Griffith, J. E. and Weller, R. A. and Seiberling, L. E. and Tombrello, T. A. (1980) Sputtering of uranium tetrafluoride in the electronic stopping region. Radiation Effects, 51 (3-4). pp. 223-232. ISSN 0033-7579. doi:10.1080/00337578008210004. https://resolver.caltech.edu/CaltechAUTHORS:20141103-160135719
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Abstract
We have studied the sputtering of ^(235)U from UF_4 surfaces by ions with energies in the electronic stopping region. The observed sputtering yields are very large and are associated with the electronic stopping power. Measured yields produced by ^(19)F ions at energies ranging from 1/16 MeV/amu to 1½ Mev/amu exhibit a peak of S = 7.1 ± 1.5 for ^(19)F^(+3) at an energy of ¼ MeV/amu. The data suggest that the yield depends on the charge state of the incident ion. The yields are independent of target temperature in the range between 70°C and 170°C. The energy spectrum of the neutral component of the sputtered particles produced by ¼ MeV/amu ^(19)F^(+2) has been measured with the mechanical time-of-flight spectrometer developed by Weller and Tombrello. The spectrometer data indicate that a large fraction of the sputtered particles is charged. We also describe the behavior of high energy sputtering of UF_4 by ^(4)He, ^(16)O and ^(20)Ne. Experiments with ^(16)O and ^(20)Ne beams at 100 keV show that the Sigmund theory adequately describes the sputtering of UF_4 in the nuclear stopping region.
| Item Type: | Article | |||||||||
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| Additional Information: | © 1980 Gordon and Breach Science Publishers, Inc. Received March 4, 1980. The authors wish to thank D. S. Burnett, J. W. Mayer and J. M. Poate for many useful suggestions. | |||||||||
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| Issue or Number: | 3-4 | |||||||||
| DOI: | 10.1080/00337578008210004 | |||||||||
| Record Number: | CaltechAUTHORS:20141103-160135719 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20141103-160135719 | |||||||||
| Official Citation: | Griffith, J. E., Weller, R. A., Seiberling, L. E., & Tombrello, T. A. (1980). Sputtering of uranium tetrafluoride in the electronic stopping region. Radiation Effects, 51(3-4), 223-231. doi: 10.1080/00337578008210004 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 51207 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | INVALID USER | |||||||||
| Deposited On: | 04 Nov 2014 18:02 | |||||||||
| Last Modified: | 10 Nov 2021 19:07 |
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