%0 Journal Article
%T AN INVESTIGATION ON THE FILMS USED AS THE WINDOWS OF ULTRA-SOFT X-RAY COUNTERS<br>超软X线计数管入射窗薄膜的研究
%A LIN TIEN-HUI
%A TIAN YOU-CAI
%A CUI BAO-KUN
%A <br>林天辉
%A 田有才
%A 崔保坤
%J 物理学报
%D 1978
%I 
%X 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.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=32CEFE29010E018EE204FE719DBF070F&yid=EA437CDB73D9759D&vid=DB817633AA4F79B9&iid=38B194292C032A66&sid=44A4891E33BFF455&eid=E2B9962CCD971A0D&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0