Design of High Voltage System

Kyungju Ma & Reno Collaboratiors

9th RENO collaboration meeting, Oct 10, 2008

CAEN SY1527

CAEN HV Floating Power Supply Boards

A1932A

• One Primary and 48 distributed Channels

• 0 ~3kV output voltage

• Available with either positive or negative polarity

• 200mV Voltage Set/Monitor resolution• Voltage ripple smaller than 30mV pp

• Programmable TRIP parameter

•1~500Volt/sec programmable Ramp Up/Down

• Common Floating Return

• VMAX Trimmer for hardware maximum voltage adjustment

48 Channel 3kV Distributor Board-CAEN A1932A

Mod. A1932A front pannel

Components of front pannel External connectors

• Output Channels(1…48), • Floating Ground(FAGND),• IINT• IEXT

Multi connector Radiall 691803004 Type, 52pin male( to be mated with Radiall 691802002)

• FAGND Radiall R921921 socket, 2mm

• AGND Radiall R921921 socket, 2mm

• PASSIVE INTERLOCK 00-type LEMO connector

• SIGNAL INTERLOCK 00-type LEMO connector

Code Description

WA1932APAAAA A1932AP-SY1527H.V.channels+3kV/500uA-Multipin Conn.(48ch)

WA995XAAAAAA A995-insertion/extraction tool Radiall 282549024 for A996

WA996XAAAAAA A996-52 pin cable connector for A173XB-A183XB-A1932A-A1535

Ordering Option

External Connections and Ordering option

Needed Parts for HV Distributer

HV Distribution Box Design

High Voltage and PMT signal Decoupler Board Circuit

Circuit Diagram of the HV Distribution Box

49.9k, 1%

10K

10K4.7nF,3kV

4.7nF,3kV

4.7nF,3kV

49.9k, 1%

100k, 1%

FAG

AG

48

47

Radiall 48 pin contacts of Radiall 52 connector

PMT HV Splitter-TESTED R7081 PMT and HV supplying and signal lead circuit

Qbee BoardHV & Signa Decoupler BoxHV distribution Box(CAEN A1932A)

PMT input Card

RG303 PMT single cable48

SHV connector

SHV mountable connector

Radiall plug& multi HV Coaxial cable

Radiall Receptacle plug

Undecided part48 ch. PMT Signal connection to Qbee board

HV distributor to Qbee Board

19 inch(475mm)

48S

ign

al fro

m P

MT

48C

h H

V s

up

ply

Example for BOX Design

LEMO multi Coaxial Connector

LEMO S-Series Dimension

LEMO 5B, 5K

Harting Mini coax mini connector

Harting mini Coax connector cable assemble

Qbee board PMT input Card pin list and dimension

SUMMARY

• HV Distribution Supply module decide : CAEN Mod. A1932A• Circuit diagram of the HV PS Distribution Box is confirm• HV supply board to HV PS distribution box connection decide• HV PS Distribution Box to Qbee board connection study