The compton defect in ammonia as observed using 35 keV incident electrons

✍ Scribed by Azzedine Lahmam Bennani; Alain Duguet; H.F. Wellestein

• Publisher: Elsevier Science
• Year: 1979
• Tongue: English
• Weight: 348 KB
• Volume: 60
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(79)80599-0

✦ Synopsis

Using a 35 keV electron beam incident on NHa, precision m easurements of the energy loss position of the Compton peak have been performed. The observed Compton peak is found to be at larger energy losses than predicted fox an electron scattered through the same angle from a stationary unbound electron. This defect has been studied for the momentum transfer range 0.5 au < K < 11 au, and is shown to be nonzero even at large K values. A sudden krease in the magnitude of the defect is observed when the inner ekctrons start contributing to the maximum of tke Compton profite. This couId suwt the possibility that the defect is related to the binding energies of the target electrons.