KALI Presentation
Transcript of KALI Presentation
-
7/28/2019 KALI Presentation
1/26
High Power Pulsed Elec
AcceleratorsDevelopment for Indus
Applications
Dr. Archana Sharma
Email : [email protected]
Government of India
BHABHA ATOMIC RESEARCH CENTR
Beam Technology Development Grou
Accelerator & Pulse Power Division
Mumbai-400085- INDIA
-
7/28/2019 KALI Presentation
2/26
Expertise of BARC in Pulsed Accelerators
PRESENT STATUS OF KALI-5000 SYSTEM
(0.8-1 MV, 80 kA, 60 ns) 1.5 MV, 25kJ MARX GENERATOR 1MV, 5kJ, 100ns CASTOR OIL BLU 1 MV SF6 SPARKGAP SWITCH
GENERATION OF INTENSE RELATIVISTIELECTRON BEAMS (REB)
UTILIZATION OF REB for Flash X-Rays,HPM & Neutrons.
Topics Covered
-
7/28/2019 KALI Presentation
3/26
BARCs EXPERTISE
Since 1970s,Pulse Power Systems have beenIndigenously Developed by APPD, BARC
*KALI-75, 375kV, 2kA, 180ns;*KALI-85, 780kV, 4kA, 60ns;*KALI-200, 300kV, 15kA, 60ns;*KALI-1000, 300kV, 20kA, 100ns,*KALI-5000, tested up to 600kV, 40 GW, 100ns,
LIA-200, 200kV, 5kA, 100ns, 10-100Hz under commissioni
To make the system compact and repetitive,Consistent efforts are being made.
1
10
100
1000
10000
1970- 1980-
* KALI: Kilo- Ampere Line
-
7/28/2019 KALI Presentation
4/26
Schematic of KALI-5000
Pulsed Accelerator
1MeV electron beam puls
-
7/28/2019 KALI Presentation
5/26
Photograph of the
KALI-5000 PULSED Accelerato
(0.8-1MV, 80kA, 100ns, 5kJ)
-
7/28/2019 KALI Presentation
6/26
KALI-5000 SYSTEM (0.8-1MV, 40kA, 1
Vacuum
System
Diode end
Blumlein
SF6gas
-
7/28/2019 KALI Presentation
7/26
Principle of Marx Generato
R
(b) EQUIVALEN T C IRCU IT
NCo
LR
CHA
RGING
PO
WER
SU
PPLY
L S
S
TRIG
B
R B 1
1
1
SC 1
C
(c ) OUTPUT PU
R L
Vo
B 3
S
B
B 2
2
R
S2
S
C 2
SC
B 3
C
3
3
C S
RCV
R A 1 A 1 A 3A 2 A 2 R A3
(a ) SCH EM ATIC CIRCU IT OF MA RX GEN ERATO R
-
7/28/2019 KALI Presentation
8/26
Operation of Marx Genera
S S
CC
R
R
RR
S
CC
2
G13
25
A13 A14A
GR
5C
G3
B13
6
B
3
R
4
B3
2
B2
G2
R
R
3C
G1
RA2
R
a
1C
RR
+50kV
HVDCCHARGING
POWER
SUPPLY
CH+
A) WHILECHARGING:
2
TRIG.S1
B1R
TRIG.
R-50kV CH-
GND
A3
R
MODULE-1
-
7/28/2019 KALI Presentation
9/26
Operation of Marx Genera
S
B) WHILE DISCHARGING :
V-PROBE
10
LR
1 2
S 4 S 5
11C10C9C8C7C
5C4C3C2C1C
S
C 25 C 26 C 27 C 28 C 2
14S13S
FIRST MODULE
SECOND MODU
FIFTH MODUL
-
7/28/2019 KALI Presentation
10/26
Assembly of Marx Modul
SPARK GAP
PERSPEX SHEET
PLASTIC
CAPACITORS0.7mF, 50kV
PERSPEXCLAMP
SUPPORTFOR MOD
CHARES
MAR X G ENERATOR FOR KALI-500
NYLON ROD
-
7/28/2019 KALI Presentation
11/26
PHOTOGRAPH OF THEFIRST MARX MODULE
(END VIEW)
-
7/28/2019 KALI Presentation
12/26
Photograph of the
Assembled Marx Module
1.5MV, 25kJ
-
7/28/2019 KALI Presentation
13/26
PULSE FORMING LINE
(PFL)
Inner electrode
cV cR
Outer electrodeZo
LOAD
S
V 1
2o=
Dielectric Medium
Vc
THREE ELECTRODE CO-AXIAL BLUMLEIN
LENGTH-L
23R2
E Z
FASTSPARKGAP
OUTERCYLINDER
rr
E Z12
INTERMEDIATECYLINDER
INNERCYLINDER
-1MV
100ns
02312
0L
MATCHED LOADZ = 2 ZWHERE Z = Z =Z
CHARGING
INDUCTOR
V
500ns0
-1MV
From High
Voltage Pulse
Generator
R1
DESIGN EOF PFN
CharacteristZOM = (L /C )
1
Pulse,TOM =
Rise Time, t
Energy, EM =
Output Volta
2-electrode PFN
-
7/28/2019 KALI Presentation
14/26
End View of The Blumlei
Sparkgap and
Prepulse Inductor
-
7/28/2019 KALI Presentation
15/26
PULSE Generator
(Marx/Tesla Transformer)
Results of KALI-5000
Scale: 200kV/div,500ns/division
High VoltagePulse Forming Line
Water/oil filled
H.V.Switch
(spark gaps-
N2/SF6 filled)
Marx OutputPeak Voltage =600kV.
Charging time =500ns.
E- Beam curreImax = 71kA a600kV.
FWHM = 100n
-
7/28/2019 KALI Presentation
16/26
Relativistic Electron Beam
REB Generation
VACUUM
PULSEPOWER
SYSTEM
CATHODESOLINOID
COILS
FOILANODE
INSULATOR ELECTRONBEAM
BEAM TRANSPORT
REGION
CATHODE
DIO
EXPAN
DING
CATHO
DE
PLASM
A
-
7/28/2019 KALI Presentation
17/26
Virtual Cathode Oscillator
(VIRCATOR)
VIRTUALCATHODE
CATHODE
PULSEPOWERSYSTEM
VACUUM
WINDOW
H
ANODE
VACUUM
HPM weapons offer military commanders the
(i) Speed-of-light, all-weather attack of enemy electron
(ii) Area coverage of multiple targets with minimal prioon threat characteristics(iii) Surgical strike (damage, disrupt, degrade) at selected (iv) Minimum collateral damage in politically sensitive envi(v) Simplified pointing and tracking(vi) Low operating costs
~
-
7/28/2019 KALI Presentation
18/26
Backward Wave Oscillato
BWO-HPM device
V A C U U M
A N O D E
V
W
P U L S E P O W E RS Y S T E M
C A T H O D E
M A G N E T IC F IE L D
C O I L S
M A G N E T IC F IE L DC O I L S
S L O W W A V E
S LO W W A V E S T R U C T U R E
Efficiency: 20%
-
7/28/2019 KALI Presentation
19/26
Beam Plasma Device
For HPM generation
ANODE
PLASMACATHODE
PULSE
POWERSYSTEM
VACUUMWINDOW
VACUUM
Wide BW~100GHz,Low Efficiency
-
7/28/2019 KALI Presentation
20/26
Flash X-Rays
For a successful dynamic radiography,
(i) If higher the velocity of the moving object,
smaller duration of the X-ray flash will be nee(ii) Blurr produced on the stop motion radiog
for an object moving with velocity V &X-ray pulse duration T
-
7/28/2019 KALI Presentation
21/26
FLASH X-Ray Generation
INSULATOR BODY
CATHODEVACUUM
ANODE
X-RAY FLASH PROFILE
PULSEPOWERSYSTEM
INSULATOR BODY
INPUT PULSECATHODE
X
Y
SECTION AT X -Y
ANODE
APPLICATIONs of FXR:
(i) Radiography of radioactive sources:8Ci Ir-192 source radiographed (KALI-200)
(ii) Imaging the impact of projectile in or on a target,(iii) Imaging an explosively driven object during acceleration(iv) Observing the mechanics of detonation
-
7/28/2019 KALI Presentation
22/26
Flash X-Ray Generation
Flash X-ray from KALI-75 Normal X- ray Pof water
-
7/28/2019 KALI Presentation
23/26
VACUUM
ANODE
PULSEPOWER
SYSTEM
CATHODE
VIRTUAL
CATHODE
IONS
e_
CROS
FIELDION SOURSE
Collective IonCollective Ion AcceleraionAcceleraion
-
7/28/2019 KALI Presentation
24/26
CONCLUSIONSCONCLUSIONS
AN ELECTRON BEAM OF 600kV,
100ns has been produced.HPM ~1GW POWER, for shielding
FLASH X-RAYs for deeper & faster ION IMPLANTATION
for various Industrial Application
-
7/28/2019 KALI Presentation
25/26
THANKTHANK YOUYOU
-
7/28/2019 KALI Presentation
26/26