Radiation effects on wavelength shifting fibers used with liquid scintillators

Conference · Mon Jun 01 00:00:00 EDT 1992

OSTI ID:10147112

Ables, E; Armatis, P; Bionta, R; Britt, H; Clamp, O; Cochran, C; Graham, G; Lowry, M; Masquelier, D; Skulina, K; Wuest, C ^[1]; Bolen, L; Cremaldi, L; Harper, S; Moore, B; Quinn, B; Reidy, J; Zhou, J ^[2]; Croft, L; Piercey, R ^[3] ; Bauer, M L; Bishop, B L; Cohn, H O; Gabriel, T A; Gordeev, A; Kamyshkov, Yu; Lillei, R A; Plasil, F; Read, K; Rennich, M J; Savin, A; Shmakov, K; Singeltary, B H; Smirnov, A; Tarkovsky, E; Todd, R A; Young, K G ^[4]; Berridge, S C; Bugg, W M; Handler, T; Pisharody, M ^[5]; Aziz, T; Banerjee, S; Chendvankar, S R; Ganfuli, S N; Malhotra, K; Mazumdar, K; Raghavan, R; Shankar, K; Sudhakar, K; Tonwar, S C ^[6]; Arefiev, A; Baranov, O; Efremenko, Yu; Gorodkov, Yu; Malinin, A; Nikitin, A; Markizov, V; Onoprienko, D; Rozjkov, A; Shoumilov, E; Shoutko, V ^[7]

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1. Lawrence Livermore National Lab., CA (United States)
2. Mississippi Univ., University, MS (United States)
3. Mississippi State Univ., MS (United States)
4. Oak Ridge National Lab., TN (United States)
5. Tennessee Univ., Knoxville, TN (United States)
6. Tata Inst. of Fundamental Research, Bombay (India)
7. Institute for Theoretical and Experimental Research, Moscow (Russia)

The chemical compatibility of wave length shifting fibers with several liquid scintillators has been investigated. Based on systematic characterization of the behavior of the BC-517 family, a time of life of 70{endash}450 years was estimated for the polystyrene based wave length shifting fiber in BC-517P scintillator. WLS (wavelength shifting) fibers irradiated continuously to a dose of 6.4 Mrads (at .377Mrad/hr of Co-60) were observed to decrease from 100% to 5% transmission; however, after 100 hours of annealing, the transmission increased to 90%. Geant simulations of a simplified calorimeter located behind a BaF2 electromagnetic calorimeter for the GEM detector at SSC showed that the constant term in the energy resolution will change from 1.8 to 2.9 in five years at 10{star}{star}34 luminosity for psuedorapidity eta=3.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10147112
• Report Number(s): CONF-9204138-2; ON: DE92013871
• Resource Relation: Conference: International conference of radiation-tolerant scintillators and detectors,Tallahassee, FL (United States),28 Apr - 2 May 1992; Other Information: PBD: [1992]
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
LIQUID SCINTILLATORS
COMPATIBILITY
FIBERS
RADIATION EFFECTS
POLYSTYRENE
OILS
PIGMENTS
360605
440101
GENERAL DETECTORS OR MONITORS AND RADIOMETRIC INSTRUMENTS