/ Instrumentation

New type of drift tubes for gas-discharge detectors operating in vacuum: Production technology and quality control

Azorskii, N.I. (Dubna, JINR) ; Gusakov, Yu.V. (Dubna, JINR) ; Elsha, V.V. (Dubna, JINR) ; Enik, T.L. (Dubna, JINR) ; Ershov, Yu.V. (Dubna, JINR) ; Kekelidze, V.D. (Dubna, JINR) ; Kislov, E.M. (Dubna, JINR) ; Kolesnikov, A.O. (Dubna, JINR) ; Madigozhin, D.T. (Dubna, JINR) ; Movchan, S.A. (Dubna, JINR) ; Polenkevich, I.A. (Dubna, JINR) ; Potrebenikov, Yu.K. (Dubna, JINR) ; Samsonov, V.A. (Dubna, JINR) ; Shkarovskiy, S.N. (Dubna, JINR) ; Sotnikov, A.N. (Dubna, JINR) ; Volkov, A.D. (Dubna, JINR) ; Zinchenko, A.I. (Dubna, JINR)

Published in: Phys.Part.Nucl.Lett.
Year: 2017
Vol.: 14    Num./Issue: 1
Page No: 144-149
Pages: 6
Year: 2017-02-19 published

Abstract: A device for fabricating thin-wall (straw) drift tubes using polyethylene terephthalate film 36 μm thick by ultrasonic welding is described together with the technique for controlling their quality. The joint width amounts to 0.4–1.0 mm. The joint breaking strength is 31.9 kg/mm$^{2}$. The argon leakage from a tube of volume 188.6 cm$^{3}$ under a pressure gradient of 1.0 atm does not exceed 0.3 × 10$^{–3}$ cm$^{3}$/min, which is mainly related to the absence of metallization in the joint vicinity. The high strength, the low tensile creep due to the absence of glued layers, the small value of gas leakage makes the new tubes capable of reliable and long-term operation in vacuum, which is confirmed by the operation of 7168 straw tubes for two years in the NA62 experiment.

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Total numbers of views: 89
Numbers of unique views: 37
DOI: 10.1134/S1547477117010071
 Record created 2017-03-02, last modified 2017-03-02

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