Modélisation d’un détecteur CLYC pour la détection de rayons gamma

Antonio Almeida Albuquerque

Modélisation d’un détecteur CLYC pour la détection de rayons gamma

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Abstract

Cs2LiYCl6 (CLYC) is a new scintillator suitable for dual gamma-neutron detection. The crystal contains 6Li and 35Cl, thus thermal neutrons are detected through 6Li(n,α)t reaction and fast neutrons through 35Cl(n,p)35S reaction. In this work, a Monte-Carlo model of a 1x1 inch crystal was developed and validated with experimental data as part of a research group interested in possible future applications in safeguards and medical radiation protection at SCK-CEN. Measurements confirmed the good resolution of the CLYC with ~5% at 662 keV. MCNP6 was employed to model the measurements performed with the detector. A least square minimization implemented in a ROOT environment was used to calculate the response function (energy calibration and resolution function) of the detector comparing the measured and the simulated responses.

Original language	English
Qualification	Master of Science
Awarding Institution	HE2B - ISIB - Institut Superieur industriel de Bruxelles
Supervisors/Advisors	Borella, Alessandro, SCK CEN Mentor
Publisher	ISIB - Institut Supérieur Industriel de Bruxelles
State	Published - 30 Jun 2016

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Cite this

@mastersthesis{f233618625264c3eb75c93a42d2b7b7f,

title = "Mod{\'e}lisation d{\textquoteright}un d{\'e}tecteur CLYC pour la d{\'e}tection de rayons gamma",

abstract = "Cs2LiYCl6 (CLYC) is a new scintillator suitable for dual gamma-neutron detection. The crystal contains 6Li and 35Cl, thus thermal neutrons are detected through 6Li(n,α)t reaction and fast neutrons through 35Cl(n,p)35S reaction. In this work, a Monte-Carlo model of a 1x1 inch crystal was developed and validated with experimental data as part of a research group interested in possible future applications in safeguards and medical radiation protection at SCK-CEN. Measurements confirmed the good resolution of the CLYC with ~5% at 662 keV. MCNP6 was employed to model the measurements performed with the detector. A least square minimization implemented in a ROOT environment was used to calculate the response function (energy calibration and resolution function) of the detector comparing the measured and the simulated responses.",

keywords = "gamma-neutron detection",

author = "{Almeida Albuquerque}, Antonio",

note = "Score=10",

year = "2016",

month = jun,

day = "30",

language = "English",

publisher = "ISIB - Institut Sup{\'e}rieur Industriel de Bruxelles",

school = "HE2B - ISIB - Institut Superieur industriel de Bruxelles",

}

TY - THES

T1 - Modélisation d’un détecteur CLYC pour la détection de rayons gamma

AU - Almeida Albuquerque, Antonio

N1 - Score=10

PY - 2016/6/30

Y1 - 2016/6/30

N2 - Cs2LiYCl6 (CLYC) is a new scintillator suitable for dual gamma-neutron detection. The crystal contains 6Li and 35Cl, thus thermal neutrons are detected through 6Li(n,α)t reaction and fast neutrons through 35Cl(n,p)35S reaction. In this work, a Monte-Carlo model of a 1x1 inch crystal was developed and validated with experimental data as part of a research group interested in possible future applications in safeguards and medical radiation protection at SCK-CEN. Measurements confirmed the good resolution of the CLYC with ~5% at 662 keV. MCNP6 was employed to model the measurements performed with the detector. A least square minimization implemented in a ROOT environment was used to calculate the response function (energy calibration and resolution function) of the detector comparing the measured and the simulated responses.

AB - Cs2LiYCl6 (CLYC) is a new scintillator suitable for dual gamma-neutron detection. The crystal contains 6Li and 35Cl, thus thermal neutrons are detected through 6Li(n,α)t reaction and fast neutrons through 35Cl(n,p)35S reaction. In this work, a Monte-Carlo model of a 1x1 inch crystal was developed and validated with experimental data as part of a research group interested in possible future applications in safeguards and medical radiation protection at SCK-CEN. Measurements confirmed the good resolution of the CLYC with ~5% at 662 keV. MCNP6 was employed to model the measurements performed with the detector. A least square minimization implemented in a ROOT environment was used to calculate the response function (energy calibration and resolution function) of the detector comparing the measured and the simulated responses.

KW - gamma-neutron detection

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/20085563

M3 - Master's thesis

PB - ISIB - Institut Supérieur Industriel de Bruxelles

ER -