Scintillation of Ar/CF$_4$ mixtures: glass-THGEM characterization with 1% CF$_4$ at 1-1.5 bar
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arXiv
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| Autores principales: | , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Materias: | |
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| _version_ | 1866913304104927232 |
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| author | Amedo, P. Hafeji, R. Roberts, A. Lowe, A. Ravinthiran, S. Leardini, S. Majumdar, K. Mavrokoridis, K. González-Díaz, D. |
| author_facet | Amedo, P. Hafeji, R. Roberts, A. Lowe, A. Ravinthiran, S. Leardini, S. Majumdar, K. Mavrokoridis, K. González-Díaz, D. |
| contents | Argon gas doped with 1% wavelength-shifter (CF$_4$) has been employed in an optical time projection chamber (OTPC) to image cosmic radiation. We present results obtained during the system commissioning, performed with two stacked glass-THGEMs and an EMCCD camera at 1 bar. Preliminary estimates indicate that the combined optical gain was of the order of 10$^6$ (ph/e), producing sharp and high-contrast raw images without resorting to any filtering or post-processing. A first assessment of the impact of pressurization showed no change in the attainable gains when operating at 1.5 bar |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_07503 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Scintillation of Ar/CF$_4$ mixtures: glass-THGEM characterization with 1% CF$_4$ at 1-1.5 bar Amedo, P. Hafeji, R. Roberts, A. Lowe, A. Ravinthiran, S. Leardini, S. Majumdar, K. Mavrokoridis, K. González-Díaz, D. Instrumentation and Detectors Argon gas doped with 1% wavelength-shifter (CF$_4$) has been employed in an optical time projection chamber (OTPC) to image cosmic radiation. We present results obtained during the system commissioning, performed with two stacked glass-THGEMs and an EMCCD camera at 1 bar. Preliminary estimates indicate that the combined optical gain was of the order of 10$^6$ (ph/e), producing sharp and high-contrast raw images without resorting to any filtering or post-processing. A first assessment of the impact of pressurization showed no change in the attainable gains when operating at 1.5 bar |
| title | Scintillation of Ar/CF$_4$ mixtures: glass-THGEM characterization with 1% CF$_4$ at 1-1.5 bar |
| topic | Instrumentation and Detectors |
| url | https://arxiv.org/abs/2312.07503 |