The performance of the INER improved free-air ionization chamber in the comparison of air kerma calibration coefficients for medium-energy X-rays

Autor: Jeng-Hung Lee, Lew H. Kotler, Wen-Song Hwang, Chu-Fang Wang, Jih-Hung Chiu, L Büermann
Rok vydání: 2005
Předmět:
Zdroj: Radiation Measurements. 39:1-10
ISSN: 1350-4487
DOI: 10.1016/j.radmeas.2004.03.033
Popis: This paper describes modifications to an original design, correction factors and uncertainty evaluations for an improved free-air ionization chamber constructed at the Institute of Nuclear Energy Research (INER, Taiwan). In addition, a comparison of secondary standard air kerma calibration coefficients for 100– 250 kV medium-energy X-rays was performed to verify the experimental accuracy and measurement consistency of the improved chamber. The comparison results showed a satisfactory agreement in the measurements which were within the combined expanded uncertainties ( k =2).
Databáze: OpenAIRE