CONSIDERATIONS ON THE TARGET SIZE IN A WALL-LESS NANODOSIMETER.
Journal
Radiation protection dosimetry
ISSN: 1742-3406
Titre abrégé: Radiat Prot Dosimetry
Pays: England
ID NLM: 8109958
Informations de publication
Date de publication:
01 May 2019
01 May 2019
Historique:
received:
13
11
2018
pubmed:
12
12
2018
medline:
5
6
2019
entrez:
12
12
2018
Statut:
ppublish
Résumé
In nanodosimetry, the ionization component of charged particle track structure is characterized by measuring the frequency distribution of ionizations in target volumes that simulate nanometric sites in liquid water. For the Ion Counter nanodosimeter at PTB, the sensitive volume is defined by the electrical field and the extraction aperture. In this paper, a procedure is presented to define a cylindrical effective measurement target based on the second moments of the detection efficiency map. An analytical model of the efficiency map is developed to investigate the dependence of the simulated site size on the nanodosimeter's operating parameters. Within the limits of the simplifying assumptions, the model gives a reasonable approximation of the efficiency map.
Identifiants
pubmed: 30535057
pii: 5238688
doi: 10.1093/rpd/ncy252
doi:
Substances chimiques
Ions
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
182-186Informations de copyright
© The Author(s) 2018. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.