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A1515

16/14 Channel 1-1.3kV (1 - 3 mA) Individual Floating Channel Dual Range Boards for Quadruple and Triple GEM detectors
A1515 family are single width board (5 TE wide) that house 14 (/A1515TG/A1515CG/A1515TGHP) or 16 (A1515/A1515QG) independent high voltage Individual Floating channels. All versions are equipped with Radiall Multipin connectors. The following table shows the available models:

Model
Max Output V (kV)
Max Output I (mA)
# of ch
Features

A1515TG
1
1/0.1
14
For Triple GEM chambers

A1515QG
1
1/0.1
16
For Quadruple GEM chambers

A1515CG
1.3 (2 ch) - 1 (12 ch)
1/0.1
14
For Triple Cylindrical GEM chambers
A1515TGHP
1
3/0.3 (1.5 W max)
14
For Triple GEM chambers (high rate)
A1515
1
1/0.1
16
Non Stacked channels


The channels have floating return, independent one from another, insulated up to 5 kV (Full Floating channel). The output voltage range is 0 ÷ 1 kV or 0 ÷ 1.3 kV with 20 mV set and monitor resolution.

The output channels offer dual current ranges (software selectable)
For A1515TG/A1515QG/A1515CG:

High Power:

0 ÷ 1 mA

I set resolution: 20 nA

I mon resolution: 1 nA

Max power: 0.7 W

High Resolution:

0 ÷ 100 µA

I set resolution: 20 nA

I mon resolution: 100 pA


For A1515TGHP:

High Power:

0 ÷ 3 mA

I set resolution: 20 nA

I mon resolution: 3 nA

Max power: 1.5 W

High Resolution:

0 ÷ 300 µA

I set resolution: 20 nA

I mon resolution: 300 pA

Independently programmable for each channel:
- Output voltage:
- Current limit (Iset):
 
- V Ramp up/down:
- TRIP parameter
0 ÷ 1/1.3 kV
0 ÷ 1 mA/100 µA
0 ÷ 3 mA/300 µA
1 ÷ 100 V/sec
step: 20 mV
step: 20 nA
step: 20 nA
step: 1 V/sec

Four special version of the board (A1515TG/A1515QG/A1515CG/A1515TGHP) have been designed specifically for Gas Electron Multiplier (GEM) detectors. These boards have the channels internally stacked in order to power up 2 independent Triple GEM / Quadruple GEM / Triple Cylindrical GEM chambers. This configuration permits to avoid any possible issue related to the detector discharge and avalanche effects and also gives the possibility to fine tune the voltage on each detector layer easily.

A CAEN SY4527 mainframe equipped with 16 A1515TG/A1515QG/A1515CG boards is able to power 32 detectors and the high maximum current available on each channel allows managing the high segmentation of these detectors in the best way. In addition the 2-quadrant 100 µA low current range allows a 100 pA current monitoring resolution which allows the monitoring of ion backflow currents and also to perform real-time detector diagnostics.

Safety features includes:
  • Channels can be enabled or disabled through the Global Interlock logic.
  • Overvoltage and Undervoltage warning when the output voltage differs from the programmed value.
  • Safety Board Interlock: this protection disables the HV generation when the HV outputs are not connected to their loads.
  • Overcurrent detection: when a channel attempts to exceed the programmed current limit, it signaled to be in "overcurrent" and the channel enter in a TRIP status. The output voltage is varied to keep the current below the programmed limit for a programmable TRIP time. Overcurrent lasting more than set value, causes the following actions:
    • A1515 or A1515TG/A1515QG/A1515CG/A1515TGHP (not in GEM-mode) : the channel is switched off. Output voltage will drop to zero at Ramp-down rate. If TRIP is set to "constant current mode", the channel behaves like a current generator.
    • A1515TG/A1515QG/A1515CG/A1515TGHP (in GEM-mode): all stacked channels are switched off following a programmed sequence. Output voltages will drop to zero at Ramp-down rates. If TRIP is set to "constant current mode", the channel behaves like a current generator.
Moreover, are available the following accessories: Mate cable connector (Mod. A996) and relevant insertion/extraction tool (Mod. A995).

No. of Channels 16 or 14 (Floating Return) A1515TG, A1515QG, A1515CG, A1515TGHP: channel are grouped in two "complex" channels
Output Voltage 0÷1 kV
0÷1.3 kV (for 2 channels of A1515CG)
Polarity Floating 5 kV
Max. Output Current A1515 - A1515TG - A1515QG - A1515CG: 1 mA (700 mW)
A1515TGHP: 3 mA (1500 mW)
Voltage Set/Monitor Resolution 20 mV
Current Set Resolution 20 nA
Current Monitor Resolution
High Power:
 
High Resolution:
1 nA
3 nA
100 pA
300 pA
A1515 - A1515TG - A1515QG - A1515CG
A1515TGHP
A1515 - A1515TG - A1515QG - A1515CG
A1515TGHP
VMAX software 0÷1 kV or 0÷1.3 kV (A1515CG), settable for each channel
VMAX software resolution 1 V
Ramp Up/Down 1÷100 Volt/sec, 1 Volt/sec step, settable for each channel
Trip Max. time an "overcurrent" is allowed to last (seconds); common to all channels in a "complex channel". A channel in "overcurrent" works as a current generator; output voltage varies in order to keep the output current lower than the programmed value. "Overcurrent" lasting more than set value, causes the channel to "trip". Output voltage will drop to zero at the Ramp-down rate; in this case the channel is put in the off state. If trip= INFINITE, "overcurrent" lasts indefinitely. TRIP range: 0 ÷ 999.9 s; 1000 s = Infinite. Step = 0.1 s
Voltage Ripple differential mode: typical < 5 mV; max 10 mV
common mode: typical < 10 mV; max 15 mV
Voltage Monitor vs. Output Voltage Accuracy 0.2% ± 0.2V ± 50ppm/°C
Voltage Set vs. Output Voltage Accuracy 0.2% ± 0.2V ± 50ppm/°C
Imon det vs Output current accuracy 0.5% ±5nA ±50ppm/°C with output current from 10% to 100% f.s. and constant voltage
2% ±5nA ±50ppm/°C with output current up to 10% f.s. and constant voltage
Power consumption 90W full power for A1515 (16 CH)
80W standby consumer
Imon real vs current set accuracy 2% ±100nA
Maximum output power A1515TG/A1515QG/A1515CG: 700 mW per channel
A1515TGHP: 1.5W per channel
Code Description
WA1515QGXAAA A1515QG - 16 Channel Floating 1kV, 1mA Board for Quadruple GEM detectors
WA1515TGXAAA A1515TG - 14 Channel Floating 1kV, 1mA Board for Triple GEM detectors
WA1515CGXAAA A1515CG - 14 Channel Floating 1.3/1kV, 1mA Board for Cylindrical GEM detectors
WA1515TGHPXA A1515TGHP - 14 Channel Floating 1kV, 3mA Board (1,5W max) for Triple GEM detectors
WA1515XAAAAA A1515 - 16 Channel Floating 1kV, 1mA Board
Model Package Function Description Compare
All - Reset
A1510 Universal Multichannel System Floating High Voltage Power Supplies 12 Channel 100 V, 1/10mA Individual Floating Channel Dual Range Board
A1511B Universal Multichannel System Floating High Voltage Power Supplies 12 Channel 500 V, 1/10 mA Individual Floating Channel Dual Range Board
A1512 Universal Multichannel System Floating High Voltage Power Supplies 12 Channel 500 V, 1 mA/100 µA Individual Floating Channel Dual Range Board
A1515 Universal Multichannel System Floating High Voltage Power Supplies 16/14 Channel 1-1.3kV (1 - 3 mA) Individual Floating Channel Dual Range Boards for Quadruple and Triple GEM detectors
A1519B Universal Multichannel System Floating High Voltage Power Supplies 12 Channel 250 V, 0.1/1 mA Individual Floating Channel Dual Range Board
A1520P Universal Multichannel System Floating High Voltage Power Supplies 12 Channel 500 V/15 mA Individual Floating Channel Board
A1523 Universal Multichannel System Floating High Voltage Power Supplies 6 Ch 12 kV / 1 mA Common Floating Return Board
A1524 Universal Multichannel System Floating High Voltage Power Supplies 6 Ch 12 kV / 100 µA Common Floating Return Board
A1526 Universal Multichannel System Floating High Voltage Power Supplies 6 Ch 15 kV, 1 mA/100 µA Common Floating Return Dual Range Board
A1533 Universal Multichannel System Floating High Voltage Power Supplies 6 Channel Floating 4 kV, 3 mA Board
A1534 Universal Multichannel System Floating High Voltage Power Supplies 6 Channel 8 kV/200 µA Individual Floating Channel Board
A1535 Universal Multichannel System Floating High Voltage Power Supplies 12/24 Channel 3.5 kV/3 mA (8 W) Common Floating Return Boards
A1536 Universal Multichannel System Floating High Voltage Power Supplies 12/24/32 Channel 3 kV/1 mA Common Floating Return Boards
A1538D Universal Multichannel System Floating High Voltage Power Supplies 12 Channel 1.5 kV/10 mA (12W) Common Floating Return Board
A1539 Universal Multichannel System Floating High Voltage Power Supplies 12/24/32 Channel 100 V/10 mA Common Floating Return Boards
A1540 Universal Multichannel System Floating High Voltage Power Supplies 12/24/32 Channel 100 V/1 mA Common Floating Return Boards
A1540H Universal Multichannel System Floating High Voltage Power Supplies 12/24/32 Channel 100 V, 1 mA/100 µA Common Floating Return Dual Range Boards
A1541 Universal Multichannel System Floating High Voltage Power Supplies 12/24/32 Channel 500 V/10 mA Common Floating Return Boards
A1542 Universal Multichannel System Floating High Voltage Power Supplies 12/24/32 Channel 500 V/1 mA Common Floating Return Boards
A1542H Universal Multichannel System Floating High Voltage Power Supplies 12/24/32 Channel 500 V, 1 mA/100 µA Common Floating Return Dual Range Boards
A1550 Universal Multichannel System Floating High Voltage Power Supplies 12/24 Channel 5 kV/1 mA Common Floating Return Boards
A1560H Universal Multichannel System Floating High Voltage Power Supplies 8/16 Channel 6 kV/20 µA Common Floating Return Boards
A1561H Universal Multichannel System Floating High Voltage Power Supplies 12 Channel 6 kV/20 µA Common Floating Return Board
A1580H Universal Multichannel System Floating High Voltage Power Supplies 8/16 Channel 8 kV/20 µA Common Floating Return Boards
A1590 Universal Multichannel System Floating High Voltage Power Supplies 16 Channel 9 kV / 50 µA Common Floating Return Board
A2932 Universal Multichannel System Floating High Voltage Power Supplies 12/24/36/48 Channel 3 kV/250 µA Common Floating Return Distribution Boards
A2935 Universal Multichannel System Floating High Voltage Power Supplies 12/24/36/48 Channel 2.5 kV/500 µA Common Floating Return Distribution Boards
A7030 Universal Multichannel System Floating High Voltage Power Supplies 12/24/36/48 Channel 3 kV/1 mA (1.5W) Common Floating Return Boards
A7040 Universal Multichannel System Floating High Voltage Power Supplies 48 Channel 100V / 1mA Common Floating Return Board
A7042 Universal Multichannel System Floating High Voltage Power Supplies 48 Channel 500 V / 500µA Common Floating Return Boards
A7236 Universal Multichannel System Floating High Voltage Power Supplies 12/24/32 Channel 3.5 kV, 1.5/0.15 mA (4W) Common Floating Return Dual Range Boards
A7435 Universal Multichannel System Floating High Voltage Power Supplies 12/24 Channel, 3.5 kV, 3.5/0,35 mA (9W) Common Floating Return Dual Range Boards

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