Experimental study on the performance of a THGEM detector for X-rays
Publish place: Radiation Physics and Engineering، Vol: 4، Issue: 4
Publish Year: 1402
نوع سند: مقاله ژورنالی
زبان: English
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JR_RPE-4-4_007
تاریخ نمایه سازی: 29 شهریور 1402
Abstract:
By expanding the applications of GEM detectors, a newer pattern of such detectors was introduced in ۲۰۰۴, named THGEM detectors. In this work, a sample of an X-ray detector was designed and constructed using ۲cm×۲cm THGEMs domestically produced with a thickness of ۲۵۰ μm, a hole diameter of ۳۰۰ μm and a pitch of ۵۰۰ μm, for the first time. The triple THGEM detector working in Ar/CO۲ gas mixture was characterized. Influence of gas pressure and gas mixture on gain of the detector was investigated. Results show the detector operated in a stable mode with no discharges. The gain of the detector increased with high voltage across the THGEM electrodes exponentially. This verified the performance of a detector as a proportional counter. Also, the detector’s gain is maximum at Ar/CO۲ (۸۰/۲۰) gas mixture and voltage of ۷۰۰ V applied to each multiplier. The detector is promising for localization applications such as particle physics experiments.
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Authors
Elham Edalatkhah
Radiation Applications Research School, Nuclear Science and Technology Research Institute, ۱۴۱۵۵-۱۳۳۹, Tehran, Iran
Shahab Sheibani
Radiation Applications Research School, Nuclear Science and Technology Research Institute, ۱۴۱۵۵-۱۳۳۹, Tehran, Iran
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