K-shell ionization of elements ₁₅P to ₂₈Ni for 0.4 to 3.8 MeV/amu ₅¹⁰B-ion bombardment

Description:

Article discussing K-shell ionization of elements ₁₅P to ₂₈Ni for 0.4 to 3.8 MeV/amu ₅¹⁰B-ion bombardment.

Creator(s):
Creation Date: August 1978
Partner(s):
UNT College of Arts and Sciences
Collection(s):
UNT Scholarly Works
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Total Uses: 39
Past 30 days: 4
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Creator (Author):
Monigold, G.

University of North Texas

Creator (Author):
Creator (Author):
Duggan, Jerome L.

University of North Texas

Creator (Author):
Rice, R.

University of North Texas

Creator (Author):
Toten, A.

University of North Texas

Creator (Author):
Mehta, R.

University of North Texas

Creator (Author):
Miller, P. D.

Oak Ridge National Laboratory

Publisher Info:
Publisher Name: American Physical Society
Place of Publication: [College Park, Maryland]
Date(s):
  • Creation: August 1978
Description:

Article discussing K-shell ionization of elements ₁₅P to ₂₈Ni for 0.4 to 3.8 MeV/amu ₅¹⁰B-ion bombardment.

Degree:
Department: Physics
Note:

Copyright 1978 American Physical Society. The following article appeared in Physical Review A, 18:2, http://link.aps.org/doi/10.1103/PhysRevA.18.380

Note:

Abstract: K-shell x-ray production cross sections, Kβ/Kα x-ray intensity ratios and Kα and Kβ x-ray energy shifts have been determined for thin solid targets of ₁₅P, ₁₉K, ₂₀Ca, ₂₁Sc, ₂₂Ti, ₂₃V, ₂₅Mn, ₂₆Fe, ₂₇Co, and ₂₈Ni for 4-38-MeV ₅¹⁰B ion bombardment. Comparisons of the cross sections were made to direct Coulomb ionization and electron-capture theories by means of fluorescence yields corrected for multiple-ionization effects. The dominant contribution to K-vacancy production for these projectile-target combinations is believed to be direct ionization. Electron capture is expected to be important only for the lighter target elements and then primarily at the higher velocities. The direct-ionization theories employed were the binary-encounter approximation and the plane-wave Born approximation (PWBA) both of which overestimated the experimental data especially at the lower incident ion velocities. The PWBA was modified for increased target-electron binding, Coulomb deflection of the incident ion, polarization of the target-electron wave functions due to the passage of the incident ion, and relativistic target-electron velocities. The experimental data were found to agree quite well with the sum of the theoretical predictions of the modified PWBA and electron capture.

Physical Description:

12 p.

Language(s):
Subject(s):
Keyword(s): K-shell | x-ray production | plane-wave Born approximation
Source: Physical Review A, 1978, College Park: American Physical Society, pp. 380-391
Partner:
UNT College of Arts and Sciences
Collection:
UNT Scholarly Works
Identifier:
  • DOI: 10.1103/PhysRevA.18.380
  • ARK: ark:/67531/metadc146599
Resource Type: Article
Format: Text
Rights:
Access: Public
Citation:
Publication Title: Physical Review A
Volume: 18
Issue: 2
Page Start: 380
Page End: 391
Peer Reviewed: Yes