Studies on nuclear emulstions with polyvinyl alcohol. I. Preparation and properties of PVA nuclear emulsions for particle-track research (in Japanese)
Neutral and ammoniacal silver bromide emulsions with polyvinyl alcohol as protective colloid were prepared on glass plates, and their properties were studied. Tracks of alpha particles and protons form in these emulsions without fog increase, the former being located very close to the surface. The average track length is 33 mu for alpha particles and 400 mu for protons. Granular or clumping particles, which were attributed to collective radiation effects, were found in irradiated emulsions near the emulsion-glass interface. Hypersensitization by 6% triethanolamine solution was successful, whereas heating or gold chloride addition resulted in fog increase. However, 6- nitrobenzimidazole was found to reduce fog. Fading of latent alpha tracks was negligible, even for development 30 days after exposure. Directional alpha tracks can be detected using emulsions spread on a cylinder. (D.L.C.)
- NSA Number:
- NSA-15-011857
- OSTI ID:
- 4071198
- Journal Information:
- Tokyo Kogyo Shikenjo Hokoku (Journal of the National Chemical Laboratory for Industry), Journal Name: Tokyo Kogyo Shikenjo Hokoku (Journal of the National Chemical Laboratory for Industry) Vol. 56; ISSN 0371-8808
- Country of Publication:
- Japan
- Language:
- Japanese
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Related Subjects
AMINES
AMMONIA
BACKGROUND
BENZENE
COLLOIDS
CYLINDERS
DETECTION
ETHANOL
GLASS
GOLD CHLORIDES
HEATING
NUCLEAR EMULSIONS
ORGANIC NITROGEN COMPOUNDS
PARTICLE TRACKS
PARTICLES
PHYSICS
PLATES
POLYMERS
PREPARATION
PROTONS
RADIATION EFFECTS
SENSITIVITY
SILVER BROMIDES
SOLUTIONS
STABILITY
SURFACES
VINYL RADICALS