Open AccessMonte–Carlo simulation of wall correction factor of graphite cavity ionisation chamber
Author(s) -
Wang Bo,
Wu Jinjie,
Du Haiyan,
Guo Siming,
Ren Shiwei
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.9078
Subject(s) - nist , graphite , monte carlo method , cavity wall , materials science , ionization , ionization chamber , metrology , atomic physics , physics , computational physics , optics , ion , composite material , computer science , mathematics , statistics , quantum mechanics , natural language processing
The purpose of this article is to discuss the method of determining the wall correction factor of graphite cavity ionisation chamber. The method is the ‘equal effect wall thickness’ simulation and direct calculation of the wall correction factor of the std10cm 3 and std30cm 3 spherical graphite cavity ionisation chamber in the national air‐specific kinetic energy reference group (National Institute of Standards and Technology NIST), respectively, in the NIST10cm 3 and NIST30cm 3 spherical graphite cavity ionisation chamber. The calculated results are in agreement with the values released by NIST in 0.1%. Conclusions of the equivalent wall thickness simulation method and the direct calculation simulation method meet each other's requirements, which provide a new idea for the determination of wall correction factor.