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[en] Wall shift limits the actual accuracy of the hydrogen maser to 10-12. After a review of the perturbation of the hydrogen atoms upon collision on the surface of teflon coated bulb, a new approach is proposed in which a teflon cylinder replaces the classical storage bulb. In this case a more reproducible wall shift is expected. (author)
Journal
Studii si Cercetari de Fizica; ISSN 0039-3940; 
; v. 32(7); p. 649-659
; v. 32(7); p. 649-659
No abstract available
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195; ; (no.4); p. 911-912
; (no.4); p. 911-912
No abstract available
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195; ; (no.4); p. 912
; (no.4); p. 912
No abstract available
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195; ; (no.4); p. 898
; (no.4); p. 898
[en] A new method of measuring the wall contribution of an ionisation chamber is described. The special equipment required is simple and consists of a hollow shell of approximately water-equivalent material and simple small lead shields. The inner dimensions of the shell are large compared with the ionisation chamber. The shell is thick enough to absorb all the contamination electrons. The principle of the method is described and the results of measurements on an ionisation chamber are given. (author)
Journal
No abstract available
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195; ; (no.4); p. 897-898
; (no.4); p. 897-898
[en] The basic results of plasma-wall interaction research on T-10 tokamak are briefly surveyed. (orig.)
Journal
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