ORCID Profile
0000-0001-8521-3635
Current Organisations
TRIUMF
,
University of Victoria
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Publisher: Korean Physical Society
Date: 12-08-2011
DOI: 10.3938/JKPS.59.1624
Publisher: IOP Publishing
Date: 2010
Publisher: American Physical Society (APS)
Date: 11-04-2016
Publisher: Springer Science and Business Media LLC
Date: 03-2012
Publisher: Elsevier BV
Date: 2010
Publisher: Korean Physical Society
Date: 12-08-2011
DOI: 10.3938/JKPS.59.1620
Publisher: American Physical Society (APS)
Date: 17-03-2011
Publisher: American Physical Society (APS)
Date: 29-05-2012
Publisher: American Physical Society (APS)
Date: 09-03-2021
Publisher: American Physical Society (APS)
Date: 14-05-2014
Publisher: IOP Publishing
Date: 08-02-2012
Publisher: AIP
Date: 2011
DOI: 10.1063/1.3586160
Publisher: American Physical Society (APS)
Date: 28-08-2017
Publisher: Korean Physical Society
Date: 12-08-2011
DOI: 10.3938/JKPS.59.1813
Publisher: Cambridge University Press (CUP)
Date: 2012
DOI: 10.1071/AS11069
Abstract: The technique of accelerator mass spectrometry (AMS) offers a complementary tool for studying long-lived radionuclides in nuclear astrophysics: (1) as a tool for investigating nucleosynthesis in the laboratory and (2) via a direct search of live long-lived radionuclides in terrestrial archives as signatures of recent nearby supernova-events. A key ingredient to our understanding of nucleosynthesis is accurate cross-section data. AMS was applied for measurements of the neutron-induced cross sections 13 C(n, γ ) and 14 N(n,p), both leading to the long-lived radionuclide 14 C. Solid s les were irradiated at Karlsruhe Institute of Technology with neutrons closely resembling a Maxwell–Boltzmann distribution for kT = 25 keV, and with neutrons of energies between 123 and 178 keV. After neutron activation the amount of 14 C nuclides in the s les was measured by AMS at the VERA (Vienna Environmental Research Accelerator) facility. Both reactions, 13 C(n, γ ) 14 C and 14 N(n,p) 14 C, act as neutron poisons in s-process nucleosynthesis. However, previous experimental data are discordant. The new data for both reactions tend to be slightly lower than previous measurements for the 25 keV Maxwell–Boltzmann energy distribution. For the higher neutron energies no previous data did exist for 13 C(n, γ ), but model calculations indicated a strong resonance structure between 100 and 300 keV which is confirmed by our results. Very limited information is available for 14 N(n,p) at these energies. Our new data at 123 and 178 keV suggest lower cross sections than expected from previous experiments and data evaluations.
Publisher: EDP Sciences
Date: 2017
Publisher: Elsevier BV
Date: 04-2010
Publisher: EDP Sciences
Date: 2017
Publisher: Korean Physical Society
Date: 12-08-2011
DOI: 10.3938/JKPS.59.1410
Publisher: American Physical Society (APS)
Date: 30-04-2008
Publisher: American Physical Society (APS)
Date: 08-01-2019
Publisher: American Physical Society (APS)
Date: 14-01-2019
Publisher: Elsevier BV
Date: 06-2007
Publisher: American Physical Society (APS)
Date: 24-05-2018
Publisher: American Physical Society (APS)
Date: 13-11-2006
Publisher: Elsevier BV
Date: 12-2011
Publisher: IOP Publishing
Date: 28-09-2012
No related grants have been discovered for Iris Dillmann.