Ultra-high vacuum in superconducting accelerator rings

Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1134/S1547477116070098

Аннотация: Achieving the ultra-high vacuum (UHV) in the collider and booster of the NICA project is one of the main challenges when creating this device. It determines the need for a serious approach to this issue and conducting research in this direction. First, it is necessary to understand the effect of the various components of the vacuum systems on the degree of vacuum. It is also necessary to carry out studies of pumping devices for producing the required vacuum (10–9 Pa) in the beam chamber and choose the most optimal pumping scheme. At the same time, it is necessary to figure out how various operations are carried out with the vacuum chamber: preparation of vacuum surfaces, letting in the atmosphere, and warming the chamber after closing the influence on the degree of vacuum and the composition of the residual gas. The temperature may vary from room temperature to liquid helium temperature due to the difficulty of keeping the beam-chamber walls at a constant temperature, including the inner components. This complicates the processes taking place within it. Additional complexity arises due the heating of the chamber walls by various processes during the operation of the accelerator (for example, cycling the magnetic field).

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Издание

Журнал: Physics of Particles and Nuclei Letters

Выпуск журнала: Т.13, 7

Номера страниц: 937-941

ISSN журнала: 15474771

Место издания: Дубна

Издатель: Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд)

Авторы

  • Bazanov A.M. (Joint Institute for Nuclear Research)
  • Butenko A.V. (Joint Institute for Nuclear Research)
  • Galimov A.R. (Joint Institute for Nuclear Research)
  • Lugovnin A.K. (Joint Institute for Nuclear Research)
  • Smirnov A.V. (Joint Institute for Nuclear Research)

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