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1

Suppression of electron waves in relation to the deformation of the electron beam distribution function

Osamu Fukumasa, Ryohei Itatani

Journal:

Physics Letters A

Year:

1978

Language:

english

File:

PDF, 407 KB

english, 1978

2

Wall effects on the percentage of atomic ions in a hydrogen plasma

Osamu Fukumasa, Ryohei Itatani, Setsuo Saeki, Katashi Osaki, Satoshi Sakiyama

Journal:

Physics Letters A

Year:

1984

Language:

english

File:

PDF, 324 KB

english, 1984

3

Two-dimensional particle simulation of negative ion extraction from a volume source

Hiroshi Naitou, Osamu Fukumasa, Kouji Sakachou, Kouji Mutou

Journal:

Fusion Engineering and Design

Year:

1995

Language:

english

File:

PDF, 455 KB

english, 1995

4

Production of fine hydroxyapatite films using the well-controlled thermal plasma

Masahiro Kou, Takafumi Toda, Osamu Fukumasa

Journal:

Surface and Coatings Technology

Year:

2008

Language:

english

File:

PDF, 485 KB

english, 2008

5

Performance characteristics of forced constricted type plasma jet generator with divergent nozzle anode for processing

Katashi Osaki, Satoru Fujimoto, Osamu Fukumasa, Akira Kobayashi

Journal:

Year:

2004

Language:

english

File:

PDF, 409 KB

english, 2004

6

Asymmetric synthesis of α-methyl carboxylic acid derivatives. Stereochemistry in acidic ring opening of epoxides

Mitsuo Fukumasa, Keizo Furuhashi, Junko Umezawa, Osamu Takahashi, Toshihiro Hirai

Journal:

Tetrahedron Letters

Year:

1991

Language:

english

File:

PDF, 251 KB

english, 1991

7

Trifluoropropene oxide as a trifluoromethyl source. Preparation of optically active alcohols

Osamu Takahashi, Keizo Furuhashi, Mitsuo Fukumasa, Toshihiro Hirai

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 224 KB

english, 1990

8

Synthesis of new ceramics from powder mixtures using thermal plasma processing

Journal:

Thin Solid Films

Year:

2001

Language:

english

File:

PDF, 1.17 MB

english, 2001

9

Rapid synthesis of ferrite particles from powder mixtures using thermal plasma processing

Osamu Fukumasa, Takamasa Fujiwara

Journal:

Thin Solid Films

Year:

2003

Language:

english

File:

PDF, 983 KB

english, 2003

10

Application feasibility of high-performance-type plasma jet device to various material processes

Katashi Osaki, Satoru Fujimoto, Osamu Fukumasa

Journal:

Thin Solid Films

Year:

2003

Language:

english

File:

PDF, 563 KB

english, 2003

11

High thermal efficiency-type laminar plasma jet generator for plasma processing

Katashi Osaki, Osamu Fukumasa, Akira Kobayashi

Journal:

Year:

2000

Language:

english

File:

PDF, 225 KB

english, 2000

12

Plasma electrode-type plasma spray gun—effect of powder loading on the behavior of plasma jet

Katashi Osaki, Osamu Fukumasa, Satoru Fujimoto, Akira Kobayashi

Journal:

Year:

2002

Language:

english

File:

PDF, 175 KB

english, 2002

13

Thermal plasma processing — syntheses of diamond and β″-alumina

Osamu Fukumasa, Satoshi Sakiyama

Journal:

Surface and Coatings Technology

Year:

2000

Language:

english

File:

PDF, 8.49 MB

english, 2000

14

Spraying of MgO films with a well-controlled plasma jet

Osamu Fukumasa, Ryuma Tagashira, Kazufumi Tachino, Hirotaka Mukunoki

Journal:

Surface and Coatings Technology

Year:

2003

Language:

english

File:

PDF, 706 KB

english, 2003

15

Study of argon additive in a beam injection type negative ion source using VUV emission spectroscopy

Naoki Nakada, Osamu Fukumasa

Journal:

Thin Solid Films

Year:

2006

Language:

english

File:

PDF, 202 KB

english, 2006

16

D− density distribution and its dependence on plasma parameters in volume negative ion sources

Shigefumi Mori, Osamu Fukumasa

Journal:

Thin Solid Films

Year:

2006

Language:

english

File:

PDF, 215 KB

english, 2006

17

Efficient negative ion production in rf plasmas using a mesh grid bias method

Okada, Junichi, Nakao, Yuichi, Tauchi, Yasushi, Fukumasa, Osamu

Journal:

Review of Scientific Instruments

Year:

2008

Language:

english

File:

PDF, 457 KB

english, 2008

18

Integrated synthesis of AMTEC electrode by using controlled thermal plasma processing

Hirotaka Mukunoki, Osamu Fukumasa, Satoshi Sakiyama

Journal:

Thin Solid Films

Year:

2002

Language:

english

File:

PDF, 1017 KB

english, 2002

19

Particle simulation of the potential formation across the magnetic filter

Naitou, Hiroshi, Fukumasa, Osamu, Sakachou, Kouji

Journal:

Review of Scientific Instruments

Year:

1996

Language:

english

File:

PDF, 293 KB

english, 1996

20

Numerical study on production processes of vibrationally excited molecules in hydrogen negative ion sources

Fukumasa, Osamu, Mutou, Kouji, Naitou, Hiroshi

Journal:

Review of Scientific Instruments

Year:

1992

Language:

english

File:

PDF, 596 KB

english, 1992

21

Pulse modulation for plasma parameter control and optimization of volume H[sup −] ion source

Fukumasa, Osamu, Shinoda, Masahiro

Journal:

Review of Scientific Instruments

Year:

1998

Language:

english

File:

PDF, 328 KB

english, 1998

22

Numerical simulation of cesium effects on plasma parameter dependence of H− production in a tandem ion source (abstract)

Fukumasa, Osamu, Niitani, Eiji

Journal:

Review of Scientific Instruments

Year:

1996

Language:

english

File:

PDF, 284 KB

english, 1996

23

Effects of permanent magnet arrangements and antenna locations on the generation of multicusp electron cyclotron resonance plasma

Namura, Takashi, Arikata, Ichio, Fukumasa, Osamu, Kubo, Makoto, Itatani, Ryohei

Journal:

Review of Scientific Instruments

Year:

1992

Language:

english

File:

PDF, 1.45 MB

english, 1992

24

Observation of the limit cycle in asymmetric plasma divided by a magnetic filter

Ohi, Kazuo, Naitou, Hiroshi, Tauchi, Yasushi, Fukumasa, Osamu

Journal:

Physics of Plasmas

Year:

2001

Language:

english

File:

PDF, 802 KB

english, 2001

25

Effects of the energy distribution of fast electrons on H2 vibrational excitation in a tandem negative ion source

Fukumasa, Osamu

Journal:

Journal of Applied Physics

Year:

1992

Language:

english

File:

PDF, 653 KB

english, 1992

26

Enhancement of pure volume negative ion production using a grid bias method or a magnetic filter method

Jyobira, Yasuhiro, Ito, Daisuke, Fukumasa, Osamu

Journal:

Review of Scientific Instruments

Year:

2008

Language:

english

File:

PDF, 406 KB

english, 2008

27

Hydroxyapatite Coating Using DC Plasma Jet

Kurita, Masanori, Fukumasa, Osamu

Journal:

Japanese Journal of Applied Physics

Year:

2006

Language:

english

File:

PDF, 215 KB

english, 2006

28

Computer simulation of nonlinear interaction between a cold beam and a weakly collisional plasma

Abe, Hirotada, Fukumasa, Osamu, Itatani, Ryohei, Naitou, Hiroshi

Journal:

Physics of Fluids

Year:

1979

Language:

english

File:

PDF, 1.21 MB

english, 1979

29

D[sup −]∕H[sup −] negative ion production versus plasma parameters in a volume negative ion source

Mori, Shigefumi, Fukumasa, Osamu

Journal:

Review of Scientific Instruments

Year:

2008

Language:

english

File:

PDF, 706 KB

english, 2008

30

Identification of cesium effects on enhancement of H− production in a volume negative ion source

Fukumasa, Osamu, Tanebe, Tomoaki, Naitou, Hiroshi

Journal:

Review of Scientific Instruments

Year:

1994

Language:

english

File:

PDF, 638 KB

english, 1994

31

A plasma reactor based on the forced constricted type dc plasma jet and its application to thermal plasma processing in low pressure

Sakiyama, Satoshi, Hirabaru, Tetuya, Fukumasa, Osamu

Journal:

Review of Scientific Instruments

Year:

1992

Language:

english

File:

PDF, 708 KB

english, 1992

32

Isotope effect and cesium dependence of negative ion production in volume H[sup −] and D[sup −] ion sources

Fukumasa, Osamu, Yoshino, Kyogo

Journal:

Review of Scientific Instruments

Year:

1998

Language:

english

File:

PDF, 380 KB

english, 1998

33

Velocity space diffusion of ions in controlled turbulence

Itatani, Ryohei, Yasaka, Yasuyoshi, Fukumasa, Osamu

Journal:

Physics of Fluids

Year:

1977

Language:

english

File:

PDF, 741 KB

english, 1977

34

Isotope effects in an electron beam excited negative ion source

Fukumasa, Osamu, Nishimura, Hideki, Sakiyama, Satoshi, Kimoto, Tatsushi

Journal:

Review of Scientific Instruments

Year:

1996

Language:

english

File:

PDF, 363 KB

english, 1996

35

[IEEE 2009 IEEE 36th International Conference on Plasma Science (ICOPS) - San Diego, CA, USA (2009.06.1-2009.06.5)] 2009 IEEE International Conference on Plasma Science - Abstracts - A study on the relationship between CCFL's characteristics and gas pressure

Uetsuki, Tadao, Aoyama, Naoki, Takeda, Yuji, Yano, Hidetoshi, Fukumasa, Osamu

Year:

2009

Language:

english

File:

PDF, 150 KB

english, 2009

36

Electron energy dependence of vacuum ultraviolet emission and H[sup −] production in a low-pressure hydrogen plasma

Fukumasa, Osamu, Mizuki, Norihisa, Niitani, Eiji

Journal:

Review of Scientific Instruments

Year:

1998

Language:

english

File:

PDF, 397 KB

english, 1998

37

Production of highly uniform electron cyclotron resonance plasmas by distribution control of the microwave electric field

Furuse, Muneo, Watanabe, Seiichi, Tamura, Hitoshi, Fukumasa, Osamu

Journal:

Journal of Vacuum Science & Technology A Vacuum Surfaces and Films

Year:

1999

Language:

english

File:

PDF, 765 KB

english, 1999

38

Particle simulation on extraction of positive and negative ions from a volume source

Naitou, Hiroshi, Fukumasa, Osamu, Sakachou, Kouji, Mutou, Kouji

Journal:

Review of Scientific Instruments

Year:

1994

Language:

english

File:

PDF, 573 KB

english, 1994

39

Effects of external magnetic filter on behaviors of fast primary electrons in a volume negative ion source

Mori, Shigefumi, Fukumasa, Osamu

Journal:

Review of Scientific Instruments

Year:

2008

Language:

english

File:

PDF, 656 KB

english, 2008

40

[AIP PRODUCTION AND NEUTRALIZATION OF NEGATIVE IONS AND BEAMS: 11th International Symposium on the Production and Neutralization of Negative Ions and Beams - Santa Fe, New Mexico (USA) (13-15 September 2006)] AIP Conference Proceedings - Electron Temperature Control in Plasmas with Mesh Grid Bias and its Application to Hydrogen Negative Ion Production

Fukumasa, Osamu, Ito, Daisuke, Jyobira, Yasuhiro

Year:

2007

Language:

english

File:

PDF, 457 KB

english, 2007

41

Synthesis of Diamond Using Low Pressure Plasma Jet

Sakiyama, Satoshi, Fukumasa, Osamu, Aoki, Keiichirou

Journal:

Japanese Journal of Applied Physics

Year:

1994

Language:

english

File:

PDF, 772 KB

english, 1994

42

Pressure Dependence of Negative Hydrogen Ion Production in a Cesium Seeded Tandem Volume Source

Fukumasa, Osamu, Niitani, Eiji

Journal:

Japanese Journal of Applied Physics

Year:

1996

Language:

english

File:

PDF, 211 KB

english, 1996

43

Synthesis of β ′′ -Alumina from Powder Mixture Using Thermal Plasma Processing

Fukumasa, Osamu, Sakiyama, Satoshi, Esaki, Hirotoshi

Journal:

Japanese Journal of Applied Physics

Year:

1999

Language:

english

File:

PDF, 72 KB

english, 1999

44

Continuous Production of Carbon Nanostructures Using Plasma Jet

Yamatani, Yoichi, Fukumasa, Osamu

Journal:

Japanese Journal of Applied Physics

Year:

2006

Language:

english

File:

PDF, 188 KB

english, 2006

45

Diagnosis of Asymmetric Thermal Plasma Jet Using Computer Tomography Technique

Sakiyama, Satoshi, Fukumasa, Osamu

Journal:

Japanese Journal of Applied Physics

Year:

1999

Language:

english

File:

PDF, 496 KB

english, 1999

46

Spatial Control of Electron Energy Distribution Function in a Magnetically Filtered Multicusp Plasma Source

Fukumasa, Osamu, Naitou, Hiroshi, Sakiyama, Satoshi

Journal:

Japanese Journal of Applied Physics

Year:

1991

File:

PDF, 426 KB

1991

47

Spectroscopic Measurement of DC Plasma Jet in Diamond Synthesis

Sakiyama, Satoshi, Fukumasa, Osamu, Murakami, Tomohide, Kobayashi, Tsuyoshi

Journal:

Japanese Journal of Applied Physics

Year:

1997

File:

PDF, 664 KB

1997

48

Enhancement of H - Volume Production in Double Plasma Discharge

Fukumasa, Osamu, Nishimura, Hideki

Journal:

Journal of the Physical Society of Japan

Year:

1996

File:

PDF, 629 KB

1996

49

An Explanation of the Suppression of Instabilities by the Beam Modulation

Fukumasa, Osamu, Obiki, Tokuhiro, Itatani, Ryohei

Journal:

Journal of the Physical Society of Japan

Year:

1972

File:

PDF, 178 KB

1972

50

[AIP Joint meeting of the seventh international symposium on the production and neutralization of negative ions and beams and the sixth European workshop on the production and applicaton of light negative ions - Upton, New York (USA) (23−27 Oct 1995)] AIP Conference Proceedings - Numerical study of cesium effects on negative ion production in volume sources

Fukumasa, Osamu, Niitani, Eiji

Year:

1996

Language:

english

File:

PDF, 387 KB

english, 1996