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Journal
Izvestiya Vysshikh Uchebnykh Zavedenij, Fizika; ISSN 0021-3411; 
; v. 24(5); p. 125
; v. 24(5); p. 125
[en] Distribution of individual inelasticity coefficients are obtained in the energy range of 0.1-5TeV in the inelastic interactions of cosmic radiation hadrons with nuclei (A=10,27,64,207). Dependence of Ksub(γ) upon atomic number of the target nucleus and multiplicity of the charged particles are given
Source
CEA, 75 - Paris (France); International Union of Pure and Applied Physics; 470 p; ISBN 2-7272-0061-7; ; 1981; v. 5 p. 103-106; Commissariat a l'Energie Atomique; Paris, France; 17. International cosmic ray conference; Paris, France; 13 - 25 Jul 1981; Sold by Reidel, Dordrecht, Netherlands
; 1981; v. 5 p. 103-106; Commissariat a l'Energie Atomique; Paris, France; 17. International cosmic ray conference; Paris, France; 13 - 25 Jul 1981; Sold by Reidel, Dordrecht, Netherlands
[en] The design and technology of production of wide-gap chambers with dimensions of 140x150x20 cm for magnetic spark spectrometers are described in detail. All units of the spark chamber are manufactured separately and then are glued together with epoxide resin. Tightness of the chamber is provided by sealing the whole external surface of its foam-plastic walls with a thin layer of epoxide resin. Spark chambers are filled with a mixture containing 95% of He and 5% of Ne. The operating pressure range is from 0.5 to 1.5 mm Hg. Special attention is given to the purity of neutral gases. If gas contamination exceeds the permissible level a clearing system switches on; the latter consists of two reactors: one contains Ca heated to 600 deg C and the other is with zeolites. The operating voltage is 16 kV. All the spark chambers with their power supplies are incased into a housing welded of 4-mm steel to exclude pickups from a high-voltage pulse to its sensitive electronics. The described spark chambers feature the following specifications: the electric field is 4 kV/cm; the track root-mean-square deviation is 0.17 mm; the maximum spark angle with respect to the electrode normal is 45 deg; the efficiency of registration of a great number of tracks for n<=50, where n is the number of tracks, is approximately 1
Journal
Pribory i Tekhnika Ehksperimenta; ISSN 0032-8162; ; (no.4); p. 79-81
; (no.4); p. 79-81
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