Monte-carlo simulation of the prompt gamma neutron activation analysis system with a femtosecond laser

Hyunha Shim; Byungsik Hong; Kyong Sei Lee; Sungman Lee; Hyungki Cha

doi:10.3938/jkps.61.702

Monte-carlo simulation of the prompt gamma neutron activation analysis system with a femtosecond laser

Hyunha Shim, Byungsik Hong, Kyong Sei Lee, Sungman Lee, Hyungki Cha

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The prompt gamma neutron activation analysis (PGNAA) system is a useful tool to detect the concentrations of the various composite elements of a sample by measuring the prompt gammas that are activated by neutrons. The composition in terms of the constituent elements is essential information for the identification of the material species of any unknown object. A PGNAA system initiated by a high-power laser has been designed and optimized by using a Monte-Carlo simulation. In order to improve the signal-to-background ratio, we designed an improved neutron-shielding structure and imposed a proper time window in the analysis. In particular, the yield ratio of nitrogen to carbon in a TNT sample was investigated in detail. These simulation results demonstrate that the gamma rays from an explosive sample under a vast level of background can indeed be identified.

Original language	English
Pages (from-to)	702-709
Number of pages	8
Journal	Journal of the Korean Physical Society
Volume	61
Issue number	5
DOIs	https://doi.org/10.3938/jkps.61.702
Publication status	Published - 2012

Bibliographical note

Funding Information:
This work was supported by the Ministry of Science and Technology, Republic of Korea (Grant No. 20110002319).

Keywords

GEANT4
High-power laser
Monte-Carlo simulation
Neutron beam
Prompt gamma-ray

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.3938/jkps.61.702

Cite this

@article{5605a0d060294ded9352a154b1c4606e,

title = "Monte-carlo simulation of the prompt gamma neutron activation analysis system with a femtosecond laser",

abstract = "The prompt gamma neutron activation analysis (PGNAA) system is a useful tool to detect the concentrations of the various composite elements of a sample by measuring the prompt gammas that are activated by neutrons. The composition in terms of the constituent elements is essential information for the identification of the material species of any unknown object. A PGNAA system initiated by a high-power laser has been designed and optimized by using a Monte-Carlo simulation. In order to improve the signal-to-background ratio, we designed an improved neutron-shielding structure and imposed a proper time window in the analysis. In particular, the yield ratio of nitrogen to carbon in a TNT sample was investigated in detail. These simulation results demonstrate that the gamma rays from an explosive sample under a vast level of background can indeed be identified.",

keywords = "GEANT4, High-power laser, Monte-Carlo simulation, Neutron beam, Prompt gamma-ray",

author = "Hyunha Shim and Byungsik Hong and Lee, {Kyong Sei} and Sungman Lee and Hyungki Cha",

note = "Funding Information: This work was supported by the Ministry of Science and Technology, Republic of Korea (Grant No. 20110002319).",

year = "2012",

doi = "10.3938/jkps.61.702",

language = "English",

volume = "61",

pages = "702--709",

journal = "Journal of the Korean Physical Society",

issn = "0374-4884",

publisher = "Korean Physical Society",

number = "5",

}

TY - JOUR

T1 - Monte-carlo simulation of the prompt gamma neutron activation analysis system with a femtosecond laser

AU - Shim, Hyunha

AU - Hong, Byungsik

AU - Lee, Kyong Sei

AU - Lee, Sungman

AU - Cha, Hyungki

N1 - Funding Information: This work was supported by the Ministry of Science and Technology, Republic of Korea (Grant No. 20110002319).

PY - 2012

Y1 - 2012

N2 - The prompt gamma neutron activation analysis (PGNAA) system is a useful tool to detect the concentrations of the various composite elements of a sample by measuring the prompt gammas that are activated by neutrons. The composition in terms of the constituent elements is essential information for the identification of the material species of any unknown object. A PGNAA system initiated by a high-power laser has been designed and optimized by using a Monte-Carlo simulation. In order to improve the signal-to-background ratio, we designed an improved neutron-shielding structure and imposed a proper time window in the analysis. In particular, the yield ratio of nitrogen to carbon in a TNT sample was investigated in detail. These simulation results demonstrate that the gamma rays from an explosive sample under a vast level of background can indeed be identified.

AB - The prompt gamma neutron activation analysis (PGNAA) system is a useful tool to detect the concentrations of the various composite elements of a sample by measuring the prompt gammas that are activated by neutrons. The composition in terms of the constituent elements is essential information for the identification of the material species of any unknown object. A PGNAA system initiated by a high-power laser has been designed and optimized by using a Monte-Carlo simulation. In order to improve the signal-to-background ratio, we designed an improved neutron-shielding structure and imposed a proper time window in the analysis. In particular, the yield ratio of nitrogen to carbon in a TNT sample was investigated in detail. These simulation results demonstrate that the gamma rays from an explosive sample under a vast level of background can indeed be identified.

KW - GEANT4

KW - High-power laser

KW - Monte-Carlo simulation

KW - Neutron beam

KW - Prompt gamma-ray

UR - http://www.scopus.com/inward/record.url?scp=84866354196&partnerID=8YFLogxK

U2 - 10.3938/jkps.61.702

DO - 10.3938/jkps.61.702

M3 - Article

AN - SCOPUS:84866354196

SN - 0374-4884

VL - 61

SP - 702

EP - 709

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 5

ER -

Monte-carlo simulation of the prompt gamma neutron activation analysis system with a femtosecond laser

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this