Neutron Activation Cross Sections for Fission and Fusion Energy Applications
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Production of Radionuclides
CHAPTER 15 Production of Radionuclides Contents 15.1. General considerations 389 15.2. Irradiation yields 390 15.3. Second-order reactions 393 15.4. Target considerations 397 15.4.1. Physical properties 397 15.4.2. Chemical properties 398 15.5. Product specifications 399 15.5.1. Radiochemical processing 399 15.5.2. Specific activity 400 15.5.3. Labeling 400 15.5.4. Radiochemical purity 401 15.6. Recoil separations 402 15.6.1. Target recoil products 402 15.6.2. Hot atom reactions 403 15.6.3. The Szilard-Chalmers process 404 15.7. Fast radiochemical separations 406 15.7.1. Production of 11C labeled compounds 407 15.7.2. Auto-batch procedures 407 15.7.3. On-line procedures: gas-phase separation 409 15.7.4. On-line procedures: solvent extraction 412 15.7.5. Mass separator procedures 412 15.8. Exercises 412 15.9. Literature 414 This chapter discusses production of radionuclides for beneficial use in science, medicine and technology. The nuclear fundamentals for the production processes have been given in Chapters 11 to 14. The formation of radionuclides is discussed in several Chapters: e.g. cosmogenic reactions leading to the formation of short-lived radionuclides in nature (Ch. 5 and 10); thermonuclear reactions leading to the formation of long-lived radioactivity in the universe (Ch. 17); the synthesis of trans-uranium elements (Ch. 16 and 19-21). The production and isolation of separated fission products is treated separately (Ch. 19-21). This chapter discusses aspects of fundamental importance to the production of radionuclides by a variety of methods. -
Nuclear Power
No.59 z iii "Ill ~ 2 er0 Ill Ill 0 Nuclear Family Pia nning p3 Chernobyl Broadsheet ·, _ I. _ . ~~~~ George Pritchar d speaks CONTENTS COMMENT The important nuclear development since the Nuclear Family Planning 3 last SCRAM Journal was the Government's The CEGB's plans, and the growing opposition, after Sizewell B by go ahead for Sizewell B: the world's first HUGH RICHARDS. reactor order since Chernobyl, and Britain's News 4-6 first since the go ahead was given to Torness Accidents Will Happen 1 and Heysham 2 in 1978. Of great concern is Hinkley Seismic Shocker 8-9 the CEGB's announced intention to build "a A major article on seismic safety of nuclear plants in which JAMES small fanilty• of PWRs, starting with Hinkley GARRETT reveals that Hinkley Point C. At the time of the campaign In the Point sits on a geological fault. south west to close the Hinkley A Magnox Trouble at Trawsfynydd 10-11 station, and .a concerted push in Scotland to A summary of FoE's recent report on increasing radiation levels from prevent the opening of Torness, another Trawsfynydd's by PATRICK GREEN. nuclear announcement is designed to divide Pandora's POX 12 and demoralise the opposition. But, it should The debate over plutonium transport make us more determined. The article on the to and from Dounreay continues by facing page gives us hope: the local PETE MUTTON. authorities on Severnside are joining forces CHERNOBYL BROADSHEET to oppose Hinkley C, and hopefully they will Cock-ups and Cover-ups work closely with local authorities in other "Sacrificed to • • • Nuclear Power" threatened areas - Lothian Region, The Soviet Experience Northumberland, the County Council Coalition "An Agonising Decision• 13 against waste dumping and the Nuclear Free GEORGE PRITCHARD explains why Zones - to formulate a national anti-nuclear he left Greenpeoce and took a job strategy. -
Measurement and Analysis of the Resolved Resonance Cross Sections of the Natural Hafnium Isotopes
CORE Metadata, citation and similar papers at core.ac.uk Provided by University of Birmingham Research Archive, E-theses Repository MEASUREMENT AND ANALYSIS OF THE RESOLVED RESONANCE CROSS SECTIONS OF THE NATURAL HAFNIUM ISOTOPES by TIMOTHY CHRISTOPHER WARE A thesis submitted to The University of Birmingham for the degree of DOCTOR OF PHILOSOPHY School of Physics and Astronomy College of Engineering and Physical Sciences The University of Birmingham June 2010 University of Birmingham Research Archive e-theses repository This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder. ABSTRACT Hafnium is a ductile metallic element with a large neutron absorption cross section. It can be used in reactor control rods to regulate the fission process. The NEA High Priority Request List for nuclear data presents a need for improved characterisation of the hafnium cross section in the resolved resonance region. This thesis presents new resonance cross section parameters for the six natural hafnium isotopes. Cross section measurements, supported by the NUDAME and EUFRAT projects, were performed at the IRMM Geel GELINA time-of-flight facility. Capture experiments were conducted on the 12 m, 28 m and 58 m flight paths using C6D6 detectors and transmission experiments were performed at flight paths of 26 m and 49 m using a 6Li glass detector. -
First Search for $\Alpha $ Decays of Naturally Occurring Hf Nuclides With
First search for α decays of naturally occurring Hf nuclides with emission of γ quanta F.A. Danevicha,1, M. Hultb, D.V. Kasperovycha, G.P. Kovtunc,d, K.V. Kovtune, G. Lutterb, G. Marissensb, O.G. Polischuka, S.P. Stetsenkoc, V.I. Tretyaka aInstitute for Nuclear Research, 03028 Kyiv, Ukraine bEuropean Commission, Joint Research Centre, Retieseweg 111, 2440 Geel, Belgium cNational Scientific Center Kharkiv Institute of Physics and Technology, 61108 Kharkiv, Ukraine dKarazin Kharkiv National University, 61022 Kharkiv, Ukraine ePublic Enterprise “Scientific and Technological Center Beryllium”, 61108 Kharkiv, Ukraine Abstract The first ever search for α decays to the first excited state in Yb was performed for six isotopes of hafnium (174, 176, 177, 178, 179, 180) using a high purity Hf-sample of natural isotopic abundance with a mass of 179.8 g. For 179Hf, also α decay to the ground state of 175Yb was searched for thanks to the β-instability of the daughter nuclide 175Yb. The measurements were conducted using an ultra low-background HPGe-detector system located 225 m underground. After 75 d of data taking no decays were detected but lower 15 18 bounds for the half-lives of the decays were derived on the level of lim T1/2 ∼ 10 −10 a. The decay with the shortest half-life based on theoretical calculation is the decay of 174Hf to the first 2+ 84.3 keV excited level of 170Yb. The experimental lower bound was found 15 to be T1/2 ≥ 3.3 × 10 a. Keywords: Alpha decay; 174Hf, 176Hf, 177Hf, 178Hf, 179Hf, 180Hf, Low-background HPGe γ spec- trometry arXiv:1911.02597v1 [nucl-ex] 6 Nov 2019 1 INTRODUCTION Alpha decay is one of the most important topics of nuclear physics both from the theoretical and experimental points of view. -
2.10. Neutron Activation of Paintings
2.10. Neutron activation of paintings Possible applications: • Pigment analysis by activation techniques • Neutron radiography by neutron absorption ⇒ Autoradiography Requires neutron irradiation of the entire painting using homogenous neutron flux followed by subsequent point by point raster activation measurement. Technical approach with reactors Neutron guide line is needed for providing sufficient neutron flux (~1014 neutrons/cm2/s) for activation of bulky materials outside the reactor core! 4,7 m shielding door shielding neutrons painting 2.5 m Activation with subsequent X-ray and γ-ray detection 63Cu(n,γ)64Cu, Cu(x) 202Hg(n,γ)203Hg, Hg(x) X-ray data provides pigment position γ-ray data provides pigment characteristics Timescale and Radiation Sensitivity Anthony van Dyck, Saint Rosalie praying for the Plague stricken of Palermo 1624 radiograph Pigment identification by analysis of time dependence for characteristic activity 3rd run Pigment identification by analysis of time dependence for characteristic activity 6th run Pigment identification by analysis of time dependence for characteristic activity 8th run Young man in the background Maryan Wynn Ainsworth et al. Art and Autoradiography; Metropolitan Museum of Art, New York; (1987) 12-18 Van Dyck Self-Portrait Head also visible in X-ray radiograph Self-Portrait of van Dyck 1622 St. Sebastian ca 1649 Painting in the Gemäldegalerie Berlin original by Georges de la Tour (1593-1652) French Court Painter Original in Louvre, question about authorship of copy, George de la Tour himself or by his son Entienne de la Tour? Neutron radiated 109 n/cm2s Neutron induced γ activity is recorded in different time steps: e.g. -
4.62 Samarium
IUPAC 4.62 samarium Stable Relative Mole isotope atomic mass fraction 144 Sm 143.912 01 0.0308 147 † Sm 146.914 90 0.1500 148 Sm † 147.914 83 0.1125 149 Sm 148.917 19 0.1382 150 Sm 149.917 28 0.0737 152 Sm 151.919 74 0.2674 154 Sm 153.922 22 0.2274 † Radioactive isotope having a relatively long half-life and a characteristic terrestrial isotopic composition that contributes significantly and reproducibly to the determination of the standard atomic weight of the element in normal materials . The half-lives of 147 Sm and 148 Sm are 1.06 × 10 11 years and 7 × 10 15 years, respectively. 4.62.1 Samarium isotopes in Earth/planetary science One possible origin for the Moon is from debris ejected by an indirect giant impact of Earth by an astronomical body the size of Mars when the Earth was forming [433]. The kinetic energy liberated is thought to have melted a large part of the Moon forming a lunar magma ocean. P.O. 13757, Research Triangle Park, NC (919) 485-8700 IUPAC Samarium isotope measurement results [434], along with measurements of isotopes of hafnium, tungsten, and neodymium[435], suggest that lunar magma formed about 70 × 10 6 years after the Solar System formed and had crystallized by about 215 × 10 6 years after formation. 147 Sm is used to study the formation of potassium, rare earth elements , and phosphorus-rich rocks [436]. 4.62.2 Samarium isotopes in geochronology 147 Sm is used for determining formation ages of igneous and metamorphic rocks via analysis of the minerals which compose them, such as those shown in Figure 4.62.1 [437-439]. -
Peptide Receptor Radionuclide Therapy with Indigenous
Am J Nucl Med Mol Imaging 2020;10(4):178-211 www.ajnmmi.us /ISSN:2160-8407/ajnmmi0115339 Review Article One decade of ‘Bench-to-Bedside’ peptide receptor radionuclide therapy with indigenous [177Lu]Lu-DOTATATE obtained through ‘Direct’ neutron activation route: lessons learnt including practice evolution in an Indian setting Sandip Basu1,2, Sudipta Chakraborty2,3, Rahul V Parghane1,2, Kamaldeep2,4, Rohit Ranade1,2, Pradeep Thapa1,2, Ramesh V Asopa1,2, Geeta Sonawane1,2, Swapna Nabar1,2, Hemant Shimpi1,2, Ashok Chandak1,2, Vimalnath KV3, Vikas Ostwal2,5, Anant Ramaswamy2,5, Manish Bhandare2,6, Vikram Chaudhari2,6, Shailesh V Shrikhande2,6, Bhawna Sirohi5,7, Ashutosh Dash2,3, Sharmila Banerjee1,2 1Radiation Medicine Centre, Bhabha Atomic Research Centre, Tata Memorial Hospital Annexe, Parel, Mumbai, India; 2Homi Bhabha National Institute, Mumbai, India; 3Radiopharmaceuticals Division, BARC, Mumbai, India; 4Health Physics Division, Bhabha Atomic Research Centre, Mumbai, India; 5Department of Medical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India; 6Department of Surgical Oncology, Gastrointestinal and Hepato- Pancreato-Biliary Service, Tata Memorial Hospital, Mumbai, India; 7Apollo Proton Cancer Centre, Chennai, India Received May 30, 2020; Accepted August 14, 2020; Epub August 25, 2020; Published August 30, 2020 Abstract: The present treatise chronicles one decade of experience pertaining to clinical PRRT services in a large- volume tertiary cancer care centre in India delivering over 4,000 therapies, an exemplar of successful -
Lawrence Berkeley National Laboratory Recent Work
Lawrence Berkeley National Laboratory Recent Work Title RADIOCHEMICAL AND SPECTROMETER STUDIES OF SEVERAL NEUTRON-DEFICIENT ZIRCONIUM ISOTOPES AND THEIR DECAY PRODUCTS Permalink https://escholarship.org/uc/item/5ck8q7xw Authors Hyde, Earl K. O'Kelley, Grover D. Publication Date 1950-12-28 eScholarship.org Powered by the California Digital Library University of California UCRL- .Jt)AJ,-.64.. _.; >-w .J w ... ~ ,• 0:: w m I . ;•· <( z 0:: 0 LL ..J u<( LL 0 >- 1-- TWO-WEEK LOAN COPY (/) This is a Library Circulating Copy 0:: which may be borrowed for two weeks. w For a personal retention copy, call > Tech. Info. Diuision, Ext. 5545 z '.-o:-. :J ~~ RADIATION LABORATORY DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor the Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any · information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by its trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof, or the Regents of the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof or the Regents of the University of California. -
Technische Universität München Physik-Department Study of The
Technische Universität München Physik-Department Study of the biokinetics of zirconium isotopes in humans and its relevance to internal dosimetry Matthias Greiter Vollständiger Abdruck der von der Fakultät für Physik der Technischen Universität München zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaften genehmigten Dissertation. Vorsitzender: Univ.-Prof. Dr. J. L. van Hemmen Prüfer der Dissertation: 1. Hon.-Prof. Dr. H.G. Paretzke 2. Univ.-Prof. Dr. F. von Feilitzsch Die Dissertation wurde am 27.09.2007 bei der Technischen Universität München eingereicht und durch die Fakultät für Physik am 22.04.2008 angenommen. i Author contact information: Matthias Greiter Institute of Radiation Protection Helmholtz Zentrum München German Research Center for Environmental Health (GmbH) Ingolstaedter Landstrasse 1 85764 Neuherberg Germany E-mail: [email protected] ii Table of contents Abstract ...................................................................................................................................... 1 List of acronyms, symbols and abbreviations ............................................................................ 2 1 Aim of the study......................................................................................................... 3 1.1 Natural occurrence of zirconium compounds ............................................................ 3 1.2 Applications of stable zirconium................................................................................ 5 1.3 Applications -
Chapter 4.3 Production and Atmospheric Release of Activation
CHAPTER 4.3 PRODUCTION AND ATMOSPHERIC RELEASE OF ACTIVATION PRODUCTS ABSTRACT The primary activation product of interest in terms of airborne release and potential offsite dose is 41Ar. Even though it is a short-lived radionuclide, 41Ar is a noble gas readily released from the reactor stacks, and most has not decayed by the time it moves offsite with normal wind speeds. SRS reactor operations produced and released relatively large quantities of 41Ar, and its production rate in the air blanket surrounding a reactor should have been roughly proportional to the reactor power level. Cummins et al. (1991) provides an SRS-developed estimate of 41Ar releases, which we compare to other measurements, check against reactor power levels, and accept as a generally reasonable estimate of SRS 41Ar releases. While these values represent the best available estimates for 41Ar releases from the SRS reactors, the values presented for the later years (1974–1988) are quite low when compared to reactor power levels and overall average 41Ar production levels. We also observe that the 41Ar release values presented for certain of the early years (1955–1967) are quite high when compared to reactor power levels for the same period. The reason for these apparent discrepancies is not clear, and adds to the uncertainty in our estimates of 41Ar releases. INTRODUCTION Most of the radioactivity produced by the five SRS production reactors involved fission products, created when 235U, 239Pu, or 233U split into two or more smaller atoms. In addition, neutrons captured by some materials inside the reactor created radioactive isotopes called activation products. -
Issues and R&D Needs for Commercial Fusion Energy
University of California, San Diego UCSD-CER-08-01 Issues and R&D needs for commercial fusion energy An interim report of the ARIES technical working groups M. S. Tillack, D. Steiner, L. M. Waganer, S. Malang, F. Najmabadi, L. C. Cadwallader, L. A. El-Guebaly, R. J. Peipert Jr, A. R. Raffray, J. P. Sharpe, A. D. Turnbull, T. L. Weaver, and the ARIES Team July 2008 Center for Energy Research University of California, San Diego 9500 Gilman Drive La Jolla, CA 92093-0417 UCSD-CER-08-01 Issues and R&D needs for commercial fusion energy – An interim report of the ARIES technical working groups – August 2008 M. S. Tillack1, D. Steiner2, L. M. Waganer3, S. Malang4, F, Najmabadi1, L. C. Cadwallader5, L. A. El-Guebaly6, R. J. Peipert Jr7, A. R. Raffray1, J. P. Sharpe5, A. D. Turnbull8, T. L. Weaver7, and the ARIES Team* 1 UC San Diego 2 Rensselaer Polytechnic Institute 3 Consultant for The Boeing Company 4 FNT Consulting 5 Idaho National Laboratory 6 UW-Madison 7 The Boeing Company 8 General Atomics * Institutions involved in the ARIES Team include University of California San Diego, The Boeing Company, Georgia Institute of Technology, General Atomics, Idaho National Engineering Laboratory, Massachusetts Institute of Technology, Princeton Plasma Physics Laboratory, Rensselaer Polytechnic Institute, and the University of Wisconsin, Madison. 1 Table of Contents: 1. Introduction 2. Evaluation methodology 2.1 Technology readiness 2.2 Reference concepts 2.2.1 Reference concepts for energy capture and conversion 2.2.2 Reference concepts for the remainder of the power core 3. -
Development of a National Neutron Database for Nuclear Technology
- 7 - XA9744992 DEVELOPMENT OF A NATIONAL NEUTRON DATABASE FOR NUCLEAR TECHNOLOGY A. V. Ignatyuk, V.N. Kononov, B.D. Kuzminov, V.N. Manokhin M.N. Nikolaev, B.I. Furzov State Research Centre of the Russian Federation Institute of Physics and Power Engineering, Obninsk Abstract This paper describes the stages of a many years activities at the IPPE consisting of the measurement, theoretical description and evaluation of neutron data, and of the establishment of a national data bank of neutron data for nuclear technology. A list of libraries which are stored at the Nuclear Data Centre is given. Introduction Currently, nuclear technology has found wide applications in a number of fields in science and technology consisting of: - nuclear energy (nuclear fission reactors, nuclear fission reactors, radioisotopic sources) - nuclear transmutation (production of radioisotopes for medical and other applications, burn-up of long-lived radio nuclides, radiation alloying of semiconducting materials, etc..) - nuclear instrumentation in industry (activation analysis, nuclear micro-analysis, control of fissile materials, etc..) - scientific investigations (nuclear physics, nuclear astrophysics, medicine, radiobiology, agro-radiology, ecology, etc.). In the sphere of nuclear technology, a number of processes use more than 500 stable and radioactive nuclides in a broad energy range. To ascertain the proper functioning of nuclear installations which have various functions and applications in industrial projects and scientific investigations, there is a need for nuclear data that characterize the properties of nuclear reactions. The reliability of radiation and nuclear safety, the ecological acceptance, and the economical planning of nuclear installations, all depend on the completeness, quality and accuracy of nuclear data.