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The ionization yield in a methane-filled spherical proportional counter

Fuente: arXiv

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Autori principali:	Arora, M. M., Balogh, L., Beaufort, C., Brossard, A., Chapellier, M., Clarke, J., Corcoran, E. C., Coquillat, J. -M., Dastgheibi-Fard, A., Deng, Y., Durnford, D., Garrah, C., Gerbier, G., Giomataris, I., Giroux, G., Gorel, P., Gros, M., Gros, P., Guillaudin, O., Hoppe, E. W., Katsioulas, I., Kelly, F., Knights, P., Lautridou, P., Makowski, A., Manthos, I., Martin, R. D., Matthews, J., McCallum, H. M., Meadows, H., Millins, L., Muraz, J. -F., Neep, T., Nikolopoulos, K., Panchal, N., Piro, M. -C., Rowe, N., Santos, D., Savvidis, G., Savvidis, I., Spathara, D., Fernandez, F. Vazquez de Sola, Ward, R.
Natura:	Preprint
Pubblicazione:	2024
Soggetti:	Instrumentation and Detectors High Energy Physics - Experiment
Accesso online:	Acceder al recurso
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author	Arora, M. M. Balogh, L. Beaufort, C. Brossard, A. Chapellier, M. Clarke, J. Corcoran, E. C. Coquillat, J. -M. Dastgheibi-Fard, A. Deng, Y. Durnford, D. Garrah, C. Gerbier, G. Giomataris, I. Giroux, G. Gorel, P. Gros, M. Gros, P. Guillaudin, O. Hoppe, E. W. Katsioulas, I. Kelly, F. Knights, P. Lautridou, P. Makowski, A. Manthos, I. Martin, R. D. Matthews, J. McCallum, H. M. Meadows, H. Millins, L. Muraz, J. -F. Neep, T. Nikolopoulos, K. Panchal, N. Piro, M. -C. Rowe, N. Santos, D. Savvidis, G. Savvidis, I. Spathara, D. Fernandez, F. Vazquez de Sola Ward, R.
author_facet	Arora, M. M. Balogh, L. Beaufort, C. Brossard, A. Chapellier, M. Clarke, J. Corcoran, E. C. Coquillat, J. -M. Dastgheibi-Fard, A. Deng, Y. Durnford, D. Garrah, C. Gerbier, G. Giomataris, I. Giroux, G. Gorel, P. Gros, M. Gros, P. Guillaudin, O. Hoppe, E. W. Katsioulas, I. Kelly, F. Knights, P. Lautridou, P. Makowski, A. Manthos, I. Martin, R. D. Matthews, J. McCallum, H. M. Meadows, H. Millins, L. Muraz, J. -F. Neep, T. Nikolopoulos, K. Panchal, N. Piro, M. -C. Rowe, N. Santos, D. Savvidis, G. Savvidis, I. Spathara, D. Fernandez, F. Vazquez de Sola Ward, R.
contents	Spherical proportional counters (SPCs) are gaseous particle detectors sensitive to single ionization electrons in their target media, with large detector volumes and low background rates. The $\mbox{NEWS-G}$ collaboration employs this technology to search for low-mass dark matter, having previously performed searches with detectors at the Laboratoire Souterrain de Modane (LSM), including a recent campaign with a 135 cm diameter SPC filled with methane. While in situ calibrations of the detector response were carried out at the LSM, measurements of the mean ionization yield and fluctuations of methane gas in SPCs were performed using a 30 cm diameter detector. The results of multiple measurements taken at different operating voltages are presented. A UV laser system was used to measure the mean gas gain of the SPC, along with $\mathrm{^{37}Ar}$ and aluminum-fluorescence calibration sources. These measurements will inform the energy response model of future operating detectors.
format	Preprint
id	arxiv_https___arxiv_org_abs_2410_16350
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	The ionization yield in a methane-filled spherical proportional counter Arora, M. M. Balogh, L. Beaufort, C. Brossard, A. Chapellier, M. Clarke, J. Corcoran, E. C. Coquillat, J. -M. Dastgheibi-Fard, A. Deng, Y. Durnford, D. Garrah, C. Gerbier, G. Giomataris, I. Giroux, G. Gorel, P. Gros, M. Gros, P. Guillaudin, O. Hoppe, E. W. Katsioulas, I. Kelly, F. Knights, P. Lautridou, P. Makowski, A. Manthos, I. Martin, R. D. Matthews, J. McCallum, H. M. Meadows, H. Millins, L. Muraz, J. -F. Neep, T. Nikolopoulos, K. Panchal, N. Piro, M. -C. Rowe, N. Santos, D. Savvidis, G. Savvidis, I. Spathara, D. Fernandez, F. Vazquez de Sola Ward, R. Instrumentation and Detectors High Energy Physics - Experiment Spherical proportional counters (SPCs) are gaseous particle detectors sensitive to single ionization electrons in their target media, with large detector volumes and low background rates. The $\mbox{NEWS-G}$ collaboration employs this technology to search for low-mass dark matter, having previously performed searches with detectors at the Laboratoire Souterrain de Modane (LSM), including a recent campaign with a 135 cm diameter SPC filled with methane. While in situ calibrations of the detector response were carried out at the LSM, measurements of the mean ionization yield and fluctuations of methane gas in SPCs were performed using a 30 cm diameter detector. The results of multiple measurements taken at different operating voltages are presented. A UV laser system was used to measure the mean gas gain of the SPC, along with $\mathrm{^{37}Ar}$ and aluminum-fluorescence calibration sources. These measurements will inform the energy response model of future operating detectors.
title	The ionization yield in a methane-filled spherical proportional counter
topic	Instrumentation and Detectors High Energy Physics - Experiment
url	https://arxiv.org/abs/2410.16350