A rigorous method to determine the saturation current of ionisation chambers in the recombination regime
n this work we apply a rigorous method to obtain the saturation current Isat of a 4?? ionisation chamber under very intense ? radiation from a 192 Ir solid source ranging from 27 GBq (0.75 Ci) to 4.1 TBq (110 Ci). We determine Isat by ?tting experimental results to a ?nite series of powers of 1/V 2...
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| Format: | Online |
| Language: | Portuguese |
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Universidade Estadual de Campinas
2020
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| Online Access: | https://econtents.sbu.unicamp.br/eventos/index.php/phyproceedings/article/view/3295 |
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| author | Ridenti , Marco Antonio |
| author_facet | Ridenti , Marco Antonio |
| author_sort | Ridenti , Marco Antonio |
| collection | Portal de Eventos Científicos da UNICAMP |
| container_reference | Physicae Proceedings; Vol. 1 No. 1 (2010): Proceedings X EJP ; 1-1 |
| description | n this work we apply a rigorous method to obtain the saturation current Isat of a 4?? ionisation chamber under very intense ? radiation from a 192 Ir solid source ranging from 27 GBq (0.75 Ci) to 4.1 TBq (110 Ci). We determine Isat by ?tting experimental results to a ?nite series of powers of 1/V 2 obtained from the perturbative solution of the Thomson problem when space charges are neglected. We show that only few terms of the series expansion are needed to achieve a good ?t. We conclude suggesting that this method should be preferred to traditional ones when inferring Isat from measurements in the recombination region in the case where volume recombination is predominant. |
| first_indexed | 2025-10-08T13:49:26Z |
| format | Online |
| id | ojs-article-3295 |
| institution | Universidade Estadual de Campinas |
| issn | 2236-7535 |
| language | por |
| last_indexed | 2025-10-08T13:49:26Z |
| publishDate | 2020 |
| publisher | Universidade Estadual de Campinas |
| record_format | ojs |
| spelling | ojs-article-32952020-05-15T15:13:20Z A rigorous method to determine the saturation current of ionisation chambers in the recombination regime Ridenti , Marco Antonio Saturation current Isat Fnite series of powers n this work we apply a rigorous method to obtain the saturation current Isat of a 4?? ionisation chamber under very intense ? radiation from a 192 Ir solid source ranging from 27 GBq (0.75 Ci) to 4.1 TBq (110 Ci). We determine Isat by ?tting experimental results to a ?nite series of powers of 1/V 2 obtained from the perturbative solution of the Thomson problem when space charges are neglected. We show that only few terms of the series expansion are needed to achieve a good ?t. We conclude suggesting that this method should be preferred to traditional ones when inferring Isat from measurements in the recombination region in the case where volume recombination is predominant. Universidade Estadual de Campinas 2020-05-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://econtents.sbu.unicamp.br/eventos/index.php/phyproceedings/article/view/3295 Physicae Proceedings; Vol. 1 No. 1 (2010): Proceedings X EJP ; 1-1 Physicae Proceedings; v. 1 n. 1 (2010): Proceedings X EJP ; 1-1 2236-7535 por https://econtents.sbu.unicamp.br/eventos/index.php/phyproceedings/article/view/3295/3222 Copyright (c) 2010 Physicae |
| spellingShingle | Ridenti , Marco Antonio Saturation current Isat Fnite series of powers A rigorous method to determine the saturation current of ionisation chambers in the recombination regime |
| title | A rigorous method to determine the saturation current of ionisation chambers in the recombination regime |
| title_full | A rigorous method to determine the saturation current of ionisation chambers in the recombination regime |
| title_fullStr | A rigorous method to determine the saturation current of ionisation chambers in the recombination regime |
| title_full_unstemmed | A rigorous method to determine the saturation current of ionisation chambers in the recombination regime |
| title_short | A rigorous method to determine the saturation current of ionisation chambers in the recombination regime |
| title_sort | rigorous method to determine the saturation current of ionisation chambers in the recombination regime |
| topic | Saturation current Isat Fnite series of powers |
| url | https://econtents.sbu.unicamp.br/eventos/index.php/phyproceedings/article/view/3295 |
| work_keys_str_mv | AT ridentimarcoantonio arigorousmethodtodeterminethesaturationcurrentofionisationchambersintherecombinationregime AT ridentimarcoantonio rigorousmethodtodeterminethesaturationcurrentofionisationchambersintherecombinationregime |
