J. W. Mitchell
Goddard Space Flight Center
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Publication
Featured researches published by J. W. Mitchell.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1994
M. Hof; M. Bremerich; Wolfgang Menn; C. Pfeifer; O. Reimer; M. Simon; J. W. Mitchell; Loius M. Barbier; E. R. Christian; J. F. Ormes; R. E. Streitmatter; R. L. Golden; Steven Jon Stochaj
A drift chamber tracking system was developed and flown as part of the IMAX balloon-borne magnetic spectrometer. The drift chamber uses a hexagonal drift-cell structure and is filled with pure CO2 gas. It operated with high efficiency in the strong and inhomogenous field of a superconducting magnet, demonstrating a spatial resolution of better than 100 μm over most of the drift path for singly charged particles, as well as for helium and lithium nuclei. The drift chamber portion of the spectrometer achieved a maximum detectable rigidity of 175 and 250 GV/c for protons and helium respectively.
Advances in Space Research | 1996
K. Anraku; R. L. Golden; M. Imori; S. Inaba; B. Kimbell; N. Kimura; Y. Makida; H. Matsumoto; H. Matsunaga; J. W. Mitchell; M. Motoki; J. Nishimura; Mitsuaki Nozaki; S. Orito; J. F. Ormes; D. Righter; T. Saeki; R. E. Streitmatter; J. Suzuki; Kei Tanaka; I. Ueda; Nobuyuki Yajima; T. Yamagami; A. Yamamoto; Teppei Yoshida; K. Yoshimura
Abstract A balloon-borne experiment using a superconducting solenoidal magnet spectrometer is being carried out with aims at making a precise measurement of low energy antiproton flux in cosmic rays and a highly sensitive search for primordial antimatter in the Universe. The spectrometer has a unique cylindrical configuration associated with a thin superconducting solenoidal magnet and is realizing a geometrical acceptance of 0.5 m 2 sr. The first scientific ballooning flight was successfully carried out in northern Canada, in summer, 1993, and the second flight is being prepared to be carried out in summer, 1994. Performance of the spectrometer in the first flight and progress of the experiment are described.
Physical Review Letters | 1996
J. W. Mitchell; Loius M. Barbier; E. R. Christian; John F. Krizmanic; K. E. Krombel; J. F. Ormes; R. E. Streitmatter; A. W. Labrador; A. J. Davis; R. A. Mewaldt; Stephen M. Schindler; R. L. Golden; Steven Jon Stochaj; W. R. Webber; Wolfgang Menn; M. Hof; O. Reimer; M. Simon; I. L. Rasmussen
Physical Review Letters | 1995
K. Yoshimura; S. Orito; I. Ueda; K. Anraku; R. L. Golden; M. Imori; S. Inaba; B. Kimbell; N. Kimura; Y. Makida; H. Matsumoto; H. Matsunaga; J. W. Mitchell; M. Motoki; J. Nishimura; Mitsuaki Nozaki; J. F. Ormes; T. Saeki; R. E. Streitmatter; J. Suzuki; Kei Tanaka; Nobuyuki Yajima; T. Yamagami; A. Yamamoto; Teppei Yoshida
Physics Letters B | 2003
Koh Abe; T. Sanuki; Kazuaki Anraku; Y. Asaoka; H. Fuke; S. Haino; N. Ikeda; M. Imori; Kosuke Izumi; Tadashi Maeno; Y. Makida; S. Matsuda; N. Matsui; T. Matsukawa; H. Matsumoto; J. W. Mitchell; A. Moiseev; J. Nishimura; Mitsuaki Nozaki; Shuji Orito; J. F. Ormes; M. Sasaki; E. S. Seo; Y. Shikaze; T. Sonoda; R. Streitmatter; Junichi Suzuki; K. Tanaka; K. Tanizaki; T. Yamagami
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2004
S. Haino; Koh Abe; Kazuaki Anraku; H. Fuke; T. Hams; N. Ikeda; A. Itasaki; Kosuke Izumi; T. Kumazawa; M.H. Lee; Tadashi Maeno; Y. Makida; S. Matsuda; N. Matsui; H. Matsumoto; K. Matsumoto; J. W. Mitchell; A. Moiseev; J. Nishimura; Mitsuaki Nozaki; H. Omiya; Shuji Orito; J. F. Ormes; T. Sanuki; M. Sasaki; E. S. Seo; Y. Shikaze; R. Streitmatter; Junichi Suzuki; Y. Takasugi
Physical Review Letters | 1995
D. R. Beavis; Michael Bennett; J. Carroll; J. Chiba; A. Chikanian; H. J. Crawford; M. Cronqvist; Y. Dardenne; R. Debbe; T. Doke; J. Engelage; L. Greiner; T. J. Hallman; R. Hayano; H. H. Heckman; T. Kashiwagi; J. Kikuchi; S. Kumar; C. Kuo; P. J. Lindstrom; J. W. Mitchell; S. Nagamiya; J. L. Nagle; J. K. Pope; P. W. Stankus; K. H. Tanaka; R. Welsh; W. Zhan
Physical Review C | 1998
Michael Bennett; J. K. Pope; D. R. Beavis; J. Carroll; J. Chiba; A. Chikanian; H. J. Crawford; M. Cronqvist; Y. Dardenne; R. Debbe; T. Doke; J. Engelage; L. Greiner; R. Hayano; T. J. Hallman; H. H. Heckman; T. Kashiwagi; J. Kikuchi; B. S. Kumar; C. Kuo; P. J. Lindstrom; J. W. Mitchell; S. Nagamiya; J. L. Nagle; P. W. Stankus; K. H. Tanaka; R. C. Welsh; W. Zhan
Archive | 2001
M. Motoki; T. Sanuki; Shuji Orito; Koh Abe; Kazuaki Anraku; Y. Asaoka; M. Fujikawa; H. Fuke; S. Haino; M. Imori; Kosuke Izumi; Tadashi Maeno; Y. Makida; N. Matsui; H. Matsumoto; Hiroyuki Matsunaga; J. W. Mitchell; T. Mitsui; A. Moiseev; J. Nishimura; Mitsuaki Nozaki; J. F. Ormes; T. Saeki; M. Sasaki; E. S. Seo; Y. Shikaze; T. Sonoda; R. Streitmatter; Junichi Suzuki; K. Tanaka
Physical Review C | 1997
Michael Bennett; D. R. Beavis; J. Carroll; J. Chiba; A. Chikanian; H. J. Crawford; M. Cronqvist; Y. Dardenne; R. Debbe; T. Doke; J. Engelage; L. Greiner; R. Hayano; T. J. Hallman; H. H. Heckman; T. Kashiwagi; J. Kikuchi; B. S. Kumar; C. Kuo; P. J. Lindstrom; J. W. Mitchell; S. Nagamiya; J. L. Nagle; J. K. Pope; P. W. Stankus; K. H. Tanaka; R. C. Welsh; W. Zhan
