The form of X-ray photoelectron tracks in a capillary gas proportional counter

Author

Sakurai, H. ; Saito, S. ; Masuda, T. ; Gunji, S. ; Noma, M. ; Kanase, G. ; Suzuki, Y.

Author_Institution

Dept. of Phys., Yamagata Univ., Japan

Volume

46

Issue

3

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

333

Lastpage

337

Abstract

We have successfully detected images of tracks of photoelectrons from the 22 keV and 30 keV X-rays of ¹⁰⁹Cd and ²⁴¹Am, utilizing an optical imaging gas detector with a CCD camera. Most of the 30 keV photoelectrons have track lengths greater than 1 mm in xenon gas. The images of the tracks contain clusters of pixels, and the brightest of these clusters, for each track, were investigated in detail. It was found that the average shape of these clusters was oval-like and that the geometrical center differs from the point of maximum energy loss. These data have important implications for X-ray polarimetry

Keywords

X-ray detection; polarimeters; proportional counters; xenon; ¹⁰⁹Cd; ²⁴¹Am; X-ray photoelectron tracks; X-ray polarimetry; Xe; capillary gas proportional counter; geometrical center; maximum energy loss; optical imaging gas detector; Charge coupled devices; Charge-coupled image sensors; Gas detectors; Optical imaging; Pixel; Shape; X-ray detection; X-ray detectors; X-ray imaging; Xenon;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.775539

Filename

775539