Kinetic Processes of the Scintillation in Helium Excited by Alpha Particles

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概要

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• The time dependence of the scintillations in pure heliuna excited by alphaparticles has been measured in the pressure range of 100 to 1200 Torr by using asingle photon counting technique. The time dependence of helium scintillationin the vacuuna-ultraviolet region consists of a slow component and a fast one.The slow coutaponent emission appears to arise from two-body Frankx-Condoncollisions involving a 2"S atonnic state and from the deexcitation of the A"l:naolecular state created from three-body conversion of a 2'S state. The fastcomponent enaission arises front the deexcitation of the D'l: mo]ec?alar stateformed by three-body collisions involving a 2'P atomic state. Radiative decayconstant for the D'l : molecules is (2.2f0.2) x 10' sec '

• 社団法人日本物理学会の論文
• 1980-10-15

著者

• Iida Takao

  Department Of Nuclear Engineering Faculty Of Engineering Nagoya University

• Iida Takao

  Graduate School Of Engineering Nagoya University

• HOSOE Hirotaro

  Department of Nuclear Engineering,Faculty of Engineering,Nagoya University

• URABE Itsumasa

  Department of Nuclear Engineering,Faculty of Engineering,Nagoya University

• Hosoe Hirotaro

  Department Of Nuclear Engineering Faculty Of Engineering Nagoya University

• Urabe Itsumasa

  Department Of Nuclear Engineering Faculty Of Engineering Nagoya University:research Reactor Institut

• Urabe Itsumasa

  Department Of Electronic And Electrical Engineering Faculty Of Engineering Fukuyama University

• Iida Takao

  Department Of Energy Engineering And Science Graduate School Of Engineering Nagoya University

関連論文

• Development of a Real-Time Environmental Radiation Dose Evaluation System for the Vicinity of a Nuclear Facility
• Kinetic Processes of the Scintillation in Helium Excited by Alpha Particles
• Development of Three-Dimensional Numerical Model for ^Rn and its Decay Products Coupled with a Mesoscale Meteorological Model I. Model Description and Validation
• Determination of Alpha Particle Detection Efficiency of an Imaging Plate (IP) Detector(Part 3:English)
• Modeling Radon Flux Density from the Earth's Surface
• Effects of Atmospheric Transport on Temporal Variations of ^Rn and Its Progeny Concentration in the Atmosphere
• Measurements of Thoron Concentration by Passive Cup Method and Its Application to Dose Assessment
• Suppression of Radon Exhalation from Soil by Covering with Clay-mixed Soil
• Estimation of Absorbed Dose Rates in Air Based on Flux Densities of Cosmic Ray Muons and Electrons on the Ground Level in Japan
• Trace Elements with Large Activation Cross Section in Concrete Materials in Japan
• Development of Three-Dimensional Numerical Model for ^Rn and its Decay Products Coupled with a Mesoscale Meteorological Model I. Model Description and Validation
• Influence of short-lived radon-222 daughters present in atmosphere on natural environmental gamma-radiation field.
• Measurements of Energy-Loss Cross Sections for 300, 400, and 500 eV Electrons in the Continuum of N_2

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