Deexcitation of Rydberg states of He by He, Ne, Ar, Kr, and Xe
Journal Article
·
· Phys. Rev., A; (United States)
The total quenching cross sections for He(n /sup 1,3/S)(2 < or = n < or = 11) states by thermal collisions (600(+200,-100) K) with He, Ne, Ar, Kr, and Xe have been measured. The main quenching mechanism is attributed to Penning ionization for lower n, and collisional angular-momentum transfer for highly excited states. Measured cross sections are of the order of 10/sup -15/ to 10/sup -14/ cm/sup 2/. The values for higher n states are much smaller than the geometrical cross section; this is explained by a relatively large energy spread between the S state and l > or = 1 states.
- Research Organization:
- Physics Department, Schuster Laboratory, University of Manchester, Manchester M13 9PL, England
- OSTI ID:
- 5190302
- Journal Information:
- Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 22:3; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR MOMENTUM TRANSFER
ARGON
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
DE-EXCITATION
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FLUIDS
HELIUM
IONIZATION
KRYPTON
MOMENTUM TRANSFER
NEON
NONMETALS
PENNING EFFECT
RARE GASES
XENON
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR MOMENTUM TRANSFER
ARGON
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
DE-EXCITATION
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FLUIDS
HELIUM
IONIZATION
KRYPTON
MOMENTUM TRANSFER
NEON
NONMETALS
PENNING EFFECT
RARE GASES
XENON