Accession Number:

AD0442075

Title:

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

Descriptive Note:

Corporate Author:

CALIFORNIA UNIV LOS ANGELES

Personal Author(s):

• Nakano,George H.
• MacKenzie,K. R.
• Bichsel,Hans

Report Date:

1963-05-08

Pagination or Media Count:

3.0

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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE