Science & Global Security最新文献_第8页

Accident Scenarios Involving Pebble Bed High Temperature Reactors 涉及球床高温反应堆的事故情景

IF 0.7

Science & Global Security Pub Date : 2017-01-02 DOI: 10.1080/08929882.2017.1275320

M. Englert, F. Frieß, M. Ramana

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引用次数: 6

BN-800: Spent Fuel Dose Rates and the Plutonium Management and Disposition Agreement BN-800:乏燃料剂量率和钚管理和处置协议

IF 0.7

Science & Global Security Pub Date : 2016-09-01 DOI: 10.1080/08929882.2016.1235391

F. Frieß, M. Kütt

{"title":"BN-800: Spent Fuel Dose Rates and the Plutonium Management and Disposition Agreement","authors":"F. Frieß, M. Kütt","doi":"10.1080/08929882.2016.1235391","DOIUrl":"https://doi.org/10.1080/08929882.2016.1235391","url":null,"abstract":"ABSTRACT In 2000, Russia and the United States signed the Plutonium Management and Disposition Agreement to dispose of 34 tons of declared excess weapon plutonium each. A 2010 amendment allows Russia to dispose of its weapon-grade plutonium as MOX fuel in its BN-600 and BN-800 fast reactors with the condition that 30 years after irradiation the spent fuel must still emit at least one sievert per hour. Using depletion simulations for the BN-800 reactor, this note presents dose rates for fuel and blanket materials after different irradiation and cooling times. After the full irradiation time of 420 days, the fuel fulfills the disposition criteria. This is not true for shorter irradiation times, however. Furthermore, the dose rate from blanket elements, which breed weapon grade plutonium, declines even more quickly after irradiation. For some blanket element positions, the spent fuel standard is not fulfilled after 960 days of irradiation. To provide confidence in the agreement, Russia, the United States and the International Atomic Energy Agency should agree on monitoring of reactor power and irradiation times for plutonium disposition in such fast reactors.","PeriodicalId":55952,"journal":{"name":"Science & Global Security","volume":"28 1","pages":"204 - 209"},"PeriodicalIF":0.7,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91271250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Editors' Note 编者注

IF 0.7

Science & Global Security Pub Date : 2016-09-01 DOI: 10.1080/08929882.2016.1235375

M. Montesano, B. Loh, T. Chong

{"title":"Editors' Note","authors":"M. Montesano, B. Loh, T. Chong","doi":"10.1080/08929882.2016.1235375","DOIUrl":"https://doi.org/10.1080/08929882.2016.1235375","url":null,"abstract":"The present issue of SOJOURN features five research articles bearing on religion, on archaeology and heritage, and on the on-the-ground realities of ASEAN integration. The contributions touching on religion treat extra-regional contacts, official accommodation of beliefs long concealed as unorthodox and the intersection of religious practice and ethnic identity. With great erudition, John Chen examines Chinese Muslims’ interest in Southeast Asia as an important part of the wider Islamic world during the first half of the twentieth century. Focusing on scholarship on materia medica and on the remarkable story of the Chinese Islamic South Seas Delegation’s visit to Malaya, Chen illuminates a clear interest among Chinese Muslims in Islamic lands beyond just those of the Arab Middle East. He understands that interest in “civilizational” terms. Philippe Peycam’s article examines the history and dynamics of the International Coordination Committee for the Safeguarding of the Historic Site of Angkor and assesses its negotiation among international, national and local interests as those interests intersect at a UNESCO World Heritage Site. He focuses on the interaction with Cambodian authorities of the representatives of France and Japan, which have co-chaired that committee, and expresses scepticism about the usefulness of the Angkor committee as a model for effective stewardship of World Heritage Sites in other parts of the world. In a second article on Cambodia, Emiko Stock offers a lively and iconoclastic treatment of the Cham rituals of the Imam San Mawlid and the Mamun possession ceremony to interrogate the ethnic categorization that would distinguish Cham from Khmer. Her article makes an important, and extremely enjoyable, contribution to our efforts to rethink conceptions of identity, ethnicity and history in contemporary Southeast Asia.","PeriodicalId":55952,"journal":{"name":"Science & Global Security","volume":"24 1","pages":"139 - 140"},"PeriodicalIF":0.7,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78149857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nuclear High-level Waste Tank Explosions: Potential Causes and Impacts of a Hypothetical Accident at India's Kalpakkam Reprocessing Plant 高放射性核废料罐爆炸:印度Kalpakkam后处理工厂假想事故的潜在原因和影响

IF 0.7

Science & Global Security Pub Date : 2016-09-01 DOI: 10.1080/08929882.2016.1237661

M. Ramana, A. Nayyar, M. Schoeppner

{"title":"Nuclear High-level Waste Tank Explosions: Potential Causes and Impacts of a Hypothetical Accident at India's Kalpakkam Reprocessing Plant","authors":"M. Ramana, A. Nayyar, M. Schoeppner","doi":"10.1080/08929882.2016.1237661","DOIUrl":"https://doi.org/10.1080/08929882.2016.1237661","url":null,"abstract":"ABSTRACT Tanks holding liquid high level waste from reprocessing spent fuel have large inventories of highly radioactive materials. These tanks could potentially be damaged by a variety of chemical explosions, leading to the dispersion of a significant fraction of their radioactive contents. This article describes some of the different chemical explosions that could occur and examines how such explosions could occur at the Kalpakkam Reprocessing Plant in India, which likely stores a large volume of high level liquid waste because vitrification of that waste did not begin until more than 15 years after the plant began operating in 1998. The atmospheric dispersion of the hypothetical radioactive release is modeled using the Hybrid Single-Particle Lagrangian Integrated Trajectory Model developed by the Air Research Laboratory of the U.S. National Oceanic and Atmospheric Administration. The results suggest that the modeled accident scenario would lead to nearly 97,000 cancers, with roughly 47,000 of these being fatal. Larger radioactive releases are possible and would lead to proportionately higher incidence of cancer and cancer-caused mortality.","PeriodicalId":55952,"journal":{"name":"Science & Global Security","volume":"129 1","pages":"174 - 203"},"PeriodicalIF":0.7,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77643522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

EOV Editorial Board EOV编委会

IF 0.7

Science & Global Security Pub Date : 2016-09-01 DOI: 10.1080/08929882.2016.1245021

引用次数: 0

Reducing the Danger from Fires in Spent Fuel Pools 减少乏燃料池火灾的危险

IF 0.7

Science & Global Security Pub Date : 2016-09-01 DOI: 10.1080/08929882.2016.1235382

F. V. von Hippel, M. Schoeppner

引用次数: 14

Potential Signatures and the Means of Detecting a Hypothetical Ground Source Cooled Nuclear Reactor 假想地源冷却核反应堆的电位特征和探测方法

IF 0.7

Science & Global Security Pub Date : 2016-05-03 DOI: 10.1080/08929882.2016.1184529

L. Kim, R. Jungwirth, G. Renda, E. Wolfart, G. Cojazzi

引用次数: 4

On the Origins and Significance of the Limit Demarcating Low-Enriched Uranium from Highly Enriched Uranium 低浓铀与高浓铀界限的起源及意义

IF 0.7

Science & Global Security Pub Date : 2016-05-03 DOI: 10.1080/08929882.2016.1184533

Andrew Brown, A. Glaser

引用次数: 6

A Proliferation Assessment of Third Generation Laser Uranium Enrichment Technology 第三代激光铀浓缩技术的扩散评估

IF 0.7

Science & Global Security Pub Date : 2016-05-03 DOI: 10.1080/08929882.2016.1184528

Ryan Snyder

{"title":"A Proliferation Assessment of Third Generation Laser Uranium Enrichment Technology","authors":"Ryan Snyder","doi":"10.1080/08929882.2016.1184528","DOIUrl":"https://doi.org/10.1080/08929882.2016.1184528","url":null,"abstract":"ABSTRACT Long-standing efforts to develop a commercially viable laser-based process for uranium enrichment, initially with atomic and later molecular isotope separation, have had limited success. This article discusses a model for a third generation of laser enrichment technology where CO2 laser light is Raman scattered to generate 16 μm photons that excite a vibrational mode in uranium-235 hexafluoride molecules within an adiabatically expanding free carrier gas jet, allowing for the partial separation of uranium isotopes by condensation repression. The SILEX (Separation of Isotopes by Laser Excitation) process being developed as part of the Global Laser Enrichment project may be one example of this separation technique. An ideal, asymmetric cascade for enriching uranium to weapon-grade levels is presented, and an analysis of the minimum laser performance requirements is included. Optimal running parameters, physical space constraints, and energy efficiency estimates are discussed. An assessment of the technical skills required is also provided. Finally, material available in an online supplement discusses possible lasers that may be utilized in such a process, and offers an introduction to dimer formation, a laser-based enrichment cascade, and a model for estimating the enrichment factor.","PeriodicalId":55952,"journal":{"name":"Science & Global Security","volume":"57 1","pages":"68 - 91"},"PeriodicalIF":0.7,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79038386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Detection of Breeding Blankets Using Antineutrinos 利用反中微子探测繁殖毯

IF 0.7

Science & Global Security Pub Date : 2016-04-16 DOI: 10.1080/08929882.2016.1184531

B. Cogswell, P. Huber

引用次数: 16