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JAEA Reports

Development of technology for rapid analysis of strontium-90 with low isotopic abundance using laser resonance ionization (Contract research); FY2018 Center of World Intelligence Project for Nuclear Science/Technology and Human Resource Development

Collaborative Laboratories for Advanced Decommissioning Science; The University of Tokyo*

JAEA-Review 2019-027, 70 Pages, 2020/01


JAEA/CLADS, had been conducting the Center of World Intelligence Project for Nuclear Science/Technology and Human Resource Development (hereafter referred to "the Project") in FY2018. The Project aims to contribute to solving problems in nuclear energy field represented by the decommissioning of the Fukushima Daiichi Nuclear Power Station, Tokyo Electric Power Company Holdings, Inc. For this purpose, intelligence was collected from all over the world, and basic research and human resource development were promoted by closely integrating/collaborating knowledge and experiences in various fields beyond the barrier of conventional organizations and research fields. The sponsor of the Project was moved from the Ministry of Education, Culture, Sports, Science and Technology to JAEA since the newly adopted proposals in FY2018. On this occasion, JAEA constructed a new research system where JAEA-academia collaboration is reinforced and medium-to-long term research/development and human resource development contributing to the decommissioning are stably and consecutively implemented. Among the adopted proposals in FY2018, this report summarizes the research results of the "Development of Technology for Rapid Analysis of Strontium-90 with Low Isotopic Abundance Using Laser Resonance Ionization". In this study, we will develop a rapid analysis technique for strontium-90 using diode laser-based resonance ionization with elemental and isotopic selectivity. Strontium-90 is one of the major difficult-to-measure nuclides released into the environment due to the accident at Tokyo Electric Power Company (TEPCO)'s Fukushima Daiichi Nuclear Power Station. Our method is particularly intended for real samples which contain high concentrations of strontium stable isotopes such as marine samples.

Journal Articles

Influence of grating type obstacle on stratification breakup by a vertical jet

Abe, Satoshi; Ishigaki, Masahiro; Shibamoto, Yasuteru; Yonomoto, Taisuke

Proceedings of 12th International Topical Meeting on Nuclear Reactor Thermal-Hydraulics, Operation and Safety (NUTHOS-12) (USB Flash Drive), 9 Pages, 2018/10

Journal Articles

High-efficiency contact grating fabricated on the basis of a Fabry-Perot type resonator for terahertz wave generation

Yoshida, Fumiko; Nagashima, Keisuke; Tsubouchi, Masaaki; Ochi, Yoshihiro; Maruyama, Momoko; Sugiyama, Akira

Japanese Journal of Applied Physics, 55(1), p.012201_1 - 012201_5, 2016/01

 Times Cited Count:6 Percentile:30.05(Physics, Applied)

Journal Articles

Magnification of a polarization angle with a Littrow layout brazed grating

Sasao, Hajime; Arakawa, Hiroyuki*; Kubo, Hirotaka; Kawano, Yasunori; Itami, Kiyoshi

Review of Scientific Instruments, 85(8), p.086106_1 - 086106_3, 2014/08

 Times Cited Count:2 Percentile:11.44(Instruments & Instrumentation)

Journal Articles

Ultrafast X-ray absorption spectroscopy of laser-excited materials

Koike, Masato

JAERI-Conf 2005-004, p.15 - 18, 2005/04

Advanced Light Source (ALS) Beamline 6.0 is designed for X-ray absorption spectroscopy with femtosecond X-ray pulses generated by the bunch "slicing" technique. Soft and hard X-ray branch lines will cover a wide photon energy range from 120 eV to 10 keV. A soft X-ray spectrograph will collect absorption spectra dispersively. The application of laminar gratings to dispersive X-ray absorption spectroscopy in the photon energy range 2- 8 keV has been investigated.

Journal Articles

Radiation induced segregation and freely migrating defects

Iwase, Akihiro

Materia, 41(1), p.20 - 27, 2002/01

no abstracts in English

Journal Articles

First results from the actinide science beamline BL23SU at SPring-8

Saito, Yuji; Nakatani, Takeshi*; Matsushita, Tomohiro*; Agui, Akane; Yoshigoe, Akitaka; Teraoka, Yuden; Yokoya, Akinari

Nuclear Instruments and Methods in Physics Research A, 474(3), p.253 - 258, 2001/12

 Times Cited Count:75 Percentile:97.52(Instruments & Instrumentation)

The present performance of a soft X-ray bealmine BL23SU at SPring-8 is described. The resolving power realized on a varied-line-spacing plane grating monochromator connected to a was estimated to be better than 10000 at 400 eV and 6500 at 867 eV. In addition, reasonable photon flux of more than 10$$^{11}$$ photons/sec/100mA/0.02% b.w. is available in the energy range of 0.5-1.8 keV at experimental stations.

JAEA Reports

Measurement of profile and intensity of proton beam by an integrated current transformer and a segmented parallel-plate ion chamber for the AGS-Spallation Target Experiment (ASTE)

Meigo, Shinichiro; Nakashima, Hiroshi; Takada, Hiroshi; Kasugai, Yoshimi; Ino, Takashi*; Maekawa, Fujio; Hastings, J.*; Watanabe, Noboru; Oyama, Yukio; Ikeda, Yujiro

JAERI-Data/Code 2001-014, 23 Pages, 2001/03


no abstracts in English

Journal Articles

In-pile and post-irradiation creep of type 304 stainless steel under different neutron spectra

Kurata, Yuji; Itabashi, Yukio; Mimura, Hideaki*; Kikuchi, Taiji; Amezawa, Hiroo; Shimakawa, Satoshi; Tsuji, Hirokazu; Shindo, Masami

Journal of Nuclear Materials, 283-287(Part.1), p.386 - 390, 2000/12

 Times Cited Count:5 Percentile:37.77(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Single pulse nm-size grating formation in polymers using laser ablation with an irradiation wavelength of 355nm

Lippert, T.*; Gerber, T.*; Wokaun, A.*; Funk, D. J.*; Fukumura, H.; Goto, Masahiro

Applied Physics Letters, 75(7), p.1018 - 1020, 1999/00

 Times Cited Count:39 Percentile:81.45(Physics, Applied)

no abstracts in English

Journal Articles

Intercascade annihilation of freely migrating defects

Iwase, Akihiro; L.E.Rehn*; P.M.Baldo*; L.Funk*

Applied Physics Letters, 67(2), p.229 - 231, 1995/07

 Times Cited Count:12 Percentile:55.7(Physics, Applied)

no abstracts in English

Journal Articles

Twenty-channel grating polychromator diagnostic system for electron cyclotron emission measurement in JT-60

Ishida, Shinichi; Nagashima, Akira; Sato, Masayasu; Isei, Nobuaki; Matoba, Toru

Review of Scientific Instruments, 61(10), p.2834 - 2836, 1990/10

 Times Cited Count:21 Percentile:85.88(Instruments & Instrumentation)

no abstracts in English

Oral presentation

Generation of high power THz light by contact grating method

Tsubouchi, Masaaki; Nagashima, Keisuke; Yoshida, Fumiko; Ochi, Yoshihiro; Maruyama, Momoko

no journal, , 

The nonlinear interaction between terahertz (THz) light and matter has recently been of interest for its availability to control molecular alignment in space. The pulse train of the intense THz light is one of the candidates to align the molecules efficiently and nondestructively. In this study, we have developed the experimental apparatus to generate the intense THz light. The THz etalon to generate the THz pulse train has been presented in our previous study

13 (Records 1-13 displayed on this page)
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