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Journal Articles

User support and promotion for JRR-3

Matsue, Hideaki

Hamon, 31(1), p.3 - 4, 2021/02

no abstracts in English

Journal Articles

Various neutron applications of JRR-3 and establishment of user-friendly facility sharing system

Matsue, Hideaki

Hoshasen (Internet), 45(2), p.77 - 88, 2019/07

JRR-3 operated by Japan Atomic Energy Agency (JAEA) is 20 MW grade research reactor for widely used for various academic research and industrial applications in many fields from utilization of internal irradiation to utilization of neutron beam. Although JRR-3 has not been operated due to respond to the new regulation standard established after the Great East Japan Earthquake of March 11, 2011, JRR-3 will resume operation in October 2020. This article reports neutron utilization such as various kinds of reactor irradiation, prompt gamma-ray analysis, neutron radiography and neutron residual stress analysis, and the efforts of the JRR-3 user 's office aiming for a one - stop office.

Journal Articles

Prompt $$gamma$$-ray measurement facilities at Japan Research Reactor-3 (JRR-3)

Furutaka, Kazuyoshi; Toh, Yosuke; Matsue, Hideaki

IAEA-TECDOC-1743, Annex (CD-ROM), p.29 - 32, 2014/07

This paper briefly describes the present status of the two prompt $$gamma$$-ray measurement facilities, PGA and MPGA, installed on neutron beam lines attached to Japan Research Reactor-3 (JRR-3). The description includes those on the configuration of the beam line as well as the supporting system of the irradiation sample, neutron intensity at the irradiation position, and detectors used for the prompt $$gamma$$-ray measurement, for each of the facilities.

Journal Articles

Mercury and gold concentrations of highly polluted environmental samples determined using prompt $$gamma$$-ray analysis and instrument neutron activation analysis

Osawa, Takahito; Hatsukawa, Yuichi; Appel, P. W. U.*; Matsue, Hideaki

Nuclear Instruments and Methods in Physics Research B, 269(8), p.717 - 720, 2011/04

 Times Cited Count:16 Percentile:75.9(Instruments & Instrumentation)

The authors have established a method of determining mercury and gold in severely polluted environ-mental samples using prompt $$gamma$$-ray analysis (PGA) and instrumental neutron activation analysis (INAA). Since large amounts of mercury are constantly being released into the environment by small-scale gold mining in many developing countries, the mercury concentration in tailings and water has to be determined to mitigate environmental pollution. PGA can determine high mercury concentrations in polluted samples as it has an appropriate level of sensitivity. Moreover, gold concentrations can be determined sequentially by using INAA after PGA. In conclusion, the analytical procedure established in this work using PGA and INAA is the best way to evaluate the degree of pollution and the tailing resource value. This method will significantly contribute to mitigating problems in the global environment.

Journal Articles

Carbon-14 analysis in solidified product of non-metallic solid waste by a combination of alkaline fusion and gaseous CO$$_{2}$$ trapping

Ishimori, Kenichiro; Kameo, Yutaka; Matsue, Hideaki; Oki, Yoshiyuki*; Nakashima, Mikio; Takahashi, Kuniaki

Applied Radiation and Isotopes, 69(2), p.506 - 510, 2011/02

 Times Cited Count:6 Percentile:44.45(Chemistry, Inorganic & Nuclear)

In order to establish a simple and rapid analytical method for $$^{14}$$C in solidified products made from non-metallic low-level radioactive solid wastes by melting treatment, a radiochemical analysis in combination with alkaline fusion as a sample decomposition method was examined. A simulated solidified product containing $$^{14}$$C, which was prepared by using nuclear reaction $$^{14}$$N(n, p)$$^{14}$$C with thermal neutron irradiation, was analyzed by the present method to compare with a conventional radiochemical analysis using oxidizing combustion. The reproducible and quantitative recovery of $$^{14}$$C from the simulated solidified product indicates that the present method is superior and more efficient for $$^{14}$$C analysis in solidified products than the conventional method using oxidizing combustion.

Journal Articles

A Facility for measurements of (n,$$gamma$$) cross-sections of a nucleus in the range 0.008 $$leq$$ $$E_{rm n}$$ $$<$$ 20 MeV

Segawa, Mariko; Toh, Yosuke; Harada, Hideo; Kitatani, Fumito; Koizumi, Mitsuo; Hatsukawa, Yuichi; Fukahori, Tokio; Matsue, Hideaki; Oshima, Masumi; Tanimura, Yoshihiko; et al.

Nuclear Instruments and Methods in Physics Research A, 618(1-3), p.153 - 159, 2010/06

 Times Cited Count:2 Percentile:22.19(Instruments & Instrumentation)

A new measurement system to determine the neutron-capture cross section of a nucleus at 0.008 $$leq$$ $$E_{rm n}$$ $$<$$ 20 MeV has been installed at the 4 MV Pelletron accelerator laboratory at the facility of radiation standards at Japan Atomic Energy Agency. Pulsed neutrons are produced by bombarding a pulsed proton beam on $$^{7}$$Li (or $$^{2}$$H) or a deuteron beam on $$^{3}$$H. The performance of the new system was studied by measuring discrete $$gamma$$ rays from neutron capture by $$^{206}$$Pb and $$^{207}$$Pb to their low-lying states at several resonances at 10 $$leq$$ $$E_{rm n}$$ $$leq$$ 110 keV using neutrons from $$^{7}$$Li(p,n)$$^{7}$$Be. The $$gamma$$ rays were detected with a good signal-to-noise ratio by means of a highly sensitive anti-Compton NaI(Tl) spectrometer combined with a time-of-flight method. The present study demonstrated good sensitivity of the new system to determine the neutron-capture cross section of a nucleus at keV neutron energy.

Journal Articles

Non-destructive profiling by quantum beams

Yamamoto, Hiroyuki; Esaka, Fumitaka; Matsue, Hideaki; Sasase, Masato*

Bunseki, 2009(11), p.612 - 618, 2009/11

Present status and future prospects are discssed on the analysis of profiling by quantum beams.

Journal Articles

Development of three-dimensional prompt $$gamma$$-ray analysis system

Segawa, Mariko; Matsue, Hideaki; Kureta, Masatoshi

Nuclear Instruments and Methods in Physics Research A, 605(1-2), p.54 - 56, 2009/06

 Times Cited Count:2 Percentile:21.09(Instruments & Instrumentation)

We developed a three- dimensional neutron induced prompt $$gamma$$-ray analysis (3D-PGA) system taking $$gamma$$-ray spectrum by anti-Compton Ge-detector. This system is one of the promising ways which enables the nondestructive and isotopic observation for internal structure on samples, since neutron beam strongly penetrates material and picks up information on several elements and isotopes. Here, the 3D imaging algorithms that can be employed in this system include computed tomography method which can re-construct position of elements inside samples, measuring $$gamma$$-ray from neutron capture reaction by several elements on a sample in three different directions with use of a collimated neutron beam. The present system had a position resolution with the order of mm reducing background $$gamma$$-ray caused by several materials used as shields for scattered neutrons on a sample position. Finally, the outline of this system is presented with some performance tests.

Journal Articles

Neutron activation analysis of trace elements in Japanese hormesis cosmetics

Furuta, Etsuko*; Nakahara, Hiromichi*; Hatsukawa, Yuichi; Matsue, Hideaki; Sakane, Hitoshi*

Journal of Radioanalytical and Nuclear Chemistry, 278(3), p.553 - 557, 2008/12

 Times Cited Count:6 Percentile:40.16(Chemistry, Analytical)

In Japan, cosmetics which declared hormesis effect are available through Internet. The existence of a daughter nuclides of Th and U series, however, were observed by measurements of the $$gamma$$ rays with a high purity Ge detector. In this study, in order to clarify the contents of trace elements, the hormesis cosmetics including radiation sources were analyzed using instrumental neutron activation analysis method (INAA), prompt $$gamma$$ activation analysis (PGAA) and neutron activation analysis with multiple $$gamma$$ ray detection (NAAMG). In the conference, we will report the results of analysis data which including heavy metallic and actinide elements. Furthermore, we will evaluate a possibility of uptake of heavy metal elements and radiation sources, and will discuss the influence of them to human body.

Journal Articles

Nondestructive analysis of Chlorine in concrete breakwater using by neutron beam induced prompt $$gamma$$-ray analysis

Matsue, Hideaki; Sakane, Hitoshi*

Konkurito Tekuno, 27(2), p.9 - 12, 2008/02

no abstracts in English

Journal Articles

Role of multiparticle-multihole states in $$^{18,19}$$O in thermal neutron capture of $$^{18}$$O

Nagai, Yasuki*; Segawa, Mariko; Osaki, Toshiro*; Matsue, Hideaki; Muto, Kazuo*

Physical Review C, 76(5), p.051301_1 - 051301_6, 2007/11

 Times Cited Count:9 Percentile:56.54(Physics, Nuclear)

The primary $$E$$1 $$gamma$$-ray transition strength from the thermal neutron capture of $$^{18}$$O to the 3/2$$^{-}$$ state, 18 keV below the neutron threshold of $$^{19}$$O, was found to be about two hundred thousand times stronger than that to the 1/2$$^{-}$$ excited state, 729 keV below the threshold. In addition, the $$E$$1 strength from the 3/2$$^{-}$$ state leading to the 3/2$$^{+}$$ state with three ($$d$$$$_{5/2}$$)$$^{3}$$ neutrons was six times stronger than that to the 5/2$$^{+}$$ ground state with a single ($$d$$$$_{5/2}$$) neutron. These anomalous $$gamma$$-ray decay patterns give the first clear experimental evidence for the predicted property of the 3/2$$^{-}$$ state as mainly having a one-hole-four-particle configuration. Unique features of the $$^{18}$$O ground state with a two-hole-four-particle configuration and of the 3/2$$^{+}$$ state combined with a discrete prompt $$gamma$$-ray spectroscopy following the thermal neutron capture of $$^{18}$$O enabled us to exclusively identify the configuration of the 3/2$$^{-}$$ state.

Journal Articles

Nondestructive elemental analysis using neutron

Matsue, Hideaki; Tanji, Akira; Miyata, Satoru; Yasuda, Ryo; Matsubayashi, Masahito; Nakanishi, Tomoko

Dai-5-Kai Hoshasen Ni Yoru Hihakai Hyoka Shimpojiumu Koen Rombunshu, p.45 - 48, 2005/02

no abstracts in English

Journal Articles

Activity for promotion of industrial applications of neutrons in Ibaraki prefecture, Study group for nondestructive analysis and imaging

Matsubayashi, Masahito; Yasuda, Ryo; Tanji, Akira; Miyata, Satoru; Matsue, Hideaki; Nakanishi, Tomoko

Dai-5-Kai Hoshasen Ni Yoru Hihakai Hyoka Shimpojiumu Koen Rombunshu, p.35 - 36, 2005/02

no abstracts in English

Journal Articles

Nondestructive observation of nuclear fuels and materials by using neutron radiography

Yasuda, Ryo; Matsubayashi, Masahito; Nakata, Masahito; Matsue, Hideaki; Nakanishi, Tomoko

Dai-5-Kai Hoshasen Ni Yoru Hihakai Hyoka Shimpojiumu Koen Rombunshu, p.31 - 34, 2005/02

Neutron radiography is an effectively nondestructive tool for inspection of irradiated nuclear fuels and materials. Neutron CT an neutron imaging plate methods, which are advanced techniques in the neutron radiography, enabled to obtain cross-section images and to evaluate an amount of the element compositions. This paper describes results of those methods using unirradiated fuels and materials and discussed the practicability of those methods to irradiated fuels and materials.

Journal Articles

Multi-element determination in soil and sediment reference materials by neutron-induced prompt $$gamma$$-ray analysis using ${it k}$$$_{0}$$-standardization

Matsue, Hideaki; Yonezawa, Chushiro

Bunseki Kagaku, 53(7), p.749 - 751, 2004/07

 Times Cited Count:0 Percentile:0.01(Chemistry, Analytical)

Multi-element determination in reference materials of soils (JASC401, JASC411) and sediments (NMIJ CRM 7302-a, NMIJ CRM 7303-a), which were prepared at the Japan Society for Analytical Chemistry and the National Institute of Advanced Industrial Science and Technology of the National Metrology Institute of Japan, respectively, has been carried out by neutron-induced prompt $$gamma$$-ray analysis (PGA) using standard addition and ${it k}$$$_{0}$$-standardization methods. Firstly, absolute Ti concentrations in the samples were determined accurately by the standard addition method. Secondly, relative multi-element concentrations were determined by the ${it k}$$$_{0}$$-standardization method. Finally, absolute multi-element concentrations were obtained by normalizing the relative multi-element concentrations with the absolute Ti concentration in the samples. The 15 elements such as H, B, Na, Si, S, Cl, K, Ca, Ti Cr, Mn, Fe, Cd, Sm and Gd were determined by the ${it k}$$$_{0}$$-PGA. Analytical results of these reference materials agreed with the certified or reference values within about 10%.

Journal Articles

The Recommended k$$_{0}$$-factors for neutron-induced prompt $$gamma$$-ray analysis and the prompt $$gamma$$-ray emission probabilities

Matsue, Hideaki; Yonezawa, Chushiro

Journal of Radioanalytical and Nuclear Chemistry, 262(1), p.49 - 55, 2004/07

 Times Cited Count:9 Percentile:52.73(Chemistry, Analytical)

The recommended k$$_{0}$$ factors for 81 $$gamma$$-lines of 24 elements, which are useful for neutron induced prompt $$gamma$$-ray analysis (PGA) and are not influenced by neutron spectrum difference, were obtained from the k$$_{0}$$ factors measured with the cold and thermal guided neutron beams of JRR-3M by statistical calculation. The prompt $$gamma$$-ray emission probabilities were derived from the recommended k$$_{0}$$-factors using atomic weight, isotopic abundance and thermal neutron cross-section of other nuclear constants consisting the k$$_{0}$$ factors, for which one can obtain accurate data. The derived $$gamma$$-ray emission probabilities for the light elements (H to Ca) well agreed within $$pm$$10% with those of the ENSDF, which reflect recent data, which the agreements for heavy elements (Ti to Pb) were $$pm$$40% with those of the ENSDF, which are still composed of old data.

Journal Articles

${it k}$$$_{0}$$ standardization for neutron activation analysis

Yonezawa, Chushiro; Matsue, Hideaki

Bunseki, 2004(2), p.75 - 82, 2004/02

no abstracts in English

Journal Articles

Measurement and evaluation of k$$_{0}$$ factors for PGA at JAERI

Matsue, Hideaki; Yonezawa, Chushiro

Journal of Radioanalytical and Nuclear Chemistry, 257(3), p.565 - 571, 2003/09

 Times Cited Count:7 Percentile:45.84(Chemistry, Analytical)

no abstracts in English

Journal Articles

Non-destructive determination of trace amounts of iodine in biological samples by epithermal neutron activation and Compton suppression $$gamma$$-ray spectrometry

Yonezawa, Chushiro; Matsue, Hideaki; Yukawa, M.*

Journal of Radioanalytical and Nuclear Chemistry, 255(1), p.105 - 109, 2003/01

 Times Cited Count:5 Percentile:36.82(Chemistry, Analytical)

no abstracts in English

Journal Articles

Neutron spectrum correction of k$$_{0}$$-factors for k$$_{0}$$-based neutron-induced prompt $$gamma$$-ray analysis

Matsue, Hideaki; Yonezawa, Chushiro

Journal of Radioanalytical and Nuclear Chemistry, 255(1), p.125 - 129, 2003/01

 Times Cited Count:8 Percentile:49.96(Chemistry, Analytical)

no abstracts in English

62 (Records 1-20 displayed on this page)