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Title: Radon detection in conical diffusion chambers: Monte Carlo calculations and experiment

The operation of radon detection diffusion chambers of truncated conical shape was studied using Monte Carlo calculations. The efficiency was studied for alpha particles generated randomly in the volume of the chamber, and progeny generated randomly on the interior surface, which reach track detectors placed in different positions within the chamber. Incidence angular distributions, incidence energy spectra and path length distributions are calculated. Cases studied include different positions of the detector within the chamber, varying atmospheric pressure, and introducing a cutoff incidence angle and energy.
Authors:
; ;  [1] ;  [2]
  1. Instituto de Física, Universidad Nacional Autónoma de México Circuito de la Investigación Científica, Ciudad Universitaria México, D.F. 04520, México (Mexico)
  2. Departamento de Física, Centro de Investigación y de Estudios Avanzados del IPN Ave. IPN 2508, Col. San Pedro Zacatenco, México 07360, DF, México (Mexico)
Publication Date:
OSTI Identifier:
22488688
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1671; Journal Issue: 1; Conference: 11. international symposium on radiation physics, Ciudad Juarez (Mexico), 4-6 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA PARTICLES; ANGULAR DISTRIBUTION; ATMOSPHERIC PRESSURE; DIFFUSION CHAMBERS; EFFICIENCY; ENERGY SPECTRA; INCIDENCE ANGLE; MONTE CARLO METHOD; OPERATION; PARTICLE TRACKS; PROGENY; RADIATION DETECTION; RADON; RANDOMNESS; SURFACES