1
|
Stoyer MA, Tonchev AP, Silano JA, Gooden ME, Wilhelmy JB, Tornow W, Howell CR, Krishichayan F, Finch S. Fission Product Yield Measurements from Neutron-Induced Fission of 235,238 U and 239Pu. EPJ WEB OF CONFERENCES 2020. [DOI: 10.1051/epjconf/202023203006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Fission product yields (FPY) are one of the most fundamental quantities that can be measured for a fissioning nucleus and are important for basic and applied nuclear physics. Recent measurements using mono-energetic and pulsed neutron beams generated using Triangle Universities Nuclear Laboratory’s tandem accelerator and employing a dual fission chamber setup have produced self-consistent, high-precision data critical for testing fission models for the neutron-induced fission of 235,238U and 239Pu between neutron energies of 0.5 to 15.0 MeV. These data have elucidated a low-energy dependence of FPY for several fission products using irradiations of varying lengths and neutron energies. This paper will discuss new measurements just beginning utilizing a RApid Belt-driven Irradiated Target Transfer System (RABITTS) to measure shorterlived fission products and the time dependence of fission yields, expanding the measurements from cumulative towards independent fission yields. The uniqueness of these FPY data and the impact on the development of fission theory will be discussed.
Collapse
|
2
|
Silano J, Tonchev A, Henderson R, Schunck N, Tornow W, Howell C, Krishichayan FNU, Finch S. Validating the Bohr hypothesis: Comparing fission-product yields from photon-induced fission of 240Pu and neutron-induced fission of Pu. EPJ WEB OF CONFERENCES 2020. [DOI: 10.1051/epjconf/202023903004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The Bohr hypothesis, one of the most fundamental assumptions in nuclear fission theory, states that the decay of a compound nucleus with a given excitation energy, spin and parity is independent of its formation. Using fission product yields (FPYs) as a sensitive probe, we have performed new high precision test of the combined effects of the entrance channel, spin and parity on the fission process. Two different reactions were used in a self-consistent manner to produce a compound 240Pu nucleus with the same excitation energy: neutron induced fission of 239Pu at En = 4.6 MeV and photon-induced fission of 240Pu at Eγ = 11.2 MeV. The FPYs from these two reactions were measured using quasimonoenergetic neutron beams from the TUNL's FN tandem Van de Graaff accelerator and quasimonenergetic photon beams from the High Intensity γ-ray Source (HlγS) facility. The first results comparing the FPYs from these two reactions will be presented. Implications for validating the Bohr hypothesis will be discussed.
Collapse
|
3
|
Tonchev AP, Silano JA, Hagmann C, Henderson R, Stoyer MA, Gooden M, Bredeweg T, Wilhelmy J, Tornow W, Howell C, Finch S, Krishichayan FNU. Toward short-lived and energy-dependent fission product yields from neutron-induced fission. EPJ WEB OF CONFERENCES 2020. [DOI: 10.1051/epjconf/202023903001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Fission product yields (FPYs) are an important source of information that are used for basic and applied physics. They are essential observables to address questions relevant to nucleosynthesis in the cosmos that created the elements from iron to uranium, for example, in energy generating processes from fission recycling in binary neutron star mergers; resolving the reactor neutrino anomaly; decay heat release in nuclear reactors; and many national security applications. While new applications will require accurate energy-dependent FPY data over a broad set of incident neutron energies, the current evaluated FPY data files contain only three energy points: thermal, fast, and 14-MeV incident energies.
Recent measurements using mono-energetic and pulsed neutron beams at the Triangle Universities Nuclear Laboratory (TUNL) tandem accelerator and employing a dual fission ionization chambers setup have produced self-consistent, high-precision data critical for testing fission models for the neutron-induced fission of the major actinide nuclei. This paper will present new campaign just beginning utilizing a RApid Belt-driven Irradiated Target Transfer System (RABITTS) to measure shorter-lived fission products and the time dependence of fission yields, expanding the measurements from cumulative towards independent fission yields.
Collapse
|
4
|
Gooden M, Arnold C, Bhike M, Bredeweg T, Fowler M, Tonchev A, Tornow W, Stoyer M, Vieira D, Wilhelmy J. Energy dependence of fission product yields from 235U, 238U, and 239Pu with monoenergetic neutrons between thermal and 14.8 MeV. EPJ WEB OF CONFERENCES 2017. [DOI: 10.1051/epjconf/201714604024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
5
|
Difilippo FC, Perez RB, Saussure GD, Olsen DK, Ingle RW. Measurement of the Uranium-238 to Uranium-235 Fission Cross-Section Ratio for Neutron Energies Between 0.1 and 25 MeV. NUCL SCI ENG 2017. [DOI: 10.13182/nse78-a27269] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- F. C. Difilippo
- Oak Ridge National Laboratory, P.O. Box X. Oak Ridge, Tennessee 37830
| | - R. B. Perez
- Oak Ridge National Laboratory, P.O. Box X. Oak Ridge, Tennessee 37830
| | - G. de Saussure
- Oak Ridge National Laboratory, P.O. Box X. Oak Ridge, Tennessee 37830
| | - D. K. Olsen
- Oak Ridge National Laboratory, P.O. Box X. Oak Ridge, Tennessee 37830
| | - R. W. Ingle
- Oak Ridge National Laboratory, P.O. Box X. Oak Ridge, Tennessee 37830
| |
Collapse
|
6
|
Azimi-Garakani D, Williams JG. Fission Rate Measurements with the Makrofol Solid-State Track Recorder. NUCL TECHNOL 2017. [DOI: 10.13182/nt77-a31950] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Dariush Azimi-Garakani
- University of Tehran Institute of Nuclear Science and Technology, P.O. Box 2989, Tehran, Iran
| | - John Garnett Williams
- University of London Reactor Centre Imperial College of Science and Technology, Silwood Park, Sunninghill Ascot, Berkshire SL5 7PY, England
| |
Collapse
|
7
|
Greenwood LR, Heinrich RR, Kennerley RJ, Medrzychowski R. Development and Testing of Neutron Dosimetry Techniques for Accelerator-Based Irradiation Facilities. NUCL TECHNOL 2017. [DOI: 10.13182/nt78-a32137] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- L. R. Greenwood
- Argonne National Laboratory Chemical Engineering Division, 9700 South Cass Avenue Argonne, Illinois 60439
| | - R. R. Heinrich
- Argonne National Laboratory Chemical Engineering Division, 9700 South Cass Avenue Argonne, Illinois 60439
| | - R. J. Kennerley
- Argonne National Laboratory Chemical Engineering Division, 9700 South Cass Avenue Argonne, Illinois 60439
| | - R. Medrzychowski
- Argonne National Laboratory Chemical Engineering Division, 9700 South Cass Avenue Argonne, Illinois 60439
| |
Collapse
|
8
|
Dudey ND, Popek RJ, Greenwood RC, Helmer RG, Rogers JW, Kellogg LS, Zimmer WH. Fission-Product-Rate Measurements and Yields. NUCL TECHNOL 2017. [DOI: 10.13182/nt75-a24370] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- N. D. Dudey
- Argonne National Laboratory, Argonne, Illinois 60439
| | - R. J. Popek
- Argonne National Laboratory, Argonne, Illinois 60439
| | | | - R. G. Helmer
- Aerojet Nuclear Company, Idaho Falls, Idaho 83401
| | - J W Rogers
- Aerojet Nuclear Company, Idaho Falls, Idaho 83401
| | - L. S. Kellogg
- Hanford Engineering Development Laboratory Richland, Washington 99352
| | - W. H. Zimmer
- Atlantic Richfield Hanford Company Richland, Washington 99352
| |
Collapse
|
9
|
Farrar H, McElroy WN, Lippincott EP. Helium Production Cross Section of Boron for Fast-Reactor Neutron Spectra. NUCL TECHNOL 2017. [DOI: 10.13182/nt75-a24371] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Harry Farrar
- Rockivell International Corporation Atomics International Division, Canoga Park, California 91304
| | - W. N. McElroy
- Westinghouse Hanford Company Hanford Engineering Development Laboratory Richland, Washington 99352
| | - E. P. Lippincott
- Westinghouse Hanford Company Hanford Engineering Development Laboratory Richland, Washington 99352
| |
Collapse
|
10
|
Dickens JK, Love TA, McConnell JW, Peelle RW. Fission-Product Energy Release for Times Following Thermal-Neutron Fission of Plutonium-239 and Plutonium-241 Between 2 and 14 000 s. NUCL SCI ENG 2017. [DOI: 10.13182/nse81-a20099] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J. K. Dickens
- Oak Ridge National Laboratory P.O. Box X, Oak Ridge, Tennessee 37830
| | - T. A. Love
- Oak Ridge National Laboratory P.O. Box X, Oak Ridge, Tennessee 37830
| | - J. W. McConnell
- Oak Ridge National Laboratory P.O. Box X, Oak Ridge, Tennessee 37830
| | - R. W. Peelle
- Oak Ridge National Laboratory P.O. Box X, Oak Ridge, Tennessee 37830
| |
Collapse
|
11
|
McElroy WN, Kellogg LS. Fuels and Materials Fast-Reactor Dosimetry Data Development and Testing. NUCL TECHNOL 2017. [DOI: 10.13182/nt75-a24364] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- W. N. McElroy
- Hanford Engineering Development Laboratory P.O. Box 1970, Richland, Washington 99352
| | - L. S. Kellogg
- Hanford Engineering Development Laboratory P.O. Box 1970, Richland, Washington 99352
| |
Collapse
|
12
|
Wasson OA, Carlson AD, Duvall KC. Measurement of the235U Neutron-Induced Fission Cross Section at 14.1 MeV. NUCL SCI ENG 2017. [DOI: 10.13182/nse82-a21431] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
13
|
Thompson IJ, Dardenne YMXM, Kenneally JM, Robertson A, Ahle LE, Hagmann CA, Henderson RA, Vogt D, Wu CY, Younes W. Evaluations of Fission Chain Yields for239Pu from Fission-Spectrum Neutrons. NUCL SCI ENG 2017. [DOI: 10.13182/nse10-101] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- I. J. Thompson
- Lawrence Livermore National Laboratory Livermore, California 94551
| | | | - J. M. Kenneally
- Lawrence Livermore National Laboratory Livermore, California 94551
| | - A. Robertson
- Lawrence Livermore National Laboratory Livermore, California 94551
| | - L. E. Ahle
- Lawrence Livermore National Laboratory Livermore, California 94551
| | - C. A. Hagmann
- Lawrence Livermore National Laboratory Livermore, California 94551
| | - R. A. Henderson
- Lawrence Livermore National Laboratory Livermore, California 94551
| | - D. Vogt
- Lawrence Livermore National Laboratory Livermore, California 94551
| | - C.-Y. Wu
- Lawrence Livermore National Laboratory Livermore, California 94551
| | - W. Younes
- Lawrence Livermore National Laboratory Livermore, California 94551
| |
Collapse
|
14
|
Krishichayan, Bhike M, Tonchev A, Tornow W. Fission product yield measurements using monoenergetic photon beams. EPJ WEB OF CONFERENCES 2017. [DOI: 10.1051/epjconf/201714604018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
15
|
Simakov S, Capote R, Greenwood L, Griffin P, Kahler A, Pronyaev V, Trkov A, Zolotarev K. Validation of IRDFF in252Cf Standard and IRDF-2002 Reference Neutron Fields. EPJ WEB OF CONFERENCES 2016. [DOI: 10.1051/epjconf/201610604011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
16
|
Zhu T, Han Z, Jiang L, Wang M, Lu X, Yang C, Liu R. Measurement and analysis of fission rates in depleted uranium and depleted uranium–polyethylene shells with neutrons from D-T reaction. J NUCL SCI TECHNOL 2015. [DOI: 10.1080/00223131.2014.1003110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
17
|
|
18
|
Leong L, Tassan–Got L, Audouin L, Paradela C, Wilson J, Tarrio D, Berthier B, Duran I, Le Naour C, Stéphan C. Criticality experiments and benchmarks for cross section evaluation: the neptunium case. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20134205003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
19
|
SAKURAI T, NEMOTO T, KOBAYASHI K, UNESAKI H. Measurements of Reaction Rate Ratios as Indexes of Breeding Performance in Mock-up Cores of FCA Simulating Metallic-fueled LMFBR and MOX-fueled LMFBR. J NUCL SCI TECHNOL 2012. [DOI: 10.1080/18811248.1999.9726253] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
20
|
Kai T, Kobayashi K, Yamamoto S, Cho HJ, Fujita Y, Kimura I, Ohkawachi Y, Wakabayashi T. Measurements of neutron induced fission cross-section for 242mAm from 0.003 eV to 10 keV using lead slowing-down spectrometer, thermal neutron facility and time-of-flight method. ANN NUCL ENERGY 2001. [DOI: 10.1016/s0306-4549(00)00086-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
21
|
YAMANAKA A, KIMURA I, KANAZAWA S, KOBAYASHI K, YAMAMOTO S, NAKAGOME Y, FUJITA Y, TAMAI T. Measurement of Fission Cross Section of Neptunium-237 in Resonance Region with Electron Linac—Driven Lead Spectrometer. J NUCL SCI TECHNOL 1993. [DOI: 10.1080/18811248.1993.9734560] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
22
|
Williamson TG, Lamaze GP, Gilliam DM, Eisenhauer CM. Iron and Cadmium Capture Gamma-Ray Photofission Measurements. NUCL SCI ENG 1990. [DOI: 10.13182/nse90-a23701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. G. Williamson
- University of Virginia, Department of Nuclear Engineering and Engineering Physics Charlottesville, Virginia 22901
| | - G. P. Lamaze
- National Bureau of Standards, Center for Radiation Research, Gaithersburg, Maryland 20899
| | - D. M. Gilliam
- National Bureau of Standards, Center for Radiation Research, Gaithersburg, Maryland 20899
| | - C. M. Eisenhauer
- National Bureau of Standards, Center for Radiation Research, Gaithersburg, Maryland 20899
| |
Collapse
|
23
|
|