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Pregled bibliografske jedinice broj: 325803

Two-photon decay in silver and hafnium atoms


Ilakovac, Ksenofont; Horvat, Vladimir; Krečak, Zvonimir; Jerbić-Zorc, Gorjana; Ilakovac, Neva; Bokulić, Tomislav
Two-photon decay in silver and hafnium atoms // Physical Review A, 46 (1992), 1; 132-141 (međunarodna recenzija, članak, znanstveni)


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Naslov
Two-photon decay in silver and hafnium atoms

Autori
Ilakovac, Ksenofont ; Horvat, Vladimir ; Krečak, Zvonimir ; Jerbić-Zorc, Gorjana ; Ilakovac, Neva ; Bokulić, Tomislav

Izvornik
Physical Review A (1050-2947) 46 (1992), 1; 132-141

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
two-photon decay; transition probabilities

Sažetak
The decay of silver and hafnium atoms with a vacancy in the K shell by the emission of photon pairs which continuously share the transition energy was studied. Radioactive decay of 109Cd and of 179Ta was used to generate K-shell vacancy states in silver and hafnium atoms, respectively. A pair of germanium detectors in a 180° geometry and a fast-slow coincidence system with a (128×512×512)-channel three-parameter pulse-height analyzer were used in the measurements. Two-dimensional spectra of numbers of events as functions of amplitudes of coincident pulses from the two detectors were analyzed. Surface fitting of two-dimensional spectra and curve fitting of sum spectra were applied to deduce the number of events. The differential transition probabilities of 2s→ 1s, 3s→ 1s, 3d→ 1s, and 4sd→ 1s two-photon decay per decay of a K-shell vacancy have been determined. For silver they are compared with the results of relativistic self-consistent-field calculations of Mu and Crasemann [Phys. Rev. A 38, 4585 (1988)] and of Tong, Li, Kissel, and Pratt [Phys. Rev. A 42, 1442 (1990)]. The results for silver and hafnium are compared with the results of nonrelativistic calculations for hydrogenic silver and hafnium ions. The 3d→ 1s two-photon decays show the resonance effect, in accordance with the theoretical predictions.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Ustanove:
Prirodoslovno-matematički fakultet, Zagreb


Citiraj ovu publikaciju

Ilakovac, Ksenofont; Horvat, Vladimir; Krečak, Zvonimir; Jerbić-Zorc, Gorjana; Ilakovac, Neva; Bokulić, Tomislav
Two-photon decay in silver and hafnium atoms // Physical Review A, 46 (1992), 1; 132-141 (međunarodna recenzija, članak, znanstveni)
Ilakovac, K., Horvat, V., Krečak, Z., Jerbić-Zorc, G., Ilakovac, N. & Bokulić, T. (1992) Two-photon decay in silver and hafnium atoms. Physical Review A, 46 (1), 132-141.
@article{article, year = {1992}, pages = {132-141}, keywords = {two-photon decay, transition probabilities}, journal = {Physical Review A}, volume = {46}, number = {1}, issn = {1050-2947}, title = {Two-photon decay in silver and hafnium atoms}, keyword = {two-photon decay, transition probabilities} }
@article{article, year = {1992}, pages = {132-141}, keywords = {two-photon decay, transition probabilities}, journal = {Physical Review A}, volume = {46}, number = {1}, issn = {1050-2947}, title = {Two-photon decay in silver and hafnium atoms}, keyword = {two-photon decay, transition probabilities} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus





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