APEXRUN-14

APEX Schedule April 1, 20148:

00am

Store

Elens commissioningGu, Fischer, Luo, Simon

10:0

0am

4:30

pm

2:00

pm

AC d

ipol

e se

tup

Bai

Mom

entu

m A

pert

ure

mea

sure

men

tLu

o

Injection

8:00

pm

Injection

DA

mea

sure

men

t w

ith

2.5G

eV w

orki

ng p

oint

Mon

tagu

e

10:0

0pm

Back

2Phy

sics

Coup

ling

mat

rix

mea

sure

men

tTe

piki

an

Injection

5:30

pm

ATS preparationGRD, Simon, Bai, Al

Store

Inje

ctio

n

12:0

0pm

Inje

ctio

nD

X Ap

ertu

re S

can

Luo,

Tep

ikia

n, A

l, Ba

i

11:0

0pm

APEXRUN-14

APEX OverviewDA

with

2.5

GeV

wor

king

poi

nt In

jecti

on, M

onta

gN

o da

ta d

ue to

mai

n po

wer

supp

ly Q

LI

Elens commissioningGu, Fischer, WhiteLuo, etc

•Confirmed e beam alignment with Au beam

Off-

mom

entu

m a

pert

ure

scan

Luo,

GRD

, Liu

etc

Firs

t Tel

esco

pe O

ptics

Squ

eeze

for R

HIC(

TOR)

test

GRD,

Luo

, Whi

te, S

hen,

Bai

• Ach

ieve

d 0.

6m b

eta*

at b

oth

IPs i

n Bl

ue w

ith

good

life

time

and

smal

l glo

bal b

eta-

beat

• Bea

m w

as re

-buc

kete

d an

d no

n-co

oled

DX a

pert

ure

scan

Luo,

Mar

usic

, Bai

, Tep

ikia

n, W

hite

Firs

t Tel

esco

pe O

ptics

Squ

eeze

for R

HIC(

TOR)

test

GRD,

Luo

, Whi

te, S

hen,

Bai

• Ach

ieve

d 0.

5m b

eta*

with

goo

d lif

etim

e aft

er

chro

mati

city

cor

recti

ons

Back to Physics collision right aftermidnight

IP tr

ansf

er m

ap: T

epik

ian

V ac

dip

ole

setu

p: B

ai

APEXRUN-14

Elens: Gu, Fischer, White, Luo, etc

Measured Orbit and Tune Shift

APEXRUN-14

Elens: Gu, Fischer, White, Luo, etc

Summary

APEXRUN-14

Momentum Aperture MeasurementAl, cait, chuyu, grd, Mei, Michiko, Yun

APEXRUN-14

First Telescope Optics Squeeze for RHIC testGRD, Marusic, Shen, White, Luo, Tepikian, Bai

IP6: Beta*x,y=0.57m,0.57mIP8: Beta*x,y=0.62m,0.61m IP6: Beta*x,y=0.55m,0.43m

IP8: Beta*x,y=0.54m,0.53m

Au14-ats::beta60Au14-ats::beta50

DX aperture Scan at Injection

APEXRUN-14

First Telescope Optics Squeeze for RHIC testGRD, Marusic, Shen, White, Luo, Tepikian, Bai

Au14-ats::beta60

APEXRUN-14

First Telescope Optics Squeeze for RHIC testGRD, Marusic, Shen, White, Luo, Tepikian, Bai

APEXRUN-14

First Telescope Optics Squeeze for RHIC testGRD, Marusic, Shen, White, Luo, Tepikian, Bai

Poor data quality due to lower bunch intensity

Au14-ats::beta50

APEXRUN-14

DX Aperture ScanMarusic, Luo, Tepikian, Bai

Summary & Plan1. Full sets of data taken at injection Measurement done at injection after a dipole QLI2. Detailed data analysis is under waylikely beam began to loss at 1.6mrad ( half of maximum )3. May repeat this experiment once → one confirmation at injection → one confirmation at store