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Development of gaseous chambers based on Micropattern gaseous detectors for tests of a new ASIC within the international collaboration ALICE

Grant number: 13/17405-3
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): February 01, 2014
Effective date (End): October 31, 2016
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Marcelo Gameiro Munhoz
Grantee:Pedro Hugo Ferreira Natal da Luz
Home Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:12/04583-8 - High-energy nuclear physics at RHIC and LHC, AP.TEM

Abstract

ALICE is one of the four major experiments installed in the Large Hadron Collider (LHC), at the European Center for Nuclear Research (CERN). An update plan has recently been approved, where several improvements in resolution and tracking efficiency in heavy ion collisions, despite an improvement of the event production rate to around 50kHz, are foreseen. This proposal aims to an involvement in the updates for the Time Projection Chamber (TPC) and for the Muon Spectrometer. Currently, the TPC in ALICE uses Multiwire Proportional Counters (MWPC) for multiplication of the electrons generated by particles crossing the active region of the detector. This technology has limitations that negatively influence the broad scientific program of the experiment. Therefore, the MWPC will be replaced by Gas Electron Multipliers (GEM). In the Muon Spectrometer, taking into account the considerable increase in the event production rate, a reduction of the readout time of the signals to 20 us is mandatory. All these improvements require an update of all the electronics in these subdetectors. The development of a new ASIC which meets the requirements of the TPC and Muon Spectrometer updates has been proposed to the ALICE collaboration. This document is a proposal for the funding of a post-doctoral grant, aiming the development of GEM-based detectors suited for testing the ASIC under development in realistic working conditions. The developed work will serve as the start of a support infrastructure for the tests of the electronics. The use of other Micropattern Gaseous Detectors with the newly developed electronics is also foreseen, aiming the broadening its application fields, for example, to calorimetry or medical sciences. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BHATTACHARYA, PURBA; MOHANTY, BEDANGADAS; MUKHOPADHYAY, SUPRATIK; MAJUMDAR, NAYANA; DA LUZ, HUGO NATAL. 3D simulation of electron and ion transmission of GEM-based detectors. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SP, v. 870, p. 64-72, OCT 21 2017. Web of Science Citations: 2.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.