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Radiation Protection Office 311 Grand
(319) 353-3458 25 February 1980 . is.7
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L. jm u, / W: A w nd k, m- NIC/,,Au-w y, y [.Y 4 . *J -- '^ Director of Nuclear Material U 9 ' b d Safety and Safeguards '' License Management Branch Division of Fuel Cycle & Material Safety U.S. Nuclear Regulatory Commission Washington, D. C. 20555
Gentlemen: This is in reference to request for renewal of our MRC license number SNM-204. Attached is our application for renewal of the subject license (SNM-204). Seven copies are enclosed as per your i directive.
Since ely yours,
' a. U { ts u . William E, Twaler Director Radiation Protection Office
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Section 70.22(1) A. Licensee: State University of Iowa Iowa City, Iowa 52242 B. State of Incorporation: Iowa C. Principal Office Location: State University of Iowa Jessup Hall Iowa City, Iowa 52442 D. Principal Officers: Name Titl_e Address Citizenship Willard L. Boyd President Jessup Hall US Randall P. Bezanson V.P. for Jessup Hall US Finance & Univ. Serv. D.C. Spriestersbach V.P. for Educa. Gilmore US Develop, and Research E. Control by Alien or Foreign Corporation or Government: To my knowledge there is no control or ownership exercised over licensee by any alien, foreign corporation or foreign government. Section 70.22(2) A. The Activity The special nuclear material in form of a neutron source is used in the education and training of graduate and advanced under- graduate students. Source A Source A is a sealed source used in conjunction with a neutron Howitzer model NR-2. This unit is produced by U.S. Nuclear Corp. , 801 North Lake Street, P.O. Box 208, Burbank, California. Source B Source B is in the form of scaled sources of Pu-Be. Approximate total weight of 80 gms of Pu(239 - 241) . The source was manu- factured by Mcund Laboratory, Monsanto Research Corp., Dayton, Ohio. B. Place of Use Source A Source A is used in the Physics Building on the campus of The University of Iowa, Room 556A - Physics Building.
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B. Place of Use Source B ' Source B is in locked storage in the Chemistry Building on
*he. campus of The University of Iowa.. C. General Place for Carrying Out Activity Source A ' Any one of the following; activities may be conducted with Source A. Activities are conducted in accord with the manufacturer's protocal.
. Production of radioactive isotopes by neutron bombardment
. Determination of beta energy.
. Determination of half life . . Activation analysis - determination of elements present by neutron activation and analysis of resultant radiation
. Mapping of neutron flux
. Segregation of fast and thermal neutrons
. Scattering of fast neutrons
. Quantitative measurement of neutrons
. Capture cross-section determination
. ' Total cross-section for termal neutron determination. Source B Source B was formerly used in conjunction with the natural uranium water subcritical training assembly in the Chemistry Building ,on -the campus of The University of Iowa. It was also used as a point source in neutron albedo studies in the same building. . The source has been in storage for a number of years due to discontinuance of courses. involving its.use. Currently in locked storage in Chemistry Building on the campus of The University of Iowa. Section 70-22(3) The period for which license is requested. The license is ' requested for renewal for a five(5) year period. Section 70-22(4) A. Name amount (chemical & physical form of isotopic content) of SNM. Source A Plutonium - beryllium, 5 curies, encapsulated as one neutron source- according to specifications.of U.S. Nuclear Corporation - Model NR-1. Source B - Plutonium-bgryllium, 5. sealed sources, tota 1> weight 80 grams of'Pu (Pu239 +. Pu 41) . according to specifications of Mound Laboratory, Monsanto Research Corp., Dayton,' Ohio.
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; - Section 70.22 (6') ! A. Technical qualifications, training and experience of individuals , ! : who will be engaged in the proposed activities. ; i B. Source A ! The activities involving' Source A will be: conducted by Edward B. Nelson, Ph.D., Professor & Associate Head of Physics & Astronomy | Department and undergraduate advisor. Dr. Nelson received his Ph.D. in Physics from Columbia University in 1949. A copy of .his credentials is attached. Dr. R.'.T. Carpenter, Associate Pro-
. . fessor, Department of Physics & Astronomy, received his Ph.D. in A copy of his Physics from Northwestern University in 1962. , credentials is attached. [ Source B W. E.'Twaler, Director of University of Iowa's Radiation Pro- | tection Office, is responsible for the source currently in storage. ! Mr. Twaler's credentials are on file with this license; however, a copy cf his credentials is attached. Section 70.22 (7) Description ! Source A is contained in a neutron howitzer Model NR-2. Description is enclosed. The howitzer is used in Room 556A in the Physics Build- ing. | The source is never removed from the howitzer for instruction. ' Source B is contained in its original storage container obtained with the source and is maintained in locked storage. The following radiation detection and survey devices are available | at The University for monitoring activitics with sources: Type of Instruments Number Available Range G-M (Portable) (E-520 's) 3 0 - 2R/hr
. Neutron Survey Meter (Portable) 1- Neutrcn ! Victoreen Model 488 PAC-4G(Portable) 1 Alpha | PAC-3G(Portable) 1 Alpha l Wide Beta II Beckman 1 Alpha Calibration and checks of Radiation Protection instrumentation in | accord with broad license requirements. -Section 70.22(8) A Source A Film badges are currently, routinely' issued to the instructor who | conducts the majority of activities with this source. He is aware H as is the other instructor of the necessity and availability of film
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' cG .Section 70.22(8') Cont'd. badge assignment:for. periods when teaching assistants and tech- nicians will be assisting with instructional activities involv- ~ing'scurce manipulation. ;
- - Fibn badges, . capable of detecting ard measuring beta-gamma and | . neutron ~ activities, . are provided for short periods on a temporary, : on. call basis. The film badge service used is that of.R. S. Landauer;Jr. E. Company. . Badges are routinely exchanged and reports | provided.on a monthly basis. j ; B Source'B 4 ' This source is in. locked storage. Current plans call for it to , remain 'in storage until it is disposed of either by transfer or ! return.to the original vendor. ! ' C Source A f This s'ource is maintained.in padlocked " storage" position in the j .NR-2 neutron' howitzer when not in use. The keys to the howitzer are ; maintained . in a padlocked cabinet inside a locked room. The keys are { available to the. primary handlers. The key cabinet is maintained in j a locked inner room as part of a normally locked _ lab. Condition ; ofclocks are' routinely checked by security personnel during other ! than normal work hours.
. !, . D The manipulation of the sources ,will'be accomplishe' d by Drs. .t E. Nelson.and/or R. T. Carpenter; and Radiation Protection Office I personnel. Due to design of the howitzer, leak testing of the : source can be accomplished either by removal or through an access ! port. . If and when the source is removed; for leaki testing it will ' be handled with' at least a two~ . foot -longchandlingi tool which is available. ~ O E EThe howitzer' proper. The ' inner room'in which~it is stored is' ! appropriately posted with Radioactive Material signs and general radiation protection operational procedures. . Radiation emergency .[ guidelines and specific ~'information on:thejlaboratoryt-e.g., names { and. phone numbers of cognizant-individuals are'available. The j{ room - containing the neutron howitzer will be placed on a routine j survey. list. , F LF 'The neutron source will' be leak tested quarterly. The test- !- being a swipe test of the surface of the sealed source or surfaces ; ; of~the device in which the sealed. source"is mounted or stored on ! , which one could4 expect contamination to accumulate. The swipes : f will be counted in the Beckman Wide Beta'II counter in the alphaL i j detection mode which is capable of detecting the presence'cif- . t ! 0.005-microcurie of-the. activity on the wipe sample.. , -! ! | Records'of: leak-tests'results are maintained:-in units of micro-- ; . curies'for inspection by the NRC.- The NRC willube notified in J E.- event-the 0.005 microcurie. level of contamination is! exceeded on ; | the sealed source.- i . . . a
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All radioactive material, whether naturally occurring, by-product
or SNM,.comes under the. purview of The University of Iowa's , Radiation Protection Committee. Attached is a copy of the current ' committee organization and names of current members.
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p ,3 . - Y , Omce of the I%ident . Wiperd L Boyd
I Educational Devclopnient & Research . Dumme C. Sprientersbach Mce Freendest
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Univeresty Radiation Protecuon Executive Comrnittee
Duane Spriestenbach, Oairman Educ. Dev. Res. 20lG Gil Hall - CarolNewlon Zoology,323C CB '80 Robt. Dryer, Biochem.,4-532 BSB '80 1enis Stegink, Pediatrics, IIS i '80 Robert Hardin, Int. Medacme, E331 Cli William Tresse, Educ. Dev. Res., JII E.wlent Repsesentative to be elected W. J. Farrell, Gerald T. losersan, and W. E. Twaler, ex ofreio
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Basic Scasace Modecal Beo Scarnce Hunnan Use Sub-Comunittee Protection Omce 9stemndstee Se6Gonnemittee (RPCs) Carol Newton, Zoology, Robt. D yer, Chairman '80 Jewis Stegink, Peds,11S, Chrm. Chairperson **O Biochemistry,4-532 BSB ~80 Raymond Sheets,laternal Whm E. Twake Barbara stay, Zoology, ZB '82 T. Shires, Pharmacology, Medicine, Gil '81 Arthur Vetter, Materials 1250 BSB '81 Richard Peterson, Nuclear Engmeering, I135 Engr. Blds. '82 D. Reynolds, Surgery, 312 ML '82 Medacme, VA '82 Richard Carlson, Physics,312 PB '81 Wm. Johnson, Microbiology, BSB .82 lawrence Fischer, Donald Burton, Chemistry,173 CB '80 Jack Kaplan, Physiology, BSB '82 * Barry Gin Lerg. Internal Studcat Representat% to be elected Student Representative to be elected Medicine, VA Gerald T. Lonergan, ex officio RPO Gerald T. Lonergan, ex omeio RPO '81 W. E. Twater, ex omcio RPO W.E. Twater, eit ofGelo RPO James Ehrhardt, Radiology, '80 337 ML Cha les llantrey, Urtdogy, Gil '80 al.K. Younosrai, Pediatria Gli '80 Student Representatrve to be elected 5 W. Trease. Gerald T. Lonergan, and W. E. Twater, S ex omcio g
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, Born Jt0'y 26,1916, in Mehenry, Kuitt.dy. ,
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B.S. watern Kentucky State College, lwitng Greeni,193J-3y }} . | H.S. 'rea.JerL11t University, Nictivine, 'Ibancuaco, 19f/-17.sd .
Ib.u. calue.tsin'imiversity, Nov York, 1930-1% 1, 1% (,-18 9 . ,- . , .' Graduate Ausisbt: Coltr.sbia University, 1930-1%1.
Iseturer Au ltyoics: Coltaabia University,1).1-1%3 _ . / , " Western Kentucky Stain Colle47, ,', Assictant 1Tofessor: ' | 1%3-1%I.4 lbstreh IQut'ciut: G. A. M'.' Issberstories (HiMwtte Trn.;ud. June 19%-rebrmry 1%(.. . 7 ' Coltsubia University, Febrtusty 1%6 . b:ettai.r ja ,r:ys.ics : --June 1917 ;
- Austructor in Ihysica: Cotunbits Univet uity, Juu.: 19*. 7--?.it y l',6 '/ .
.. ' , Assistant ITofascor Ctate, Uttiverstity of Iowa,1%95,i95.5.' of Itysico: ' .-
' f , Senior Fost4a:toral . . . ' Onmbridge, neland, 195G1937, e - . - Fs110w: ' . . :t
~ Associate Professor . State University of Iowns,195G1963. - - a . - of Ptynics)r , ... .. , ; > ._ . . ' . m: - ,p 3 * . . '. .i i - ! ' .#- ;f. Visiting Iacturer '' ' t$1veEdit'f6dsetdefExeter) England.b)i'I in Physicai * '' ' * , , 19 % 1960. , ( , . ' *'! Profesacr cad Associate : thiversity of Iowa,1963--present. . . Ilcad of lb/artment: . ; < . a-
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' i !I ' ' Academic li ors: .. , , - University Schalar: ' vanderbilt ,thiversity,; 1937-1$38. . ' ,. " , i coluatic. thive.rsity, 1936-1 % 1. ', Asslstant in Physics: ' i - thiversity Fellow: Columbiu thiversity, lhl-1%2. ~ , \ - I . , . | !'
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;' ' , Mu14c6 t,1c:_n,: 1. Opticalf Activity of Cryntal.lirm Nickel Gut ate - cr-&.rahydrate -e. craarvood, sleck, and malam /' Ihys. 2*v. 2 , 355 (1938) I ! 1 2. The !!ypertine 8tructure of Atonic Eytrem el Deut.arfis,
& nnte, Na1eca, aat kbt
- g, ylhys., Ier. 3, 914' L (1947) , n t .. ) .x - - . q7,u,y1p[ g;.. ...|. -| '' - 3 'Ame Hyparfine Structuse of Rydr< gen arn! Nmterium f '- ~ hfe and Msm Itys. Rev. 3,718(1948) / , 4. '!be Ityperfine Structure of Tritius Nelson amt hfe ! Itys. Rev. g , 1194(1949) ' | 5 A Comparism of W g-W1ue of the Electroa in Hydrogen with that in Deuterim & lsen 'aat R fe Ihys.Bev.]j, 1858(1949) , 1 6. Angular' Carrelation in the Beactim B (p, 77) C ' Ifubbard, Emison, and Jacobs *
, Thys. Rev. g, 376 L (1952) ' . . ' q' 7 'Iho Angular Cg'g)ption of the Caecede rh. .smys % |' the Decay at Au f' n Schrader, Balson, acd Jacobs
, Itys. Rey, g,159 L (1953)
- 8. Sciatillation Counter Stu!y of Osamma Rays fra Proten ' Capture in Soditas i - Omrlson, Geer, ant Nelsen ^r' , Phys. Der.g, 3311 (19 % )
., h h ys fra Proton Capture in Lt 9 I sat [9 ' . Emison, Iswrence, amt Carisco .. ' Phys. Rev. g, 825 A (19%) 10. Omana hys trtas the Ient-hergy Proton Babar*=4 of 7 | - . Beryllim # Omrlem and Emisca d' Phys. Ber. g , 1310(1955) | | ,,
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al. sw autive capt.ure et trol.us 1,y N Inshkin, Cariocu, ani Nelcon Phys. Rev. 3 , 107 (1958)
g u, 0) Ec 12 . .. Allt a-Alpixa Angular Corrointions in [ (p Oeer, Nelson, and Wolicki Itya. Bev. 100, 215 (195') )
13. . Itoton Be=heuncuat et Daryittun at 2 56 twi
f.7'_ 3toltr.rus, Fr!!chtentcht, swl Nei non i ' Bull. Am. Phys. Soc .1, No. 7, 329 (19%)
14 Physics Iaborutory Manual Divani B. Nelson Printers: un . C . Brown Co. , Inc . , Lubuque, Iwn 120 pp. (1961) (2ni Edition: 1964) p' - 15 Angular Correlation Stw11co of the 326, 405, and 630 kcV A172 (p, 7) Fesences Valerio aryl Neloon trac 1. Itye. 2_9, 70 (19Ci>) 32 3,,c ggg, ,g 355 g,y ,,,, :,,,n 3,y pyo, , 16. 'Ihc h (p, y ) S Energy Nelecr., Carlson, and Schlenker Nucl. Itys'. jl, 65 (19G2) (p,y)Ne (p,p'y),and 17 7-Radiatice frcn Ne Ne (p, y) at E p13-19 MeV ( Abstract) K. L. Coop, M. W. Greene, and E. B. Nelsen ' rull. A:n. Itys. sec. ser. n,10, No.1, p. 37 (1965)
18. A Simple Experiment in Ro'taticoni pymr.ics - Livard B. Nelsca . ' (Inpress,1965) i
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Raymon T. Carpenter
. Social Security No. 512 20-7806
Born: 14 January 1929 ; Topeka, Kansas |
Education: B.S. (EngineeringPhysics) Univ. of Kansas 1954 M.S. (Physics) Univ. of Kansas 1956 Ph.D.(Physics) Northwestern Univ. 1962 Professional Experience: 1/57-8/62 Argonne National Laboratory Assistant Physicist 9/62. - 8/65 The University of Iowa Assistant Professor - Nuclear Physics 9/62 - 9/71 Argonne National.Imboratory Physicist, Consultant 9/65 - The University of Iowa Present Associate Professor - Nuclear Physics 1/71 - 1/72 Universitat Heidelberg, Heidelberg, Germany Guest Professor
Summier 1976 NSF Research Participant at MacDonnell- Douglas Research Laboratory, St. Louis, Missouri Honors:
' Senior Honors - University of Kansas (1/51 - 8/5 4)1
~ Susumerfield Scholar - University of Kansas Faculty Honors in Physics - Uhiversity of Kanssa Honor Societies: Honorary Engineering ' Tau Beta Pi Sigma Tau Honorary Physics Sigma Pi Sigma Honorary Scientific Sigma Xi - Professional Societies: * American Physical Society .
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- ! s Publications of RAYMON T. CARPDTIER - : | 6
1. Gassna-Ray Spectra frun Neutron Capture in W [~ T. J. KENNETT, L. M. BOLLT.NGER, and R. T. CARPENTER L Conference on the Canadian Association of Physics,
, . . Hamilton, Oritario, 1958 ANL- 'N Phys. Rev. Letters, 1, 76-77, 1958 ' )- ' 2. Gamsa-Ray Spectra from Neutron Capture in Resonances of k , [ Hg , and Ng [ Abstract)
T. J. KENNETT, L. M. BOLLINGER, and R. T. CARPENIT.R , . Bull. Am. Phys. Soc. , h 177, 1958 7 m 3 She Response of a NaI (Tl) Crystal to Manoergic Neutrons S. M. SHAFRODI, E. N. STRAIT, and R. T. CARPENTER Nucl. Instr.,-3 298-305, 1958 _ 4. Slow Neutron Cross Sections of Mercury Isotopes [ Abstract) R. T. CARPENTER and L. M. BOLLINGER Bull.Am. Phys. Soc.,b 271, 1959 -
5 * Fluctuations in the Total Radiation Widths of Hg [ Abstract) R. T. CARPENTER and L. M. DOLLINGER ' Bull.Am. Phys. Soc.,b 473, 1959 i 6. Parameters and Gamma-Ray Spectra of Neutron Resonances in _i the Isotopes of Mercury R. T. CARPENTER and L. M. BOLLINGER Nucl. Phys., 12 66-98, 1960
- 7 A Gamma-Ray Spectrometer for Studies of Resonant-Capture
Osama-Ray Spectra . ,, - | ' L. M. BOLLINGER, R. T. CARENTER, R. E. COTE, and H. E. JACKSON > Proceedings of the Symposium on Neutron Time-of-Flight Methods, Saclay, France, July 1961 [ Brussels: Euratas, 1961), 431-438 i ; ~ 8. Analysis of Resonance-Capture Gamma-Ray Spectra R. T CARPENTER, J. P. MARION, and L. M. BOLLINGER j Proceedings of the Sympositan on Neutron Time-of-Flight Methods, Saclay, France, July 1961 [ Brussels: Euratcm, 1961;, 563-564; -
Bull. Am. Phys. Soc., 6, 418, 1961 , t !
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Publications of RAYMON T. CARPENTER Page two
i 9 Resonance Average Values of Partial Esdiation Widths R. T. CARP 1MIER and L. M. DOLLINGER Proceedings of the Topical Conference on Electromagnetic Lifetimes and Properties of Nuclear States, Gatlinburg,
Tennessee, Nuc. Sci. Ser. Rep. No. 37, October 1961 .
, 10. El Gamma-Ray Strength Function for 144 5 A s 202 [ Abstract] R. T. CARPENTER and L. M. BOLLINGER Bull. Am. Phys.. Soc., ], 10, 1962 11. Low '4ying Levels in Hg [ Abstract] | R. T. CARPENTER, R. K. INITHER, and R. E. SEGEL _ Bull. Am. Phys. Soc., 2,11,1962 12. The Electric-Dipole Garea-Ray Strength Punction for Heavy Even-Even Nuclei R. T. CARPENTER ArGonne Nat. Lab. Report Number ANL-6589, 1962 13. Partial Widths for El Gassna Rays frcan Neutron Resonances and Their Relation to the Giant Resonance R. T. CARPENTER i Proceedingc of International Conference on Nuclear Miysics with Reactor Neutrons, Argonne, Ill., 1963
, ANL-6797, pp. 211-219
14. Distribution of Partial Radiation Widths -| L. M. BOLLINGER, R. E. COTE, R. T. CARPENTER, and J. P. MARION i Proceedings of International Conference on Nuclear Raysics with Reactor Neutrons, Argonne, Ill., 1963 ANL-6797,Phys. Rev., 132, pp. 1640-1322-323; 662,1963
Slow Neutron Capture Gasuna Rays in Hg
15.-' - R. E. SEGAL, R. K. ' SMITHER, and R. T. CARIENTER Phys. Rev., 133,.B583-B590, 1964 6 16. Four Parameter Analysis of Li ,gg6- * b and Li' + LiI+b+n ; [ Abstract] E. H.' BERK 0 wit'l., R. R. CARISON - and R. T. CARIENTER Bull. Am. Phys. Soc., p , 694,,1965
17 Angular Distribution of Alpha Particles from the B (He ,a)B9 Reaction'[ Abstract) H. R. IIIDDLESTON and R. T. CARPENTER Bull. Am. Phys. Soc., p , 1125, 1965
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Publications of RAYMON T. CARPENTER Page three -} .
. 0 18. Angular Distribution of Alpha Particles from the 103 [3He,0)9B Reaction r R. T. CARPENTER and H. R. HIDDLESTON Physics Letters, 20, 286-287, 1966 ~ 21 19 Lifetimes of the 1st and 2nd Excited States of 7 || R. A. MENDEIRON, JR. , and R. T. CARPENIER d
Phys. Rev., 152, 1002-1005, 1966 ,
20. Angular Distributions from the Li (Li sn )b Reaction [ Abstract) R. M. BAHNSEN, R. T. CARPE!rIER, and R. A. MENDELSON, JR. Ball. Am. Phys. Soc., 11, 301, 1966
21. ' A Fast n-y Time-of-Flight System [ Abstract) R. M. BAHNSEN, R. T. CARPENTER, and R. A. MENDELSON, JR. Bull. Am. Phys. Soc., 11, 392, 1966 - 22. Angular Distribution of Neutrons from the Li (Li ,n)b Reaction at 4.10 MeV 4 R. M. BAHNSEN and R. T. CARPENTER - Phys. Rev., 164, 1235-1240, 1967
23 Lifetimes of the 1st and 2nd Excited States of F [ Abstract] R. T. CARPENIER cnd R. A. MENDEISON, JR. Bull. Am. Phys. Soc., M , 71, 1967 s
- | 24. BranchingRationofSiatesinMg [ Abstract) | R. T. CARPENTER and D. E. BLATCHLEY | Bull. Am. Phys. Soc., E , 73, 1967 | 25 Lifetime of the First Excited State of 7 [ Abstract] R. A. MENDELSON, JR. , and R. T. CARlWER | | | Bu'1. Am. Phys. Soc. , y, 111, 1967 g 26. A Vibrational Model Calculation for States in Mg26 [ Abstract) W. D. TEETERS and R. T. CARPENTER I Bull. Am. Phys. Soc., y , 610, 1968 -
27 Lifeti2ne of the First Excited State in 19F [ Abstract) ! R. A. MENDEIEON, JR. , and R. T. CARPENTE.i .J Bull. Am. Phys. Soc., y , 651, 1968
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Publications of RAYMON T. CARPENTER Page four
^ 28. Angular Distr 1bution of Neutrons from the Li (Li ,n)C Reaction at 4.10 MeV R. M. BA!!NSEN and R. T. CARPENTER Phys. Rev., 164, 1235-1240, 1967
5 : 29 Lifetime of the First Excited State of P ! R. A. MENDELSON, JR. , and R. T. CARPENTER Phys. Rev., 165, 1214-1217, 1 % 8
E 30. Lifetime of the First Excited State of C R. A. MENDELSON, JR. , and R. T. CARPENTER Phys. Rev., 166, 988-991, 1968 lN 31. Bombardment of N by Li ions L. R. RICE and R. T. CARPENTER Nucl. Phys., Al20, 220-224, 1968
32. Lifetime of the 3.19 MeV (6*) State in Ca-- R. A. MENDELSON, JR., and R. T. CARPENTER Phys. Rev., 181, 1552-1555, 1969 9 33. Lifetime of the First Excited State in F R. A. MENDELSON, JR., and R. T. CARPENTER Phys. Rev., 183, 924-926, 1969
34. Electromagnetic Transitions in Mg | R. T. CARPENTER and D. E. BIA'ICHLEY | Proceedings of the Conference en Slow Neutron-Capture Gasuna-Ray Spectroscopy, ANL-7282,1969 2 35 Opins of K States by Gamma-Gsama Correlations i D. J. SPYR and R. T. CARPENTER | Phys. Rev. C, L 1576-1581, 1972 36. Messung der Spins ungebunder Zustilnde Im 0 und 20 ,, J. C. VAN STADEN, R. T. CARPENTER, und K. BETICE Fruhgahrstagung der Fachausschusses Kemphysic, Berlin,' !Grs, 1972
37 Triple Correlation Measurement of some Spins in "Ne (Abstract) ' R. T. CARPENTER and J. C. VAN STADER _ Bull. Am. Phys. Soc., ll, 533, 1972
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: William E. Twaler
Born: June-14, 1934 '
~ 'B.S. ' DePaul University,-Chicago, Illinois 1957 , .} Major in mathematics, minor in physics . Additional courses in Radiation Biology at ' University of Iowa 1963 - 1964 '
^ . . Training in radiation safety,.. nuclear physics, s; tradiochemistry;ccriticairoutside reactors, ' - |; - ' iinternal dose measurements - at tne Inter- ' ' ' ' national Institute at'Argonne' National ' Laboratory, Argonne, Illinois - : 1961 . . Military 'experi.ence|in radiation safety
' related~ work - 2 years as an officer assigned to the U.S. Army's First. Radiological Safety i Support 1 Unit where he was responsible for i training and supervision of radiation monitoring decontamination operations, . instrument , calibration, dosimetry,, leak testing and f waste disposal operations. Participated 4 with 1st RSSU in Operation Hardtack on , Eniwetok Atoll in 1958.
| .- Civilian work experience. ' ' ; Radiation. specialist.with USAEC - , compliance Division - Region III- 1960 - 1963
Director' of Radiation Protection Office g University of Iowa 1963 to present
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.. - + - , py, p . , ^Q - .; - . , Individuals' Currently Assigned to Conducting of Routine Sealed Source Checks.
J. Michuta B.S. Wisconsin _ State University ~ Lacrosse, Wisconsin 1965 Graduate School - University of Iowa Major - Chemistry 1965 - 1971
Radiation Protection Office University of: Iowa 1972 - present Lead Technician in all phases of radiation protection daily operations Radiation Emergency Response Training 1979 On the job training at Argonne' in 1975 bioassay techniques and dosimetry
A. Lohrenz
B.S.- Iowa State University Ames, Iowa 1976 Major - Biology Research Assistant, Physiology Department University of Iowa 1978 - 1979 Health Physics Technician II Radiation Protection Office University of Iowa 1979 - present W. Schutz
B.S. University of Iowa Iowa City, Iowa 1976 Major - General Scienca Research Assistant - Radiology Department University of Iowa 1977 1978 Health Physics Technician II Radiation Protection Office University of Iowa . 1978 - present Radiation Protection Training Short cource
, Harvard University 1979
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. : . .. .' . ' {'& ~. . t i OUTLINE OF SOME h . $ NEUTRON EXPERIMENTS |
. FOR
P NR1 AND NR2 :- O*' ; ..
A.1. Production es tudiot.ctive luotopes by neutron bombarde ent: BackgrounJ for beta counung systsm is determined using 6n the sample location a ' foil not previous- ly esposed to noutrons. The soinc foil is then esposed to thermol neutron flux in the Howitzer and ognin courted un ler identical condificr s. 2. Determination of Beto Energy: A foilis activoted and counted as in A.I. Successively thicker o!cminum obsorbers are then placed i between the activated foil and the detector. By ploiting counting rote vs absorber thickness offer ; subtraction of background the maximum beto onge is deterni,ed; and by comparison with a beto range energy chart the energy of the he'o es dMerdned. The Feather technique is then utilized to dem ,nstrate its a; plicability.
; 3. Determinesion of Half life: * The counting rate of the activ2eed sar ple .te.t in A.i anf A.2 is meosared at several time inter- l q vols and l'ie results r cited to determine i.olf lifa. Tw o short.h.H nuclides are then produced in ' the some snmple and counted several tirres o' irce voi s cr.d clotted to determine the ratio of the i two nuclids s by entrapolotien to zero 'irte. 'hu s illustro'ing t' ne method for sep4'Jfing mixtures I gro;Aicolly uti.iting half li.es of nuclides. 4. Activotion onclysis determination of eler9e.its g rese1t ley no.itron activation and onelysis of resultant rodlotlon: A measured or:.eunt of octivste. hie impw 1 is added to o son ple .r. ate es. and the aggregate acti. voted and counted. An adr.itier.ol sompl* with a largar measured cmount o8 the impurity is then j identicallt treated and voristice of coonting rote os a function of quantity cI impurity determined. Holf. life and obsorption thorocteristics of the resultent be.to radiat ion are then measured and used to determine the nat6te of the irqurity. A snn.ple with unknown qucntity of impurity is then acti. voted and the impurity determined. B.1. M, ping of neutren flun: , Foils are inserted at several lecations in the Hewitrer oceess tubes in a manner which prevents i perturba tion of the neutron flux. Reintive counting retes of the fails are then deter - ed in o I stondord beto counting setup, o,d plotted. The some results are then pursued by mean. of a new- tron scintillatorinsartad at various locations in the cecess tubes and read out on a standard scaler. 2. Segregation of fast and therrnal neutrons: Foils are 4endwiched in cad,nium er boron to remove oli thermal neutrons and exposed ot'vorious | locations to determine fast neutron octivations of these locotions. Similar fails are then esposed without cadmium or boron sandwich. The considerable variations in fast and therrnal neutron flumes are then plotted as o functivo cf location. The enperiment is repeated using a neutron scintillotoe with and without a codmium filter of the several locatiens. : U. S. NUCLE Aft couronxrm.s 80l NCR TP L ar.[ tt S EE T P.O. DO A Es * C US P ANr. CAllf or r
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. , .: .v1 _ - - o c3 . o . .. ov , U j * 3. Scottering of fest r$trons: j The neutron | source is oligned with a cadralem lined herimental bean port and the burn defir.ed by ' the foil technique ar.d by a fast neutron scintillater. Thin 'oyers of varion eviterials are p| aced in the emergent beam and the beam redefined by the some techniques. A plot is rrode first of the flun ~3) vs location before insertion of the scattering rnoterial, nut ci the flux vs lootion subsequent to > its Insertion, and, finally of d flut vs lccation to illt. strate the nel scottering effects. ' 4. Quentitative meesurear.ent of neutronst "
A feil exposed to o neutron flux is beto counted. Cerrections for self absorptien, bechentrer, air . ond window obsception and geometry are then applied to give the true beto output. The half life is determined by taking 3 counts at intervnis and plotting. The total nu nber at activated atoms cre then computed. Then, by considerinD the SciS ht of the feil "nd II'e crow.se.fian of t4e meterial, the neutron flux is ccm,suted. 5. Cep'ure cross section determination: Utilising the figure fer thermal neutron flum as eniwicted in D.4., o foil I diffe,ent msterist is oc. tivated and with suiteble allowcnces os en B.4., Its total bets output, tit 11 nuerber of the activated atoms cnd finally theranol neutron capture cross section is calculated.
6. Total crossisectlen let thermol neutron detenninotion: - ' A foil, sensillie only to thermal neutrons, is activoted at o given location in the Huritrer. Subse. quently en identical foil is sandwiched between two other foils the cross section of which is cf interest. The total obscrptien cross-section of the sandwichinD fails is then calculoted by measub ing the difference In'octivotiers of the " meal" of the sandwich before and offer it has been sur. rcurvjed by the obsorber. C.1. Ifot atom chemistry preduction of corsier free bromine: The Sailord-Cholmers recoil technique for seporating e ssentiol!y corrier free roJioectivations la utilized by dissolvieg ethyl tremide nod a bromine acceptor in n neutral solvent and exposing to neutrons in the Hewitrer. After expesure the neutroq cccepice is reproted by *o! vent entr1ctien and ccunted to determino the active been,ine centent. A pesilon of the original ethyl brocnide i- alsc ccunted and separation efficiency colt.u|oted by comparing count tot:,s. 2. Fissionproduct chemistry iedine pree'uced in fission - use of carriers: -* ** ** * t M i.f , T ' .*.*.T . ***'s. Normal wronium oxide is esposed te th-r.nsi . .;:. ~. . .. neutrons in the Howitzer. Th uraniu .i ux. Ide is subsequently dissolved in :*i tric V '' ' ocid, corrier iodine odded as icoide4hich .. is subsequently oxidited to sweep the ' " ' * ' * * * * "** ' volence states, then reduced again to [. . iodide, separated by precipitation by silver . \. " . . - '' . *
iodide, the precipitote dried, weighed, .. . n. . , , , , , , , , , , mounted and counted then re dissolved, s *"*-* i.j A'%-. - *]. * * ' oxidized to free iodine and entracted into d on orgonic solvent, re-extracted frem the 3 , '' .\ g q .b".., " ' s olvent into water and reprecipitet?d as / Aj. ' silver iodide. The sompt is es,nin dried, '%j ' ' . @I weighed, meunted and counted, it is then u '.. . . ; "* L'O .~O*M" counted again of intervols to de:errnine
half life and obsorption curves taken to ..-~.==*.'.-**oe i determine variation in bets energy as func. k p /*'. ~ . " ** * 7 *-*I I* tion of hcif life. The half lives end obserp- t- - . tion curves are used to deterrnine the ratio - @' ' " * * * * ~ , ,| } ' ['** of the iodine isotopes fott ed. . +*''~~"a , . ', ; , -"*t-" , . .. i ' , i |{.'/,,7 *g ' * .'..* *. 3. Fission product chemistry separotten and ! e r ' - m.u ;r r;.. , ,;-- < - l' / determination of molybdenum produced in ) u e * * . *_- - '- - ~~ fis sion: , ( ! $. ' Techniques sitnilor to those used in C.2. f T h' b '~1''T-N, but applicable to molybdenum chemistry are e "% opplied to isolate molybdenum os phosphe. 'i '. 'y ...... , , . molybdote. Half life and o'usorption rneos. ! I g i ___ , , , , , vrernen ts are utilized to def errnine the i 7~.3 --- omount of the active molybdenum isotope '.P ' . - QM;,'',' ) ,, L -Q - - h|) ' formed in fission. :- *i i " '7 "I I '' . . . . .
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- - 3 133 3 . hTtftRNI WNJT/J.RS AC M'Cy{g(, , , 4 , O O * 4 U.S. Nuclesr's Hodal NR-1 and hR-2 neutran haitters ans !Me and reliable devices desirned for etntent and intuntrial m. perimentation in the proporties and effect s of scut.res. The unit has been desicr.ed to safely contain largi n.esits of radioactivity (i.e., more than 10 e l'u-De). Adnien steel ports are used thmuchout for contain:ent of tource et parsitin in case of fire. The all steal mnetructien aret all wclaied sosuns were designe.d te meet Pureau of Exploatm 19- . ' * .6'- 4tdrersents and fire hasards. Dieuch parsffin has haen uso.1 to , . i' that surface 3evuls read less than 2 cres/fu ekn a 5 curie ' . Fu.-Be source is stored in the howittor. Tas ta,it Ms throe tawy ' ''' ' ' duty casters for case of rovaxnt end cu tw uend for experirrents, <'d - storage and as a chippirt ccntair.er. The ha-2 r.,: del ec .ec coc- _ 1 plete with accessories as cutlined telaw. Toil holders and spacers are incluied in the NR-2 nidel for pheecmnt of follo llR-2 TCP PORT AccP' wales at almost any distance fim the riource. An experianJutal PAnusi is includsd with both todels and contains craded experi:.cnts. The neutrcr. hatritter is prirearily used for radioisotopa pmduction and activation analysis c.:.d a bich celting point paraffin is used as a moderator. The car. tar top port or storago port ecntains the sourcs in a cup (1-5/8" 1.d. x 4" desp) fasterted to the tetto.s of a tv.thacryhte br. *t-s u;nter storsea Mrt can te adjusted to | center a ene to 10 curie enarco directly oppocite tiu etds parts for mdet9 intensity of fast , i. ; q 7
neutron beam. If more thsn three nourcer, are decited, apectal cups can be nade on request.' + When A* tin sourcs port is in the closov t,r Aocke,t puitten LSe ;.eurce is bsln t% side port.o. y;
Srecifiestirmes .
I Construction: 01 stesl, all w?l!cd ' Shielding l'." in cach direction h ,,, s l'a raf fin , }bderator: 's - Pernit Cun ew of E* plosives 920 , >, Dolly: 3 heter / duty cattere %%o . Shipping: Also a shiprtr.c sMcAd Scurce Containment: 10 c Pu-h cr 1.2) x ink 'n | Incks: All pr-*s m<1 aau co p;rt. c r. to loned te. phco 3 ot. 1-1/L" c. r:h.inir s ete s) 1tred pns | Top Ports: Side Fcrts: 3 ra. 2-1/6" ; .v. etsi .S a ei'.cci cie
. 20 crinium covers (7/8") 10 berts 1resded plastic discs (7/3"), & 10 ea. indlun, silver & uranitsa foils (3/4") Asserted wnming elgns Instruction and erreriment manual Price: C110J
3LdTf:'"! A$n 0PJT.5" NR-2CO lbliow Altnimn 7" cylinders with upcers $59 es. hn-201 Set of 3 Na-?OO for side ports 160 set NS-300 2" cadmiu:2 lis.e1 cnin fer with nolder and intertion rod I?2 on. UR-4CO Ilo11ow methacrylate tute with sp4ers 75 ca. NR-401 Set of three Ni-LCO for top ports 65 eet ' ' hR-500 leak test kit 15 es. . 1 i Educationni Poll Kits,*e , Fit No. Items Ir?)w'el es .. H.4-600 EF-101, LP-lll, r/-121, Er'-ljl, LF-ILO, EF-1$1, t?-160 F3Fr(i' EF-100,FF-110, EF-1:0, LF-lW, ET-lLO , FF-l'A. IT-19) 195 HR-700 T;0 f.R-80C Continto Pl..f:X' a-d I.d '/00 75 f:R-M 4 Iri, %. I. !. ; l. U . Il 01 ( l 'h" I.4 't 'P) -. . ^ ? A- }
. . ^ r u ' ,m > ; - Ce m in n i Fat- - n u > o - + - - - <(>> .< at:y ter m..- - ro w t;'. Foil q.. .. i t .y it..c...- V Irisefi ' , J15 17 -i.0 - Ca d ir. Cover N U.G " x 877 ' 0.02' x j.2) 20 - Cacrium Cover m 17 -101 r, EF-110 Indium- 10 U .C ) " x .'.' 5 " 10 0.0i" x la 40 hF-131 Indiun1 ' | EF-120' SilverlL 10 0.W $" x .75" 7.s0 EF-121 10 0.00$" x 1" 30 Silver,; (; h ,, ) 10 0.0 0" x .'/5" $0 EF-130 Uraniurn- natural . 10 0.00y' x 1" 75 EF-131 L'ranium (natural) i;ji3 EF-140 BomntPlastic. 10 0.125" x .875" 25 40 . , EF-150 Gold 1 10 0.002* x .75" $$ EF-151 OcidL., .. 10 0.CO/* x la EF-160 Antimon 10 0.12$" x .81$" 25 Research Foils 1,;;y- Plastic
' RF-180 Indium: O.01" 33 RF-181 Uranium'(natural) 0.00J" $C Altninta - 0.03 25 ltF-182 " RF-ld) Silver < U.005" 27 50 0.005" 37.50 RF-184 a Copie r , ', > ' . $3 O.005" Ag" RF-185 * ' Nickel )$ , ''j |[3,pji :tF-186 Iron 0.005" + * C.re:/ ' 4.0 q' - . RF-187 Gold , RF-108 Cainiura Cover 0.0r x .87$" 15 Itf-189 Tin 0.015" :'$ " ' 1. All meearch packages contain 10 foils except the cacir'iurn covers (20), 10% discount on $ packaces or more .131 iiiscotr.t on 10 or rore pic
g Curies of Fu Di.n ter Lengt b Price * A 1 1.(2u" 1.i.45" f.nou L 2 1.020" 2.190* 775 ' ' 2 1.31'" 1.*10" n$ c ' - D 3 1.310" 1.91$" c$C E 3 1.$$c" 1. $C $ F50 Y. 3 1.C20" 2.935" t$0 925 N$0 a.aditio .al ta ning F 4 1.310" 2.3?O" !; 4 1.C:0" 3.68C" 925 cr.arge for w!;.e testine & snipping '' G 4 1. $ $l." 1.775" 925 '' 1CCC esen order. 11 5 1.310" 2.7:c" ' 1 $ 1.550" 2.04'" 10C0 P $ 1.r:0" 4.4?$" 1CTO J 7 1.550" 2.58$" 1150 F. 10 1.$$0" 3.390" 1375
"%f rerm! for all standard neutrun howitzers, sub-critical assemblies - and lod level pulsed neutmn devices,
17. S. N t?CIE Alt (oimmsttox g' . eos.+ outs Last SYettf , , {G . s it'r ti P.o. n n it,4 e aum e A:n. c au e o a nia /.? 213 Victoria 961*/6 _ . _