The W Values and Fano Factors in Helium and Argon-Doped Helium

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概要

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• The W values and Fano factors for 5.3 MeV alpha-particles have been measured with a gridded ionization chamber and are found to be 43.3±0.3 eV and 28.9±0.2 eV, and 0.24±0.02 and 0.11±0.02 for pure helium and helium+argon (1%), respectively. The W values for both gases agree fairly well with tlneoretical estimates as well as with previous experimental results and especially with the results of Jesse. The corresponding Fano factors, however, are significantly large compared with those theoretically calculated for the case of electron incidence. The reasons for this difference arediscussed.

• 社団法人応用物理学会の論文
• 1992-05-15

著者

• DOKE Tadayoshi

  Science and Engineering Research Laboratory, Waseda University

• Kikuchi Jun

  Science and Engineering Research Lab., Waseda University

• Doke Tadayoshi

  Science And Engineering Research Laboratory Waseda University

• Kikuchi Jun

  Science And Engineering Research Laboratory Waseda University

• ISHIDA Nobumiti

  Science and Engineering Research Laboratory, Waseda University

• Ishida N

  Yamagata Univ. Yamagata Jpn

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• Accelerator Beam Experiments of a Prototype Cosmic Ray Heavy Ion Telescope
• Energy Loss and Straggling of High-Energy Electrons in Silicon Detectors
• Mass and Energy Limit of Isotope Identification of Heavy Ions Using ?E-E Silicon-Detector Telescope
• New Formulae for Energy Resolution of Sampling Calorimeter
• Observations of Ultraheavy Cosmic Ray Particles with Z>45 at 10 GV Geomagnetic Cutoff Rigidity
• Energy Losses and Ranges of Low Energy Heavy Charged Particles in Plastic Nuclear Track Detectors
• Design of a Liquid Xenon Calorimeter for the Observation of Cosmic Gamma Ray Lines in the 1 ∼ 100 GeV Region
• General Method to Determine the Position-Charge Relationship for Position-Sensitive Detectors with Variously Shaped Resistive Anodes
• The W Values and Fano Factors in Helium and Argon-Doped Helium

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