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SAFETY RE-ASSESSMENT of AECL TEST and RESEARCH REACTORS D. J. WINFIELD Chalk River Nuclear Laboratories ATOMIC ENERGY of CANADA
309 IAEA-SM-310/ 94 SAFETY RE-ASSESSMENT OF AECL TEST AND RESEARCH REACTORS D. J. WINFIELD Chalk River Nuclear Laboratories ATOMIC ENERGY OF CANADA LIMITED 310 IAEA-SM-310/94 SAFETY RE-ASSESSMENT OF AECL TEST AND RESEARCH REACTORS ABSTRACT Atomic Energy of Canada Limited currently has four operating engineering test/research reactors of various sizes and ages; a new isotope-production reactor MAPLE-X10, under construction at Chalk River Nuclear Laboratories (CRNL), and a heating demonstration/test reactor, SDR, undergoing high-power commissioning at Whiteshell Nuclear Research Establishment (WNRE). The company is also performing design studies of small reactors for hot water and electricity production. The older reactors are ZED-2, PTR, NRX and NRU; these range in age from 42 years (NRX) to 29 years (ZED-2). Since 1984, limited-scope safety re-assessments have been underway on three of these reactors (ZED-2, NRX and NRU). ZED-2 and PTR are operated by the Reactor Physics Branch, all other reactors are operated by the respective site Reactor Operations Branches. For the older reactors the original safety reports produced were entirely deterministic in nature and based on the design-basis accident concept. The limited scope safety re-assessments for these older reactors, carried out over the past 5 years, have comprised both quantitative probabilistic safety-assessment techniques, such as event tree and fault tree analysis, and/or qualitative techniques, such as failure mode and effect analysis. The technique used for an individual assessment was dependent upon the specific scope required. This paper discusses the types of analyses carried out, specific insights/recommendations resulting from the analysis and indicates the plan for future analysis. -
Heu Repatriation Project
HEU REPATRIATION PROJECT RATIONALE In April 2010, the governments of Canada and the United States (U.S.) committed to work cooperatively to repatriate spent highly- enriched uranium (HEU) fuel currently stored at the Chalk River Laboratories in Ontario to the U.S. as part of the Global Threat Reduction Initiative, a broad international effort to consolidate HEU inventories in fewer locations around the world. This initiative PROJECT BACKGROUND promotes non-proliferation This HEU is the result of two decades of nuclear fuel use at the by removing existing weapons Chalk River Laboratories for Canadian Nuclear Laboratories (CNL) grade material from Canada research reactors, the National Research Experimental (NRX) and and transferring it to the National Research Universal (NRU), and for the production of U.S., which has the capability medical isotopes in the NRU, which has benefitted generations of to reprocess it for peaceful Canadians. Returning this material to the U.S. in its existing solid purposes. In March 2012, and liquid forms ensures that this material is stored safely in a Prime Minister Harper secure highly guarded location, or is reprocessed into other forms announced that Canada and that can be used for peaceful purposes. the U.S. were expanding their efforts to return additional Alternative approaches have been carefully considered and inventories of HEU materials, repatriation provides the safest, most secure, and fastest solution including those in liquid form. for the permanent disposition of these materials, thereby eliminating a liability for future generations of Canadians. For more information on this project contact: Email: [email protected] Canadian Nuclear Laboratories 1-866-886-2325 or visit: www.cnl.ca persons who have a legitimate need to PROJECT GOAL know, such as police or emergency response To repatriate highly-enriched uranium forces. -
Mount Vernon Democratic Banner November 19, 1875
Digital Kenyon: Research, Scholarship, and Creative Exchange Mount Vernon Banner Historic Newspaper 1875 11-19-1875 Mount Vernon Democratic Banner November 19, 1875 Follow this and additional works at: https://digital.kenyon.edu/banner1875 Recommended Citation "Mount Vernon Democratic Banner November 19, 1875" (1875). Mount Vernon Banner Historic Newspaper 1875. 19. https://digital.kenyon.edu/banner1875/19 This Book is brought to you for free and open access by Digital Kenyon: Research, Scholarship, and Creative Exchange. It has been accepted for inclusion in Mount Vernon Banner Historic Newspaper 1875 by an authorized administrator of Digital Kenyon: Research, Scholarship, and Creative Exchange. For more information, please contact [email protected]. - ($2,00 Per Annul!l i n A dvance, L. HARPER, Editcr an~ Propriet) A FAMILY NEWSPAPER-DEVO'l'ED 'IO POLITICS, NEWS, AGRICULTURE, LITERATURE, THE ARTS AND SCIENCES, EDUCATION, THE MARKETS, &c. 7voLUME XXXIX. MOUNT VERNON, OHIO: ]fµIDAY, NOVEMBER 19, 187 5.' NUMBER 29. 'rl\AVDLl'l:R.'S GUIDl:I. TUE l'A VOIU'i'E Cllll,D. cbariuin.~ apparition put all such ideas to A Shrewd Sausage Dealer. A R oyal Scandal. ~ ll ~01:ts off t}itl'lt£l11t~lu;. ·1875. FALL 1875. l --o-- 1 J1ight. Dumb nnd motionlc8" sho stood Th3 other.day, about no0n, a youogman I A lcrribloatory cornea from Spain, whicb . ·-·-·"---•----~-.. ~y N:™3. S. M. D. rIATT. l for the poor soul Dever could perform in1• loft iu charge of one of the law uffice;; on 'if truo, do,troy• all hopas of a decent go,• T'· C!evcland I Mt. -
Marx, Windows Into the Soul: Surveillance and Popular Culture, Chapter A
Marx, Windows Into the Soul: Surveillance and Popular Culture, Chapter A Culture and Contexts (intro from printed book) News stories don’t satisfy on a human level. We know that Guantanamo is still open, but do we really know what that means?’ The idea is to experience an emotional understanding, so it’s not just an intellectual abstraction. -Laura Poitras, filmmaker The structure, process and narrative units that make up most of the book rely on language in presenting facts and argument. In contrast, the emphasis in this unit is on forms of artistic expression. .Images and music are one component of the culture of surveillance that so infuses our minds and everyday life. The symbolic materials and meanings of culture are social fabrications (though not necessarily social deceptions). They speak to (and may be intended to create or manipulate) needs, aspirations, and fears. Culture communicates meaning and can express (as well as shape) the shared concerns of a given time period and place. Surveillance technology is not simply applied; it is also experienced by agents, subjects, and audiences who define, judge and have feelings about being watched or a watcher. Our ideas and feelings about surveillance are somewhat independent of the technology per se. As with the devil in Spanish literary tradition (image below) the artist can serve to take the lid off of what is hidden, revealing deeper meanings. Here the artist acts in parallel to the detective and the whistleblower: Marx, Windows Into the Soul: Surveillance and Popular Culture, Chapter A In the original version of the book I divided the cultural materials into two units. -
NPR81: South Korea's Shifting and Controversial Interest in Spent Fuel
JUNGMIN KANG & H.A. FEIVESON Viewpoint South Korea’s Shifting and Controversial Interest in Spent Fuel Reprocessing JUNGMIN KANG & H.A. FEIVESON1 Dr. Jungmin Kang was a Visiting Research Fellow at the Center for Energy and Environmental Studies (CEES), Princeton University in 1999-2000. He is the author of forthcoming articles in Science & Global Security and Journal of Nuclear Science and Technology. Dr. H.A. Feiveson is a Senior Research Scientist at CEES and a Co- director of Princeton’s research Program on Nuclear Policy Alternatives. He is the Editor of Science and Global Security, editor and co-author of The Nuclear Turning Point: A Blueprint for Deep Cuts and De-alerting of Nuclear Weapons (Brookings Institution, 1999), and co-author of Ending the Threat of Nuclear Attack (Stanford University Center for International Security and Arms Control, 1997). rom the beginning of its nuclear power program could reduce dependence on imported uranium. During in the 1970s, the Republic of Korea (South Ko- the 1990s, the South Korean government remained con- Frea) has been intermittently interested in the cerned about energy security but also began to see re- reprocessing of nuclear-power spent fuel. Such repro- processing as a way to address South Korea’s spent fuel cessing would typically separate the spent fuel into three disposal problem. Throughout this entire period, the constituent components: the unfissioned uranium re- United States consistently and effectively opposed all maining in the spent fuel, the plutonium produced dur- reprocessing initiatives on nonproliferation grounds. We ing reactor operation, and the highly radioactive fission review South Korea’s evolving interest in spent fuel re- products and transuranics other than plutonium. -
National Neutron Strategy-Draft
DRAFT FOR CONSULTATION A National Strategy for Materials Research with Neutron Beams: Discussion on a “National Neutron Strategy” This consultation draft was updated in February 2021, following the outcomes of the Canadian Neutron Initiative Roundtable: Towards a National Neutron Strategy, organized in partnership with CIFAR on December 15–16, 2020. 1 DRAFT FOR CONSULTATION This Canadian Neutron Initiative (CNI) discussion paper and associated Roundtable Meeting are produced in partnership with CIFAR. We also thank the following sponsors: 2 DRAFT FOR CONSULTATION Contents 1 Executive summary and overview of the national neutron strategy ................................................... 5 2 Consultation on the strategy ................................................................................................................ 9 3 The present: A strong foundation for continued excellence .............................................................. 10 3.1 The Canadian neutron beam user community ........................................................................... 10 3.2 McMaster University ................................................................................................................... 14 3.3 Other neutron beam capabilities and interests .......................................................................... 15 4 Forging foreign partnerships ............................................................................................................... 17 4.1 Global renewal of advanced neutron sources ........................................................................... -
Inventory of Radioactive Waste in Canada 2016 Inventory of Radioactive Waste in Canada 2016 Ix X 1.0 INVENTORY of RADIOACTIVE WASTE in CANADA OVERVIEW
Inventory of RADIOACTIVE WASTE in CANADA 2016 Inventory of RADIOACTIVE WASTE in CANADA 2016 Photograph contributors: Cameco Corp.: page ix OPG: page 34 Orano Canada: page x Cameco Corp.: page 47 BWX Technologies, Inc.: page 2 Cameco Corp.: page 48 OPG: page 14 OPG: page 50 OPG: page 23 Cameco Corp.: page 53 OPG: page 24 Cameco Corp.: page 54 BWX Technologies, Inc.: page 33 Cameco Corp.: page 62 For information regarding reproduction rights, contact Natural Resources Canada at [email protected]. Aussi disponible en français sous le titre : Inventaire des déchets radioactifs au Canada 2016. © Her Majesty the Queen in Right of Canada, as represented by the Minister of Natural Resources, 2018 Cat. No. M134-48/2016E-PDF (Online) ISBN 978-0-660-26339-7 CONTENTS 1.0 INVENTORY OF RADIOACTIVE WASTE IN CANADA OVERVIEW ���������������������������������������������������������������������������������������������� 1 1�1 Radioactive waste definitions and categories �������������������������������������������������������������������������������������������������������������������������������������������������� 3 1�1�1 Processes that generate radioactive waste in canada ����������������������������� 3 1�1�2 Disused radioactive sealed sources ����������������������������������������� 6 1�2 Responsibility for radioactive waste �������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 6 1�2�1 Regulation of radioactive -
Events, Places and Things and Their Place in Lehi History
Events, Places and Things and their Place in Lehi History Abel John Evans Law Offices ● The Lehi Commercial and Savings Bank was the Law Offices of Abel John Evans in 1905. Adventureland Video ● Established in the Old Cooperative building at 197 East State in 1985. Alahambra Saloon ● This was a successful saloon ran by Ulysses S. Grant(not the President) for a few short years in the Hotel Lehi (Lehi Hotel) In 1891 through approximately 1895. ● The address was 394 West Main Street. American Fork Canyon Power Plant ● When the power plant was closed, one of the cabins was sold to Robert and Kathleen Lott in 1958 and it is their home today at 270 North 300 East American Fork Canyon Railroad ● Railroad that took men to the mines in American Fork Canyon ● Henry Thomas Davis helped build the railroad in American Fork Canyon American Savings and Loan Company ● Company founded by Lehi man John Franklin Bradshaw A.O.U.W. Lodge ● A.O.U.W. Lodge met in an upper room at the Lehi Commercial and Savings Bank in 1895. ● It stands for Ancient Order of United Workmen ● The AOUW was a breakoff of the Masons. Arley Edwards Barbershop ● Opened a barbershop in 195152 in the Steele Building at 60 West Main. Athenian Club ● The Athenian Club was organized on December 27, 1909 at the home of Emmerrette Smith. She was elected the first President ● Julia Child was elected vice President and Jane Ford was elected Secretary. ● There was a charter membership of 20 members ● The colors of the club were yellow and white ● They headed the drive for a Public Library. -
Signatures of Weapon-Grade Plutonium from Dedicated Production Reactors Alexander Glaser Program on Science and Global Security, Princeton University
Signatures of Weapon-grade Plutonium from Dedicated Production Reactors Alexander Glaser Program on Science and Global Security, Princeton University 49th INMM Annual Meeting, Nashville, TN July 16, 2008 Revision 4 available at http://cstsp.aaas.org A. Glaser, Signatures of Weapon-grade Plutonium from Dedicated Production Reactors, 49th INMM Annual Meeting, July 13-17, 2008, Nashville, TN Overview Scope and Objective Quantify the range of isotopic variations that can be expected for plutonium produced with different types of dedicated production reactors Understand the relative importance of predictive versus empirical (isotopic) plutonium signatures (relevant, in particular, for nuclear forensic analysis) Methodology Neutronics calculations for several important production reactor types Using continuous-energy (MCNP) cross-section libraries to generate spectrum-averaged one-group cross-sections for burnup calculations and to assure that differences between results are not due to inconsistent cross-section data A. Glaser, Signatures of Weapon-grade Plutonium from Dedicated Production Reactors, 49th INMM Annual Meeting, July 13-17, 2008, Nashville, TN Isotope Ratio Correlations K. Mayer, M. Wallenius, and I. Ray, “Nuclear Forensics — A Methodology Providing Clues on the Origin of Illicitly Trafficked Nuclear Materials,” Analyst, Royal Society of Chemistry, 130 (2005), pp. 433–441 Production Reactor Types A. Glaser, Signatures of Weapon-grade Plutonium from Dedicated Production Reactors, 49th INMM Annual Meeting, July 13-17, 2008, Nashville, TN Production Reactor Types Graphite moderated Heavy-water moderated Driver fuel with external H2O cooled CO2 cooled H2O cooled D2O cooled DU targets United States Hanford Savannah River Russia “Tomsk-7” U.K. Calder Hall France G-Series Célestin China “Jiuquan” Israel Dimona India Cirus/NRX Dhruva Pakistan Khushab DPRK Yongbyon A. -
Fuels for Canadian Research Reactors
XA04C1592 FUELS FOR CANADIAN RESEARCH REACTORS M. A. Feraday Atomic Energy of Canada, Ltd. Chalk River, Ontario INTRODUCTION Originallywhen I was requested to attend the meetingit was to be as an observer. Last Friday David Stahl asked if I would make an informal presenta- tion on the Canadian situation. The remarks I will make will be of a general -nature and should not necessarily be construed as official policy of AECL. They will be personal observations on several aspects of the program. Although my 22 years experience in the nuclear field ranges from reactor operations, fuel development, and now designing of remotely operated fuel plants for gamma active 233U-Th fuels, I am not expert in the fields of reactor physics, reactor safety, and the political implications of changing the enrichment in our two large research reactors. So what I would like to do this morning is: - say a few words on the uranium silicide fuels for which we have significant fabrication, irradiationand defect performance experience. - describe the two Canadian high flux research reactors which use high enrichment uranium (HEU) and the fuels currently used in these reactors. - comment on the limited fabrication work we are doing on Al-U alloys to uranium contents as high as 40 wt%. This work is aimed at our fast neutron program. I will then try and apply this experience in general terms to the NRX and NRU designs of fuel. U3Si PROGRAM For a period of about 10 years AECL had a significant program looking into the possibility of developing U3Si as a high density replacement for the U02 pellet fuel in use in CANDU power reactors. -
The Slowpoke Licensing Model
AECL—9981 CA9200276 AECL-9981 ATOMIC ENERGY ENERGIEATOMIQUE OF CANADA LIMITED DU CANADA LIMITEE THE SLOWPOKE LICENSING MODEL LE MODELE D'AUTORISATION DE CONSTRUIRE DE SLOWPOKE V.G. SNELL, F. TAKATS and K. SZIVOS Prepared for presentation at the Post-Conference Seminar on Small- and Medium-Sized Nuclear Reactors San Diego, California, U S A. 1989 August 21-23 Chalk River Nuclear Laboratories Laboratoires nucleates de Chalk River Chalk River, Ontario KOJ 1J0 August 1989 aout ATOMIC ENERGY OF CANADA LIMITED THE SLOWPOKE LICENSING MODEL by V.G. Snell, F. Takats and K. Szivos Prepared for presentation at the Post-Conference Seminar on Small- and Medium-Sized Nuclear Reactors San Diego, California, U.S.A. 1989 August 21-23 Local Energy Systems Business Unit Chalk River Nuclear Laboratories Chalk River, Ontario KOJ 1JO 1989 August ENERGIE ATOMIQUE DU CANADA LIMITED LE MODELS D'AUTORISATION DE CONSTRUIRE DE SLOWPOKE par V.G. Snell, F. Takats et K. Szivos Resume Le Systeme Energetique SLOWPOKE (SES-10) est un reacteur de chauffage de 10 MW realise au Canada. II pent fonctionner sans la presence continue d'un operateur autorise et etre implante dans des zones urbaines. II a des caracteristiques de surete indulgentes dont des echelles de temps transitoires de l'ordre d'heures. On a developpe, au Canada, un precede appele autorisation de construire "d'avance" pour identifier et resoudre les questions reglementaires au debut du processus. Du fait du marche possible, en Hongrie, pour le chauffage nucleaire urbain, on a etabli un plan d'autorisation de construire qui comporte 1'experience canadienne en autorisation de construire, identifie les besoins particuliers de la Hongrie et reduit le risque de retard d'autorisation de construire en cherchant 1'accord de toutes les parties au debut du programme. -
Canada's Chalk River
Volume 15, No. 39 Published by BNL Personnel Office June 5,1962 EIGHTEENTH BROOKHAVEN LECTURE CANADA’S CHALK RIVER by JOHN BLEWETT, Accelerator Dept. Title: “Accelerators of the Future” With the following article on Canada’s Chalk River facility, the BULLETIN BOARD continues its series on BNL’s sister laboratories in this country and Lecture Hall, 8:00 p.m., Wed., June 13 similar laboratories abroad. A buffet supper ($2.75) will be served at the Brookhaven Center before the lecture, beginning ot 600 p.m. Reselva- tions should be made ot least one (day in advance by calling Ext. 2302 before 500 p.m., or Ext. 2453 in the evenings. Refreshments will be available in the Research Staff Lobby following the lecture. FOURTH PEGRAM LECTURESHIP This year, the Pegram Lectures will be given in June rather than in the autumn. The George B. Pegram Lecturer for 1962 is Professor Derek J. de Solla Price of Yale University, who is an eminent historian of science. In his lecture series, entitled “Little Science, Big Science,” Professor Price will consider the chang- ing circumstances in the life of the Night view of the ChalkRiver establishment of Atomic Energy of Canada Limited. scientist since the late nineteenth cen- tury and the profound effects which Canada’s main atomic research and development center is located at these changes have had on the behavior Chalk River, Ontario, and is operated by the crown company, Atomic Energy and attitude of scientists as well as on of Canada Limited. AECL is an agency of the federal Canadian government their organizations and publications.