2007 detectors study at CERN 1.SiPM time resolution 2.MAPD S60 3.Blue sensitive MAPD 4.New 16ch board 5.New HV

Beam CALICE trigger Read-out from the digital pipe-line Setup

22 -6x x3 σ t nsec SiPM

22 -6x x6 Av. Of all 3x3 σ t nsec N MIP

MAPD S60 5 detectors Ubias= v Id= nA Gain=1.64· ·10 6 Gpix=1.19· ·10 6 Cross-talk n= PDE λ =460 nm

45 PE

σ t nsec N pe

MAPD BS 2x2 mm pixels sensitivity shifted to the blue light region

Time of Δ max

Th ε%ε% Noise%

ε%ε% Th

New MAPD S60s 1. Sensitivity shifted to the blue region 2. Pixel's density of 40k per mm 2 is reached

8ch-14bit ADC Filter-Amplifier TLK 2501 Transiveir 2,5Gbite/sec Clock distributor FPGA VIRTEX4 Optical transiveir LVDS transiveir

Multi- channel base voltage system for Si- photo detectors System bus USB - RS485 bridge 16-channel Base voltage cells

Main parameters of 16-channel BV cells for Si- photo detectors. 1Range of max output voltageUp to 250V 2Range of output voltage regulationUmax/2 - Umax 3Precision of output voltage regulation10 bit or 12 bit 4Output voltages spread (channel from channel)1% 5Stability of an output voltages0,005 % 6Temperature coefficient of an output voltage200 ppm/K 7Maximal average output currentUp to 5 mkA 8Self-diagnosis of the BV channelYes 9Dimensions of 16- channel cell (preliminary)50x40x4 mm 10System bus6 line flat cable 11Max length of system busUp to 100 m 12Number of cells per system busUp to Number of cells per system controller SC (8128 channels)

SC508 For large system the System controller SC508 may be used. Up to 8128 base voltage channels.

BV System interface Main window Window for individual channel Free of charge control software for test purposes, Windows or LINUX based.

Conclusions 1.Study on time resolution of CALICE tiles was continued 2. New light detector MAPD S60 was studied 3. New MAPD 1,8x1,8 mm, with 3800 pixels and sensitivity shifted to the blue light region was tested 4. New 16 ch ADC board was designed and under construction now 5. Multi-channel base voltage system for Si- photo detectors was designed and under construction now