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Titolo:
PRESSURE-DEPENDENT DECAY OF THE 3P(5)4P CONFIGURATION IN ARGON EXCITED BY ALPHA-PARTICLES AND PROTONS
Autore:
AHO K; LINDBLOM P; OLSSON T; SOLIN O;
Indirizzi:
ABO AKAD,DEPT PHYS FIN-20500 TURKU 50 FINLAND MULTICHANNEL INSTRUMENTS AB S-12832 SKARPNACK SWEDEN ROYAL INST TECHNOL,DEPT PHYS 1 S-10044 STOCKHOLM SWEDEN ABO AKAD,ACCELERATOR LAB FIN-20500 TURKU 50 FINLAND
Titolo Testata:
Journal of physics. B, Atomic molecular and optical physics (Print)
fascicolo: 18, volume: 31, anno: 1998,
pagine: 4191 - 4203
SICI:
0953-4075(1998)31:18<4191:PDOT3C>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
EMISSION; BEAM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
K. Aho et al., "PRESSURE-DEPENDENT DECAY OF THE 3P(5)4P CONFIGURATION IN ARGON EXCITED BY ALPHA-PARTICLES AND PROTONS", Journal of physics. B, Atomic molecular and optical physics (Print), 31(18), 1998, pp. 4191-4203

Abstract

The pressure dependence of the decay of the Ar(3p(5)4p) states excited by an energetic pulsed ion beam was studied in the pressure range 5-1600 kPa. All of the ten 3p(5)4p states have a fast build-up componentand, with the exception of the 2p(1) state, two decay components: onefast (3-18 ns at 100 kPa) and one slow (20-300 ns at 100 kPa). Extrapolation of the fast decay rates to zero pressure yields the natural lifetimes of the states to values within the accuracy of the measurements. Most of the slow decays show nonlinear pressure dependencies. This nonlinearity is probably due to several competing processes. The slow decay of the 2p(3)-2p(5) states can be associated with the fast decay of the 2p(2) state. The pressure dependency of the 2p(2) state is considerably different from the other states within the 3p54p configuration. It is concluded that the build-up of the 2p(2) state is associated with dissociative recombination of Ar-2(+) and Ar-3(2+) molecules.

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Documento generato il 02/04/20 alle ore 05:17:30