N1 - 2000-год моих радиоактивных исследований по Земле нашей...
у атомщиков
всегда
всё хорошо
и чисто,
что там Чернобыль
или Фокусима,
была бы денежна
малина,
а дел
они
наделают
всегда...
хоть
сам я ядерщик,
но стыдно
иногда.....
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Article: Two Siberian Rivers Full of Radioactivity
S. E. Pashchenko
Article · May 2000;with;579 Reads
Abstract: Dear Editor, The information in your article ["Two Siberian Rivers Full of Radioactivity," Nov. 3, 2000] was drawn from a report entitled "Radioactive Pollution in the Tom River," dated Nov. 1, 2000, and distributed by the non-governmental Government Accountability Project. The specialists of the Siberian Chemical Complex have analyzed this report and, as one might expect of information published in the periodical press, this report does not contain any information worthy of serious attention by experts in the field of environmental nuclear safety. Here are some of our reasons for reaching this conclusion: The measurements of the samples were carried out by the Novosibirsk State Laboratory and some American and Canadian laboratories that are not named in the report. Such anonymity means that we cannot judge their qualifications or the quality of the results presented in the report, which themselves raise doubts about the competence of these laboratories. For example, in regard to the measurements of phosphorus-32 and strontium-90 that are mentioned in your article, not one of the laboratories producing these results is identified in the report. The text merely reports that the American team handed the samples over to a laboratory (?) in Canada for mass-spectroscopic analysis for strontium-90 but that none was found. Show less
Article · May 2000
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by Norm Buske Sergey E. Pashenko Alexey V. Toropov [1] 01 November 2000 RADIOACTIVE WASTE OF RIVER TOM
Conference Paper · November 2000;with;730 Reads
Conference: SSGR, At Published by the Government Accountability Project, Washington DC and Seattle WA., Volume: Published by the Government Accountability Project, Washington DC and Seattle WA.
S. ;. Pashchenko
1st S. ;. Pashchenko
Norm Buske
2nd Norm Buske
Alexey V. Toropov
3rd Alexey V. Toropov
Abstract
EXECUTIVE SUMMARY Short-lived phosphorus-32 (P32) and long-lived strontium-90 (Sr90) at 1,000,000 Bq/Kg(dry) radioactivity have been discovered in aquatic vegetation where River Romashka enters River Tom, downstream of the huge Seversk nuclear complex in Siberia. This discovered pollution is probably the largest present-day discharge of radioactivity to the open aquatic environment, anywhere in the world. This radioactive contamination of River Tom is even relatively greater than the historic contamination of the Columbia River, when the United States turned the mighty Columbia into the most radioactive river in the world for plutonium production, at the 1960s height of Cold War nuclear weapons production at Hanford Site. The radioactive pollution now reported on River Tom is an order of magnitude greater than in the River Techa, near Chelyabinsk, which the Mayak nuclear facility has turned into an open, radioactive sewer. The radioactive pollution of River Tom from Seversk even exceeds the radioactive discharge from 10,000 commercial nuclear reactors -- more than would provide for all the world’s electrical power demand. The Seversk nuclear complex is located 25 Km north of Tomsk, a city of 500,000. Seversk is situated on north-flowing River Tom, a tributary to River Ob in Siberia. Seversk is described as “the world’s largest and greatest” nuclear complex. Seversk is also remembered historically for some of the world’s largest discharges of radioactive wastes into the environment. There were originally 5 nuclear reactors of the Siberian Chemical Combine (SCC) at Seversk. SCC still reportedly operates two closed-loop-cooled nuclear reactors (AD-4 and AD-5), uranium scrap processing services, contracted civilian nuclear fuel reprocessing (with conflicting reports whether this reprocessing is occurring), and nuclear fuel element fabrication services. The only one-through- coolant reactor at Seversk (Ivan-1) was closed in 1990. No previously identified, present-day operations at Seversk account for the short-lived fraction of the radioactivity reported here. Based on descriptions of Seversk operational history, little or no short-lived radioactivity can plausibly be released now into open surface waters from historic operations or from stored or recently imported materials. Because P32 is produced by neutron bombardment of naturally occurring P31, some unidentified, intense source of neutrons must be operating at Seversk, unannounced and out of rational control. This unidentified neutron source is presumably an unusual military reactor or, conceivably, an immense, particle accelerator.
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NEW EXPRESS METHODS FOR MEASURING THE RADON RADIOACTIVE DECAY PRODUCTS ON AEROSOLS IN OPEN ATMOSPHERE Pashenko, S.E. (ICKC), Dublyansky, Y.V. (UIGGM), Pashenko, E.F. (SSGR) – Russia К.К. Сабельфельд5, T. Carpenter6 (GAP), 5WIAS, Berlin,German 6GAP, USA.
Conference Paper · January 2001;with;710 Reads
Conference: SSGR, At Novosibirsk, Volume: 1
S. ;. Pashchenko
1st S. ;. Pashchenko
T. Carpenter
2nd T. Carpenter
+ 1
Yuri Dublyansky
3rd Yuri Dublyansky
29.32 · University of Innsbruck
Karl Sabelfeld
Last Karl Sabelfeld
34.57 · Russian Academy of Sciences
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Abstract
The new methods of continuous measuring of the decay products of radon (DPR) on aerosols have been developed on the basis of the new registering devices, Pb-screens with optimized morphology, and algorithms for noise suppressing when treating the series of fluctuating measurement data that have recently become available. The low-cost (ca. US$450) beta- and gamma sensitive radiometer Inspector (International Medcom) with the 16 cm2 detector has been used. The device has efficiency of registration for 14C (Emax (;) = 0.156 MeV) of about 10 %. Using thin screens, the long free-length background gamma emitters (<300 m) could be discriminated from short free-length beta (<10 m), characteristic of the DPR. Monitoring observations over many months have revealed semi-empirical relations between concentrations of DPR and meteorological parameters of the atmosphere. For example, during heavy rains beta-activity in the free atmosphere increases by several times possibly reflecting the effect of the "push-out" of the Rn from the upper part of the soil layer by rain water. We were able to reproduce the effect in model experiments employing a cavity excavated in soil (h = 100 cm) and monitoring the content of CO2 in it simultaneously allowing water to flow on the surface. We were able to asses the accuracy of DPR determination within the temperature range from –15 to +35 oC. The signal-to-noise ratio could be increased 5 to 10-fold by employing active air pumping through a Petrianov filter, attached to the mica screen (effective thickness 2 mg/cm2) of the Geiger counter. The obtained data could be used for the analysis of the radon emanation hazard, as well as for the assessment of the accuracy of the radiometric dating of minerals forming in open cavities by the В данном сообщении рассматриваются корреляционные сезонные связи ДПР радона с озоном и аэрозолем в пригороде города Новосибирска на высоте 15 метров. На основе полученных результатов обсуждаются принципы построения статистической модели перемешивания самых нижних слоев (не более 30- 50 метров), которые являются определяющими крупного города. Граничными условиями модели для Сибирского региона является: перенос озона только сверху, эманация радона с постоянной скоростью с поверхности земли (за исключением случаев сильных ливней), горизонтальное «время жизни» ДПР радона как функция скорости ветра. На рис приведен пример мониторинга за август – октябрь 2004 температуры, озона и ДПР радона. Видно, что в отличие от озона, у которого часто бывает полное ночное вырождение даже в эти месяцы, радон более адекватно отслеживает изменение метеоситуации в синоптическом масштабе времени. Математически это связано с локализации источника радона на поверхности земли и его небольшими вариациями. The work was supported by ISTC- N2358 and RFBR № 03-05-64548 grants.
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Ограничения U-Pb метода ;при датировании молодых минералов образовавшихся при участии коллоидной фазы \\\ Сергей Эдуардович Пащенко, ИХКиГ СО РАН Юрий Викторович Дублянский, ИМП СО РАН
Conference Paper · January 2001;with;132 Reads
Conference: 1, At Novosibirsk, Volume: 1
S. ;. Pashchenko
1st S. ;. Pashchenko
Yuri Dublyansky
2nd Yuri Dublyansky
29.32 · University of Innsbruck
Abstract
Submodel 1: Distribution of Rn isotopes and Pb in the cavity with stagnant water Submodel 2: Distribution of Rn isotopes and Pb in the cavity taking into account the movement of water Delivery of radiogenic Pb in growing opal on "radon" mechanism Submodel 3: Accumulation of Pb colloid particles Three's a source of radiogenic Pb in disgrace Conclusion U-Pb method is not suitable for absolute Dating of young (<30 Ma) minerals formed in the cavities of the colloidal phase Подмодель 1: Распределение изотопов Rn и Pb в полости с непроточной водой Подмодель 2: Распределение изотопов Rn и Pb в полости с учетом движения воды Поставка радиогенного Pb в растущий опал по «радоновому» механизму Подмодель 3: Накопление Pb на коллоидных частицах Три «источника» радиогенного Pb в опале Вывод U-Pb метод не пригоден для абсолютного датирования молодых (<30 Ma) минералов, образовавшихся в полостях из коллоидной фазы
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