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Nezávislé monitorování ETE RC SÚJB České Budějovice, návrh nezávislého monitorování ETE za MÚ RC SÚJB České Budějovice / Independent monitoring of Nuclear power plant Temelin environs by Regional centrum of SONS České Budějovice. Project of independent monitoring NPPTE in the case of Emergency incident.ZEMAN, Karel January 2010 (has links)
The State Office for Nuclear Safety (SONS) and the National Radiation Protection Institute (NRPI) are involved in independent monitoring of surrounding areas of nuclear power plants (NPPs), in accordance with the Czech legislative requirements (Decree No. 319/2002 Coll. on radiation monitoring network (RMS), as amended by Decree No. 27/2006 Coll.). The monitoring includes surveillance of environmental samples, in which radionuclides can be detected in case of emergency event, i.e. radioactivity release from the NPP. Another part of the monitoring is measurement of photon dose equivalent, continuously in the air (early detection network - SVZ) or using thermoluminescent dosimeters (TLD) placed in SONS monitoring points in the NPP vicinity. Environmental sampling and evaluation of photon dose equivalent in the air is carried out in regular intervals. The 137Cs and 131I activity is measured by gamaspectrometry method used with Gamat evaluation program, according to SONS internal procedure (VDMI). Tritium activity in surface water is measured by liquid scintillation spectrometer Beta TriCarb made by Canberra Packard Company, according to methodology CSN ISO 9698 (757635). Evaluation of dose equivalent rate is carried out continuously by LB 6360 proportional probe and LB 6500-3 Geiger-Muller tube located in RC Building in Ceske Budejovice. TLD evaluation is carried out by NRPI laboratory in Prague and the results are sent to SONS RC Ceske Budejovice. Goal of this work is to provide a set of results of the independent monitoring in surrounding areas of Temelin NPP (ETE) carried out between 1999 and 2009, by determination of volume, mass or surface activity of environmental samples (137Cs and 131I) and spot samples of water (3H) taken from SONS monitoring points near ETE . The set of such results should provide a baseline reference values for normal (pre-accident) situations. Additionally, based on the long term of the ETE surrounding surveillance, it can be shown that the ETE operation represents no threat to the health of the critical population group, and that the radiation situation in the ETE surrounding is stable. It can be also shown that the ETE operator meets requirements and conditions of authorized limits for discharging radionuclides into the environment. Procedures and method of independent environmental monitoring in the ETE surrounding during emergency events can be proposed on the basis of many years of experience with proven methodologies, experience with sampling locations, staffing and organization of measurement.
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Determinacao de tricio e estroncio-90 no controle radiologico do IPEN-CNEN/SPLEONARDO, LUCIO 09 October 2014 (has links)
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09815.pdf: 1279672 bytes, checksum: b0b13ac00bb4c31120dba8064c665328 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Metabolismo de quilomicrons em pacientes portadores de doenca arterial coronariaBRANDIZZI, LAURA I.V. 09 October 2014 (has links)
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08289.pdf: 3549738 bytes, checksum: 91c401cfdc71f7626a33edd5a3a3e5ce (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Determinação de urânio e trítio em urina de trabalhadores / Determination of uranium and tritium in workers` urineMiriam Meyer Passarelli 16 December 1977 (has links)
Foram desenvolvidos métodos de determinação de urina e trítio em urina. Para o urânio foi adaptada a técnica de análise por fluorimetria em meio sólido. O limite de sensibilidade foi de 5. 10-4µg U/0,1 ml e o erro foi de cerca de 10% para concentrações em torno de 0,05 µg U/0,1 ml. Foi padronizado para o trítio o método de análise por cintilação em meio líquido. O método determina quantidades de trítio até pelo menos 8,10-3µCi/ml e o erro foi de cerca de 4% para concentrações de trítio em torno de 0,34 µCi/l. Depois de adaptadas, as técnicas foram aplicadas a amostras de urinas de trabalhadores expostos a compostos de urânio ou trítio com a finalidade de verificar possível contaminação interna por estes radioisótopos. / Abstract not available.
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Study on Production and Reactions of Radiation-induced Defects in Ceramic Materials / セラミック材料における照射欠陥の生成と反応に関する研究 / セラミック ザイリョウ ニ オケル ショウシャ ケッカン ノ セイセイ ト ハンノウ ニ カンスル ケンキュウMoritani, Kimikazu 23 March 2009 (has links)
Kyoto University (京都大学) / 0048 / 新制・論文博士 / 博士(工学) / 乙第12335号 / 論工博第4013号 / 新制||工||1466(附属図書館) / 27190 / UT51-2009-D550 / (主査)教授 森山 裕丈, 教授 伊藤 秋男, 教授 高木 郁二 / 学位規則第4条第2項該当
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Geochemical Determination of the Fate and Transport of Injected Fresh Wastewater to a Deep Saline AquiferWalsh, Virginia M 16 July 2012 (has links)
Deep well injection into non-potable saline aquifers of treated domestic wastewater has been used in Florida for decades as a safe and effective alternative to ocean outfall disposal. The objectives of this study were to determine the fate and transport of injected wastewater at two deep well injection sites in Miami Dade County, Florida, USA. Detection of ammonium in the Middle Confining units of the Floridan aquifer above the injection zone at both sites has been interpreted as evidence of upward migration of injected wastewater, posing a risk to underground sources of drinking water. Historical water quality data, including ammonia, chloride, temperature, and pH from existing monitoring wells at both sites from 1983 to 2008, major ions collected monthly from 2006 and 2008, and a synoptic sampling event for stable isotopes, tritium, and dissolved gases in 2008, were used to determine the source of ammonium in groundwater and possible migration pathways. Geochemical modeling was used to determine possible effects of injected wastewater on native water and aquifer matrix geochemistry.
Injected wastewater was determined to be the source of elevated ammonium concentrations above ambient water levels, based on the results of major ion concentrations, tritium, dissolved noble gases and 15N isotopes analyses. Various possible fluid migration pathways were identified at the sites. Data for the south site suggest buoyancy-driven vertical pathways to overlying aquifers bypassing the confining units, with little mixing of injected wastewater with native water as it migrated upward. Once it is introduced into an aquifer, the injectate appeared to migrate advectively with the regional groundwater flow. Geochemical modeling indicated that CO2 -enriched injected wastewater allowed for carbonate dissolution along the vertical pathways, enhancing permeability along these flowpaths. At the north site, diffusive upward flow through the confining units or offsite vertical pathways were determined to be possible, however no evidence was detected for any on-site confining unit bypass pathway. No evidence was observed at either site of injected wastewater migration to the Upper Floridan aquifer, which is used as a municipal water supply and for aquifer storage and recovery.
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The Geochemistry and Runoff Process in Wolf Creek Research Basin, Whitehorse, Yukon TerritoryLi, Tianjiao January 2013 (has links)
This study investigates the runoff process and groundwater behavior in a subarctic watershed called Wolf Creek Research Basin, in Whitehorse, Yukon Territory, Canada. This basin is underlain by discontinuous permafrost that is typical of high latitude watersheds. Goundwater supports the stream flow year round and dominated the hydrology in most of the study period as baseflow. The baseflow was concentrated in dissolved ions. However, the baseflow was diluted during the melt season in May and June of 2012. Multiple chemical and isotopic tracers were used to develop a robust three-component (groundwater, soilwater and precipitation) mixing model for runoff generation. The concentrations of weathering ions decreased with the increased discharge during the melt. Soilwater was responsible for about 60% of the streamwater on the hydrograph in the melt season. The infiltration of the meltwater from the snowpack and the thawed water from the seasonal frost to the baseflow existed. The tritium concentrations indicated that there was fast moving hydrogeological system within the basin. The baseflow was also characterized as relatively enriched in both 13C and 14C, and concentrated in DIC. DIC was the major loss of carbon in Wolf Creek Research Basin.Le pergélisol est grandement sous-jacent dans les bassins-versants à haute latitude. Cette étude examine le processus de ruissellement et le comportement des eaux souterraines dans un bassin-versant subarctique de Wolf Creek, à Whitehorse, territoire du Yukon au Canada. Les eaux souterraines soutenaient l’écoulement fluvial et dominaient l’hydrographe comme débit de base durant la majorité de la période d’étude. Le débit de base était concentré d’ions dissipés. Par contre, le débit de base était dilué durant la saison des fontes au mois de mai et juin 2012. Plusieurs traceurs chimiques et isotopiques étaient utilisé afin de développer un modèle de trois composants (eau souterraine, eau interstitielle de sol et précipitation) de ruissellement. Les concentrations de la déségrégation des ions diminuaient avec l’augmentation du débit durant la fonte. Les eaux interstitielles des sols étaient responsables de 60% de l’eau de ruisseau sur l’hydrographe durant la saison de fontes. L’infiltration de l’eau de fonte du manteau neigeux et l’eau du gel du débit de base existaient. Les concentrations de tritium indiquent qu’il y avait un système hydrogéologique qui se déplaçait à grande vitesse dans les limites du bassin. Le débit de base était aussi caractérisé comme étant enrichi en 13C et 14C, avec des concentrations en carbone inorganique dissous.
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Study on tritium production property by D-T and D-D neutrons of LiPb blanket for fusion reactor / 核融合LiPbブランメットのD-T中性子とD-D中性子によるトリチウム生成に関する研究Kwon, Saerom 24 March 2014 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(エネルギー科学) / 甲第18388号 / エネ博第300号 / 新制||エネ||62(附属図書館) / 31246 / 京都大学大学院エネルギー科学研究科エネルギー変換科学専攻 / (主査)教授 小西 哲之, 教授 宇根﨑 博信, 准教授 笠田 竜太 / 学位規則第4条第1項該当 / Doctor of Energy Science / Kyoto University / DFAM
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Study on the Instability Analysis of the Liquid Metal and Application for the Fusion Energy Conversion System / 液体金属の不安定性解析と核融合エネルギー変換システムへの応用に関する研究Okino, Fumito 24 September 2014 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(エネルギー科学) / 甲第18609号 / エネ博第305号 / 新制||エネ||62(附属図書館) / 31509 / 京都大学大学院エネルギー科学研究科エネルギー変換科学専攻 / (主査)教授 小西 哲之, 教授 星出 敏彦, 教授 岸本 泰明 / 学位規則第4条第1項該当 / Doctor of Energy Science / Kyoto University / DFAM
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Liquid Scintillation Analysis of the Main Environmental Radioisotopes in Air Using a Liquid Collector with Absorption Properties / 吸収溶剤を用いた空気中主要環境放射能の液体シンチレーション分析Kato, Takahisa 23 March 2023 (has links)
京都大学 / 新制・論文博士 / 博士(工学) / 乙第13545号 / 論工博第4208号 / 新制||工||1984(附属図書館) / (主査)教授 米田 稔, 教授 松井 康人, 准教授 福谷 哲 / 学位規則第4条第2項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM
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