Open AccessAN INVESTIGATION ON THE FILMS USED AS THE WINDOWS OF ULTRA-SOFT X-RAY COUNTERS
Author(s) -
Lin Tien-Hui,
Tian You-Cai,
Cui Bao-Kun
Publication year - 1978
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.27.276
Subject(s) - materials science , coating , electrical conductor , intensity (physics) , x ray , optics , property (philosophy) , soft x rays , composite material , physics , laser , philosophy , epistemology
This paper deals with the properties of films used as entrance window of a gas-flow type ultrasoft X-ray counter. The effects of the base material and conductive coatings of the films on performance characteristics of the counter are investigated. Experimental results show that, among the material under study, Formvar exhibits more satisfactory gas-sealing property and has higher transmissivity for X-rays. In addition, it is found that the conductive coating on the film has a significant effect on the stability of the measured intensity. An interpretation on these effects by taking into acounts of the feature of electron multiplication process in the counter caused by ultra-soft X-rays is proposed.