Pregled bibliografske jedinice broj: 881907
Relativistic effects in double ionization of Helium via Compton scattering
Relativistic effects in double ionization of Helium via Compton scattering // Radiation physics and chemistry, 137 (2017), 3-6 doi:10.1016/j.radphyschem.2016.10.003 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 881907 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Relativistic effects in double ionization of Helium via Compton scattering
Autori
Kaliman, Zoran ; Pisk, Krunoslav
Izvornik
Radiation physics and chemistry (0969-806X) 137
(2017);
3-6
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Compton scattering ; Double ionization ; Relativistic effects ; Helium
Sažetak
In this article we present the relativistic calculations, based on the QED theory, for double ionization of helium by the Compton scattering. In particular, we calculate the contribution of the spin–flip amplitude to the total cross section. Due to this amplitude the final triplet spin state of the ejected electrons is possible. In the calculations based on the non–relativistic A2 term of the electron–photon interaction only the singlet spin state for the final electrons is allowed. We further assume the shake-off mechanism for process of double ionization. For the ground state of helium we use both the non–correlated and highly correlated wave function. We also discuss a degree of the scattered photon polarization in correlation with the formation of spin triplet state. Our calculations cover the photon impact energy range from 150 to 1000 keV.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Ustanove:
Institut "Ruđer Bošković", Zagreb,
Sveučilište u Rijeci - Odjel za fiziku
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
