Radioactivity in atomic-bomb samples from exposure to environmental neutrons

Health Physics

Volumn 93, Issue 6, 2007, Pages 689-695

  Endo, S ^a   Shizuma, K ^a   Tanaka, K ^a   Ishikawa, M ^a   Ruhm W ^b,c   Egbert, S D ^d   Hoshi, M ^a  

^a HIROSHIMA UNIVERSITY   (Japan)

^b UNIVERSITY OF MUNICH   (Germany)

^c INSTITUTE OF EPIDEMIOLOGY   (Germany)

^d SCIENCE APPLICATIONS INTERNATIONAL CORPORATION   (United States)

Author keywords

Atomic bomb; Neutron dosimetry; Neutrons; Radioactivity, environmental

Indexed keywords

CALIFORNIUM 252; CHLORINE 36; COBALT 60; EUROPIUM; EUROPIUM 152; RADIOISOTOPE;

ARTICLE; ATOMIC BOMB; COSMIC RADIATION; HUMAN; NEUTRON; NEUTRON DOSIMETRY; NEUTRON RADIATION; PRIORITY JOURNAL; RADIATION DOSE; RADIATION EXPOSURE; RADIATION MONITORING; RADIATION PROTECTION; RADIOACTIVITY;

CALIFORNIUM; COBALT RADIOISOTOPES; ENVIRONMENT; EUROPIUM; HELIUM; ISOTOPES; NEUTRONS; NUCLEAR WEAPONS; RADIATION DOSAGE; RADIOISOTOPES;

EID: 36048971331     PISSN: 00179078     EISSN: None     Source Type: Journal    
DOI: 10.1097/01.HP.0000278420.51860.2d     Document Type: Article

References (21)

1. Briesmeister JF. MCNP - a general Monte Carlo N-particle transport code, version 4C. Los Alamos, NM: Los Alamos National Laboratory; Report LA-13709-M; 2000.
2. 51Cr in stainless steel collected from residences in the JCO neighborhood. J Environm Radioact 50:83-88; 2000a.
3. 51Cr. J Environm Radioact 50:88-96; 2000b.
4. Goldhagen P, Reginatto M, Kniss T, Wilson JW, Singleterry RC, Jones IW, Van Steveninck W. Measurement of the energy spectrum of cosmic-ray induced neutrons aboard an ER-2 high-altitude airplane. Nucl Instrum Meth A 476:42-51; 2002.
5. Hoshi M, Hiraoka M, Hayakawa N, Sawada S, Munaka M, Kuramoto A, Oka T, Iwatani K, Shizuma K, Hasai H, Kobayashi T. Benchmark test of transport calculations of gold and nickel activation with implications for neutron kerma at Hiroshima. Health Phys 63:532-542; 1992.
6. Iwatani K, Hoshi M, Shizuma K, Hiraoka M, Hayakawa N, Oka T, Hasai H. Benchmark test of neutron transport calculations: indium, nickel, gold, europium and cobalt activation with and without moderated fission neutrons by iron simulating the Hiroshima atomic bomb casing. Health Phys 67:354-362; 1994.
7. 152Eu: reconciliation of discrepancy between measurements and calculation. Health Phys 92:367-370; 2007.
8. Kornmayer H, Mielke HH, Engler J, Knapp J. High-energy cosmic ray neutrons at sea level. J Phys G Nucl Part Phys 21:439-449; 1995.
9. Leuthold G, Mares V, Rühm W, Weitzenegger E. Long-term measurements of cosmic ray neutrons by means of a Bonner spectrometer at mountain altitudes - first results. [Epub ahead of print]. Radiat Prot Dosim O: ncm102v1-6; 2007.
10. Nakamura T, Nunomiya T, Abe S, Terunuma K, Suzuki H. Sequential measurements of cosmic-ray neutron spectrum and dose rate at sea level in Sendai, Japan. J Nucl Sci Tech 42:843-853; 2005.
11. Nakanishi T, Miwa K, Ohki R. Specific radioactivity of europium-152 in roof tiles exposed to atomic bomb. J Radiat Res 39:243-250; 1998.
12. 36Cl at large distances. Part II: Natural in situ production as a source. Radiat Environ Biophys 44:87-96; 2005.
13. Phillips FM, Stone WD, Fabryka-Martin JT. An improved approach to calculating low-energy cosmic-ray neutron fluxes near the land/atmosphere interface. Chem Geol 175:689-701; 2001.
14. Schraube H, Mares V, Roesler S, Heinrich W. Experimental verification and calculation of aviation route dose. Radiat Protect Dosim 86:309-315; 1999.
15. Sheua RJ, Lina JS, Jiang SH. A study of the cosmic-ray neutron field near interfaces. Nucl Instrum Methods A 476:74-79; 2002.
16. 152Eu radioactivity induced by neutrons from the Hiroshima atomic bomb. Nucl Instrum Meth B 66:459-464; 1991.
17. 60Co activities induced by neutrons from the Hiroshima atomic bomb. Health Phys 65:272-282; 1993.
18. 60Co activity in steel samples exposed to the Hiroshima atomic-bomb neutrons. Health Phys 75:278-284; 1998.
19. United Nations Science Committee on the Effects of Atomic Radiation. UNSCEAR 2000 Report to the General Assembly, with scientific annexes. Vol. I, Annex A: Dose assessment methodologies. New York: United Nations; 2000.
20. Wiegel B, Alevra AV, Matzke M, Schrewe UJ, Wittstock J. Spectrometry using the PTB neutron multisphere spectrometer (NEMUS) at flight attitudes and at ground level. Nucl Instrum Meth A 476:52-57; 2002.
21. Yamashita M, Stephens LD, Patterson HW. Cosmic-ray-produced neutrons at ground level: neutron production rate and flux distribution. J Geophys Res 71:3817-3834; 1966.