Lack of progress on waveshifting fluors for use in or with polystyrene scintillators in high-energy particle detection
- Philadelphia College of Pharmacy Science, 600 S. 43rd St., Phila., Pennsylvania 19104-4495 (United States)
- Massachusetts College of Pharmacy Allied Health Sciences, 179 Longwood Ave., Boston, Massachusetts 02115-5804 (United States)
A number of original proton-transfer fluors were prepared as shifters for green-emitting scintillating fibers of multi-meter lengths. Quantum efficiencies up to 0.52 are reported for the new fluors which showed emission maxima between 478 and 612 nm. None proved clearly superior to 3HF, the standard fluor for scintillating fibers whose light is measured with PM tubes. For the current goal of half-meter length waveshifting fibers with blue-green emission for use with blue-violet-emitting polystyrene tiles, a number of fluors related to TPBD and Bis-MSB were prepared bearing dialkylamino auxofluors. Some of these failed to fluoresce, and those that did were photochemically unstable. A proposal was made on some original conjugated polyenes for waveshifting fibers. In general, accurate predictions could be made on excitation and emission wavelengths, while light output, decay time, photochemical stability and radiation hardness are more difficult targets. {copyright} {ital 1998 American Institute of Physics.}
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 337477
- Report Number(s):
- CONF-9711182-; ISSN 0094-243X; TRN: 99:005436
- Journal Information:
- AIP Conference Proceedings, Vol. 450, Issue 1; Conference: SciFi `97: workshop on scintillating fiber detectors, Notre Dame, IN (United States), 2-6 Nov 1997; Other Information: PBD: Nov 1998
- Country of Publication:
- United States
- Language:
- English
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