J 2017

Measurement of Neutron Spectra in a Silicon Filtered Neutron Beam Using Stilbene Detectors at the LVR-15 Research Reactor

KOŠŤÁL, Michal, Jaroslav ŠOLTÉS, Ladislav VIERERBL, Zdeněk MATĚJ, František CVACHOVEC et. al.

Základní údaje

Originální název

Measurement of Neutron Spectra in a Silicon Filtered Neutron Beam Using Stilbene Detectors at the LVR-15 Research Reactor

Autoři

KOŠŤÁL, Michal (203 Česká republika), Jaroslav ŠOLTÉS (203 Česká republika), Ladislav VIERERBL (203 Česká republika), Zdeněk MATĚJ (203 Česká republika, garant, domácí), František CVACHOVEC (203 Česká republika), Vojtěch RYPAR (203 Česká republika) a Evžen LOSA (203 Česká republika)

Vydání

Applied Radiation and Isotopes, Amsterdam, Elsevier, 2017, 0969-8043

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10201 Computer sciences, information science, bioinformatics

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 1.123

Kód RIV

RIV/00216224:14330/17:00097124

Organizační jednotka

Fakulta informatiky

UT WoS

000410016200007

Klíčová slova anglicky

LVR-15; Neutron spectrometry; Stilbene; Detector calibration; Si neutron filter; Reactor dosimetry
Změněno: 14. 6. 2022 13:57, RNDr. Pavel Šmerk, Ph.D.

Anotace

V originále

A well-defined neutron spectrum is an essential tool for calibration and tests of spectrometry and dosimetry detectors, and evaluation methods for spectra processing. Many of the nowadays used neutron standards are based on a fission spectrum which has a smooth character. In recent time, at the LVR-15 research reactor in Rez, an alternative approach was tested for the needs of fast neutron spectrometry detector calibration. This process comprises detector tests in a neutron beam, filtered by one meter of single-crystalline silicon, which contains several significant peaks in the fast neutron energy range. Tests in such a kind of field can possibly reveal specific problems in the deconvolution matrix of the detection system, which may stay hidden in fields with a smooth character and can provide a tool for a proper energy calibration. Test with several stilbene scintillator crystals in two different beam configurations supplemented by Monte-Carlo transport calculation have been carried out. The results have shown a high level of agreement between the experimental data and simulation, proving thus the accuracy of the used deconvolution matrix. The chosen approach can, thus, provide a well-defined neutron reference field with a peak character for further tests of spectra evaluation methods and scintillation detector energy calibration.