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Journal Articles

Evidence for a hard gap and Wigner lattice in heavily boron-doped synthetic diamond

Sudo, Tomoko*; Ohashi, Kazutoshi*; Sato, Toshimaro*; Ota, Eiji*; Okayasu, Satoru; Sugai, Hiroyuki

Physical Review B, 71(4), p.045211_1 - 045211_7, 2005/01

 Times Cited Count:1 Percentile:7.18(Materials Science, Multidisciplinary)

We have measured low frequency generation-recombination noise (g-r moise) spectra of a heavily boro-doped diamond crystal over the temperature range 20-300 K. The experimental results show that there are two peaks in the g-r noise spectrum at 120 K and 67 K, respectively. The 120 K peak corresponds to experimental evidence for the existence of hard gap having width of 10.4 meV. We interpret the 67 K peak as evidence for Wigner lattice formation whose gap width is 5.8 meV.

Journal Articles

X-ray photoelectron spectroscopy study on change of chemical state of diamond window by ion implantation

Morimoto, Yasutomi*; Sasaki, Masayoshi*; Kimura, Hiromi*; Sakamoto, Keishi; Imai, Tsuyoshi; Okuno, Kenji*

Fusion Engineering and Design, 66-68, p.651 - 656, 2003/09

 Times Cited Count:3 Percentile:25.70(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Radiation detector using single crystal artificial diamond

Nishitani, Takeo

Isotope News, (569), p.2 - 4, 2001/10

no abstracts in English

Journal Articles

ITER R&D: Auxiliary systems; Electron cyclotron heating and current drive system

Imai, Tsuyoshi; Kobayashi, Noriyuki*; Temkin, R.*; Thumm, M.*; Tran, M. Q.*; Alikaev, V.*

Fusion Engineering and Design, 55(2-3), p.281 - 289, 2001/07

 Times Cited Count:52 Percentile:94.88(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Diamond radiation detector made of an nultrahigh-purity type IIa diamond crystal grown by high-pressure and high-temperature synthesis

Tanaka, Teruya; Kaneko, Junichi; Takeuchi, Daisuke*; Sumiya, Hitoshi*; Katagiri, Masaki; Nishitani, Takeo; Takeuchi, Hiroshi; Iida, Toshiyuki*; Okushi, Hideyo*

Review of Scientific Instruments, 72(2), p.1406 - 1410, 2001/02

 Times Cited Count:8 Percentile:46.72(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Development of high power gyrotron for ECH system

Imai, Tsuyoshi; Sakamoto, Keishi; Kasugai, Atsushi; Tsuneoka, Masaki; Takahashi, Koji; Shoyama, Hiroaki; Ikeda, Yukiharu; Ikeda, Yoshitaka; Kajiwara, Ken; Fujii, Tsuneyuki; et al.

Heisei-12-Nendo Denki Gakkai Genshiryoku Kenkyu Shiryo (NE-00-4), p.19 - 24, 2000/09

no abstracts in English

Journal Articles

Development of ECRF components and system for ITER and JT-60U tokamak

Fujii, Tsuneyuki; Imai, Tsuyoshi

Strong Microwaves in Plasmas 2000 Vol.2, p.615 - 628, 2000/00

no abstracts in English

Journal Articles

Development of high power gyrotron in JAERI

Sakamoto, Keishi; Kasugai, Atsushi; Shoyama, Hiroaki; Takahashi, Koji; Tsuneoka, Masaki; Ikeda, Yukiharu; Kajiwara, Ken; Ikeda, Yoshitaka; Kariya, Tsuyoshi*; Mitsunaka, Yoshika*; et al.

Shingaku Giho, 99(498), p.37 - 42, 1999/12

no abstracts in English

Journal Articles

Diamond window for high power millimeter wave

Imai, Tsuyoshi; Sakamoto, Keishi

NEW DIAMOND, 15(1), p.26 - 27, 1999/11

no abstracts in English

Journal Articles

High power 170 GHz gyrotron with synthetic diamond window

Sakamoto, Keishi; Kasugai, Atsushi; Tsuneoka, Masaki; Takahashi, Koji; Imai, Tsuyoshi; ; Mitsunaka, Yoshika*

Review of Scientific Instruments, 70(1), p.208 - 212, 1999/01

 Times Cited Count:68 Percentile:94.41(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Response function measurement of a synthetic diamond radiation detector for 14 MeV neutrons

Kaneko, Junichi; Ikeda, Yujiro; Nishitani, Takeo; Katagiri, Masaki

Review of Scientific Instruments, 70(1), p.1100 - 1103, 1999/01

 Times Cited Count:22 Percentile:77.31(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Development of a synthetic diamond radiation detector with a boron doped CVD diamond contact

Kaneko, Junichi; Katagiri, Masaki; Ikeda, Yujiro; Nishitani, Takeo

Nuclear Instruments and Methods in Physics Research A, 422, p.211 - 215, 1999/00

 Times Cited Count:24 Percentile:83.87(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Gyrotron as high power millimeter wave oscillator

Imai, Tsuyoshi; Sakamoto, Keishi

EMC: electro magnetic compatibility: solution technology: Denji Kankyo Kogaku Joho, (127), p.27 - 34, 1998/11

no abstracts in English

Journal Articles

Development of radiation detectors using synthetic diamond crystals

Kaneko, Junichi; Katagiri, Masaki; Ikeda, Yujiro; Nishitani, Takeo

Advanced Materials'98;Advanced Materials Research Utilizing Extreme Conditions, p.257 - 260, 1998/00

no abstracts in English

Journal Articles

Analysis on signals from synthetic diamond radiation detectors and suppression of a polarization phenomenon

Kaneko, Junichi; Katagiri, Masaki; Ikeda, Yujiro; Nishitani, Takeo

Radiation Detectors and Their Uses, p.259 - 263, 1998/00

no abstracts in English

15 (Records 1-15 displayed on this page)
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