INVESTIGATION OF THE LUMINESCENCE CAPABILITY OF ANTHRACENE-POLYSTYROL SCINTILLATORS IN DEPENDENCE ON THE PREPARATION CONDITIONS

Journal Article · Thu Dec 01 04:00:00 EST 1960 · Kernenergie (East Germany)

OSTI ID:4026934

Kunze, J; Rexer, E

Organic scintillators with polystyrol base and anthracene additions have been reported in which the purity of the initial materials. the polymerization temperature, and the polymerization species were varied during their preparation. Whereas in organic crystals the highest purity leads to the highest yield, the luminescence capabilities in solid organic solutions is not changed when the mass of organic impurities ranges between approx equal 1 and 10/sup -1/% in the monostyrol and between 1 and 10/sup -2/% in anthracene. Small masses of water or oxygen reduce the luminescence yield. In contrast with values obtained in samples polymerized with O.5% benzoyl peroxide as catalyst, the luminescence yield of pure thermal polymerizate amounts to only- 80 to 90%. By the action of gamma rays, polymerized samples gave light yields of only 20% of the yield of the best thermal polymerizates. The luminescence capability of the scintillators is dependent on the polymerization temperature. The best light yield for a given anthracene concentration and the Polymerization time used was obtained at a polvmerization temperature of 140 to 150 deg C. (tr-auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-15-016229
• OSTI ID: 4026934
• Journal Information: Kernenergie (East Germany), Journal Name: Kernenergie (East Germany) Vol. Vol: 3; ISSN KERNA
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

ANTHRACENE
CATALYSIS
COMPOUNDS
CRYSTALS
EFFICIENCY
GAMMA RADIATION
IMPURITIES
LIGHT
LUMINESCENCE
MASS
OXYGEN
PHOSPHORS
PHYSICS
POLYMERIZATION
POLYSTYRENE
PREPARATION
QUANTITY RATIO
SCINTILLATIONS
SOLIDS
SOLUTIONS
TEMPERATURE
VARIATIONS
WATER