Instruments (Nov 2018)

Longitudinal Tension and Mechanical Stability of a Pressurized Straw Tube

  • Levan Glonti,
  • Temur Enik,
  • Vladimir Kekelidze,
  • Alexander Kolesnikov,
  • Dmitry Madigozhin,
  • Natalia Molokanova,
  • Sergey Movchan,
  • Yuri Potrebenikov,
  • Sergey Shkarovskiy

DOI
https://doi.org/10.3390/instruments2040027
Journal volume & issue
Vol. 2, no. 4
p. 27

Abstract

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For the development of charged particle detectors based on straw tubes operating in vacuum, a special measurement technique is required for the evaluation of their mechanical properties. A summary of the known equations that govern straw behavior under internal pressure is provided, and a new experimental method of a strained pressurized straw tube study is presented in this paper. The Poisson’s ratio of the straw wall, which defines the stability conditions of a built-in tube, was measured for the NA62 spectrometer straw, and its minimum pre-tension was estimated.

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