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