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Featured researches published by P. R. Williamson.


Science | 1984

Space Plasma Physics Space Experiments with Particle Accelerators

Tatsuzo Obayashi; Nobuki Kawashima; Kyoichi Kuriki; Makoto Nagatomo; Keiken Ninomiya; Susumu Sasaki; Masahisa Yanagisawa; Isao Kudo; M. Ejiri; W. T. Roberts; C. R. Chappell; D. L. Reasoner; J. L. Burch; W. L. Taylor; P. M. Banks; P. R. Williamson; O. K. Garriott

Electron and plasma beams and neutral gas plumes were injected into the space environment by instruments on Spacelab 1, and various diagnostic measurements including television camera observations were performed. The results yield information on vehicle charging and neutralization, beam-plasma interactions, and ionization enhancement by neutral beam injection.


Science | 1984

Space Plasma Physics

Tatsuzo Obayashi; Nobuki Kawashima; Kyoichi Kuriki; Makoto Nagatomo; Keiken Ninomiya; Susumu Sasaki; Masahisa Yanagisawa; Isao Kudo; M. Ejiri; W. T. Roberts; C. R. Chappell; D. L. Reasoner; J. L. Burch; W. L. Taylor; P. M. Banks; P. R. Williamson; O. K. Garriott

A stack of plastic nuclear track detectors was exposed to heavy cosmic rays on the pallet of Spacelab 1. Some layers of the stack were rotated with respect to the main stack to determine the arrival time of the particles. After return of the stack the latent particle tracks are revealed by chemical etching. Under the optical microscope the charge, mass, energy, and impact direction of the particles can be deduced from the track geometry.


Geophysical Research Letters | 1987

Solar flare perturbations in stratospheric current systems

Robert H. Holzworth; K. W. Norville; P. R. Williamson


Geophysical Research Letters | 1986

Gas ionization induced by a high speed plasma injection in space

Susumu Sasaki; Nobuki Kawashima; K. Kuriki; M. Yanagisawa; T. Obayashi; W. T. Roberts; D. L. Reasoner; W. W. L. Taylor; P. R. Williamson; P. M. Banks; J. L. Burch


Geophysical Research Letters | 1987

Plasma parameters in the near wake of the space shuttle

W. J. Raitt; J. V. Eccles; D. C. Thompson; P. M. Banks; P. R. Williamson; R. I. Bush


Geophysical Research Letters | 1985

Ignition of beam plasma discharge in the electron beam experiment in space

Susumu Sasaki; Nobuki Kawashima; K. Kuriki; M. Yanagisawa; T. Obayashi; W. T. Roberts; D. L. Reasoner; W. W. L. Taylor; P. R. Williamson; P. M. Banks; J. L. Burch


Journal of geomagnetism and geoelectricity | 1985

An enhancement of plasma density by neutral gas injection observed in SEPAC Spacelab-1 experiment

Susumu Sasaki; S. Kubota; Nobuki Kawashima; K. Kuriki; M. Yanagisawa; T. Obayashi; W. T. Roberts; D. L. Reasoner; W. W. L. Taylor; P. R. Williamson; P. M. Banks; J. L. Burch


宇宙科学研究所報告. 特集 | 1988

テザーロケット実験 (CHARGE-2) : 電気力学的現象の解析

Susumu Sasaki; K.-I. Oyama; Nobuki Kawashima; Kunio Hirao; Tatsuzo Obayashi; W. J. Raitt; Neil B. Myers; P. R. Williamson; P. M. Banks; W. F. Sharp; 進 佐々木; 孝一郎 小山; 信樹 河島; 邦雄 平尾; 辰蔵 大林


Shuttle Environment and Operations II Conference | 1985

Vacuum and electromagnetic environment measured in SL-1 SEPAC

信樹 河島; 正久 柳澤; 進 佐々木; 恭一 栗木; 辰蔵 大林; Torsten Neubert; P. R. Williamson; P. M. Banks; W. T. Roberts; D. L. Reasoner; W. L. Taylor; J. L. Burch; Nobuki Kawashima; Masahisa Yanagisawa; Susumu Sasaki; Kyoichi Kuriki; Tatsuzo Obayashi


Archive | 1984

Gas Ionization Phenomena in SEPAC SPACELAB-1 Experiment -SEPAC Science Report No,1-

進 佐々木; 信樹 河島; 恭一 栗木; 正久 柳澤; 辰蔵 大林; 信人 長友; 敬虔 二宮; 全機 江尻; 勲 工藤; W. T. Roberts; C. R. Chappell; D. L. Reasoner; J. L. Burch; W. L. Taylor; P. M. Banks; P. R. Williamson; O. K. Garriott; Susumu Sasaki; Nobuki Kawashima; Kyoichi Kuriki; Masahisa Yanagisawa; Tatsuzo Obayashi; Makoto Nagatomo; Keiken Ninomiya; Masaki Ejiri; Isao Kudo

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Nobuki Kawashima

Japan Aerospace Exploration Agency

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Susumu Sasaki

Japan Aerospace Exploration Agency

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D. L. Reasoner

Marshall Space Flight Center

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J. L. Burch

Southwest Research Institute

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W. T. Roberts

Marshall Space Flight Center

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C. R. Chappell

Marshall Space Flight Center

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M. Ejiri

National Institute of Polar Research

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