Accession Number : AD0442075


Title :   RELATIVE STOPPING POWER OF SOME METALLIC ELEMENTS FOR 28.7-MEV PROTONS,


Corporate Author : CALIFORNIA UNIV LOS ANGELES


Personal Author(s) : Nakano,George H ; MacKenzie,K R ; Bichsel,Hans


Report Date : 08 May 1963


Pagination or Media Count : 3


Abstract : The stopping power of Be, Ti, V, Co, Ni, Cu, Ag, Ta, W, Ir, and Au were compared with Al at an average proton energy of 28.7 MeV. Accuracies of 0.25% were obtained by using a scattering foil and subsequent collimation to produce two identical beams. The energy and intensity were continually monitored in one beam. Comparisons were made in the other by rotating the samples to produce small changes in thickness. Anomalously high stopping powers were observed in the transition region where the 3d shell is being filled inside a completed s shell. (Author)


Descriptors :   *PROTON BEAMS , ALUMINUM , PROTON BOMBARDMENT , BERYLLIUM , TITANIUM , VANADIUM , NICKEL , COPPER , SILVER , TANTALUM , TUNGSTEN , IRIDIUM , IONIZATION CHAMBERS


Distribution Statement : APPROVED FOR PUBLIC RELEASE