| Title | Investigation on the performance of a thick ceramic gas electron multiplier |
| Authors | Hu, Zhimeng Muraro, Andrea Gorini, Giuseppe McCormack, Oisin Cippo, Enrico Perelli Tardocchi, Marco Sun, Zhijia Zhou, Xiaojuan Zhou, Jianrong Xie, Yuguang Chen, Yuanbo Zhang, Hui Fan, Tieshuan Croci, Gabriele |
| Affiliation | Nanjing Univ Aeronaut & Astronaut, Dept Nucl Sci & Technol, Nanjing 211106, Peoples R China Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20126 Milan, Italy CNR, Inst Plasma Sci & Technol, I-20125 Milan, Italy Spallat Neutron Source Sci Ctr, Dongguan 523803, Peoples R China Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China Natl Inst Metrol, Beijing 100029, Peoples R China Peking Univ, Sch Phys, Beijing 100871, Peoples R China Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China |
| Keywords | PHOTON DETECTORS GEM AMPLIFICATION |
| Issue Date | 1-Jul-2022 |
| Publisher | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT |
| Abstract | We report the performance of a THick Gas Electron Multiplier (THGEM) fabricated by drilling holes in a gold-clad ceramic substrate using the standard PCB (Printed Circuit Board) technology and etching rims. The THGEM has a total thickness of 200 mu m with a hole diameter and rim size of 200 mu m and 80 mu m, respectively. In order to carry out a performance study, a detector was assembled by putting the THGEM inside a versatile chamber and irradiating it with a Fe-55 X-ray source (5.9 keV). An Ar/CO2 gas mixture was flushed inside the chamber at a pressure of about 1 atm, with volume ratios varying between 70/30 and 90/10. Pulse height spectra of the detector were recorded by a multichannel analyzer to investigate the gain and energy resolution at different drift and induction electric fields. The variations in the gain and energy resolution were also interpreted using simulations. The gain and resolution data of the THGEM were compared with those of a standard GEM which was measured using the same experimental setup. |
| URI | http://hdl.handle.net/20.500.11897/649605 |
| ISSN | 0168-9002 |
| DOI | 10.1016/j.nima.2022.166824 |
| Indexed | SCI(E) |
| Appears in Collections: | 物理学院 其他实验室 核物理与核技术国家重点实验室 |
