Электронный каталог

Статья

Ilyin, D.S.
Characterization of a Transmission Thermal Neutron Monitor with an Ultra-Thin Boron Carbide Converter at the IBR-2 Pulsed Reactor / D.S.Ilyin, A.G.Kolesnikov, V.V.Sadilov, [a.o.]. – Text : electronic // Nuclear Instruments & Methods in Physics Research A. – 2026. – Vol. 1091. – P. 171755. – URL: https://doi.org/10.1016/j.nima.2026.171755. – Bibliogr.: 13.

We report the performance characterization of a transmission thermal neutron monitor equipped with a boron carbide (B&sub(4)C) converter, conducted at the REFLEX reflectometer of the IBR-2 pulsed reactor (JINR, Dubna). The time-of-flight, counting, and amplitude characteristics were measured for both reference (1500 nm) and test (20–30 nm) converters. This study extends an ongoing series of tests on a monitor developed for the SEM spin-echo spectrometer at the PIK reactor (NRC KI — PNPI, Gatchina). The monitor with an ultra-thin converter demonstrated a detection efficiency of ∼0.06% at *l = 1.4 Å while maintaining beam transmission above 99%



ОИЯИ = ОИЯИ (JINR)2026