MOULDED POLYSTYRENE SCINTILLATORS
Journal Article
·
· Appl. Sci. Research
OSTI ID:4306022
ABS>Luminescent solid solutions of 1,4-diphenyl-butadiene (DPB), 1,5- diphenyl-hexatriene (DPH), and 1,1,4,4tetraphenyl-butadiene (TPB) in polystyrene were made by a process of slow injection molding. The DPB and DPH solutions thus prepared give a much larger fluorescent light output than solutions polymerized in bulk. The fluorescence yield of a DPB-solution approaches that of TPB plastic. Differences are also observed in the fluorescence spectra of molded and polymerized DPB and DPH plastics. Little difference is observed in the fluorescence of molded and polymerized TPB plastics. The poor fluorescence of the polymerized diphenyl-polyene solutions can be explained by assuming a chemical reaction in the polyene chain during the polymerization which cannot take place in the TPB solution, where four phenyl groups enclose the butadiene core. (auth)
- Research Organization:
- Rijksuniversiteit Groningen, Netherlands
- NSA Number:
- NSA-12-016568
- OSTI ID:
- 4306022
- Journal Information:
- Appl. Sci. Research, Journal Name: Appl. Sci. Research Vol. Vol: B3
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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