Gas Electron Multiplier (GEM) Chamber Characteristics Test
This Memorandum of Understanding covers beam time usage at the Meson Test Beam Facility in March 2007 for tests with three Gas Electron Multiplier (GEM) chambers for the International Linear Collider (ILC) Digital Hadron Calorimeter R&D (DHCAL – University of Texas at Arlington, UTA), for ILC tracker R&D (Louisiana Tech University, LTU) and for radiation imaging detector R&D (Changwon National University, CNU). The memorandum is intended solely for the purpose of providing a work allocation for Fermi National Accelerator Laboratory and the participating universities; UTA, L TU and CNU. It reflects an arrangement that is currently satisfactory to the parties involved. It is recognized, however, that changing circumstances of the evolving research program may necessitate revisions. The parties agree to negotiate amendments to this memorandum to reflect such revisions. Gas Electron Multipliers (GEM) have been used in many HEP experiments as tracking detectors and are found to be sensitive to X-rays which allows the use beyond that of HEP. The UTA High Energy group has been working on using GEM as the sensitive gap detector in a DHCAL for the ILC. The physics goals at the ILC put a stringent requirement on detector performance. Especially the precision required for jet mass and positions demands an unprecedented jet energy resolution to hadronic calorimeters. A solution to meet this requirement is using the Particle Flow Algorithm (PFA). In order for PFA to work well, high calorimeter granularity is necessary. Previous studies based on GEANT simulations using GEM DHCAL gave confidence on the performance of GEM in the sensitive gap in a sampling calorimeter and its use as a DHCAL in PFA. The LTU team has been collaborating with UTA in developing GEM foils with 3M Inc. for the use in a tracking detector for the ILC. The CNU team has been collaborating with UTA originally on DHCAL development and is now focusing on using GEM detector as low energy X-ray imaging detectors.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1973936
- Report Number(s):
- FERMILAB-PROPOSAL-0964; oai:inspirehep.net:878633; TRN: US2403413
- Country of Publication:
- United States
- Language:
- English
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