Performance comparison of OSLD (Al2O3:C) and TLD (LiF:Mg, Cu, P) in accreditation proficiency testing. (October 2016)

• Record Type: Journal Article
• Authors: Romanyukha, A.; Grypp, M.D.; Fairchild, G.R.; Williams, A.S.
• Is Part Of: Radiation measurements. Volume 93(2016:Oct.)
• Page Start: 7
• Page End: 12
• Publication Date: 2016-10
• Subjects: TLD -- OSL -- Personal dosimetry -- Proficiency testing; Nuclear emulsions -- Periodicals; Particle tracks (Nuclear physics) -- Periodicals; Thermoluminescence -- Periodicals; Cosmic rays -- Periodicals; Radiation -- Measurement -- Periodicals; Radiometry -- Periodicals; Radiation Monitoring -- Periodicals; Émulsions nucléaires -- Périodiques; Particules (Physique nucléaire) -- Traces -- Périodiques; Thermoluminescence -- Périodiques; Rayonnement cosmique -- Périodiques; Radiométrie -- Périodiques; 539.77
• DOI: 10.1016/j.radmeas.2016.08.003
• Languages: English
• ISSNs: 1350-4487

Abstract

Abstract: The U.S. Navy uses a dosimetric system, which employs the LiF:Mg, Cu, P thermoluminescence dosimeters (TLDs), developed and produced by Thermo Fisher Scientific. Every two years, the Naval Dosimetry Center (NDC) performs proficiency testing to maintain its national accreditation. Since 2007, the U.S. Navy has also tested InLight Basic - OSLN Optically Stimulated Luminescence Al2 O3 :C dosimeters (OSLD) manufactured by Landauer. In 2011 and 2013, the Naval Dosimetry Center performed proficiency testing for both systems. Here we present a comparison of the performance of TLDs (LiF:Mg, Cu, P) and OSLDs (Al2 O3 :C) in five categories of proficiency testing. The testing included irradiation with photons, neutrons, beta particles and selected mixtures of these radiations. All irradiations were performed at the Pacific Northwest National Laboratory (PNNL). The delivered doses were not reported to the NDC. The official comparison of delivered and reported doses was conducted by PNNL in terms of dose bias and its standard deviation for each category of accreditation. In total, the NDC reported to the PNNL doses for 147 dosimeters of each type (TLD and OSLD). Both NDC tested dosimetric systems have passed established limits. The comparison of OSLD and TLD system performance in each category is discussed. Advantages and disadvantages of both systems are analyzed. Highlights: Performance of LiF:Mg, Cu, P TLDs and Al2 O3 :C OSL dosimeters is compared. The testing included irradiation with photons, neutrons, beta particles and selected mixtures. The comparison of OSLD and TLD system performance in each category is discussed. Both systems perform up to one order better than the ANSI 13.11, 2009 passing limits. Advantages and disadvantages of both systems are analyzed.