Multichannel readout electronics for MPGD based on different types of IDEAS chips. Nail Malakhov. David Watts.

Multichannel readout electronics for MPGD

based on different types of IDEAS chips.

Nail Malakhov.David Watts.

IDEAS chips Self triggering : VATAGP5 (triggers and analog readout) : • 128 channels. 40 nsec fast shaper and 250

nsec low shaper.• up to 10 MHz readout clock • Serial readout (128 channels : 12.8

mksec/event)• Sparse readout ( few triggered channels :

less 1 mksec)

VA64TAP_(few different version with different gain and dynamic region): • ONLY triggers (each channel independent) -

64 triggers output

• 64 channel. Peaking time = 50 nsec.• 2fC treshold (theoretical) and 10 fC

(practical).• 2.5 Mhz uniform rate (for signal above 70 fC)

VATA-GP5 block diagram

Det.

VFP

slowshaper

fast shaper

S/H

FORTrigger

tresh.

mask

discr.

Analogoutput

VATA-GP5 Principle of serial readout

VATA-GP5 Principle of sparse readout

101

0

1

128 Register

FOR

Analog Out

Data lock

Channel addressLookUp Table

7

Electronics for Gas Detectors

Introduction

IDEAS GP5 & GP3

DIODE PROTECTION

Current Developments

GP5 Electronics “MDAQ”

USB readout. Based on Altera and QiuickUSB board. 30 Mbyte/sec data readout. Limited by USB protocol.New version (design about finish) with GigaEthernet board .

Fe55. 2 layers readout. ROW data. No collimation….

Fe55. Data after pedestal and common mode correction.

Fe55. 1 mm collimator. 3 layers (60 degree) FGLDetector.

3800 V. Triple GEM. Fe55 (Red) and Sr90 spectrums.

Triple GEM. Sr90 spectrums. 3800 V(RED) and 3900 V.

Our collaborators :

THANK YOU!