A Silicon UCN Detector With Large Area and With Analysis of UCN Polarization.
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.
St. Petersburg Nuclear Physics Institute, Gatchina, Russia.
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M
Lasakov
St. Petersburg Nuclear Physics Institute, Gatchina, Russia.
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Serebrov
St. Petersburg Nuclear Physics Institute, Gatchina, Russia.
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Khusainov
St. Petersburg Nuclear Physics Institute, Gatchina, Russia.
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Pustovoit
St. Petersburg Nuclear Physics Institute, Gatchina, Russia.
Yu
Y
Borisov
St. Petersburg Nuclear Physics Institute, Gatchina, Russia.
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Fomin
Institut Max von Laue - Paul Langevin, Grenoble, France.
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P
Geltenbort
Ioffe Physical Technical Institute, St. Petersburg, Russia.
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O
Kon'kov
St. Petersburg Nuclear Physics Institute, Gatchina, Russia.
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I
Kotina
St. Petersburg Nuclear Physics Institute, Gatchina, Russia.
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Shablii
St. Petersburg Nuclear Physics Institute, Gatchina, Russia.
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V
Solovei
St. Petersburg Nuclear Physics Institute, Gatchina, Russia.
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Vasiliev
ultracold neutrons