Simultaneous measurement of the average ion-induced electron emission yield and the mean charge for isotachic ions in carbon foils

Description:

Article discussing the simultaneous measurement of the average ion-induced electron emission yield and the mean charge for isotachic ions in carbon foils.

Creator(s):
Creation Date: February 1997
Partner(s):
UNT College of Arts and Sciences
Collection(s):
UNT Scholarly Works
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Total Uses: 46
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Creator (Author):
Arrale, A. M.

Eaton Corporatioin

Creator (Author):
Zhao, Z. Y.

University of North Texas

Creator (Author):
Kirchhoff, J. F.

University of North Texas

Creator (Author):
Weathers, Duncan L.

University of North Texas

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Creator (Author):
Matteson, Samuel E.

University of North Texas

Publisher Info:
Publisher Name: American Physical Society
Place of Publication: [College Park, Maryland]
Date(s):
  • Creation: February 1997
Description:

Article discussing the simultaneous measurement of the average ion-induced electron emission yield and the mean charge for isotachic ions in carbon foils.

Degree:
Department: Physics
Note:

Copyright 1997 American Physical Society. The following article appeared in Physical Review A, 55:2, http://link.aps.org/doi/10.1103/PhysRevA.55.1119

Note:

Abstract: Knowledge of the incident ion's atomic number (Z₁) dependence of ion-induced electron emission yields can be the basis for a general understanding of ion-atom interaction phenomena and, in particular, for the design of Z₁-sensitive detectors that could be useful, for example, in the separation of isobars in accelerator mass spectrometry. The Z₁ dependence of ion-induced electron emission yields, y, has been investigating using heavy ions C³⁺, O³⁺, F³⁺, Na³⁺, Al³⁺, Si³⁺, P³⁺, S³⁺, Cl³⁺, K³⁺, Ti³⁺, Cr³⁺, Mn⁴⁺, Fe⁴⁺, Co⁴⁺, Ni⁴⁺, Cu⁴⁺, Ga⁴⁺, As⁵⁺, Br⁵⁺, Ru⁷⁺, Ag⁷⁺, Sn⁷⁺, and I⁸⁺ of identical velocity (v = 2v₀, where v₀ is the Bohr velocity) normally incident on 50 μg/cm² sputter-cleaned carbon foils. Measured yields as a function of Z₁ reveal an oscillatory behavior with pronounced maxima and minima. Contrary to previously reported yields that assumed to monotonically increasing empirical mean charge state for the exiting ion, the present work indicates the Z₁ oscillations in the experimentally measured yields, a fact masked in previous work. The strong Z₁ oscillations can only be observed by simultaneous measurement of the yield and the mean charge state.

Physical Description:

5 p.

Language(s):
Subject(s):
Keyword(s): electron emission | isotachic ions | carbon foils
Source: Physical Review A, 1997, College Park: American Physical Society, pp. 1119-1123
Partner:
UNT College of Arts and Sciences
Collection:
UNT Scholarly Works
Identifier:
  • DOI: 10.1103/PhysRevA.55.1119 |
  • ARK: ark:/67531/metadc146596
Resource Type: Article
Format: Text
Rights:
Access: Public
Citation:
Publication Title: Physical Review A
Volume: 55
Issue: 2
Page Start: 1119
Page End: 1123
Peer Reviewed: Yes