TIO

NA

L

CO

UP

LE

R

1/7

Pow

er

Split

(

8.4

5 d

B)

1/6

Pow

er

Split

(

7.7

8 d

B)

1/5

Pow

er

Split

(

6.9

9 d

B)

1/4

Pow

er

Split

(

6.0

2 d

B)

1/3

Pow

er

Split

(

4.7

7 d

B)

1/2

Pow

er

Split

(

3.0

1 d

B)

E-H

TU

NE

R

KLY

ST

RO

N

35 foot

wave

guid

efr

om

galle

ryto

tunnel

Page 46: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

RF

Fanoutat E

ach C

avity

CIR

CU

LA

TO

R/

IS

OLA

TO

R

Magic

Tee

Ferr

iteLoaded

Stu

b

CA

VIT

Y

BE

AMDIR

EC

TIO

NA

L C

OU

PLE

R

E-H

TU

NE

R

KLY

ST

RO

N

35 foot

wave

guid

efr

om

galle

ryto

tunnel

CIR

CU

LA

TO

R /

IS

OLA

TO

R

-

Passes R

F p

ow

er

forw

ard

tow

ard

s c

avity

- D

ivert

s r

eflecte

d p

ow

er

to w

ate

r coole

d load

KLY

ST

RO

N

-

RF

Pow

er

Sourc

e

-

Locate

d in G

alle

ry a

bove t

unnel

- E

ach K

lystr

on F

eeds 8

-16 C

avitie

s

DIR

EC

TIO

NA

L C

OU

PLE

R

-

Pic

ks o

f a f

ixed a

mount

of

RF

pow

er

at

each s

tation

- P

asses r

em

ain

ing p

ow

er

dow

nstr

eam

to o

ther

cavitie

s

E-H

TU

NE

R

-

Pro

vid

es P

hase a

nd A

mplit

ude C

ontr

ol fo

r C

avitie

s

-

Bia

sed F

err

ite P

rovid

es E

lectr

onic

Contr

ol

SU

PE

RC

ON

DU

CT

ING

RF

CA

VIT

Y

-

Couple

s R

F P

ow

er

to B

eam

Page 47: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

FE

RR

ITE

VE

CT

OR

MO

DU

LA

TO

R(1

30

0 M

Hz W

ave

gu

ide

Ve

rsio

n)

Magic

Tee

MIC

RO

WA

VE

IN

PU

T P

OW

ER

fr

om

Kly

str

on a

nd C

ircula

tor

E

-HT

UN

ER

Reflecte

d P

ow

er

(absorb

ed b

y circula

tor)

AT

TE

NU

AT

ED

O

UT

PU

T T

O C

AV

ITY

ELE

CT

RO

NIC

TU

NIN

GW

ITH

BIA

SE

D F

ER

RIT

E

Bia

s C

oil

Ferr

ite

Loaded

Stu

b

FE

RR

ITE

LO

AD

ED

S

HO

RT

ED

ST

UB

SC

HA

NG

E E

LE

CT

RIC

AL

LE

NG

TH

DE

PE

ND

ING

O

N D

C M

AG

NE

TIC

BIA

S.

TW

O C

OIL

SP

RO

VID

E IN

DE

PE

ND

EN

TP

HA

SE

AN

D A

MP

LIT

UD

E C

ON

TR

OL O

F C

AV

ITIE

S

Page 48: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Adva

nce

d R

F D

istr

ibu

tio

n

DIR

EC

TIO

NA

L

CO

UP

LE

R

(PO

WE

R S

PL

IT) M

AG

IC T

EE

AN

D C

AV

ITY

RF

PO

WE

R C

OU

PL

ER

CIR

CU

LA

TO

R

AN

D L

OA

DC

OA

XIA

L

FE

RR

ITE

ST

UB

TU

NE

R A

ND

WA

VE

GU

IDE

TR

AN

SIT

ION

RF

FR

OM

KL

YS

TR

ON

E/

YE

T!

Page 49: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab3 T

yp

es o

f F

ast-

Fer

rite

Tuner

s

1.

Wa

veg

uid

e S

tyle

(p

roto

typ

ed i

n h

ou

se)

2.

Co

ax

ial

Sty

le (

pro

toty

ped

in

-ho

use

)

3.

Str

ip L

ine

Sty

le (

com

mer

cia

l p

rocu

rem

ent

via

AF

T)

•B

eca

use

of

this

dev

ice’

s im

po

rta

nce

to

th

e P

D,

all

th

ree

are

bei

ng

pu

rsu

ed i

n p

ara

llel

.

•A

t p

rese

nt,

it

ap

pea

rs t

ha

t a

ll 3

ap

pro

ach

es w

ill

lead

to w

ork

ab

le f

ull

-sp

ec d

evic

es.

Iou

ri

Ter

echk

ine’

s

Tal

k

Page 50: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

G.

W.

Fost

er –

SR

F 2

005

Fermilab

Key

Spec

ific

atio

n o

f F

erri

te T

uner

s

•P

ow

er H

an

dli

ng

0.6

MW

…5

0k

W

x4 f

or

full

ref

lect

ed s

tandin

g w

ave

exce

eded

by p

roto

types

(af

ter

som

e w

ork

!)

•R

an

ge

of

ad

just

men

t: +

/-4

5 d

egre

es

Lar

ger

is

poss

ible

•S

pee

d o

f R

esp

on

se:

1 d

egre

e p

er m

icro

seco

nd

Sim

ula

tions

indic

ate

3-5

x s

low

er m

ight

be

OK

•In

sert

ion

Lo

ss:

0.1

-0.2

dB

Cooli

ng e

asy a

t 6

00kW

pea

k, 1.5

% d

uty

fac

tor

Not

dom

inan

t co

ntr

ibuto

r to

RF

Dis

trib

uti

on L

oss

es

Page 51: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Fermilab

Ex

amp

les

of

Ph

ase

Sh

ifte

rs

L b

and (

1.2

–1.4

GH

z)

350

kW

pea

k p

ow

er

Fie

ld R

ang

e 8

00

–1

500

Oe

Ph

ase

shif

t -

600

°

Inse

rtio

n l

oss

-

0.2

dB

Coax

ial

Dev

ice,

Bel

l L

abs

1968

Str

ip-l

ine-

bas

ed d

esig

n, b

y A

FT

for

AN

L a

nd C

ER

N, 1

998 ~

2004

352

MH

z

250

kW

pea

k p

ow

er

25%

duty

cycl

e

130

ºph

ase

shif

t

Page 52: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

FermilabSN

S W

aveg

uid

e P

has

e S

hif

ter

R&

D

Wav

eguid

e-bas

ed dev

ice,

Yoon K

ang (

AN

L)

for

SN

S

~ 2

000

805

MH

z

500

kW

pea

k p

ow

er

8%

du

ty c

ycl

e

0.1

5 d

B i

nse

rtio

n l

oss

Page 53: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Fermilab

Hig

h P

ow

er 1

30

0 M

Hz

FV

M T

est

A0 1

300 M

Hz

Kly

stro

n

T =

250 µ

sec

F =

5 H

z

We

snu

ck o

nto

Hel

en’s

Kly

stro

n

wh

en s

he

wa

s o

ut

of

tow

n…

.

Page 54: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Fermilab

Hig

h P

ow

er F

erri

te T

un

er T

est

Tw

o m

ethods

of

phas

e m

easu

rem

ents

:

1.

Osc

illo

scope

mea

sure

men

ts

2.

Usi

ng a

vai

lable

IQ

modula

tor

Av

aila

ble

ph

ase

rang

e w

as

lim

ited

by s

par

kin

g t

hat

dev

elop

s n

ear

the

HO

M

reso

nan

ce f

requ

enci

es

Max

Pow

er -

2000 k

W

(requir

em

ent:

600 k

W)

Use

able

Phas

e sh

ift

~ 8

(requir

em

ent:

~90 d

egre

es)

Eli

min

atio

n o

f H

OM

res

onan

ces

has

incr

ease

d u

sable

ran

ge

to

~360 d

egre

es a

t lo

w p

ow

er l

evel

s.

SF

6ad

ded

Page 55: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

Fermilab

Co

axia

l P

has

e S

hif

ter

•Coax d

esig

n is

pre

ferr

ed

at 325M

Hz

•In

-house d

esig

n teste

d to

660kW

at 1300 M

Hz

•T

este

d a

t 300 k

W at A

NL

with A

PS

352M

Hz K

lystr

on

•F

ast coil

and flu

x re

turn

should

re

spond in ~

50us

Ran for

1 H

our

at 300kW

x 3

msec

x 2

Hz

with 4

°C T

em

p R

ise �

very

low

losses

Page 56: The SCRF Proton Driver A New High Intensity Proton Source ...MEBT RTSR SSR DSR Single 3 MW JPARC Klystron ... 40 deg two 20-degree collimation arcs Ring circumference 3319.4 m Fermilab

MO

RE

IN

FO

RM

AT

ION

•P

roje

ct s

ite:

htt

p:/

/pro

tondri

ver

.fnal

.gov

•P

hy

sics

an

d M

ach

ine

“C

D-0

” D

ocu

men

ts

•R

ecen

t D

irec

tor’

s R

evie

w:

htt

p:/

/pro

tondri

ver

.fnal

.gov/P

Dre

v15M

ar05.h

tm

•R

ecen

t IC

FA

Wo

rksh

op

:

htt

p:/

/ww

w.n

iu.e

du/c

lase

p/H

PS

Lco

nf/