A Neutron Spectrometer for Experiments with Radioactive Beams on the ACCULINNA-2 Fragment Separator


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A neutron spectrometer based on stilbene crystals has been developed by the Flerov Laboratory of Nuclear Reactions at the Joint Institute for Nuclear Research (Dubna, Russia). The timing resolution is determined as a function of the signal amplitude (σT = 0.18 ns at an amplitude of 1 MeV in the electron equivalent). The measured energy resolution of the detecting modules for γ rays is σE/E = 4.5% at E = 1 MeV. The quality of the n–γ discrimination is investigated. It is shown that reliable discrimination is possible, beginning with a deposited energy of 100 keV in the electron equivalent, which corresponds to the kinetic energy of recoil protons of ∼700 keV. The neutron spectrometer helps to significantly expand the experimental capabilities and to carry out correlation experiments with radioactive beams on the ACCULINNA-2 fragment separator at a new level of quality.

Sobre autores

A. Bezbakh

Joint Institute for Nuclear Research (JINR)

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980

S. Belogurov

Joint Institute for Nuclear Research (JINR); National Research Nuclear University

Autor responsável pela correspondência
Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980; Moscow, 115409

R. Wolski

Joint Institute for Nuclear Research (JINR); Institute of Nuclear Physics PAN

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980; Krakow, 31342

E. Gazeeva

Joint Institute for Nuclear Research (JINR)

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980

M. Golovkov

Joint Institute for Nuclear Research (JINR)

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980

A. Gorshkov

Joint Institute for Nuclear Research (JINR)

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980

G. Kaminski

Joint Institute for Nuclear Research (JINR); Institute of Nuclear Physics PAN

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980; Krakow, 31342

M. Kozlov

Joint Institute for Nuclear Research (JINR)

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980

S. Krupko

Joint Institute for Nuclear Research (JINR)

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980

I. Muzalevky

Joint Institute for Nuclear Research (JINR); Institute of Physics

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980; Opava, 74601

E. Nikolskii

Joint Institute for Nuclear Research (JINR); National Research Center “Kurchatov Institute”

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980; Moscow, 123182

E. Ovcharenko

Joint Institute for Nuclear Research (JINR)

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980

R. Slepnev

Joint Institute for Nuclear Research (JINR)

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980

G. Ter-Akopian

Joint Institute for Nuclear Research (JINR)

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980

A. Fomichev

Joint Institute for Nuclear Research (JINR)

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980

V. Chudoba

Joint Institute for Nuclear Research (JINR); Institute of Physics

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980; Opava, 74601

P. Sharov

Joint Institute for Nuclear Research (JINR)

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980

V. Schetinin

Joint Institute for Nuclear Research (JINR)

Email: belogurov@jinr.ru
Rússia, Dubna, Moscow oblast, 141980

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