Nuclear Science, an Introductory Course. By- Sulcoskii John W
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CNS Ionising Radiation Workshop Notes
Ionising Radiation Workshop Page 1 of 82 Canadian Nuclear Society Ionising Radiation Workshop Be Aware of NORM CNS Team Bryan White Doug De La Matter Peter Lang Jeremy Whitlock First presented concurrently at: The Science Teachers’ Association of Ontario Annual Conference, Toronto; and The Alberta Teachers’ Association Science Council Conference, Calgary 2008 November 14 Revision 12 Presentation at: Association of Science Teachers Provincial Conference 2013 Halifax NS October 25th, 2013 Ionising Radiation Workshop Page 2 of 82 Revision History Revision 1: 2008-11-06 (Note revisions modify page numbers) Page Errata 10 Last paragraph: “…emit particles containing (only) two protons …” (add parentheses) 11 Table, Atomic No. 86, 1st radon mass number should be 220. 20 Insert section 3.4 Shielding – affects page numbers 24 1st paragraph: “…with the use of shielding absorbers.” (insert “shielding”) 26 1st paragraph: “… of consistent data can be time consuming.” (delete “it”) 32 List item 6, last sentence: “The container contents have an activity of about 5 kBq.” (emphasis on contents) 44 2nd paragraph, 4th sentence: “… surface exposure of 360 µSv to 8.8 mSv …” (µSv not mSv) 45 2nd paragraph, 2nd sentence: “ … radioactivity compared to thorium ore …” (delete “the”) 47 2nd paragraph: “Because the lens diameter is not much smaller …” (insert “not”) Revision 2: 2009-02-04 5 Deleted 2 pages re CNA website S 3.2 Discussion of radon decay and health hazard inserted 38 Experiment 3, Part I – results from a more extensive absorber experiment show that the alpha radiation scatters electrons from the foils with energy higher than the beta from the thorium decay chain 51 Appendix C (now D): Note added that more recent “non-divide-by-two” modules are also red in colour. -
DOCUMENT Mute
DOCUMENT mute ED 124 18 . 88 SE 019 612 TITLEN: Radioactivity .and Man iinicourse, Career Oriented Pre-Technical Physics* , INSTITUTI N Dallas Independent School District, Tex. SPONS AGE CY Bureauvof Ele*entary and Secondary tducat4.0n (D5 HEN/OE),-WashingtOn, D.C. -RUB DATE 7 For rilated 0, NOTE - 78p.; Drawings may not reproduce wel documens, see SE 018 322-333 and SE 019 605-616 , . 4 EDRS PRICE MF-$0.83 HC-$4.67 Plus Postag4. DESCRIPTOR Instructional Materialsi Physics; *Program Guides; *Radiation Effects; *Science Activities; Science .41 Careers; Science Education; *Science Materials; Secondary Zdution;.*Secondary School Science; Technical Educe ion IDENTIFIrRS Elementary Seco dart' VIAlcation ACt Title III; ESEA Title' III 07. 1 ABSTRACT .1j This instructional guide, intended for student use, develops the subject of radioactivity and can through a series. of sequential activities.. `A technical development of the subject is pursued with examples stressing practical aspects'of the concepts. Included in the minicourse are:, (1) the rationale,(2) terminal behavioral objectives, (3) enabling behavioral objectives,(4) activities,(5) resource ,packages, and (6) evaluation materials. The' * benefits as well as the dangers of radiometivity to Ian are considered.,This unit is one of twelve intended for use in.the second year of tv9 year vocationally oriented .physics. program. (CP) j t I J ***********************************************************************. * . Documents acquired by ERIC include many inforgal unpublished * materials not a40.1able.from other sources. ERIC makes every effort * * to obtiit the best copy available. Nevertheless,items of.marginel * *.reproducibility are often encountered and this-affects the quality * - *`of the microfiche and hardcopy reproductions ERIC makes available * *. -
HISTORY Nuclear Medicine Begins with a Boa Constrictor
HISTORY Nuclear Medicine Begins with a Boa Constrictor Marshal! Brucer J Nucl Med 19: 581-598, 1978 In the beginning, a boa constrictor defecated in and then analyzed the insoluble precipitate. Just as London and the subsequent development of nuclear he suspected, it was almost pure (90.16%) uric medicine was inevitable. It took a little time, but the acid. As a thorough scientist he also determined the 139-yr chain of cause and effect that followed was "proportional number" of 37.5 for urea. ("Propor inexorable (7). tional" or "equivalent" weight was the current termi One June week in 1815 an exotic animal exhibi nology for what we now call "atomic weight.") This tion was held on the Strand in London. A young 37.5 would be used by Friedrich Woehler in his "animal chemist" named William Prout (we would famous 1828 paper on the synthesis of urea. Thus now call him a clinical pathologist) attended this Prout, already the father of clinical pathology, be scientific event of the year. While he was viewing a came the grandfather of organic chemistry. boa constrictor recently captured in South America, [Prout was also the first man to use iodine (2 yr the animal defecated and Prout was amazed by what after its discovery in 1814) in the treatment of thy he saw. The physiological incident was common roid goiter. He considered his greatest success the place, but he was the only person alive who could discovery of muriatic acid, inorganic HC1, in human recognize the material. Just a year earlier he had gastric juice. -
Uses of Isotopic Neutron Sources in Elemental Analysis Applications
EG0600081 3rd Conference on Nuclear & Particle Physics (NUPPAC 01) 20 - 24 Oct., 2001 Cairo, Egypt USES OF ISOTOPIC NEUTRON SOURCES IN ELEMENTAL ANALYSIS APPLICATIONS A. M. Hassan Department of Reactor Physics Reactors Division, Nuclear Research Centre, Atomic Energy Authority. Cairo-Egypt. ABSTRACT The extensive development and applications on the uses of isotopic neutron in the field of elemental analysis of complex samples are largely occurred within the past 30 years. Such sources are used extensively to measure instantaneously, simultaneously and nondestruclively, the major, minor and trace elements in different materials. The low residual activity, bulk sample analysis and high accuracy for short lived elements are improved. Also, the portable isotopic neutron sources, offer a wide range of industrial and field applications. In this talk, a review on the theoretical basis and design considerations of different facilities using several isotopic neutron sources for elemental analysis of different materials is given. INTRODUCTION In principle there are two ways to use neutrons for elemental and isotopic abundance analysis in samples. One is the neutron activation analysis which we call it the "off-line" where the neutron - induced radioactivity is observed after the end of irradiation. The other one we call it the "on-line" where the capture gamma-rays is observed during the neutron bombardment. Actually, the sequence of events occurring during the most common type of nuclear reaction used in this analysis namely the neutron capture or (n, gamma) reaction, is well known for the people working in this field. The neutron interacts with the target nucleus via a non-elastic collision, a compound nucleus forms in an excited state. -
H*(10) Y Fluencias En Un Irradiador De Neutrones Con Una Fuente De Ra-Be
ISSSD 2020 ONLINE _________________________________________________________________________________ H*(10) y fluencias en un irradiador de neutrones con una fuente de 226Ra-Be Bedher O. Vega-Cabrera1,*, Héctor René Vega-Carrillo2, Víctor M. Viera Castillo1, César J. Guevara Pillaca1, Patrizia E., Pereyra Anaya1 María E. López Herrera1, Daniel F. Palacios Fernández1 1Pontificia Universidad Católica del Perú, Sección de Física. Av. Universitaria 1801, Apartado 1761, Lima – Perú. 2Universidad Autónoma de Zacatecas, Unidad Académica de Estudios Nucleares, C. Ciprés 10, Fracc. La Peñuela, 98068 Zacatecas, Zac. México. * E-mail: [email protected] Resumen Un irradiador de neutrones es un moderador con una fuente isotópica que es usado para enseñanza, entrenamiento y actividades de investigación. Normalmente, el moderador tiene puertos de irradiación radial y/o axial. Con el fin de utilizar el irradiador de neutrones de forma segura y óptima, deben conocerse los niveles de dosis y el espectro de la fluencia de neutrones. En este trabajo se utilizaron métodos Monte Carlo para estimar las fluencias de neutrones en tres rangos de energías: térmicos, epitérmicos y rápidos en siete puertos de un irradiador de neutrones con una fuente 226Ra-Be. El irradiador revestido de plomo contiene parafina wax como medio moderador de neutrones y sus puertos están asignados a diferentes distancias de la fuente de neutrones. El equivalente de dosis ambiental, debido a los neutrones, se estimó a 100 cm lateralmente y a 10 cm por encima del irradiador de neutrones. -
Compliance Investigation Report, Volume 1
70-820 UNC RECOVERY SYSTEMS COMPLIANCE INVESTIGATION REPORT VOLTIJE 1 - REPORT DETAILS Rvec'd wf ltr dtd 8J14/64 _/| 1 THEATTACHED FILES ARE OFFICIAL RECORDS OF THE INFORMATION & REPORTS MANAGEMENT BRANCH. THEY HAVE BEEN CHARGED TO YOU FOR A LIMITED TIME PERIOD AND c MUST BE RETURNED TO THE RE- CORDS & ARCHIVES SERVICES SEC- TION P1-22 WHITE FLINT. PLEASE DO NOT SEND DOCUMENTS CHARGED 5 OUT THROUGH THE MAIL. REMOVAL CD OF ANY PAGE(S) FROM DOCUMENT co FOR REPRODUCTION MUST BE RE- o FERRED TO FILE PERSONNEL. COMPLI.ANCE INVESTIGATION REPORT- o~is~nbf Compliae R~egion I ((3 S.ubject? UNITE-.D NUCLEAR CORPORATION4 Scrp_.eovery Facpi jo~olR ver'Junc pRhode Islaind Licen8e N~o.' SNH-777 Type ""casec CrttqjjcaSy Iictde~t: C5. teSo~IvsLaio tul : 25, .4t Auut7 1964 INN I ws-gt~nTa:WalteR~ ezi Ra04t~on Lot~i~ I p~~t'~'. wzmi 4pop ~~.; * t~41i Iny) goei-qU - I Vlue r RepQ0t Deal 7 - d~gk TABLE OF CONTENTS I Reason for Investigation 3 Criticality Investigation (Browne) ....................Page 1 Criticality Investigation (Crocker) ....................Page 27 1 (with attachments) Evaluation of Health Physics Program (Bresson) ........ Page 36 Decontamination Procedures (Lorenz)... ........ .. ....Page 59 Environmental Surveys (Brandkamp)..................... Page 65 Inquiry on Film Badge Evaluation (Knapp) .............. Page 76 Vehicle Survey (Knapp) ............................... Page 81 I Activities at Rhode Island Hospital (Resner) .......... Page 86 ' Activities in Exposure Evaluations (1kesner) ........... Page 103 I_ I.. l REASON FOR INVESTIGATION Initial telephone notification that there had been a criticality accident at a United Nuclear Corporation plant at about 6 p.m. was reportedly made by Mr. -
Radiation Safety Training
Radiation Safety Training …it concerns your health! 8/30/2006 Charlie Freeman, RSO Slide #1 SUNY Genseseo Atomic Structure Nucleus Orbiting Electrons – Contains Protons and – “Cloud” of orbiting Neutrons electrons surrounds nucleus – Cloud is relatively large – Small Size (~1E-14 m) (~1E-10 m) – Relatively Large Mass – Low mass – Extremely Large Density – Small amount of Stored – Large amount of Stored Energy Energy – Responsible for Chemical Bonds 8/30/2006 Charlie Freeman, RSO Slide #2 SUNY Genseseo Nomenclature • Element Designation A – “X” = Element Symbol X – “Z” = # protons in nucleus Z • “Atomic #” (each element has a unique Z, see periodic For Example table) 16 – “N” = # neutrons 8 O = O-16 = Oxygen 16 – Atomic mass # = “A” 17 • A = Z + N 8 O = O-17 = Oxygen 17 • Isotope: same Z, different N 197 and A 79 Au = Au-197 = Gold 197 8/30/2006 Charlie Freeman, RSO Slide #3 SUNY Genseseo Example: P-32 • 15 protons 32 • 17 neutrons P • A = 32 15 • Z =15 8/30/2006 Charlie Freeman, RSO Slide #4 SUNY Genseseo Ion • In an electrically neutral atom or molecule, the number of electrons equals the number of protons • Any atom or molecule with an imbalance in electrical charge is called an ion • Ions are chemically unstable, and will seek electrical neutrality by reacting with other atoms or molecules. 8/30/2006 Charlie Freeman, RSO Slide #5 SUNY Genseseo Radioactivity • Definition: A collection of unstable atoms that undergo spontaneous transformation that result in new elements. The degree of radioactivity is given by the number of decays that occur per unit time (decays per minute) • Units of measure: – Dpm, dps – Curie (Ci): 1 Ci = 3.7E10 dps – Bequerel (Bq): 1 Bq = 1dps 8/30/2006 Charlie Freeman, RSO Slide #6 SUNY Genseseo Half-Life & Decay Law • The activity of a sample of radioactive 225 200 atoms decreases over 175 150 time 125 100 75 Activity (Curies) • Half-life: how long it 50 25 takes for activity of 0 0 1 2 3 4 5 6 7 sample to decrease by Time (hours) a factor of ½. -
A Study Guide by Cheryl Jakab
© ATOM 2015 A STUDY GUIDE BY CHERYL JAKAB http://www.metromagazine.com.au ISBN: 978-1-74295-598-8 http://www.theeducationshop.com.au Suitability: Highly recommended for science, arts and humanities Integrated study in Year 10 most Uranium has an atomic weight of 238. • We call it Uranium 238 and this U238 is the most commonly found Uranium on Earth. • In the world of atomic physics, these 238 protons and neutrons combine to make a huge nucleus. Running By contrast, the element Carbon usually has 12 time: protons and neutrons. This is why Uranium is often 3 x 51 mins described as a heavy element. approx • It’s this massive size of the nucleus at the centre of the Uranium atom that is the source of the strange energy first noticed by physicists at the turn of the 20th Century. We call it radiation. The great power that is • The central nucleus of the uranium atom struggles to hold itself together. We say it’s unstable. Uranium unleashed in ‘waking the spits out pieces of itself. Actual pieces, clumps of protons and neutrons and electrons and high energy dragon’ also involves great rays. This is radiation. risks. What are the costs and • When Uranium spits out this energy it changes it’s atomic weight. It goes from an atom with 238 the benefits of uranium? protons and neutrons at its centre, to an atom with a different number. » INTRODUCTION CONTENTS HYPERLINKS. CLICK ON ARROWS The year 2015 marks the seventieth anniversary of the most profound change in the history of human enterprise 3 The series at a glance on Earth: the unleashing of the elemental force within ura- nium, the explosion of an atomic bomb, the unleashing of 4 Overview of curriculum and education suitability the dragon. -
Major Radiological Or Nuclear Incidents
Major Radiological or Nuclear Incidents: Potential Health and Medical Implications July 2018 This ASPR TRACIE document provides an overview of the potential health and medical response and recovery needs following a radiological or nuclear incident and outlines available resources for planners. The list of considerations is not exhaustive, but does reflect an environmental scan of publications and resources available on past incident response, numerous exercises, local and regional preparedness planning, and significant research on the subject. Those leading preparedness efforts for, or response and recovery from, a radiological or nuclear incident may use this document as a reference, while focusing on the assessments and issues specific to their communities and unmet needs as they are recognized. It is important to note, however, that entities engaged in planning for or responding to radiological incidents should consult with the radiation protection authorities in their state in addition to federal resources. Most states and local jurisdictions have existing plans for responding to radiological incidents and these plans can provide local information for health and medical providers. The U.S. Department of Health and Human Services (HHS) Radiation Emergency Medical Management (REMM) and the Centers for Disease Control and Prevention (CDC) Radiation Emergencies sites provide guidance for healthcare providers, primarily physicians, about clinical diagnosis and treatment of radiation injury and response issues during radiological and nuclear -
Radiological Information
RADIOLOGICAL INFORMATION Frequently Asked Questions Radiation Information A. Radiation Basics 1. What is radiation? Radiation is a form of energy. It is all around us. It is a type of energy in the form of particles or electromagnetic rays that are given off by atoms. The type of radiation we are concerned with, during radiation incidents, is “ionizing radiation”. Radiation is colorless, odorless, tasteless, and invisible. 2. What is radioactivity? It is the process of emission of radiation from a material. 3. What is ionizing radiation? It is a type of radiation that has enough energy to break chemical bonds (knocking out electrons). 4. What is non-ionizing radiation? Non-ionizing radiation is a type of radiation that has a long wavelength. Long wavelength radiations do not have enough energy to "ionize" materials (knock out electrons). Some types of non-ionizing radiation sources include radio waves, microwaves produced by cellular phones, microwaves from microwave ovens and radiation given off by television sets. 5. What types of ionizing radiation are there? Three different kinds of ionizing radiation are emitted from radioactive materials: alpha (helium nuclei); beta (usually electrons); x-rays; and gamma (high energy, short wave length light). • Alpha particles stop in a few inches of air, or a thin sheet of cloth or even paper. Alpha emitting materials pose serious health dangers primarily if they are inhaled. • Beta particles are easily stopped by aluminum foil or human skin. Unless Beta particles are ingested or inhaled they usually pose little danger to people. • Gamma photons/rays and x-rays are very penetrating. -
Laboratory Training Manual on Radioimmunoassay in Animal Reproduction
TECHNICAL REPORTS SERIES No. 233 Laboratory Training Manual on Radioimmunoassay in Animal Reproduction JOINT FAO/IAEA DIVISION OF ISOTOPE AND RADIATION APPLICATIONS OF ATOMIC ENERGY FOR FOOD AND AGRICULTURAL DEVELOPMENT INTERNATIONAL ATOMIC ENERGY AGENCY, VIENNA, 1984 LABORATORY TRAINING MANUAL ON RADIOIMMUNOASSAY IN ANIMAL REPRODUCTION TECHNICAL REPORTS SERIES No.233 LABORATORY TRAINING MANUAL ON RADIOIMMUNOASSAY IN ANIMAL REPRODUCTION A JOINT UNDERTAKING BY THE FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS AND THE INTERNATIONAL ATOMIC ENERGY AGENCY INTERNATIONAL ATOMIC ENERGY AGENCY VIENNA, 1984 LABORATORY TRAINING MANUAL ON RADIOIMMUNOASSAY IN ANIMAL REPRODUCTION IAEA, VIENNA, 1984 STI/DOC/10/233 ISBN 92-0-115084-9 © IAEA, 1984 Permission to reproduce or translate the information contained in this publication may be obtained by writing to the International Atomic Energy Agency, Wagramerstrasse 5, P.O. Box 100, A-1400 Vienna, Austria. Printed by the IAEA in Austria January 1984 FOREWORD Since the development of the radioligand assay some twenty years ago the whole field of endocrinology in both humans and animals has been revolutionized. The ability to measure the extremely low quantities of hormones that exist in blood and tissues has increased our knowledge of the reproductive function in domestic animals to an enormous extent, and is now coming to be used at the farm level. Reproduction must always be regarded as one of the major limiting factors in animal production and many of the modern methods for improving reproduc- tion rely heavily on the ability to measure hormone levels in blood and milk. This has produced a world-wide demand for laboratory facilities to carry out hormone assays and the need for specialist training to allow these assays to be undertaken. -
DOCUMENT RESUME ED 071 911 SE 015 548 TITLE Project Physics
DOCUMENT RESUME ED 071 911 SE 015 548 TITLE Project Physics Teacher Guide 6, The Nucleus. INSTITUTION Harvard Univ., Cambridge, Mass. Harvard Project Physics. SPONS AGENCY Office of Education (DHEW) Washington, D.C. Bureau of Research. BUREAU NO BR-5-1038 PUB DATE 68 CONTRACT OEC-5-10-058 NOTE 235p.; Authorized Interim Version EDRS PRICE MF-$0.65 HC-S9.87 DESCRIPTORS Instructional Materials; *Multimedia Instruction; *Nuclear Physics; Physics; *Radiation; Science Activities; Secondary Grades; *Secondary School Science; *Teaching Glides; Teaching Procedures IDENTIFIERS Harvard Project Physics ABSTRACT Teaching procedures of Project Physics Unit 6are presented to help teachers make effectiveuse of learning materials. Unit contents are discussed in connection withteaching aid lists, multi-media schedules, schedule blocks, andresource charts. Brief summaries are made for transparencies, 16mm films, and reader articles. Included is information about the backgroundand development of each unit chapter, procedures in demonstrations, apparatus operations, notes on the student handbook, andan explanation of film loops. Additional articlesare concerned with objects dated by radiocarbon, radiation safety, propertiesof radiations, radioactive sources, radioactivity determinationby electroscopes, and radiation detecting devices.Scalers, counters, Geiger tubes, and cadmium selenide photocellsare analyzed; and a bibliography of references is given, Solutionsto the study guide are provided in detail, and answers to test itemsare suggested. The sixth unit of the text, with marginal commentson each section, is also compiled in the manual. The work of Harvard ProjectPhysics has . been financially supported by: the Carnegie Corporation ofNew York, the Ford Foundation, the National Science Foundation,the Alfred P. Sloan Foundation, the United States office of Education,and Harvard University.