Quality factor of secondary cosmic radiation at flight altitudes

被引：12

作者：

Burda, O. ^{[1
]}

Sato, T. ^{[2
]}

Wissmann, F. ^{[1
]}

机构：

[1] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany

[2] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

来源：

JOURNAL OF RADIOLOGICAL PROTECTION | 2013年 / 33卷 / 02期

关键词：

MATHEMATICAL-MODEL; AVIATION ALTITUDES; AIRCREW EXPOSURE; H-ASTERISK(10); ATMOSPHERE; EQUIVALENT;

D O I：

10.1088/0952-4746/33/2/339

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Dosimetry at aviation altitudes requires instruments that are able to measure the dose contributions of all field components. Tissue-equivalent proportional counters (TEPCs) are well suited for this task. From the measured lineal energy distribution, the absorbed dose and the dose equivalent can be obtained. The ratio of both quantities is named the quality factor, which is a measure of the biological effectiveness of the radiation field. The results of this work show that the mean quality factors obtained by using a TEPC are independent of the altitude, at least at altitudes between flight level (FL) 300 and FL 400, but show a significant dependence on the vertical cutoff rigidity. From a numerical simulation of the radiation field inside an aircraft, the influence of the aircraft structure can be shown.

引用

页码：339 / 348

页数：10

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