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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