Scintillation
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Principles and Applications of Liquid Scintillation Counting
ehs.psu.eduscintillation of the phosphor, and, finally, the solvent must dissolve the phosphor to produce a stable, countable solution. Aromatic organics have proven to be the best solvents for LSC. The prototypical LSC solvent is toluene (The solvents used in National
Gamma Ray Spectroscopy - Department of Physics
www.phys.ufl.eduScintillation Detector A block diagram for a typical scintillation de-tection system is shown in Fig. 1. The scin-tillation detector is illustrated in Fig. 2. Our detector has a 4×4 inch cylindrical NaI scintil-lation crystal which is activated with about 1 part in 103 thallium impurities. Through var-ious processes, a gamma ray passing into the
SULFUR DIOXIDE 6004
www.cdc.govSULFUR DIOXIDE: METHOD 6004, Issue 2, dated 15 August 1994 - Page 3 of 4 NOTE: The SO 2 collected on the treated (back) filter is present as sulfite, which oxidizes in air slowly (over several weeks) to sulfate. The contributions of sulfite and sulfate found on the
CHROMIUM, HEXAVALENT 7600
www.cdc.govCHROMIUM, HEXAVALENT 7600 Cr(VI) MW: 3) CAS: 52.00 (Cr); 99.99 (CrO 18540-29-9 RTECS: GB6262000 METHOD: 7600, Issue 2 EVALUATION: FULL Issue 1: 15 May 1989 Issue 2: 15 August 1994 OSHA : 0.1 mg/m3 (as CrO 3) NIOSH: 0.001 mg/m3/10 h; carcinogen ACGIH: 0.050 mg/m3 (as Cr, soluble); some insoluble chromates are human carcinogens