Computer calculation of positron diffusion and annihilation in atomic hydrogen |
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Authors: | K V Sinha P S Grover |
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Institution: | (1) Department of Physics and Astrophysics, University of Delhi, 110 007 Delhi, India;(2) Department of Computer Science, University of Delhi, 110 007 Delhi, India |
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Abstract: | We have performed a computer-aided analysis of position behaviour in atomic hydrogen. Effect of electric, magnetic and temperature
fields on the diffusion and annihilation of positrons has been studied. Electric field is varied over a wide range of 0–200
V cm−1 amagat−1, magnetic field over 0–30 kG while the temperature range considered is 300–10,000°K. The position decay rate decreases with
electric and temperature fields but increases with magnetic fields. However, the effect of these fields is reversed on the
diffusion coefficient. |
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Keywords: | Positron diffusion annihilation atomic hydrogen |
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