Abstract
Energy loss and straggling of alpha particles of energy 6.05 and 8.78 MeV have been studied in pure argon with a silicon surface barrier detector; the effects of the detector window, source thickness etc. on the resolution and the calibration of the system (keV per channel) have been investigated in detail. In the case of low energy loss, the experimental results have been compared with the theoretical Vavilov distribution; for high energy loss, agreement with the theory of Tschalär has been discussed. The stopping cross section of argon, having been deduced from the experimental d E/d x values, has been compared with the existing results and discussed in the light of the theories of Bonderup, Lindhard and Winter. Finally, L( x)'s as defined by Lindhard and co-workers have been calculated and compared with the universal dependence proposed; from the present experimental results the mean excitation potential, I, for argon has been found to be 180 eV.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
