Open AccessA silicon UCN detector with large area and with analysis of UCN polarization
Author(s) -
M. S. Lasakov,
A. П. Серебров,
A.Kh. Khusainov,
A.K. Pustovoit,
Yu. V. Borisov,
А. К. Фомин,
P. Geltenbort,
O. I. Kon’kov,
I. M. Kotina,
A.I. Shablii,
В. А. Соловей,
A. A. Vasiliev
Publication year - 2005
Publication title -
journal of research of the national institute of standards and technology
Language(s) - English
Resource type - Journals
eISSN - 2165-7254
pISSN - 1044-677X
DOI - 10.6028/jres.110.041
Subject(s) - detector , physics , spectrometer , silicon , polarization (electrochemistry) , dipole , ultracold neutrons , optics , nuclear physics , neutron , optoelectronics , chemistry , quantum mechanics
A silicon ultracold neutron (UCN) detector with an area of 45 cm(2) and with a (6)LiF converter is developed at St. Petersburg Nuclear Physics Institute (PNPI). The spectral efficiency of the silicon UCN detector was measured by means of a gravitational spectrometer at Institut Max von Laue - Paul Langevin (ILL). The sandwich-type detector from two silicon plates with a (6)LiF converter placed between them was also studied. Using this type of technology the UCN detector with analysis of polarization was developed and tested. The analyzing power of this detector assembly reaches up 75 % for the main part of UCN spectrum. This UCN detector with analysis of UCN polarization can be used in the new electric dipole moment (EDM) spectrometer.
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