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Journal Articles

Negative muonium ion production with a C12A7 electride film

Otani, Masashi*; Fukao, Yoshinori*; Futatsukawa, Kenta*; Kawamura, Naritoshi*; Matoba, Shiro*; Mibe, Tsutomu*; Miyake, Yasuhiro*; Shimomura, Koichiro*; Yamazaki, Takayuki*; Hasegawa, Kazuo; et al.

Journal of Physics; Conference Series, 1350, p.012067_1 - 012067_6, 2019/12

 Times Cited Count:0 Percentile:0.07

Negative muonium atom ($$mu^+$$e$$^-$$e$$^-$$, Mu$$^-$$) has unique features stimulating potential interesting for several scientific fields. Since its discovery in late 1980's in vacuum, it has been discussed that the production efficiency would be improved using a low-work function material. C12A7 was a well-known insulator as a constituent of alumina cement, but was recently confirmed to exhibit electric conductivity by electron doping. The C12A7 electride has relatively low-work function (2.9 eV). In this paper, the negative muonium production measurement with several materials including a C12A7 electride film will be presented. Measured production rate of the Mu$$^-$$ were 10$$^{-3}$$/s for all the Al, electride, and SUS target. Significant enhancement on electride target was not observed, thus it is presumed that the surface condition should be more carefully treated. There was no material dependence of the Mu$$^-$$ averaged energy: it was 0.2$$pm$$0.1keV.

Journal Articles

Commentaries for third secondary national examination on fiscal 2010 for the professional engineer of nuclear and radiation; Commentaries (Part 2) including key point for elective examinations

Sasaki, Satoru; Suzuki, Soju; Nakano, Junichi; Takamatsu, Misao; Matoba, Ichiyo*; Nakano, Makoto*; Oketani, Koichiro*; Natsume, Tomohiro*

Genshiryoku eye, 57(2), p.66 - 75, 2011/02

no abstracts in English

Journal Articles

High energy laser wakefield acceleration

Kotaki, Hideyuki; Kando, Masaki; Hosokai, Tomonao; Kondo, Shuji; Masuda, Shinichi; Kanazawa, Shuhei; Yokoyama, Takashi*; Matoba, Toru; Nakajima, Kazuhisa

International Journal of Applied Electromagnetics and Mechanics, 14(1-4), p.255 - 262, 2003/03

no abstracts in English

Journal Articles

Direct measurement of coherent ultrahigh wakefields excited by intense ultrashort laser pulses in a gas-jet plasma

Kotaki, Hideyuki; Kando, Masaki; Oketa, Takatsugu; Masuda, Shinichi; Koga, J. K.; Kondo, Shuji; Kanazawa, Shuhei; Yokoyama, Takashi*; Matoba, Toru; Nakajima, Kazuhisa

Physics of Plasmas, 9(4), p.1392 - 1400, 2002/04

 Times Cited Count:44 Percentile:80.06(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Present status of the JAERI photocathode microtron

Kando, Masaki; Kotaki, Hideyuki; Kondo, Shuji; Kanazawa, Shuhei; Masuda, Shinichi; Yokoyama, Takashi*; Matoba, Toru; Nakajima, Kazuhisa

Proceedings of 26th Linear Accelerator Meeting in Japan, p.132 - 134, 2001/08

no abstracts in English

Journal Articles

Development of plasma waveguide using fast z-pinch capillary discharge

Masuda, Shinichi; Kando, Masaki; Kotaki, Hideyuki; Hosokai, Tomonao*; Kondo, Shuji; Kanazawa, Shuhei; Yokoyama, Takashi*; Matoba, Toru; Nakajima, Kazuhisa

Proceedings of 13th Symposium on Accelerator Science and Technology, 3 Pages, 2001/00

no abstracts in English

Journal Articles

High energy electron acceleration by high peak power laser

Kotaki, Hideyuki; Kando, Masaki; Kondo, Shuji; Masuda, Shinichi; Kanazawa, Shuhei; Yokoyama, Takashi*; Matoba, Toru; Nakajima, Kazuhisa

Proceedings of 13th Symposium on Accelerator Science and Technology, 3 Pages, 2001/00

no abstracts in English

JAEA Reports

Lasing performance of a long pulse Ti:Sapphire free running laser

Ozu, Akira; Nishimura, Akihiko; Usami, Tsutomu*; Matoba, Toru

JAERI-Research 2000-013, p.39 - 0, 2000/03

JAERI-Research-2000-013.pdf:1.8MB

no abstracts in English

Journal Articles

High-repetition-rate 2J Nd:YAG oscillator-amplifier system

Tei, Kazuyoku; Kato, Masaaki; Matsuoka, Fumiaki*; Niwa, Yoshito*; Maruyama, Yoichiro; Matoba, Toru; Arisawa, Takashi

Optical Engineering, 39(1), p.320 - 322, 2000/01

 Times Cited Count:4 Percentile:27.25(Optics)

no abstracts in English

Journal Articles

Highly efficient second harmonic generation by using four pass quadrature frequency conversion

Kiriyama, Hiromitsu; Matsuoka, Shinichi; Maruyama, Yoichiro; Matoba, Toru; Arisawa, Takashi

Advanced High-power Lasers (Proceedings of SPIE Vol.3889), p.638 - 643, 2000/00

no abstracts in English

Journal Articles

Thermal lens effects on highly pumped Yb:glass

Nishimura, Akihiko; Akaoka, Katsuaki; Ozu, Akira; Sugiyama, Akira; Usami, Tsutomu*; Matoba, Toru

Advanced High-power Lasers (Proceedings of SPIE Vol.3889), p.414 - 419, 2000/00

no abstracts in English

Journal Articles

Instantaneous measurement system of the effective photon energy for a single shot X-ray pulse radiation

Ozu, Akira; Ito, Kazunori*; Matoba, Toru; Kawanishi, Shunichi; Arisawa, Takashi

Review of Scientific Instruments, 70(9), p.3776 - 3777, 1999/09

 Times Cited Count:1 Percentile:20.75(Instruments & Instrumentation)

no abstracts in English

Journal Articles

High-repetition rate 1-J green laser system

*; Kato, Masaaki; Matsuoka, Fumiaki*; Niwa, Yoshito*; Maruyama, Yoichiro; Matoba, Toru; Arisawa, Takashi

Applied Optics, 38(21), p.4548 - 4551, 1999/07

 Times Cited Count:8 Percentile:43.84(Optics)

no abstracts in English

Journal Articles

Collisional effects on population inversion in optical-field-ionized plasmas

Sagisaka, Akito*; Nagashima, Keisuke; Yamagiwa, Mitsuru; Matoba, Toru; *

Journal of the Physical Society of Japan, 68(4), p.1221 - 1227, 1999/04

 Times Cited Count:2 Percentile:26.58(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Yb:glass laser oscillation and wavefront measurements under high intensity pumping

Nishimura, Akihiko; Ozu, Akira; Akaoka, Katsuaki; Usami, Tsutomu*; *; Matoba, Toru

Denki Gakkai Hikari, Ryoshi Debaisu Kenkyukai Shiryo OQD-99-1-6, p.25 - 28, 1999/03

no abstracts in English

Journal Articles

Diffusion bonded KTiOPO$$_{4}$$ crystal for the second harmonic generation of high average power zigzag slab Nd:YAG laser

*; Kato, Masaaki; Matsuoka, Fumiaki*; Niwa, Yoshito*; Maruyama, Yoichiro; Matoba, Toru; Arisawa, Takashi

Japanese Journal of Applied Physics, Part 2, 38(1A-B), p.L35 - L37, 1999/01

 Times Cited Count:6 Percentile:33.31(Physics, Applied)

no abstracts in English

Journal Articles

Multilaser and high spatially resolved multipoint Thomson scattering system for the JT-60U tokamak

Yoshida, Hidetoshi; Naito, Osamu; Yamashita, Osamu; Kitamura, Shigeru; *; *; *; *; Hatae, Takaki; Nagashima, Akira; et al.

Review of Scientific Instruments, 70(1), p.751 - 754, 1999/01

 Times Cited Count:13 Percentile:65.88(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Relaxation of electron energy distributions and population inversion in optical-field-ionized plasmas

Sagisaka, Akito*; Nagashima, Keisuke; Yamagiwa, Mitsuru; Matoba, Toru; *

Inst. Phys. Conf. Ser., (159), p.289 - 292, 1999/00

no abstracts in English

Journal Articles

Present status of advanced photon science research program related to X-, and $$gamma$$-ray emission source development

Arisawa, Takashi; Matoba, Toru; Yamakawa, Koichi; Maruyama, Yoichiro; Sasuga, Tsuneo; Wakaida, Ikuo; Nakajima, Kazuhisa*; Sasaki, Akira; Minehara, Eisuke; Oshima, Masumi

Proc. of the 1st International Induced Gamma Emision Workshop, p.29 - 41, 1999/00

no abstracts in English

Journal Articles

Second harmonic generation of LD-pumped high repetition rate and high energy Nd:YAG laser using a directly bonded KTP crystal

Maruyama, Yoichiro; *; Kato, Masaaki; Niwa, Yoshito*; Matsuoka, Fumiaki*; Matoba, Toru; Arisawa, Takashi; Oba, Masaki

Trends in Optics and Photonics;Advanced Solid-State Lasers, 26, p.45 - 48, 1999/00

no abstracts in English

65 (Records 1-20 displayed on this page)