LIGHT-EMISSION FROM A NACL TARGET BOMBARDED BY AR-IONS AND THE MECHANISM FOR THE BEAM ENERGY-DEPENDENCE OF THE LIGHT YIELD FROM AG-ATOMS AND NA-ATOMS
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Light emitted by Na atoms following the bombardment of a NaCl target with Ar ions has been studied. Light yields that include contributions from both displaced surface and sputtered atoms have been obtained as a function of incident ion beam kinetic energy and with different Ar ion charge states. At a bombarding kinetic energy of 48 keV, we find that the light yield increases as the incident ion charge state increases. The light yield was found to increase and then slowly decrease as the ion beam kinetic energy changed from 8 to 99 keV. Sputtering calculations have been carried out for both NaCl and Ag targets to investigate possible mechanisms for explaining the observed light yield in these two system s as a function of the incident beam kinetic energy. 1994.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
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ASSAD, C., & TRIBBLE, R. E.
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