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The total absorption coefficient of the negative hydrogen ion

1975; IOP Publishing; Volume: 8; Issue: 3 Linguagem: Inglês

10.1088/0022-3700/8/3/006

1747-3721

K L Bell, A E Kingston, W A McIlveen,

Quantum and Classical Electrodynamics

The free-free absorption coefficient of the negative hydrogen ion is calculated in both the length and velocity formulations using the method of polarized orbitals to describe the free electron. The bound-free cross section of Bell and Kingston (1967) is converted to an absorption coefficient and combined with the present free-free results. Comparison with other calculations and the use of certain oscillator strength sum rules suggests that the total H- absorption coefficient values of the present paper are accurate to better than 10%.