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Attenuation of 5.9 keV Photons by Air

 

作者: J. H. McCrary,   L. H. Ziegler,   L. D. Looney,  

 

期刊: Journal of Applied Physics  （AIP Available online 1969）
卷期: Volume 40, issue 7  

页码: 2690-2693

 

ISSN:0021-8979

 

年代: 1969

 

DOI:10.1063/1.1658062

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The narrow beam attenuation coefficient of air was measured at 5.895 keV. An55Fe source of Mn x rays with a CrK&bgr;filter and a collimated low‐energy sodium iodide counter were used. The photon intensity as a function of the source‐detector distance was determined in vacuum and in atmospheric air. The value of the measured coefficient is 24.55±0.25 cm2/g.

 

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