Development of a DDA+PGA-combined non-destructive active interrogation system in “Active-N″
An integrated neutron interrogation system has been developed for non-destructive assay of highly-radioactive special nuclear materials, to accumulate knowledge of the method through developing and using it. The system combines a differential die-away (DDA) measurement system for the quantification...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573323003297 |
| _version_ | 1797653672004419584 |
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| author | Kazuyoshi Furutaka Akira Ohzu Yosuke Toh |
| author_facet | Kazuyoshi Furutaka Akira Ohzu Yosuke Toh |
| author_sort | Kazuyoshi Furutaka |
| collection | DOAJ |
| description | An integrated neutron interrogation system has been developed for non-destructive assay of highly-radioactive special nuclear materials, to accumulate knowledge of the method through developing and using it. The system combines a differential die-away (DDA) measurement system for the quantification of nuclear materials and a prompt gamma-ray analysis (PGA) system for the detection of neutron poisons which disturb the DDA measurements; a common D-T neutron generator is used. A special care has been taken for the selection of materials to reduce the background gamma rays produced by the interrogation neutrons. A series of measurements were performed to test the basic performance of the system. The results show that the DDA system can quantify plutonium of as small as 20 mg and it is not affected by intense neutron background up to 1.57 × 107 s−1 and gamma ray of 4.43 × 1010 s−1. The gamma-ray background counting rate at the PGA detector was reduced down to 3.9 × 103 s−1 even with the use of the D-T neutron generator. The test measurements show that the PGA system is capable of detecting 0.783 g of boron and about 86.8 g of gadolinium in 30 min. |
| first_indexed | 2024-03-11T16:47:59Z |
| format | Article |
| id | doaj.art-271d3bc9c6b34dc1bc695c809a0f09f6 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-03-11T16:47:59Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-271d3bc9c6b34dc1bc695c809a0f09f62023-10-22T04:48:27ZengElsevierNuclear Engineering and Technology1738-57332023-11-01551140024018Development of a DDA+PGA-combined non-destructive active interrogation system in “Active-N″Kazuyoshi Furutaka0Akira Ohzu1Yosuke Toh2Corresponding author.; Nuclear Science and Engineering Center, Japan Atomic Energy Agency, JapanNuclear Science and Engineering Center, Japan Atomic Energy Agency, JapanNuclear Science and Engineering Center, Japan Atomic Energy Agency, JapanAn integrated neutron interrogation system has been developed for non-destructive assay of highly-radioactive special nuclear materials, to accumulate knowledge of the method through developing and using it. The system combines a differential die-away (DDA) measurement system for the quantification of nuclear materials and a prompt gamma-ray analysis (PGA) system for the detection of neutron poisons which disturb the DDA measurements; a common D-T neutron generator is used. A special care has been taken for the selection of materials to reduce the background gamma rays produced by the interrogation neutrons. A series of measurements were performed to test the basic performance of the system. The results show that the DDA system can quantify plutonium of as small as 20 mg and it is not affected by intense neutron background up to 1.57 × 107 s−1 and gamma ray of 4.43 × 1010 s−1. The gamma-ray background counting rate at the PGA detector was reduced down to 3.9 × 103 s−1 even with the use of the D-T neutron generator. The test measurements show that the PGA system is capable of detecting 0.783 g of boron and about 86.8 g of gadolinium in 30 min.http://www.sciencedirect.com/science/article/pii/S173857332300329714 MeV neutronActive interrogationNon-destructive assayDifferential die-away analysisPrompt gamma-ray analysisHighly-radioactive nuclear materials |
| spellingShingle | Kazuyoshi Furutaka Akira Ohzu Yosuke Toh Development of a DDA+PGA-combined non-destructive active interrogation system in “Active-N″ Nuclear Engineering and Technology 14 MeV neutron Active interrogation Non-destructive assay Differential die-away analysis Prompt gamma-ray analysis Highly-radioactive nuclear materials |
| title | Development of a DDA+PGA-combined non-destructive active interrogation system in “Active-N″ |
| title_full | Development of a DDA+PGA-combined non-destructive active interrogation system in “Active-N″ |
| title_fullStr | Development of a DDA+PGA-combined non-destructive active interrogation system in “Active-N″ |
| title_full_unstemmed | Development of a DDA+PGA-combined non-destructive active interrogation system in “Active-N″ |
| title_short | Development of a DDA+PGA-combined non-destructive active interrogation system in “Active-N″ |
| title_sort | development of a dda pga combined non destructive active interrogation system in active n |
| topic | 14 MeV neutron Active interrogation Non-destructive assay Differential die-away analysis Prompt gamma-ray analysis Highly-radioactive nuclear materials |
| url | http://www.sciencedirect.com/science/article/pii/S1738573323003297 |
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