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This report presents data on calculated gamma radiation exposure rates and ground deposition of related radionuclides resulting from events that deposited detectable radioactivity outside the nevada test site c omplex.
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Machine-read from the scan, so expect some errors. Lines that couldn’t be read are left out.
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TO: Recipients of UCRL-53152, Parts 1-8, and UCRL-53505 ‘03Pb data, page 8 of each appendix citing 203Pb The zero time value was omitted but appears correctly on page 3 of these appendices. The 203Pb values pertain to the decay time of the column immediately to the right; thus, the “zero time” value is the value after 1.00 day’s decay. II relW data on page 12 of each appendix citing rslW . The value for a decay time of 3.50 years is a factor of 10 too high. An Equal Opportunity Employer 9 Universityof Cafifomia l PO. Box808 Livermore. California 94550 l Telephone (415) 422-1100 l Twx910-386-8339 UCLLL LVMR
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TO: All holders of UCRL-53152, "Results of Calculations of External Gamma Radiation Exposure Rates from Fallout and FROM: Technical Information Department For purposes of clarification, the following information (underlined below) is being added to your copy of UCRL-53152 Part 8: Each Appendix contains 11 pages of calculated results relating to one Event in Table 1. Each set of 11 pages is marked Page 2 through Page bottom. Page 2 of each set gives the external gamma-ray exposure rates and associated values of total microcuries per square meter at 30 decay intervals and at zero time. Note that the totals at zero time include only the nuclides listed in pages 3 through 12, not all the nuclides present at zero time. Calculated values for each radionuclide at various decay intervals are given in the remaining pages--from 1 to 21 hr in Pages 3-7, from 1 to 300 d in Pages 8-11, and from 1 to 50 y in Page 12. Unless otherwise indicated, the value for each nuclide at zero time is the result of a radiochemical measurement. The measurements were performed on debris samples taken by aircraft approximately 1 to 4 hr after detonation. The production of nuclides designated by (*c>has been estimated. When no.estimate could be made, the value appears as zero. To incorporate this addendum, please staple or affix the attached page so as to cover the existing Page 2 in your document.
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Results of Calculations of .External Gamma Radiation Exposure Rates from Fallout and the Related Operations Nougat through Manuscript date: July 1981 LAWRENCE LIVERMORE LABORATORY University of California l Livermore, California l 94550 Available from: National Technical Information Service 0 U.S. Department of Commerce 5285 Port Royal Road l Springfield, VA 22161 l SlO.OtJ per copy l (Microfiche $3.50)
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This document is one of eight parts of Report UCRL-53152. Each part contains results for Events (shots) from a specific Operation or Operations, as listed here. Part 1. Operation Ranger, Events Able, Baker, Easy, Baker-2 and Fox. Part 2. Operation Buster-Jangle, Events Buster Baker, Buster Charlie, Buster Dog, Buster Easy, Jangle Sugar and Jangle Uncle. Part 3. Operation Tumbler-Snapper, Events Able, Baker, Charlie, Dog, Easy, Fox, George and How. Part 4. Operation Upshot-Knothole, Events Annie, Nancy, Ruth, Dixie, Ray, Badger, Simon, Encore, Harry, Grable and Climax. Part 5. Operation Teapot, Events Wasp, Moth, Tesla, Turk, Hornet, Bee, Ess, Apple I, Wasp Prime, HA, Post, Met, Apple II and Zucchini. Part 6. Operation Plumbob, Events Boltzmann, Franklin, Wilson, Priscilla, Hood, Diablo, John, Kepler, Owens, Pascal A, Stokes, Shasta, Doppler, Franklin Prime, Smoky, Galileo, Wheeler, Coulomb B, Laplace, Fizeau, Newton, Whitney, Charleston, Morgan and Coulomb C. Part 7. Operation Hardtack II, Events Otero, Eddy, Mora, Hidalgo, Quay, Lea, Hamilton, Dona Ana, Vesta, Rio Arriba, Socorro, Wrangell, Rushmore, Catron, Sanford, Debaca, Chavez, Humboldt, Titania and Santa Fe. Part 8. Operations Nougat through Bowline, Events Danny Boy, Sedan, Johnny Boy, Small Boy, Little Feller I, Sulky, Palanquin, Cabriolet, Buggy and Schooner. Each part of the report contains 11 pages of data relating to each Event covered by that part of the
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Detailed results for Event Danny Boy . . Detailed results for Event Sedan .... Detailed results for Event Johnny Boy . Detailed results for Event Small Boy . . Detailed results for Event Little Feller I . Detailed results for Event Sulky ..... Detailed results for Event Palanquin . Detailed results for Event Cabriolet . .
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Results of Calculations of External Gamma Radiation Exposure Rates f ram Fallout and the Related Radionuclide Compositions Operations Nougat through Bowline, 19624968 This report presents data on calculated gamma radiation exposure rates and ground deposition of related radionuclides resulting from Events that deposited detectable radioactivity outside the Nevada Test Site complex. The Events which deposited listed in Table. 1. Results of the calculations of relative external gamma radiation exposure rate and related radionuclide ground deposition are given in the Appendices. These calculations are described in detail in Ref. 2. The output of the calculation has 30 decay times, 10 from 1 to 21 h, 10 from 1 to 300 d, and 10 from 1 to 50 y. For each of these times and for zero time there are values of the external gamma radiation exposure rate normalized to I mR/h, I m above the surface, 12 h after the event, the associated values of pCi/m2 for each radionuclide, and the total Ki/m2. detectable radioactivity outside the Nevada Test Site complex’ are The 233U, 235U, 238U and 239~240Pu data were omitted primarily to keep the output unclassified. Futhermore, the natural uranium content of the soil is about one million times that received from fallout and at least half of the plutonium in Nevada and Utah soils comes from worldwide fallout.3 TABLE I. Yield, date and placement of Events of Operations Nougat through Bowline, 19624968 Shot Name Yield (kt) Date Placement Small Boy Low Little Feller I Low
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Surface roughness effects are simulated by using Beck’s values4 of (mR/h)/(~Ci/m*) for a relaxation length of 0.16 g/cm*. According to Beck, the concentration of fallout varies exponentially with soil depth, Fractionation effects were simulated by the removal of a fraction of the refractory nuclides from the calculation. In general, air drops were assumed to be unfractionated, surface and cratering Events were assumed to have 0.4 of the refractory elements present, and all other Events were assumed to have 0.5 of the refractory elements present. Each Appendix contains 11 pages of calculated results relating to one Event in Table 1. Each set of 11 pages is marked Page 2 through Page 12 at the top and A2 through Al2 (or B2 through B12, etc.) at the bottom. Page 2 of each set gives the external gamma-ray exposure rates and associated values of total microcuries per square meter at 30 decay intervals and at zero time. Note that the totals at zero time include only the nuclides listed in Pages 3 through 12, not all the nuclides present at zero time. Calculated values for each radionuclide at various decay intervals are given in the remaining pages-from 1 to 21 h in Pages 3-7, from 1 to 300 d in Page 8-11, and from 1 to 50 y in-Page 12. Unless otherwise indicated, the value for each nuclide at zero time is the result of a radiochemical measurement. The measurements were performed on debris samples taken by aircraft approximately 1 to 4 h after detonation. The production of nuclides designated by (*) has been estimated. When no estimate could be made, the value appears as 1. Announced Llnifed Sfates Nuclear Tests, July, 1945, through December, 1980, Office of Public Affairs, Nevada Operations Office, Department of Energy, Las Vegas, NV, NVO-209, Rev. 1, January 1981. 2. H. G. Hicks, Calculation of the Concentration of Any Radionuclide Deposited on the Ground by Fallout from a Nuclear Detonation, Lawrence Livermore National Laboratory, Livermore, CA, Preprint UCRL-86177 (1981). Accepted for publication in Health Physics. 3. E. Hardy, Plutonium in Soil Northeast of the Nevada Test Site, Environmental Measurements Laboratory, Department of Energy, New York, NY, HASL-306, pg. l-51, July 1, 1976. 4. H. L. Beck, Exposure Rate Conversion Factors for Radionuclides Deposited on the Ground, Environmental Measurements Laboratory, Department of Energy, New York, NY, EML-387, July, 1980.
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FRACTIUN OF REFRACTURIES PRESENT = 0.400 DEBR 1 S DECAY FROM 1 TO 21 HOURS
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DANNY BOY MICROCURIES/SQ METER PAGE 5 FRACTION CIF REFRACTORIES PRESENT = 0.400 DEBRIS DECAY I-ROM 1 TO 21 HOURS
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FRACTION tiF REFRACTBRIES PRESENT = 0 400 DEBRIS DECAY FRUM 1 TCr 21 HOURS
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BOMB FRACTION PER SQ, METER q l.l20E-11 DEBRIS DECAY FRCWI 1 TO 21 HBURS
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FRACTI 0N OF REFRACTBRI ES PRESENT = 0.400 DEBRIS DECAY FROM 1 TO 300 DAYS
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BUMB FRACTION PER SQ. METER q l.l20E-11 DEBRIS DECAY FROM 1 TO 300 DAYS
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FRACTIUN OF REFRACTURIES PRESENT = DEBRIS DECAY FR0M 1 TO 21 HUURS
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FRACTION OF REFRACTORIES PRESENT = 0.400 DEBRIS DECAY FRUM 1 TO 300 DAYS
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