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Journal Articles

Quantitative measurement of hard X-ray spectra for high intensity laser produced plasma

Zhang, Z.*; Nishimura, Hiroaki*; Namimoto, Takura*; Fujioka, Shinsuke*; Arikawa, Yasunobu*; Nishikino, Masaharu; Kawachi, Tetsuya; Sagisaka, Akito; Hosoda, Hirokazu*; Orimo, Satoshi; et al.

Review of Scientific Instruments, 83(5), p.053502_1 - 053502_5, 2012/05

 Times Cited Count:18 Percentile:62.46(Instruments & Instrumentation)

X-ray line spectra ranging from 17 to 77 keV were quantitatively measured with a Laue spectrometer, composed of a cylindrically curved crystal and a detector. Either a visible CCD detector coupled with a CsI phosphor screen or an imaging plate can be chosen, depending on the signal intensities and exposure times. The absolute sensitivity of the spectrometer system was calibrated using pre-characterized laser-produced X-ray sources and radioisotopes. The integrated reflectivity for the crystal is in good agreement with predictions by an open code for X-ray diffraction. The energy transfer efficiency from incident laser beams to hot electrons, as the energy transfer agency for specific X-ray line emissions, is derived as a consequence of this work.

Journal Articles

Prompt in-line diagnosis of single bunch transverse profiles and energy spectra for laser-accelerated ions

Sakaki, Hironao; Nishiuchi, Mamiko; Hori, Toshihiko; Bolton, P.; Yogo, Akifumi; Katagiri, Masaki*; Ogura, Koichi; Sagisaka, Akito; Pirozhkov, A. S.; Orimo, Satoshi; et al.

Applied Physics Express, 3(12), p.126401_1 - 126401_3, 2010/11

 Times Cited Count:8 Percentile:34.47(Physics, Applied)

Many applications of laser-accelerated ions will require beamlines with diagnostic capability for validating simulations and machine performance at the single bunch level as well as for the development of controls to optimize machine performance. We demonstrated prompt, in-line, single bunch transverse profile and energy spectrum detection using a thin luminescent diagnostic and scintillator-based time-of-flight spectrometer simultaneously. The Monte Carlo code, particle and heavy ion transport code systems (PHITS) simulation is shown to be reasonably predictive at low proton energy for the observed transverse profiles measured by the thin luminescent monitor and also for single bunch energy spectra measured by time-of-flight spectrometry.

Journal Articles

Transient-Grating FROG for measurement of sub-10-fs to few-ps amplified pulses

Pirozhkov, A. S.; Mori, Michiaki; Ogura, Koichi; Nishimura, Akihiko; Murakami, Hiroshi; Shimada, Yukihiro; Sagisaka, Akito; Orimo, Satoshi; Kimura, Toyoaki; Daido, Hiroyuki

Advanced Solid-State Photonics; OSA Technical Digest Series (CD-ROM), p.MC8_1 - MC8_3, 2008/01

Oral presentation

Measurement technology for safeguards analysis at the Tokai reprocessing plant

Yamamoto, Masahiko; Surugaya, Naoki; Taguchi, Shigeo; Ishibashi, Atsushi; Horigome, Kazushi; Yamazaki, Hitoshi; Ogura, Hiroshi; Watahiki, Hiromi; Watanabe, Masahisa; Kurosawa, Akira; et al.

no journal, , 

no abstracts in English

Oral presentation

Development of the solid scintillator for the determination of trace amount of plutonium

Ogura, Hiroshi; Inada, Satoshi; Igarashi, Kazuto*; Yamada, Keiji; Watahiki, Masaru

no journal, , 

no abstracts in English

Oral presentation

Reforming on surface of metallic material for fuel cell by using high-intensity laser driven proton beam

Orimo, Satoshi; Abe, Hiroshi; Daido, Hiroyuki; Nishiuchi, Mamiko; Kishimoto, Masahiko*; Aone, Shigeo*; Uchida, Hirohisa*; Ogura, Koichi; Pirozhkov, A. S.; Suguyama, Hironori*; et al.

no journal, , 

The fuel cell was researched in the Kansai Photon Science Institute, JAEA. It has aimed at the surface modification of a metallic material. The laser driven proton beam is a spectrum of 10 kev-MeV that the pulse duration is about ns. The irradiation did -10-100 shot by 1Hz J-KAREN laser system.

Oral presentation

Acidity determination of plutonium in nitric acid solution by supersonic wave technique

Ogura, Hiroshi; Masui, Kenji; Watanabe, Nobuhisa; Kuno, Takehiko; Yamada, Keiji

no journal, , 

no abstracts in English

7 (Records 1-7 displayed on this page)
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