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Physics of the Solid State

, Volume 52, Issue 5, pp 1034–1039 | Cite as

Project of the ultracold and cold neutron source at the WWR-M reactor with superfluid helium as a moderator

  • A. P. SerebrovEmail author
  • V. A. Mityukhlyaev
  • A. A. Zakharov
  • A. N. Erykalov
  • M. S. Onegin
  • A. K. Fomin
  • V. A. Ilatovskiy
  • S. P. Orlov
  • K. A. Konoplev
  • A. G. Krivshich
  • V. M. Samsonov
  • V. F. Ezhov
  • V. V. Fedorov
  • K. O. Keshishev
  • S. T. Boldarev
  • V. I. Marchenko
Neutron Experimental Techniques, Instrumentation, and Radiation Sources

Abstract

The WWR-M reactor of the Petersburg Nuclear Physics Institute provides a unique opportunity for creating conditions of low radiative heat release (∼4 × 10−3 W/g) at a sufficiently high neutron flux (∼3 × 1012 neutrons/(cm2 s)). This opportunity can be implemented in the reactor thermal column, which represents a 1-m-diameter channel adjacent to the reactor core. This diameter of the channel allows the arrangement of the core gamma shielding made of bismuth (15 cm thick), a graphite premoderator (300 dm3) at a temperature of 20 K, and a converter with superfluid helium (35 dm3) at a temperature of 1.2 K. Calculations show that the heat release in the source (20 W) can be removed by pumping helium vapor, and the density of ultracold neutrons in an experimental trap will be ∼104 neutrons/cm3, which is higher than that of existing sources of ultracold neutrons by two to three orders of magnitude.

Keywords

Cold Neutron Superfluid Helium Petersburg Nuclear Physic Institute Ultracold Neutron Neutron Guide 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • A. P. Serebrov
    • 1
    Email author
  • V. A. Mityukhlyaev
    • 1
  • A. A. Zakharov
    • 1
  • A. N. Erykalov
    • 1
  • M. S. Onegin
    • 1
  • A. K. Fomin
    • 1
  • V. A. Ilatovskiy
    • 1
  • S. P. Orlov
    • 1
  • K. A. Konoplev
    • 1
  • A. G. Krivshich
    • 1
  • V. M. Samsonov
    • 1
  • V. F. Ezhov
    • 1
  • V. V. Fedorov
    • 1
  • K. O. Keshishev
    • 2
  • S. T. Boldarev
    • 2
  • V. I. Marchenko
    • 2
  1. 1.Konstantinov Petersburg Nuclear Physics InstituteRussian Academy of SciencesGatchina, Leningradskaya oblastRussia
  2. 2.Kapitza Institute for Physical ProblemsRussian Academy of SciencesMoscowRussia

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