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Proceedings Paper

Black-body induced ionization rate of Rydberg states in helium
Author(s): I. L. Glukhov; V. D. Ovsiannikov
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Paper Abstract

The probabilities of photoionization by the black-body radiation (BBR) were calculated for singlet and triplet S-, P-, and D-Rydberg states of a neutral helium atom. The numerical values obtained on the basis of the Fues model potential for states with the principal quantum number n ranging from 8 to 45 were used to derive a formula which not only reproduces the asymptotical behavior of the ionization rate for n → ∞ but also describes exactly its maximums. The n-independent constants in this formula are determined by a third order polynomial in powers of the absolute temperature with coefficients derived from the calculated data for the temperature range from 200 to 2000 K.

Paper Details

Date Published: 19 July 2007
PDF: 5 pages
Proc. SPIE 6726, ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information, 67261F (19 July 2007); doi: 10.1117/12.751816
Show Author Affiliations
I. L. Glukhov, Voronezh State Univ. (Russia)
V. D. Ovsiannikov, Voronezh State Univ. (Russia)


Published in SPIE Proceedings Vol. 6726:
ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information

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