Speaker
Description
A 256-pixel imaging camera for a 4-meter class Imaging Atmospheric Cherenkov Telescope (IACT) is being developed in house by TIFR. The camera uses a 4 x 4 array of SiPMs as photodetector for each pixel. The pixel signals are pre-conditioned in the front-end electronics modules and fed to back-end modules. The front-end electronics comprises the modules for pre-amplification and biasing of pixel sensors. The back-end electronics of camera continuously samples the pre-amplified pixel signal @ 1 GSPS using a switched capacitor array of 1024 ns sampling depth, and records the pulse profile after receiving a valid final trigger signal. The back-end electronics also handle the tasks such as generating pre-triggers & a final trigger to digitize the pixel signals, data concentration, internal calibration of the hardware, recording the event and monitoring data packets to PC in control room etc. Both front-end and back-end modules of the camera follow a modular design concept. The camera back-end has three type of modules viz., 16 Cluster Digitizer Modules (CDMs), 1 Data Concentrator Module (DCM) and 1 Control & Trigger Module (CTM). All the back-end modules are connected to each other using a backplane PCB and accommodated in a customized VME crate. The camera operation is managed with the help of a stack of firmware and software programs developed indigenously. The design, development and current status of the camera will be presented in this talk.
| Session | Future Experiments and Detector Development |
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