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Szufa KM, Majgier R. OPTICALLY STIMULATED LUMINESCENCE PROPERTIES OF COMMERCIALLY AVAILABLE KCL DIETARY SUPPLEMENTS AS RETROSPECTIVE DOSIMETERS. LUMINESCENCE 2022; 37:1760-1768. [PMID: 35916107 DOI: 10.1002/bio.4355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/06/2022] [Accepted: 07/29/2022] [Indexed: 11/07/2022]
Abstract
In the case of an unexpected exposure to radiation in places where there is no access to standard dosimeters, materials that can act as detectors in methods of retrospective dosimetry are looked for. Such materials include, but are not limited to, medicines and dietary supplements that are found in households or in personal bags. This paper presents the optically stimulated luminescence (OSL) dosimetric properties of dietary supplements, the main ingredient of which is a sensitive phosphor - potassium chloride (KCl). Three types of potassium chloride dietary supplements were tested and and compared to a selection of four common drugs in terms of their sensitivity. Basic dosimetric properties of dietary supplements such as signal repeatability, dose response and fading were determined. The dose recovery test was performed two and seven days after exposure to radiation. The obtained dose values for the two supplements showed good compliance with the nominal dose values and the possibility of correctly assigning the doses to the levels of triage (low dose 0-1 Gy, medium dose 1-2 Gy and high dose > 2 Gy). The presented results show that dietary supplements with KCl have the potential to be used as emergency detectors in the dose recovery process.
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Affiliation(s)
- Katarzyna M Szufa
- Department of Experimental and Applied Physics, Faculty of Science and Technology, Jan Dlugosz University, ul. Armii Krajowej 13/15, Czestochowa, Poland
| | - Renata Majgier
- Department of Experimental and Applied Physics, Faculty of Science and Technology, Jan Dlugosz University, ul. Armii Krajowej 13/15, Czestochowa, Poland
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Comparison of luminescence detectors of Al 2O 3:C, CaF 2:Mn, LiF:Mg,Cu,P and quartz with respect to retrospective dose reconstructions using bricks. Appl Radiat Isot 2021; 178:109947. [PMID: 34536830 DOI: 10.1016/j.apradiso.2021.109947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/26/2021] [Accepted: 09/09/2021] [Indexed: 11/21/2022]
Abstract
In the aftermath of an orphan radiation source find, a complex retrospective dose reconstruction can be required to estimate doses of persons who were staying in the vicinity. In retrospective dose reconstructions based on luminescence measurements of quartz extracted from bricks, high sensitivity thermoluminescence detectors (TLD) can be used as an ancillary tool for dose distribution measurements or natural radiation background measurement. We investigated the potential and limits of Al2O3:C, CaF2:Mn and LiF:Mg,Cu,P detectors for such applications. We measured depth-dose profiles in bricks using quartz and the TLDs. We factored in important dosimetry characteristics such as dose response, energy response and detection threshold. The work included Monte Carlo simulations. Depth-dose profiles and radiation spectra inside of the bricks were calculated for purposes of comparison and interpretation. The measurements and calculations were performed for two different photon spectra with mean energies of 662 and 118 keV. As regards comparison of the measured and Monte Carlo calculated depth-dose profiles, the best agreement was found for LiF:Mg,Cu,P. Quartz, Al2O3:C and CaF2:Mn tend to overestimate dose for lower photon energies and greater depths in bricks. The overestimation was the most marked for CaF2:Mn. For measurements related to quartz, especially for natural radiation background dose measurement, the most suitable TLDs are Al2O3:C and LiF:Mg,Cu,P. CaF2:Mn is the least useful material.
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Jakathamani S, Annalakshmi O, Menon S, Kadam SY, Jose M, Venkatraman B. Ceramic resistors as optically stimulated luminescent retrospective dosimeters. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2019.108436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Isik E, Toktamis H. TLD characteristic of glass, feldspathic and lithium disilicate ceramics. LUMINESCENCE 2019; 34:272-279. [PMID: 30746856 DOI: 10.1002/bio.3605] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 01/01/2019] [Accepted: 01/06/2019] [Indexed: 11/05/2022]
Abstract
Thermoluminescence (TL) emission of dental ceramics could be potentially used for retrospective dosimetry purposes as this allows a quick and reliable dose assessment in case of nuclear accident or bad use of a nuclear attack. This paper reports on the chemical and luminescence characterization of glass, feldspathic and lithium disilicate glass ceramic (LS2 ). Swedish and Turkish dental ceramics supplied by Vivadent Ivoclar considering: (i) the dose response in the range 10 Gy to 6.9 kGy which displays a linear dose-response at low dose values up to 36 Gy (glass and feldspathic ceramics) and shows sublinear behavior from 12 Gy to 6 kGy (lithium disilicate glass ceramics), (ii) a reproducibility of the TL signal in which the area under the glow curve increased about 25% after 10 cycles for glass and lithium disilicate ceramics and increased about 30% after seven cycles for feldspathic ceramics, (iii) stability of the luminescence emission with the elapsed time and (iv) effect of the heating rate. Glass, lithium disilicate and feldspathic ceramics display a complex UV-blue glow emission that can be respectively fitted to five and four groups of components assuming first-order kinetics behavior.
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Affiliation(s)
- Esme Isik
- Department of Engineering Physics, Faculty of Engineering, University of Gümüşhane, Gümüşhane, Turkey
| | - Huseyin Toktamis
- Department of Engineering Physics, Faculty of Engineering, University of Gaziantep, Gaziantep, Turkey
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Guibert P, Christophe C, Urbanová P, Guérin G, Blain S. Modeling incomplete and heterogeneous bleaching of mobile grains partially exposed to the light: Towards a new tool for single grain OSL dating of poorly bleached mortars. RADIAT MEAS 2017. [DOI: 10.1016/j.radmeas.2017.10.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bailiff I, Sholom S, McKeever S. Retrospective and emergency dosimetry in response to radiological incidents and nuclear mass-casualty events: A review. RADIAT MEAS 2016. [DOI: 10.1016/j.radmeas.2016.09.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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7
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An Overview of the Use of Absolute Dating Techniques in Ancient Construction Materials. GEOSCIENCES 2016. [DOI: 10.3390/geosciences6020022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Urbanova P, Hourcade D, Ney C, Guibert P. Sources of uncertainties in OSL dating of archaeological mortars: The case study of the Roman amphitheatre “Palais-Gallien” in Bordeaux. RADIAT MEAS 2015. [DOI: 10.1016/j.radmeas.2014.11.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Christiansson M, Mattsson S, Bernhardsson C, Rääf CL. Optimizing a readout protocol for low dose retrospective OSL-dosimetry using household salt. HEALTH PHYSICS 2012; 102:631-636. [PMID: 22549319 DOI: 10.1097/hp.0b013e31824108f5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The authors' aim has been to find a single aliquot regenerative dose (SAR) protocol that accurately recovers an unknown absorbed dose in the region between 1-250 mGy in household salt. The main investigation has been conducted on a specific mine salt (>98.5% NaCl) intended for household use, using optical stimulation by blue LED (λ = 462 nm). The most accurate dose recovery for this brand of salt is found to be achieved when using Peak Signal Summing (PSS) of the OSL-decay and a preheat temperature of 200°C after the test dose. A SAR protocol for the household salt with preset values of regenerative doses (R1--R5) and a test dose (TED) of 17 mGy is also suggested here. Under laboratory conditions, the suggested protocol recovers unknown absorbed doses in this particular brand within 5% (2 SD) in the dose range between 1-250 mGy. This is a very promising result for low dose applications of household salt as a retrospective dosimeter after a nuclear or radiological event.
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Affiliation(s)
- Maria Christiansson
- Medical Radiation Physics, Department of Clinical Sciences, Malmö, Lund University, Skåne University Hospital Malmö, Malmö, Sweden.
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Topaksu M, Correcher V, Garcia-Guinea J, Topak Y, Göksu HY. Comparison of thermoluminescence (TL) and cathodoluminescence (ESEM-CL) properties between hydrothermal and metamorphic quartzes. Appl Radiat Isot 2012; 70:946-51. [PMID: 22476018 DOI: 10.1016/j.apradiso.2012.03.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Revised: 03/12/2012] [Accepted: 03/13/2012] [Indexed: 11/16/2022]
Abstract
This paper reports on the Thermoluminescence (TL) and Cathodoluminescence (CL) emission of well-characterized hydrothermal milky quartz specimens from Hakkari in Turkey, labeled THQ, and Madrid in Spain, labeled SHQ, and metamorphic quartz from Madrid, in Spain, labeled SMQ. Both hydrothermal and metamorphic quartz samples display similar UV-IR CL spectra consisting of five groups of components centered at 330 nm and 380 nm linked to [AlO(4)]° centers, 420 nm due to intrinsic defects such as oxygen vacancies, lattice defects, and impurities which modify the crystal structure, 480 nm associated with [AlO(4)]° centers of substitutional Al(3+), and a red broad band related to the hydroxyl defects in the quartz lattice as precursors of non-bridging oxygen hole centers (NBOHC) and substitutional point defects. The Turkish quartz specimen exhibits higher CL intensity in the UV region (up to 330 nm) than the Spanish specimens probably linked to the presence of Ca (0.95% in THQ and less than 0.1% in SHQ and SMQ). At wavelengths greater than 330 nm, SMQ (formed at high pressure 6000 bars and temperatures over 500-600°C) shows higher intensity than the hydrothermal (growth at 2000 bars and temperatures 200-300°C) samples associated with the formation process. The natural blue TL glow curves of both THQ and SHQ display a weaker TL intensity than the SMQ, attributable to the Al (0.32%), Ti (0.14%), K (0.01%) and Zr (76 ppm) content. It is shown that mineralogical formation, crystallinity index and the content of the impurities seem to be the main parameters of influence in the shape intensity of the CL and TL glow curve emission.
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Affiliation(s)
- M Topaksu
- Department of Physics, Faculty of Science and Art, Adiyaman University, 02040 Adiyaman, Turkey.
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Fujita H, Jain M, Murray A. Retrospective dosimetry using Japanese brick quartz: A way forward despite an unstable fast decaying OSL signal. RADIAT MEAS 2011. [DOI: 10.1016/j.radmeas.2011.03.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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FUJITA H, JAIN M, MURRAY AS. Utilisation of OSL from Table Salt in Retrospective Dosimetry. ACTA ACUST UNITED AC 2011. [DOI: 10.5453/jhps.46.60] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Bernhardsson C, Christiansson M, Mattsson S, Rääf CL. Household salt as a retrospective dosemeter using optically stimulated luminescence. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2009; 48:21-28. [PMID: 18797911 DOI: 10.1007/s00411-008-0191-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2008] [Accepted: 08/27/2008] [Indexed: 05/26/2023]
Abstract
The aim of this work was to investigate the potential of a selection of household salts (NaCl) as a retrospective dosemeter for ionising radiation using optically stimulated luminescence (OSL). The OSL-response of five brands of salt to an absorbed dose in the range from 1 mGy to 9 Gy was investigated using a Risø TL/OSL-15 reader and a (60)Co beam, allowing low dose-rate irradiations. The salt was optically stimulated with blue light (lambda = 470 +/- 30 nm) at a constant stimulation power (CW-OSL) of 20 mW cm(-2). A linear dose response relationship was found in the dose range from 1 mGy to about 100 mGy and above that level, the relationship becomes moderately supra-linear, at least up to 9 Gy. Depending on the sensitivity and background signal, the minimum detectable absorbed dose (MDD) for the household salt when kept at sealed conditions varied from 0.2 to 1.0 mGy, for the household salts investigated. In addition to its widespread abundance and availability, the low MDD suggests that household salt should seriously be considered as an emergency dosemeter. However, the OSL-properties of NaCl under normal household usage need to be more properly investigated as well as the variation in sensitivity by the quality of the radiation. A further optimisation of the read-out sequence for various brands of commercially available salt may further improve the sensitivity, in terms of luminescence yield, and the signal reproducibility.
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Affiliation(s)
- Christian Bernhardsson
- Medical Radiation Physics, Department of Clinical Sciences, Lund University, Malmö University Hospital, 205 02, Malmö, Sweden.
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Ramzaev V, Bøtter-Jensen L, Thomsen KJ, Andersson KG, Murray AS. An assessment of cumulative external doses from Chernobyl fallout for a forested area in Russia using the optically stimulated luminescence from quartz inclusions in bricks. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2008; 99:1154-1164. [PMID: 18342414 DOI: 10.1016/j.jenvrad.2008.01.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2007] [Revised: 01/18/2008] [Accepted: 01/30/2008] [Indexed: 05/26/2023]
Abstract
Optically stimulated luminescence (OSL) has been used for estimation of the accumulated doses in quartz inclusions obtained from two fired bricks, extracted in July 2004 from a building located in the forested surroundings of the recreational area Novie Bobovichi, the Bryansk Region, Russia. The area was significantly contaminated by Chernobyl fallout with initial (137)Cs ground deposition level of approximately 1.1 MBq m(-2). The accumulated OSL doses in sections of the bricks varied from 141 to 207 mGy, of which between 76 and 146 mGy are attributable to Chernobyl fallout. Using the OSL depth-dose profiles obtained from the exposed bricks and the results from a gamma-ray-survey of the area, the Chernobyl-related cumulative gamma-ray dose for a point detector located in free air at a height of 1m above the ground in the study area was estimated to be ca. 240 mGy for the time period starting on 27 April 1986 and ending on 31 July 2004. This result is in good agreement with the result of deterministic modelling of the cumulative gamma-ray dose in free air above undisturbed ground from the Chernobyl source in the Bryansk Region. Over the same time period, the external Chernobyl-related dose via forest pathway for the most exposed individuals (e.g., forest workers) is estimated to be approximately 39 mSv. Prognosis for the external exposure from 1986 to 2056 is presented and compared with the predictions given by other investigators of the region.
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Affiliation(s)
- V Ramzaev
- St Petersburg Institute of Radiation Hygiene, Mira Street 8, 197101 St Petersburg, Russia.
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16
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Determination of burial dose in incompletely bleached fluvial samples using single grains of quartz. RADIAT MEAS 2007. [DOI: 10.1016/j.radmeas.2007.01.041] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Solongo S, Wagner G, Galbaatar T. The estimation of using the fast and medium components in fired quartz from archaeological site Karakorum, Mongolia. RADIAT MEAS 2006. [DOI: 10.1016/j.radmeas.2006.05.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Göksu HY, Stepanenko VF, Bailiff IK, Jungner H. Intercomparison of luminescence measurements of bricks from Dolon' village: experimental methodology and results of European Study Group. JOURNAL OF RADIATION RESEARCH 2006; 47 Suppl A:A29-37. [PMID: 16571942 DOI: 10.1269/jrr.47.a29] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Thermoluminescence (TL) and optically stimulated luminescence (OSL) techniques were applied to quartz grains extracted from various depths in bricks taken from buildings in the village of Dolon', Kazakhstan, to determine the cumulative absorbed dose, DT. The measurements were performed in four laboratories (EU supported Measurement Group). The results obtained using TL and OSL are compared and discussed with reference to known sources of experimental uncertainty and relevant luminescence characteristics that may affect the evaluation of the absorbed dose. The external nature of the irradiation due to gamma rays from artificial radionuclides is verified by the measurement of depth-dose profiles, and these are compared with those obtained in previous studies for bricks from the same region. To produce these profiles, the cumulative dose due to natural background radiation, DBG, was assessed, particularly based on the concentrations of radionuclides of lithogenic origin within the bricks and the surrounding environment. The consistency of these estimates of DBG was assessed using depth-dose data and absorbed dose determinations for bricks collected from shielded locations. The values of cumulative absorbed dose since the onset of fallout, DX, were calculated as the difference between the values of total cumulative dose in bricks since its manufacture, DT, and values of DBG. Furthermore, estimations of the cumulative absorbed doses in air in the reference location near the sampled buildings, RLDX, were obtained using corresponding conversion factors, CRL, estimated on the basis of previous work. In addition to results for samples distributed for the International Intercomparison, reference is made to relevant results from samples that were collected in 1999 from Dolon' village and studied as part of EU-supported research.
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Affiliation(s)
- H Yeter Göksu
- GSF- National Research Center for Environment and Health, GmbH, Neuherberg, Germany.
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Bailiff IK, Stepanenko VF, Göksu HY, Bøtter-Jensen L, Correcher V, Delgado A, Jungner H, Khamidova LG, Kolizshenkov TV, Meckbach R, Petin DV, Orlov MY, Petrov SA. Retrospective luminescence dosimetry: development of approaches to application in populated areas downwind of the Chernobyl NPP. HEALTH PHYSICS 2005; 89:233-46. [PMID: 16096499 DOI: 10.1097/01.hp.0000164654.66585.20] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The cumulative absorbed dose in fired-clay bricks collected from ten buildings in the populated contaminated settlement (137Cs, 1,470 kBq m(-2)) of Stary Vishkov, located 175 km downwind of the Chernobyl Nuclear Power Plant (NPP) in the Bryansk administrative region of Russia, was determined using luminescence techniques by five laboratories. At each location, the cumulative dose, after subtraction of the natural background dose, was translated to absorbed dose in air using conversion factors derived from Monte Carlo simulations. The simulations employed source distributions inferred from contemporary soil contamination data and also took into account heterogeneity of fallout deposition. At four locations the cumulative dose at a reference location was calculated, enabling the luminescence determinations to be compared directly with values of cumulative absorbed dose in air obtained using deterministic models. A "local" conversion factor was also derived from the Monte Carlo simulations for locations where the disturbance of soil was significant. Values of the "local" cumulative dose in air calculated using this factor were compared with those predicted using the deterministic models at each sampled location, allowing location factors to be calculated. The methodology developed is generally applicable to populated areas contaminated by radioactive fallout in which brick buildings are found. The sensitivity of the luminescence techniques for bricks from this region of Russia was sufficient to evaluate cumulative absorbed dose in brick due to fallout of less than 20 mGy.
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Affiliation(s)
- I K Bailiff
- Luminescence Laboratory, Environmental Research Centre, University of Durham, South Road, Durham DH1 3LE, UK.
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Thomsen K, Murray A, Bøtter-Jensen L. Sources of variability in OSL dose measurements using single grains of quartz. RADIAT MEAS 2005. [DOI: 10.1016/j.radmeas.2004.01.039] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Bailiff IK, Stepanenko VF, Göksu HY, Jungner H, Balmukhanov SB, Balmukhanov TS, Khamidova LG, Kisilev VI, Kolyado IB, Kolizshenkov TV, Shoikhet YN, Tsyb AF. The application of retrospective luminescence dosimetry in areas affected by fallout from the semipalatinsk nuclear test site: an evaluation of potential. HEALTH PHYSICS 2004; 87:625-641. [PMID: 15545769 DOI: 10.1097/01.hp.0000137178.36835.79] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Luminescence retrospective dosimetry techniques have been applied with ceramic bricks to determine the cumulative external gamma dose due to fallout, primarily from the 1949 test, in populated regions lying NE of the Semipalatinsk Nuclear Test Site in Altai, Russia, and the Semipalatinsk region, Kazakhstan. As part of a pilot study, nine settlements were examined, three within the regions of highest predicted dose (Dolon in Kazakshstan; Laptev Log and Leshoz Topolinskiy in Russia) and the remainder of lower predicted dose (Akkol, Bolshaya Vladimrovka, Kanonerka, and Izvestka in Kazakshstan; Rubtsovsk and Kuria in Russia) within the lateral regions of the fallout trace due to the 1949 test. The settlement of Kainar, mainly affected by the 24 September 1951 nuclear test, was also examined. The bricks from this region were found to be generally suitable for use with the luminescence method. Estimates of cumulative absorbed dose in air due to fallout for Dolon and Kanonerka in Kazakshstan and Leshoz Topolinskiy were 475 +/- 110 mGy, 240 +/- 60 mGy, and 230 +/- 70 mGy, respectively. The result obtained in Dolon village is in agreement with published calculated estimates of dose normalized to Cs concentration in soil. At all the other locations (except Kainar) the experimental values of cumulative absorbed dose obtained indicated no significant dose due to fallout that could be detected within a margin of about 25 mGy. The results demonstrate the potential suitability of the luminescence method to map variations in cumulative dose within the relatively narrow corridor of fallout distribution from the 1949 test. Such work is needed to provide the basis for accurate dose reconstruction in settlements since the predominance of short-lived radionuclides in the fallout and a high degree of heterogeneity in the distribution of fallout are problematic for the application of conventional dosimetry techniques.
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Affiliation(s)
- I K Bailiff
- Luminescence Laboratory, Environmental Research Centre, University of Durham, South Road, Durham DH1 3LE, UK.
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Thermal transfer and apparent-dose distributions in poorly bleached mortar samples: results from single grains and small aliquots of quartz. RADIAT MEAS 2004. [DOI: 10.1016/j.radmeas.2003.07.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Bailiff IK, Stepanenko VF, Göksu HY, Bøtter-Jensen L, Brodski L, Chumak V, Correcher V, Delgado A, Golikov V, Jungner H, Khamidova LG, Kolizshenkov TV, Likhtarev I, Meckbach R, Petrov SA, Sholom S. Comparison of retrospective luminescence dosimetry with computational modeling in two highly contaminated settlements downwind of the Chernobyl NPP. HEALTH PHYSICS 2004; 86:25-41. [PMID: 14695006 DOI: 10.1097/00004032-200401000-00006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The cumulative absorbed dose in bricks collected from six buildings in two heavily contaminated settlements (137Cs > 2,000 kBq m(-2)) located downwind of the Chernobyl Nuclear Power Plant was determined using luminescence techniques by six laboratories. The settlements, Vesnianoje in Ukraine and Zaborie in Russia, are located in, respectively, proximal and distal locations relative to the Chernobyl Nuclear Power Plant. The luminescence determinations of cumulative dose in brick, after subtraction of the natural background dose, were translated to absorbed dose in air at a Reference Location using conversion factors derived from Monte Carlo simulations of photon transport. The simulations employed source distributions inferred from contemporary soil contamination data and also took into account heterogeneity of fallout deposition. This translation enables the luminescence determinations to be compared directly with values of cumulative absorbed dose obtained by computational modeling and also other dose reconstruction methods. For each sampled location the cumulative dose was calculated using three deterministic models, two of which are based on the attenuation of dose-rate with migration of radionuclides in soil and the third on historic instrumental gamma dose-rate data. The results of the comparison of the two methods indicate overall agreement within margins of +/-25%. The methodology developed is generally applicable and adaptable to areas contaminated by much lower levels of radioactive fallout in which brick buildings are found.
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Affiliation(s)
- I K Bailiff
- Luminescence Laboratory, Environmental Research Centre, University of Durham, South Road, Durham DH1 3LE, UK.
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Göksu H, Bailiff I, Mikhailik V. New approaches to retrospective dosimetry using cementitious building materials. RADIAT MEAS 2003. [DOI: 10.1016/s1350-4487(03)00005-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Thomsen K, Jain M, Bøtter-Jensen L, Murray A, Jungner H. Variation with depth of dose distributions in single grains of quartz extracted from an irradiated concrete block. RADIAT MEAS 2003. [DOI: 10.1016/s1350-4487(03)00006-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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