An alpha particle detector for a portable neutron generator for the Nuclear Materials Identification System (NMIS)

被引：34

作者：

Hausladen, PA

Neal, JS

Mihalczo, I

机构：

[1] Oak Ridge Natl Lab, Nucl Sci & Technol Div, Oak Ridge, TN 37831 USA

[2] Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2005年 / 241卷 / 1-4期

关键词：

associated-particle technique; zinc oxide;

D O I：

10.1016/j.nimb.2005.07.138

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A recoil alpha particle detector has been developed for use in a portable neutron generator. The associated particle sealed tube neutron generator (APSTNG) will be used as an interrogation source for the Nuclear Materials Identification System (NMIS). With the coincident emission of 14.1 MeV neutrons and 3.5 MeV alpha particles produced by the D-T reaction, alpha detection determines the time and direction of the neutrons of interest for subsequent use as an active nuclear materials interrogation source. The alpha particle detector uses a ZnO(Ga) scintillator coating applied to a fiber optic face plate. Gallium-doped zinc oxide is a fast (< 1 ns), inorganic scintillator with a high melting point (1975 degrees C). One detector has been installed in an APSTNG and is currently being tested. Initial results include a measured efficiency for 3.5 MeV alphas of 90%. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：835 / 838

页数：4

共 3 条

[1] Evaluation of ZnO(Ga) coatings as alpha particle transducers within a neutron generator [J].

Cooper, JC ;

Koltick, DS ;

Mihalczo, JT ;

Neal, JS .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 505 (1-2) :498-501

[2] Physical description of nuclear materials identification system (NMIS) signatures [J].

Mihalczo, JT ;

Mullens, JA ;

Mattingly, JK ;

Valentine, TE .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2000, 450 (2-3) :531-555

[3] NMIS plus gamma spectroscopy for attributes of HEU, PU and HE detection [J].

Mihalczo, JT ;

Mattingly, JK ;

Neal, JS ;

Mullens, JA .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2004, 213 :378-384

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