Optical observation of self-quenching streamers by [alpha]- and [beta]-rays

Conference · Mon Aug 01 04:00:00 EDT 1994 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6883732

Nohtomi, A; Narita, K; Uozumi, Y; Sakae, T; Matoba, M ^[1]; Koori, N ^[2]; Kume, H; Nakamura, H ^[3]

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1. Kyushu Univ. (Japan). Dept. of Nuclear Engineering
2. Univ. of Tokushima (Japan). Faculty of Integrated Arts and Sciences
3. Hamamatsu Photonics K.K. (Japan)

Optical images of self-quenching streamers (SQSs) in a gas counter have been observed for [alpha]- and [beta]-ray, incident charged particles. Individual images of the streamers were obtained by using an image-intensifier system with a gating function. The observation was performed from the axial direction of the gas counter used. For a-ray irradiation, streamers develop only in two specific directions orienting primary-ionization tracks formed by [alpha]-rays. On the other hand, for [beta]-ray, streamers grow in various directions; obtained images are similar to those for X-ray. On the basis of the observation, SQS-formation mechanisms by different sorts of ionizing radiation are discussed. A possible mechanism of ''Primary-Ionization Track ORiented (PRITOR) type SQS'' induced by [alpha]-ray is proposed.

• OSTI ID: 6883732
• Report Number(s): CONF-931051--
• Conference Information: Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 41:4Pt1
• Country of Publication: United States
• Language: English

Related Subjects

440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALPHA PARTICLES
BETA PARTICLES
CHARGED PARTICLES
DATA
DYNAMICS
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
GAS TRACK DETECTORS
HIGH ENERGY PHYSICS
IMAGE INTENSIFIERS
INFORMATION
IONIZATION
IONIZING RADIATIONS
MEASURING INSTRUMENTS
MECHANICS
NUMERICAL DATA
OPERATION
PHOTOIONIZATION
PHYSICS
RADIATION DETECTORS
RADIATIONS
SPARK CHAMBERS
STREAMER SPARK CHAMBERS
VISIBLE RADIATION
X RADIATION