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The Energy-resolved neutron imaging system, RADEN

篠原 武尚; 甲斐 哲也; 及川 健一; 中谷 健; 瀬川 麻里子; 廣井 孝介; Su, Y.; 大井 元貴; 原田 正英; 飯倉 寛; et al.

Review of Scientific Instruments, 91(4), p.043302_1 - 043302_20, 2020/04

 被引用回数:1 パーセンタイル:100(Instruments & Instrumentation)

The energy-resolved neutron imaging system, RADEN, has been installed at the pulsed neutron source in the Materials and Life Science Experimental Facility of the Japan Proton Accelerator Research Complex. In addition to conventional neutron radiography and tomography, RADEN, the world's first imaging beam-line at a pulsed neutron source, provides three main options for new, quantitative neutron imaging techniques: Bragg-edge imaging to visualize the spatial distribution of crystallographic information, resonance absorption imaging for elemental composition and temperature information, and polarized neutron imaging for magnetic field information. This paper describes the results of characterization studies of the neutronic performance and installed devices at RADEN and shows the results of several demonstration studies for pulsed neutron imaging.



甲斐 哲也; 篠原 武尚; 松本 吉弘*

検査技術, 25(2), p.1 - 5, 2020/02



Pulsed neutron imaging based crystallographic structure study of a Japanese sword made by Sukemasa in the Muromachi period

及川 健一; 鬼柳 善明*; 佐藤 博隆*; 大前 良磨*; Pham, A.*; 渡辺 賢一*; 松本 吉弘*; 篠原 武尚; 甲斐 哲也; Harjo, S.; et al.

Materials Research Proceedings, Vol.15, p.207 - 213, 2020/02

Japanese swords are very attractive not only as a work of art but also a metallurgical point of view. Since Japanese vintage swords became valuable, it is indispensable to establish non-destructive analysis method to identify some peculiar characteristics. Bragg edge imaging gives real-space distributions of bulk information in a crystalline material as well as neutron tomography. In this work, we investigated crystallographic information of a Japanese sword made by Sukemasa in Izumi province in the first quarter of the 16th century. The experiments have been performed at RADEN at J-PARC. The Sukemasa sword was measured with a counting-type 2D detector and with a CCD camera. We are now analyzing the measured 2D-transmission spectra using RITS code to obtain spatial distribution of the crystallite size, the texture variation, the d110 shift and its broadening. Complementary data analysis using white beam tomography is also on going. Detailed analysis results will be presented.


Feasibility study of two-dimensional neutron-resonance thermometry using molybdenum in 316 stainless-steel

甲斐 哲也; 廣井 孝介; Su, Y.; 瀬川 麻里子; 篠原 武尚; 松本 吉弘*; Parker, J. D.*; 林田 洋寿*; 及川 健一

Materials Research Proceedings, Vol.15, p.149 - 153, 2020/02

A two-dimensional thermometry technique based on neutron resonance reactions derives the temperature of specified elements in an object by analyzing the Doppler broadening of a neutron resonance measured by a time-analyzing neutron imaging-detector. This technique is expected to be one of the important applications of the energy-resolved neutron imaging system, RADEN, at J-PARC. The authors focused on molybdenum contained in 316 stainless-steel (with a weight fraction of 2-3 wt%). Energy-dependent transmitted neutrons were measured through a 3 mm thick 316 stainless-steel plate placed in a heater at temperatures between 23 and 500 degrees Celsius at RADEN using a gas-electron multiplier (GEM) detector. Thermal and cold neutrons were eliminated from the incident beam by a cadmium filter. The sample area within the neutron beam was 30 by 50 mm$$^2$$. The feasibility is discussed in the presentation.


Transient ionization of the mesosphere during auroral breakup; Arase satellite and ground-based conjugate observations at Syowa Station

片岡 龍峰*; 西山 尚典*; 田中 良昌*; 門倉 昭*; 内田 ヘルベルト陽仁*; 海老原 祐輔*; 江尻 省*; 冨川 喜弘*; 堤 雅基*; 佐藤 薫*; et al.

Earth, Planets and Space (Internet), 71, p.9_1 - 9_10, 2019/01

 被引用回数:2 パーセンタイル:36.74(Geosciences, Multidisciplinary)



Recent progress on practical materials study by Bragg edge imaging at J-PARC

及川 健一; Su, Y.; 鬼柳 亮嗣; 川崎 卓郎; 篠原 武尚; 甲斐 哲也; 廣井 孝介; Harjo, S.; Parker, J. D.*; 松本 吉弘*; et al.

Physica B; Condensed Matter, 551, p.436 - 442, 2018/12

 被引用回数:1 パーセンタイル:85.32(Physics, Condensed Matter)

We are promoting for practical product observation by the energy-resolved neutron imaging method using high-intensity pulsed neutrons at J-PARC, under the Photon and Quantum Basic Research Coordinated Development Program from the Ministry of Education, Culture, Sports, Science and Technology, Japan. Bragg edge imaging, one of the energy-resolved neutron imaging methods for visualizing material properties, was applied to feasibility study of the temperature distribution of copper rod, complementary study of the texture and strain distribution of bent steel plates using neutron diffraction and EBSD, and so on. Outline of results obtained by these imaging experiments will be presented.


Characteristics of the 2012 model lithium-6 time-analyzer neutron detector (LiTA12) system as a high efficiency detector for resonance absorption imaging

甲斐 哲也; 佐藤 節夫*; 廣井 孝介; Su, Y.; 瀬川 麻里子; Parker, J. D.*; 松本 吉弘*; 林田 洋寿*; 篠原 武尚; 及川 健一; et al.

Physica B; Condensed Matter, 551, p.496 - 500, 2018/12

 被引用回数:1 パーセンタイル:85.32(Physics, Condensed Matter)

The 2012 model lithium-6 time-analyzer neutron detector (LiTA12) system, based on a lithium glass scintillator and multi-anode photomultiplier tube, has the highest neutron efficiency among the detectors for pulsed neutron imaging together with a flexibility of the efficiency by changing the thickness of the lithium glass. The authors expect this detector system could become a main detector system for the energy-resolved neutron imaging system, RADEN, at J-PARC, and have started evaluation of the LiTA12 system. For example, spatial resolution for resonance absorption imaging was evaluated by using a line-pair pattern made by 3 micro meter thick gold on a quartz plate. Less than 1 mm width line pairs were resolved at an 8 Mcps neutron counting rate and around 5 eV neutron energy.


Effect of upstream beam collimation on neutron phase imaging with a Talbot-Lau interferometer at the RADEN beam line in J-PARC

關 義親; 篠原 武尚; 上野 若菜; Parker, J. D.*; 松本 吉弘*

Physica B; Condensed Matter, 551, p.512 - 516, 2018/12

 被引用回数:3 パーセンタイル:71.96(Physics, Condensed Matter)

3枚の格子からなる中性子タルボ・ロー干渉計は高機能なイメージング装置であり、通常の吸収コントラスト像に加えて、微分位相コントラスト像とビジビリティコントラスト像も同時に取得することができる。我々はJ-PARC MLF RADENビームラインにおいて波長分解型のタルボ・ロー干渉計の開発を進めている。干渉パターンの波長分解解析を行うことで、白色ビーム測定で生じていた色収差による系統誤差を排除するとともに、より定量的な情報を引き出すことが可能になる。この波長分解測定・解析法を前提として、RADENビームラインの波長スペクトルに最適化した干渉計の設計(中心波長・格子周期・格子間距離)を決定した。


Spatial resolution test targets made of gadolinium and gold for conventional and resonance neutron imaging

瀬川 麻里子; 及川 健一; 甲斐 哲也; 篠原 武尚; 林田 洋寿*; 松本 吉弘*; Parker, J. D.*; 中谷 健; 廣井 孝介; Su, Y.; et al.

JPS Conference Proceedings (Internet), 22, p.011028_1 - 011028_8, 2018/11

We have fabricated and utilized spatial resolution test targets made of gadolinium and gold for conventional and resonance neutron imaging performed at RADEN, located at beam line BL22 of the J-PARC Materials and Life Science Experimental Facility (MLF). RADEN covers a broad energy range from cold neutrons to high-energy neutrons with energy of several tens keV and was designed to perform energy-resolved neutron imaging utilizing two-dimensional detectors combined with the accurate measurement of neutron energy by the time-of-flight method. The test targets were designed to verify the spatial resolution and image uniformity of two kinds of neutron detectors, counting-type detectors and camera-type detectors. In this presentation, we report the details of these two-dimensional test targets, and the results of demonstrations using the test targets with our neutron imaging detectors. This work was supported in part by the Photon and Quantum Basic Research Coordinated Development Program from the Ministry of Education, Culture, Sports, Science and Technology, Japan.


Deformation analysis of reinforced concrete using neutron imaging technique

小山 拓*; 上野 一貴*; 関根 麻里子*; 松本 吉弘*; 甲斐 哲也; 篠原 武尚; 飯倉 寛; 鈴木 裕士; 兼松 学*

Materials Research Proceedings, Vol.4, p.155 - 160, 2018/05

 被引用回数:0 パーセンタイル:100

We developed, in this study, a novel method to observe internal deformation of concrete by the neutron transmission imaging technique. In order to visualize the internal deformation of concrete, the cement paste markers containing Gd$$_{2}$$O$$_{3}$$ powder were two-dimensionally dispersed around the ferritic deformed rebar in the reinforced concrete. This experiment was conducted using BL22, RADEN, in the Material and Life Science Experimental Facility of the Japan Proton Accelerator Research Complex. The transmission images of the reinforced concrete sample were taken at several positions on the vertical sample stage, and the displacement of the marker from the initial position was successfully evaluated within approximately $$pm$$0.1 mm accuracy by image analysis for selected markers with higher contrast and circularity. Furthermore, concrete deformation under pull-out loading to the embedded rebar was evaluated by the same way, and its reaction compressive deformation was successfully observed by analyzing the displacement of the markers. The results obtained in this study bring beneficial knowledge that the measurement accuracy of the marker displacement can be improved more by choosing a spherical shape of the marker and by increasing the contrast of the marker.


Reliability estimation of neutron resonance thermometry using tantalum and tungsten

甲斐 哲也; 廣井 孝介; Su, Y.; 篠原 武尚; Parker, J. D.*; 松本 吉弘*; 林田 洋寿*; 瀬川 麻里子; 中谷 健; 及川 健一; et al.

Physics Procedia, 88, p.306 - 313, 2017/06

 被引用回数:2 パーセンタイル:10.17

Neutron resonance thermometry, which measures material temperature by analyzing the Doppler broadening of a neutron resonance peak, is one of the applications of energy-resolved neutron imaging at RADEN of J-PARC. Although this technique is promising, advantages and disadvantages have not been discussed in practical applications. The authors measured neutron transmission rates of tantalum and tungsten foils in a heater chamber up to 300 degrees Celsius at RADEN. The energy-dependent neutron transmission rates with different statistics were obtained after the measurements by selecting arbitrary measuring intervals from one measurement, and the temperatures of the foils were estimated from those transmission rates with different statistics. The reliability of the neutron resonance thermometry with statistical accuracy, irradiation time and spatial resolution are discussed.


Measurement of the Md$$^{3+}$$/Md$$^{2+}$$ reduction potential studied with flow electrolytic chromatography

豊嶋 厚史; Li, Z.*; 浅井 雅人; 佐藤 望; 佐藤 哲也; 菊池 貴宏; 金谷 佑亮; 北辻 章浩; 塚田 和明; 永目 諭一郎; et al.

Inorganic Chemistry, 52(21), p.12311 - 12313, 2013/11

 被引用回数:5 パーセンタイル:70.1(Chemistry, Inorganic & Nuclear)



Structural investigation of thorium in molten lithium-calcium fluoride mixtures for salt treatment process in molten salt reactor

沼倉 正彦*; 佐藤 修彰*; Bessada, C.*; 岡本 芳浩; 赤塚 洋*; 根津 篤*; 下原 康彰*; 田島 圭祐*; 川野 泰和*; 中萩 健志*; et al.

Progress in Nuclear Energy, 53(7), p.994 - 998, 2011/11

 被引用回数:10 パーセンタイル:30.73(Nuclear Science & Technology)



Oxidation of element 102, nobelium, with flow electrolytic column chromatography on an atom-at-a-time scale

豊嶋 厚史; 笠松 良崇*; 塚田 和明; 浅井 雅人; 北辻 章浩; 石井 康雄; 當銘 勇人; 西中 一朗; 羽場 宏光*; 大江 一弘*; et al.

Journal of the American Chemical Society, 131(26), p.9180 - 9181, 2009/07

 被引用回数:12 パーセンタイル:52.47(Chemistry, Multidisciplinary)



Development of an electrochemistry apparatus for the heaviest elements

豊嶋 厚史; 笠松 良崇; 北辻 章浩; 塚田 和明; 羽場 宏光*; 篠原 厚*; 永目 諭一郎

Radiochimica Acta, 96(6), p.323 - 326, 2008/06

 被引用回数:10 パーセンタイル:38.01(Chemistry, Inorganic & Nuclear)



The H-Invitational Database (H-InvDB); A Comprehensive annotation resource for human genes and transcripts

山崎 千里*; 村上 勝彦*; 藤井 康之*; 佐藤 慶治*; 原田 えりみ*; 武田 淳一*; 谷家 貴之*; 坂手 龍一*; 喜久川 真吾*; 嶋田 誠*; et al.

Nucleic Acids Research, 36(Database), p.D793 - D799, 2008/01

 被引用回数:50 パーセンタイル:23.66(Biochemistry & Molecular Biology)



JAEA Takasaki annual report 2005

小原 祥裕

JAEA-Review 2006-042, 240 Pages, 2007/02


高崎量子応用研究所研究年報2005は、同研究所にあるTIARA施設(イオン加速器4基)を利用して2005年4月1日から2006年3月31日までの間に行われた研究・技術開発成果、及び電子・$$gamma$$線照射施設(電子加速器1基, $$^{60}$$Co$$gamma$$線照射施設3棟)を利用して最近数年間で行われた研究・技術開発成果をまとめたものである。この研究年報には、(1)宇宙・原子力・エネルギー,(2)環境・資源,(3)バイオ技術・医学応用,(4)先端材料・計測・基盤技術の4分野に分類した174編の論文及び8編の施設の運転・管理状況報告からなる合計182編が収録されている。また、論文リスト,新聞発表,テレビ放映,出願特許、及び研究実施形態・利用施設の一覧表が付録として含まれている。


Micro-PIXE for the study of atmospheric environment

笠原 三紀夫*; Ma, C.-J.*; 奥村 智憲*; 小嶋 拓治; 箱田 照幸; 田口 光正; 酒井 卓郎; 小原 祥裕

JAEA-Review 2005-001, TIARA Annual Report 2004, p.293 - 295, 2006/01

雲の特性を明らかにするために、神石の鉄-銅鉱山にある巨大垂直坑道を用いて人工雲の発生実験を行った。この個々の雲粒子の物理的化学的特徴を、京都大学における顕微分析とTIARA施設におけるマイクロPIXE分析を用いて調べた。雲粒子のサイズ, その分布, 粒子個数濃度、及び粒子中の塩素の分布状態変化の粒子サイズ依存性にかかわる実験結果から、雲の成長過程を明らかにした。


Microbeam system for heavy ions from cyclotron to irradiate living cells

横田 渉; 小原 祥裕; 荒川 和夫

Proceedings of 36th ICFA Advanced Beam Dynamics Workshop (NANOBEAM 2005) (CD-ROM), 6 Pages, 2005/10



Micro-PIXE technique for the study of asian dust sources

笠原 三紀夫*; Ma, C.-J.*; 奥村 智憲*; 小嶋 拓治; 箱田 照幸; 田口 光正; 酒井 卓郎; 小原 祥裕

JAERI-Review 2004-025, TIARA Annual Report 2003, p.256 - 258, 2004/11


242 件中 1件目~20件目を表示