Speaker
Description
The DarkSide collaboration is developing a new experiment capable of searching for dark matter with unprecedented sensitivity. The detector introduces many innovative technologies, among others the use of underground liquid argon, depleted in 39Ar to reduce the internal background, and the production of about 20 mq light sensitive low background surfaces, instrumented with SiPMs operating at 87 K. This talk will introduce the development in collaboration with FBK with the aim to produce SiPMs operating in cryogenic environment with low intrinsic noise, both primary and correlated (DCR < 80 mcps/mm2 and AP <15%) in high gain configuration (5-7 VoV). Then the talk will describe the technological transfer of the FBK technology to LFoundry, which was selected to mass produce the 200000 SiPMs required by the experiment.
Finally the design of a readout electronics capable to aggregate 25 cm2 of silicon detector with a SNR in excess of 24 and a time jitter of about 3 ns will be discussed.
