Effect of liquid scintillating cocktail volume on 3H and 14C measurement parameters using a Quantulus spectrometer

• Autorzy: Komosa A. , Ślepecka K.
• Języki publikacji: EN

Abstrakty

EN

Results of study on the influence of cocktail volume on such measuring parameters as counting efficiency, standard quench parameter (SQP) and figure of merit (FOM) are described. Nine commercial cocktails were tested using a Quantulus spectrometer. Two kinds of vials (low-diffusion teflon-coated polyethylene (LD-PE) and high-performance glass (HP-G)) and two standard solutions (14C and 3H) were used. Measurements were performed at seven quench levels ensured by carbon tetrachloride addition to the scintillation vials. Various quench sensitivity of the studied cocktails was found. Cocktails based on simple benzene-derived solvents revealed the best quench resistance. In general, increasing cocktail volume caused an increase in the counting efficiency. However, the background increased as well, what resulted in FOM diminishing. Studied cocktails revealed also various responses to volume changes.

Słowa kluczowe

EN

liquid scintillating cocktail; tritium; 14C; Quantulus; counting efficiency; standard quench parameter (SQP); figure of merit (FOM)

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2010
• Tom: Vol. 55, No. 2
• Strony: 155--161
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Komosa A.

autor

Ślepecka K.

• Department of Radiochemistry and Colloid Chemistry, Maria Curie-Skłodowska University, 3 M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland, Tel.: [phone], Fax: [phone],

Bibliografia

• 1. Chałupnik S, Lebecka J, Mielnikow A, Michalik B (1996) Determining radium in water: comparison of methods. In: Cook GT, Harkness DD, MacKenzie AB, Miller BF, Scott EM (eds) Liquid scintillation spectrometry 1994. Radiocarbon, Tucson, Arizona, USA, pp 103–109
• 2. Komosa A, Ślepecka K (2009) Study on quenching effects for 14C and 3H measurement parameters using a Quantulus spectrometer. In: Eikenberg J, Jäggi M, Beer H, Baehrle H (eds) LSC 2008 Advances in liquid scintillation spectrometry. Radiocarbon, Tucson, Arizona, USA, pp 161–172
• 3. L’Annunziata MF, Kessler J (1998) Radiotracer liquid scintillation analysis. In: L’Annunziata MF (ed) Handbook of radioactivity analysis. Academic Press, London, pp 209–239
• 4. Passo Jr CJ, Anderson R, Cook GT, Thomson J (2002) The effects of substituted anthreacenes and novel scintillating solvents in cocktail formulations for alpha/beta separation liquid scintillation spectrometry. In: Möbius S, Noakes J, Schönchofer F (eds) LSC 2001 Advances in liquid scintillation spectrometry. Radiocarbon, Tucson, Arizona, USA, pp 141–146
• 5. PerkinElmer, www.perkinelmer.com
• 6. Pujol Ll, Sanchez-Cabeza JA (1999) Optimization for liquid scintillation counting conditions for rapid tritium determination in aqueous samples. J Radioanal Nucl Chem 242:391–398
• 7. Verrezen F, Loots H, Hurtgen C (2008) A performance comparison of nine selected liquid scintillation cocktails. Appl Radiat Isot 66:1038–1042
• 8.Weise HJ, Fliss P (1995) Identifikation von Beta-Nukliden und Analyse von Mehrfach-Beta-Spektren bei Messungen mit dem Flüssig-Szintillationsspectrometer (LSC). Berichte des Forschungszentrums Jülich no 3066