Instrumental estimates of accumulated external dose using method of single grain retrospective luminescence dosimetry with quartz microcrystals: first results of international study for samples – “witness” of nuclear tests (Semey city, Republic of Kazakhstan)

Stepanenko, Valeriy; Каприн, А. Д.; Иванов, С. А.; Мулдагалиев, Т Ж; Kolyzhenkov, T.V.; Bogacheva, V.V.; Petukhov, A.D.; Akhmedova, U.A.; Lipikhina, A.V.; Jambaev, M.T.; Apsalikova, Z.S.; Mansarina, A.E.; Яськова, Е К; Ivannikov, A.I.; Скворцов, В. Г.; Zhumadilov, Kassym; Hoshi, Masaharu

doi:10.21870/0131-3878-2019-28-4-118-128

Cited by 2 publications

(1 citation statement)

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“…Разработанные методы ретроспективной дозиметрии были усовершенствованы и получили применение в дальнейших пилотных исследованиях по пересмотру консервативных расчётных доз облучения населения после ядерных испытаний на Семипалатинском полигоне [23][24][25], для верификации расчётных доз после аварии на АЭС Фукусима-1 [26,27], а также для оценок доз облучения населения от остаточной радиоактивности после атомных бомбардировок Хиросимы и Нагасаки [28]. Исследования в данном направлении были начаты и продолжаются в рамках двусторонних международных соглашений с ведущими научными центрами Японии и Казахстана.…”

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35 years after the Chernobyl NPP accident: methods of retrospective dosimetry in assessing of the consequences of large-scale uncontrolled radiation exposures, their subsequent development and application in oncoradiology (experience of A. Tsyb MRRC)

Степаненко¹,

Каприн²,

Иванов³

et al. 2021

Radiation and Risk

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Individual retrospective dosimetry was developed at A. Tsyb Medical Radiological Research Centre (A. Tsyb MRRC) after the Chernobyl accident for assessment and analysis of radiation effects on people lived in radioactively contaminated settlements in the Kaluga and Bryansk regions. The method was also used in radiation epidemiology case-control studies within frames of international pilot projects. The ob-tained data demonstrated reliable dose-response relationship for thyroid cancer in patients with diag-nosed thyroid cancer, who were children and adolescents at the time of the accident and resided in radi-oactively contaminated areas in the Bryansk region. The dose-response relationship for diagnosed inva-sive breast cancer was found in women, resided in radioactively contaminated settlements since the acci-dent till the first diagnosis of cancer that was established within the period from October 2008 to February 2013. Their age at diagnosis was under 55 years. At the same time, no dose-response relationship for leu-kaemia was found in children under 5 years old at the time of the accident. The individual retrospective dosimetry method has been updated and used in pilot studies for verifying conservative estimates of radi-ation doses to the population exposed to radiation as a result of nuclear tests at the Semipalatinsk nuclear test site, as well as for verifying estimates of external radiation doses to people affected by the accident at the Fukushima Daiichi NPP. The method was also used for estimating individual doses from residual radi-oactivity for the survivors of the Hiroshima and Nagasaki atomic bombings. The long-term collaboration continues under bilateral International Collaboration Agreements between the National Medical Research Radiological Centre and leading research centres in the Republic of Kazakhstan and Japan. Since 2016 researchers and physicians of A. Tsyb MRRC have modi-fied method of stimulated luminescence of natural and synthetic materials and developed innovative technology in vivo dosimetry that has been put into clinical practice for estimating spatial radiation doses distribution in internal organs at risk during the brachytherapy of prostate cancer, gynecologic and recur-rent pelvic tumors, as well as for estimating local radiation dose to the skin of the breast gland with the tumor. The 35-year experience in the development and application of methods for individual retrospective dosimetry after the Chernobyl accident formed the basis for identifying future-pointing trends for the de-velopment of novel applications of stimulated luminescence techniques. Radiation-induced stimulated luminescence dosimetry can be applicable in uncontrolled radiation events; retrospective dosimetry method applicable for neutron beam radiation therapy is under development. The method of in vivo do-simetry is useful in radiation oncology. Now assembled thermoluminiscent micro-sized dosimeters are used for arterial radioembolization. At present, feasibility of using items of clothing and special inserts (buttons, fastenings, etc.), parts of wearable electronic devices as natural dosimeters, as well as the feasi-bility of using luminescent microdosimeters, made of different materials, after exposure to high LET radiation ranged from a fraction of mGy to the dose greater than 60 Gy have been examined. Development of flexible planar microdosimeter assemblies in order to obtain more detailed information about possible discrepancy in distribution of planned and actual radia-tion doses to patients during radiotherapy is considered.

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35 years after the Chernobyl NPP accident: methods of retrospective dosimetry in assessing of the consequences of large-scale uncontrolled radiation exposures, their subsequent development and application in oncoradiology (experience of A. Tsyb MRRC)

Степаненко¹,

Каприн²,

Иванов³

et al. 2021

Radiation and Risk

Self Cite

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Comparison of external dose estimates using different retrospective dosimetry methods in the settlements located near Semipalatinsk Nuclear Test Site, Republic of Kazakhstan

Stepanenko,

Shinkarev,

Kaprin

et al. 2023

Journal of Radiation Research

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For correct assessment of health risks after low-dose irradiation, calculation of radiation exposure estimates is crucial. To verify the calculated absorbed doses, instrumental methods of retrospective dosimetry are used. We compared calculated and instrumental-based estimates of external absorbed doses in the residents of Dolon, Mostik and Cheremushki villages, Kazakhstan, affected by the first nuclear weapon test performed at the Semipalatinsk Nuclear Test Site (SNTS) on August 29, 1949. The ‘instrumental’ doses were retrospectively estimated using the Luminescence Retrospective Dosimetry (LRD) and Electron Spin Resonance (ESR) methods. Correlation between the calculated individual cumulative external absorbed whole-body doses based on typical input data and ESR-based individual doses in the same people was strong (r = 0.782). It was even stronger between the calculated doses based on individual questionnaires’ input data and the ESR-based doses (r = 0.940). Application of the LRD method is useful for validation of the calculated settlement-average cumulated external absorbed dose to air. Reconstruction of external exposure can be supplemented with the data from later measurements of soil contamination with long-lived radionuclides, such as, 137Cs. Our results show the reliability of the calculational method used for the retrospective assessment of individual external doses.

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Instrumental estimates of accumulated external dose using method of single grain retrospective luminescence dosimetry with quartz microcrystals: first results of international study for samples – “witness” of nuclear tests (Semey city, Republic of Kazakhstan)

Cited by 2 publications

References 0 publications

35 years after the Chernobyl NPP accident: methods of retrospective dosimetry in assessing of the consequences of large-scale uncontrolled radiation exposures, their subsequent development and application in oncoradiology (experience of A. Tsyb MRRC)

35 years after the Chernobyl NPP accident: methods of retrospective dosimetry in assessing of the consequences of large-scale uncontrolled radiation exposures, their subsequent development and application in oncoradiology (experience of A. Tsyb MRRC)

Comparison of external dose estimates using different retrospective dosimetry methods in the settlements located near Semipalatinsk Nuclear Test Site, Republic of Kazakhstan

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