Simultaneous experimental evaluation of pulse shape and deadtime phenomenon of GM detector

Abstract Analysis of several pulse shape properties generated by a Geiger Mueller (GM) detector and its dependence on applied voltage was performed. The two-source method was utilized to measure deadtime while simultaneously capturing pulse shape parameters on an oscilloscope. A wide range of operat...

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Autores principales:	Bader Almutairi, Syed Alam, Cameron S. Goodwin, Shoaib Usman, Tayfun Akyurek
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6982f514f147428c8cdccd338f843b94
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spelling	oai:doaj.org-article:6982f514f147428c8cdccd338f843b942021-12-02T14:26:54ZSimultaneous experimental evaluation of pulse shape and deadtime phenomenon of GM detector10.1038/s41598-021-81571-32045-2322https://doaj.org/article/6982f514f147428c8cdccd338f843b942021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81571-3https://doaj.org/toc/2045-2322Abstract Analysis of several pulse shape properties generated by a Geiger Mueller (GM) detector and its dependence on applied voltage was performed. The two-source method was utilized to measure deadtime while simultaneously capturing pulse shape parameters on an oscilloscope. A wide range of operating voltages (600–1200 V) beyond the recommended operating voltage of 900 V was investigated using three radioactive sources (204Tl, 137Cs, 22Na). This study investigates the relationship between operating voltage, pulse shape properties, and deadtime of the detector. Based on the data, it is found that deadtime decreases with increasing voltage from 600 to 650 V. At these low voltages (600–650 V), the collection time was long, allowing sufficient time for some recombination to take place. Increasing the voltage in this range decreased the collection time, and hence deadtime decreased. It is also observed that rise and fall time were at their highest at these applied voltages. Increasing the voltage further would result in gas multiplication, where deadtime and pulse width are observed to be increasing. After reaching the maximum point of deadtime (~ 250 µs at ~ 700 V), deadtime started to exponentially decrease until a plateau was reached. In this region, it is observed that detector deadtime and operating voltage show a strong correlation with positive pulse width, rise and fall time, cycle mean, and area. Therefore, this study confirms a correlation between detector deadtime, operating voltage, and pulse shape properties. The results will validate our hypothesis that deadtime phenomena at different operating voltages are phenomenologically different.Bader AlmutairiSyed AlamCameron S. GoodwinShoaib UsmanTayfun AkyurekNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bader Almutairi Syed Alam Cameron S. Goodwin Shoaib Usman Tayfun Akyurek Simultaneous experimental evaluation of pulse shape and deadtime phenomenon of GM detector
description	Abstract Analysis of several pulse shape properties generated by a Geiger Mueller (GM) detector and its dependence on applied voltage was performed. The two-source method was utilized to measure deadtime while simultaneously capturing pulse shape parameters on an oscilloscope. A wide range of operating voltages (600–1200 V) beyond the recommended operating voltage of 900 V was investigated using three radioactive sources (204Tl, 137Cs, 22Na). This study investigates the relationship between operating voltage, pulse shape properties, and deadtime of the detector. Based on the data, it is found that deadtime decreases with increasing voltage from 600 to 650 V. At these low voltages (600–650 V), the collection time was long, allowing sufficient time for some recombination to take place. Increasing the voltage in this range decreased the collection time, and hence deadtime decreased. It is also observed that rise and fall time were at their highest at these applied voltages. Increasing the voltage further would result in gas multiplication, where deadtime and pulse width are observed to be increasing. After reaching the maximum point of deadtime (~ 250 µs at ~ 700 V), deadtime started to exponentially decrease until a plateau was reached. In this region, it is observed that detector deadtime and operating voltage show a strong correlation with positive pulse width, rise and fall time, cycle mean, and area. Therefore, this study confirms a correlation between detector deadtime, operating voltage, and pulse shape properties. The results will validate our hypothesis that deadtime phenomena at different operating voltages are phenomenologically different.
format	article
author	Bader Almutairi Syed Alam Cameron S. Goodwin Shoaib Usman Tayfun Akyurek
author_facet	Bader Almutairi Syed Alam Cameron S. Goodwin Shoaib Usman Tayfun Akyurek
author_sort	Bader Almutairi
title	Simultaneous experimental evaluation of pulse shape and deadtime phenomenon of GM detector
title_short	Simultaneous experimental evaluation of pulse shape and deadtime phenomenon of GM detector
title_full	Simultaneous experimental evaluation of pulse shape and deadtime phenomenon of GM detector
title_fullStr	Simultaneous experimental evaluation of pulse shape and deadtime phenomenon of GM detector
title_full_unstemmed	Simultaneous experimental evaluation of pulse shape and deadtime phenomenon of GM detector
title_sort	simultaneous experimental evaluation of pulse shape and deadtime phenomenon of gm detector
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6982f514f147428c8cdccd338f843b94
work_keys_str_mv	AT baderalmutairi simultaneousexperimentalevaluationofpulseshapeanddeadtimephenomenonofgmdetector AT syedalam simultaneousexperimentalevaluationofpulseshapeanddeadtimephenomenonofgmdetector AT cameronsgoodwin simultaneousexperimentalevaluationofpulseshapeanddeadtimephenomenonofgmdetector AT shoaibusman simultaneousexperimentalevaluationofpulseshapeanddeadtimephenomenonofgmdetector AT tayfunakyurek simultaneousexperimentalevaluationofpulseshapeanddeadtimephenomenonofgmdetector
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Simultaneous experimental evaluation of pulse shape and deadtime phenomenon of GM detector

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