Discrimination of Charged Particles of Different Masses by an Improved Method of Grain-Counting

Journal Article · Mon Oct 15 04:00:00 EDT 1962 · Journal of the Physical Society of Japan

DOI:https://doi.org/10.1143/JPSJ.17.1523· OSTI ID:4769459

Yamanouchi, Mikio

S>In place of the usual method of grain counting in which all the silver grains in a certain length from the end of a track are counted, a new method has been developed by counting only the grains excepting those in the last fifty microns of the track, since near the end of a track the apparent number of grains is not proportional to the energy loss. The ratio of the average number of grains in equal lengths of track-segments of deuterons and protons was found to be as high as 1.28 plus or minus 0.03, in contrast to the values ranging from 1.10 to 1.17 hitherto reported. The method has been applied to the discrimination of photodeuterons from photoprotons. (auth)

• Research Organization: Tokyo Univ. of Education
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-005110
• OSTI ID: 4769459
• Journal Information: Journal of the Physical Society of Japan, Journal Name: Journal of the Physical Society of Japan Journal Issue: 10 Vol. 17; ISSN 0031-9015
• Publisher: Physical Society of Japan
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHARGED PARTICLES
DEUTERONS
ENERGY
GRAIN SIZE
LOSSES
MASS
NUCLEAR EMULSIONS
PARTICLE TRACKS
PHOTONS
PHYSICS
PROTONS
SILVER