X-ray production in heavy ion-atom collisions: 4fsigma electron promotion
Conference
·
OSTI ID:4116465
- eds.
A systematic study is made of x-ray production in ion-atom collisions for electron promotion by 4f sigma molecular orbitals. L x-ray production cross sections are presented for P$sup +$, S$sup +$, Cl$sup +$, Ar$sup +$ and K$sup +$ projectiles incident on Ar gas targets for projectile energies between 15 and 200 keV. In addition, high resolution L x-ray spectral measurements for Ar$sup +$$Yields$ Ar collisions are presented. Average values of the fluorescence yield and total L-shell ionization cross sections are determined. A dramatic Z dependence observed in the x-ray production cross section is attributed to changes in fluorescence yield. New theoretical calculations of argon L fluorescence yield are found to be in reasonable agreement with the experiment for the Ar$sup +$ $Yields$ Ar case. (auth)
- Research Organization:
- Univ. of California, Livermore; North Texas State Univ., Denton (USA)
- NSA Number:
- NSA-33-013009
- OSTI ID:
- 4116465
- Report Number(s):
- CONF-741040--P1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
*ARSENIC IONS-- ION-ATOM COLLISIONS
*CHLORINE IONS-- ION-ATOM COLLISIONS
*PHOSPHORUS IONS-- ION-ATOM COLLISIONS
*POTASSIUM IONS-- ION-ATOM COLLISIONS
*SULFUR IONS-- ION-ATOM COLLISIONS
640304* --Physics Research--Atomic
Molecular & Chemical Physics--Collision Phenomena
CROSS SECTIONS
ELECTRONIC STRUCTURE
FLUORESCENCE
IONIZATION
KEV RANGE 10-100
KEV RANGE 100-1000
N60400* --Physics (Atomic & Molecular)--Collision Phenomena
TOTAL CROSS SECTIONS
X RADIATION
*CHLORINE IONS-- ION-ATOM COLLISIONS
*PHOSPHORUS IONS-- ION-ATOM COLLISIONS
*POTASSIUM IONS-- ION-ATOM COLLISIONS
*SULFUR IONS-- ION-ATOM COLLISIONS
640304* --Physics Research--Atomic
Molecular & Chemical Physics--Collision Phenomena
CROSS SECTIONS
ELECTRONIC STRUCTURE
FLUORESCENCE
IONIZATION
KEV RANGE 10-100
KEV RANGE 100-1000
N60400* --Physics (Atomic & Molecular)--Collision Phenomena
TOTAL CROSS SECTIONS
X RADIATION