L{sub 3}-subshell alignment of Au and Bi in collisions with 12-55-MeV carbon ions

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.062709· OSTI ID:21437900

Kumar, Ajay; Choudhury, R K ^[1]; Agnihotri, A N; Chatterjee, S; Misra, D; Tribedi, L C ^[2]; Kasthurirangan, S ^[2]; Sarkadi, L ^[3]

---

1. Nuclear Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085 (India)
2. Tata Institute of Fundamental Research, Colaba, Mumbai 400 005 (India)
3. Institute of Nuclear Research of the Hungarian Academy of Sciences (ATOMKI), Post Office Box 51, H-4001 Debrecen (Hungary)

Angular distribution of the L x-ray intensities in Au and Bi induced by 12-55-MeV carbon ions has been measured. The L{sub {alpha}}, L{sub {beta}}, and L{sub {gamma}} x-ray intensities were found to be isotropic within experimental uncertainty. The alignment parameter A{sub 20} of the L{sub 3} (2p{sub 3/2}) subshell was deduced from the measured anisotropy parameter {beta} value of the well-resolved L{sub l} line, obtained from the angular distribution of the I{sub Ll}/I{sub L{alpha}}, I{sub Ll}/I{sub L{beta}}, and I{sub Ll}/I{sub L{gamma}} x-ray intensity ratios. The measured A{sub 20} values have been compared with those obtained using theoretical models that involve the plane-wave Born approximation; projectile's energy loss and its Coulomb deflection from the straight-line trajectory, perturbed-stationary-state, and relativistic effects (ECPSSR); and ECPSSR with the intrashell effect.

• OSTI ID: 21437900
• Journal Information: Physical Review. A, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevA.81.062709; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
ANISOTROPY
BISMUTH
BORN APPROXIMATION
CARBON IONS
ENERGY LOSSES
GOLD
ION-ATOM COLLISIONS
L SHELL
MEV RANGE
RELATIVISTIC RANGE
X RADIATION
APPROXIMATIONS
ATOM COLLISIONS
CALCULATION METHODS
CHARGED PARTICLES
COLLISIONS
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
ION COLLISIONS
IONIZING RADIATIONS
IONS
LOSSES
METALS
RADIATIONS
TRANSITION ELEMENTS