Lexan coating to eliminate the UV sensitivity of soft x-ray proportional counters with a polypropylene window
- 1 June 1979
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 50 (6) , 727-729
- https://doi.org/10.1063/1.1135908
Abstract
Lexan coatings on polypropylene windows can eliminate the UV sensitivity of soft x-ray proportional counters. A method is described for coating thin polypropylene films by dipping into and withdrawing from a volatile solution containing Lexan. The x-ray absorption of a typical Lexan coating was only 7% at 44 A which is small compared to that of 2 microm of polypropylene. The Lexan coatings are stable against vacuum cycling in an environment of UV irradiation. As an external, far-UV filter up to wavelengths of 2400 A, Lexan-coated polypropylene is an interesting alternative to metallic films, particularly when large area, high x-ray transmission, and strength are important.Keywords
This publication has 3 references indexed in Scilit:
- Technique for producing ultrathin polypropylene filmsReview of Scientific Instruments, 1977
- Thin films for x−ray astronomyReview of Scientific Instruments, 1975
- Method of Stretching Polypropylene for Use as Soft X-Ray Detector WindowsReview of Scientific Instruments, 1968