Upgrade TC for MEG2
On behalf of TC group
PSI 10 May 2012
Preliminary test on SiPM array
SensL ArraySL-4-30035-CER
Single Pixel active area 3.05 x 3.05 mm2
Operating voltage (typical) 29.5V
Array layout 4 x 4 pixels
Total array active area 13.4 x 13.4 = 180 mm2
Test conditions
Here the polarization circuit (see the separation in 4 group of 4 pixel each):
A diode laser source at 405nm, 200 ps width injects light in an optical fiber
The signal can be analyzed by means of a 6GHz Tektronix scope or a Lecroy 1GHz.
Preliminary tests just started.
Hamamatsu
S11828-3344M
Advansid ASD-
SiPM4S-P- 4×4T
Single pixel area 4x4mm2
Active area 4x3x16mm2
Operating voltage 35+/-7 V
Future plans
- Extensive tests in the laboratory of the SiPM prototypes - Tests under magnetic field
- Equipping a few bars with different geometry read by SiPM - Test in laboratory with radiation sources
- Test in BTF compared with a 'standard' bar
- Step by step simulation to identify the sources of errors in time measurement
- Mechanical studies on the integration of TC in MEG2