ELENA Fast Deflectors Generators N.Voumard, T. Gharsa.
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Transcript of ELENA Fast Deflectors Generators N.Voumard, T. Gharsa.
ELENA Fast DeflectorsGenerators
N.Voumard, T. Gharsa
Fast Deflector Control overviewFDS
Fast Deflector Switch
Fast pickupHV2
Fast pickup
Behlke Triggers
FEC/Ethernet
Local/Remote & Test Timing
FDTElectrostatic
Fast DeflectorTank
FDS fault / PXI fault
PDCCircuit brakers
230 VAC from EN/EL
PU analog Signals
Slow pickupAnalog Driver Unit
Timing verification
StatusBEHLKEs FaultTiming Fault
Earthing SwitchVacuum
Command HV ON/OFFSatus ON/OFF
Interlock To PXI
Interlock Status
Beam Permit
RS23
2 Co
mm
and
& S
tatu
s
Beam Interlock System
OASIS
Slow
Fast
ELENA - FAST DEFLECTOR FUNCTIONAL DIAGRAM OVERVIEW
CAPA 21uF / 10kV
Power Supply5V 12V -12V
HV1 (+/-)
CAPA Earthing switch
HV2 (+/-)
FDC8 x Fast Deflector Controller
PXI crate NI-PXIe
RT NI PXIe-8100
2 x RIO FPGA PXI-7854 (4xFDG)
2 x PXI-5105 8 Ch. 60Ms/s 12bit (4xFDG)
PXI-8430/8 RS-232 (8xFDG)
HVDPS High Voltage Dual Power Supply
CAEN N1470A
PCUPower Control Unit
Local Control Unit
General Interlock Unit
Analog Receiver Unit
Beam Interlock Unit
General Power Supply
Trigger adapter Unit
8kV - 3mA HV1 (+/-)8kV - 3mA HV2 (+/-)
BEHLKE 1HTS111-13-
HB-B-C
BEHLKE 2HTS111-13-
HB-B-C
Fast pickupHV1
CAPA 11uF / 10kV
230VAC
EIS
Emergency stop
Timing
Beam Interlock System
Fast Deflector Generator HV circuit overview
Rs
Rs
Rdis
Sw3a
Sw1
Rs
Rs
Rdis
Sw2b
Sw2
A
B
A
B
Deflector tank
t
U
t
URch Rch
Cbuf Cbuf
HVPSpos
HVPSneg
Slow
Pic
kup
Fast
Pic
kup
Fast
Pic
kup Sl
ow P
icku
p
Behlke switches The selected high voltage switches are semiconductor (MOSFET) based with safe push-pull functionality. This means they have an internal logic that avoids the high and low side switches of the push-pull to be closed at the same time, avoiding short-circuits.Behlke switches are ideal for this purpose and are well inside the voltage, current and timing settings for this application. These switches have to support at least 10kV and a feed trough current of 60A (pulsed). It also needs the lowest on-resistance as possible. The selected switch HTS 111-13-HB-B-C has the following characteristics:
- Max voltage : 2x 11.7 kV- Peak current : 2x 130 A- On-resistance : 2x 1.5 Ohm
High voltage pulse pickups
The two fast pickups are connected directly on the high voltage outputs to the fast deflector tank. The two pickups need to be compensated with capacitors to follow the fast rising and falling edges. A potentiometer and a variable capacitor are placed on the low voltage side of the divider to adjust the accuracy of the pickup.
Generator powering and emergency
AC/DCLPQ154
5V+/-12V
24V120W
230VAC
ROSS +12V-12V +5V
RossCtl 1
+5V
+12V-12V
+24V
COND UNIT
Local Control Unit Interlock Unit
Beam Interlock UnitAnalog receiver Unit
FILTER
HVPS
CAENN1470AR
2A FUSE
ALL INTEGRATED IN NIM STYLE BOX 68mmPCU
FDG
DC/DC
SMPS_OK
12V FAN
Emergency Stop
NO
DC-DC_OKROSSSTATE
2A FUSE
NO
EIS
Integration of the generators in the transfer lines
Racks layout
Racks Front View
IY...01=193 IY...02=193 IY...03=193
0
5
10
15
20
25
30
35
40
45
0
5
10
15
20
25
30
35
40
45
Operator PanelNI
PCU & HVPS 9 (&10)
TIMING
PCU & HVPS 7 & 8
PCU & HVPS 5 & 6
PCU & HVPS 3 & 4
PDC
PCU & HVPS 1 & 2
PXI 1
Front-end PC
PXI 2
Patch Panel
REGLETTE 230V
TABLE
SCOPE
Patch Panel
HVPS ARU
1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 17 18 20 21 22 23 2415 19 25
EIU
CH0
CH1
CAEN
Pulse Pickup Pos
Capacitor Pickup Pos
Pulse Pickup Neg
Capacitor Pickup Neg
IN
IN
IN
INOUT
OUT
OUT
OUT
PCU & HVPS Crate Organization
EIS
EIS
HVPSPCU ARU
CH0
CH1
CAEN
Pulse Pickup Pos
Capacitor Pickup Pos
Pulse Pickup Neg
Capacitor Pickup Neg
IN
IN
IN
INOUT
OUT
OUT
OUT
EIS
VETO A
VETO B
SAFE
UNSAFE
+24V
TEST
PCU
LOC REM
ON/OFF
+24V
+12V
-12V
+5V
CTRLVAC INTL
FDGCONTROL
PCU
LOC REM
ON/OFF
+24V
+12V
-12V
+5V
CTRLVAC INTL
FDGCONTROL