Speaker
Jasu Haerkoenen
(Helsinki Institute of Physics HIP)
Description
The CERN RD39 Collaboration has constructed Transient Current Technique
(TCT) measurement setup, which is capable to operate below liquid nitrogen
temperatures. By analyzing the current transients, it is possible to extract
the full depletion voltage, effective trapping time, electric field distribution
and the sign of the space charge in the silicon bulk. Our results show that
the effective space charge and trapping can be manipulated by charge
injection and temperature. This might allow significantly higher Charge
Collection Efficiency (CCE) compared to the detectors operating under
normal reverse bias and at temperatures from 0 ◦ to -30◦ C.
Author
Jasu Haerkoenen
(Helsinki Institute of Physics HIP)
