Speaker
Description
A Cosmic Muon Veto detector (CMVD) is being built at TIFR for the feasibility study of shallow depth Neutrino experiments. In this experiment, a Resistive Plate Chamber (RPC) stack is the primary muon detector and its performance is vital for the success of the CMVD results.
Since 2008, a 12 layered 1 m x 1 m Cosmic Muon tracker, based on Resistive Plate Chamber (RPC) has been operational at TIFR. An in-house developed Data Acquisition (DAQ) chain has been configured to collect data using a VME backend. The stability of the long-term operation was hampered due to sudden pick-up of electronic noise in the stack and instability of the front-end amplifiers. A permanent solution was needed to improve the data quality with new age technology. One way is to design and mount amplifier cum discriminator boards as close as possible to the detector and transmit the differential logic signals to the digital front-end. Upgradation was also needed to improve the power consumption of the electronics. A compact 8-in-1 NINO amplifier-cum-discriminator boards and adaptor boards have been specially designed and developed for this purpose.
All HMC based front-end amplifier boards and analog front-end boards have been replaced with new front-end electronics. Performance of each RPC layer has been thoroughly tested after the installation of the NINO amplifier boards along with the adaptor boards before inserting it in the stack. A scheme of modified DAQ system, integration, and RPC performance in terms of efficiency and noise rate will be discussed in the presentation.
| Position | Scientific Officer |
|---|---|
| Affiliation | Tata Institute of Fundamental Research, Mumbai |
| Country | India |