Isotopic effects in the energy spectrum of molecules sputtered from carbon

Journal Article · Sat Jan 01 00:00:00 EST 2011 · Journal of Nuclear Materials

DOI:https://doi.org/10.1016/j.jnucmat.2010.07.046· OSTI ID:1036644

Reinhold, Carlos O ^[1]; Krstic, Predrag S ^[1]

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1. ORNL

We investigate the translational and rovibrational energy spectra of sputtered molecules resulting from bombardment of hydrogen-supersaturated carbon by hydrogen isotopes H, D, and T at energies of 1-20 eV using classical molecular dynamics simulations. The chemical erosion yields and mass spectra of sputtered molecules are found to be quite sensitive to the isotope mass of the impinging projectiles. However, the mean translational and rovibrational energies of the sputtered molecules are found to be nearly mass independent especially near the sputtering thresholds.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1036644
• Journal Information: Journal of Nuclear Materials, Vol. 415, Issue 1; ISSN 0022-3115
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON
ENERGY SPECTRA
HYDROGEN ISOTOPES
ISOTOPE EFFECTS
MASS SPECTRA
PROJECTILES
SPUTTERING