Position sensitive detection of neutrons in high radiation background field

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F14%3A00429337" target="_blank" >RIV/61389005:_____/14:00429337 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378297:_____/14:00429337 RIV/68407700:21670/14:00229020

Výsledek na webu

<a href="http://scitation.aip.org/content/aip/journal/rsi/85/1/10.1063/1.4862478" target="_blank" >http://scitation.aip.org/content/aip/journal/rsi/85/1/10.1063/1.4862478</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4862478" target="_blank" >10.1063/1.4862478</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Position sensitive detection of neutrons in high radiation background field

Popis výsledku v původním jazyce

We present the development of a high-resolution position sensitive device for detection of slow neutrons in the environment of extremely high gamma and e(-) radiation background. We make use of a planar silicon pixelated (pixel size: 55 x 55 mu m(2)) spectroscopic Timepix detector adapted for neutron detection utilizing very thin B-10 converter placed onto detector surface. We demonstrate that electromagnetic radiation background can be discriminated from the neutron signal utilizing the fact that eachparticle type produces characteristic ionization tracks in the pixelated detector. Particular tracks can be distinguished by their 2D shape (in the detector plane) and spectroscopic response using single event analysis. A Cd sheet served as thermal neutron stopper as well as intensive source of gamma rays and energetic electrons. Highly efficient discrimination was successful even at very low neutron to electromagnetic background ratio about 10(-4).

Název v anglickém jazyce

Position sensitive detection of neutrons in high radiation background field

Popis výsledku anglicky

We present the development of a high-resolution position sensitive device for detection of slow neutrons in the environment of extremely high gamma and e(-) radiation background. We make use of a planar silicon pixelated (pixel size: 55 x 55 mu m(2)) spectroscopic Timepix detector adapted for neutron detection utilizing very thin B-10 converter placed onto detector surface. We demonstrate that electromagnetic radiation background can be discriminated from the neutron signal utilizing the fact that eachparticle type produces characteristic ionization tracks in the pixelated detector. Particular tracks can be distinguished by their 2D shape (in the detector plane) and spectroscopic response using single event analysis. A Cd sheet served as thermal neutron stopper as well as intensive source of gamma rays and energetic electrons. Highly efficient discrimination was successful even at very low neutron to electromagnetic background ratio about 10(-4).

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Review of Scientific Instruments

ISSN

0034-6748

e-ISSN

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Svazek periodika

85

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

013304

Kód UT WoS článku

000331217300019

EID výsledku v databázi Scopus

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