Activation cross-sections for short-lived reaction products on hafnium isotopes induced by 1 – 20 MeV neutrons
Results of new activation cross-section measurements for production of 178m1Hf (T1/2 = 4.0 s) and 179m1Hf (T1/2 = 18.67 s) are presented for the following reactions: 178Hf(n,n´)178m1Hf, 179Hf(n,2n)178m1Hf, 180Hf(n,3n)178m1Hf, 179Hf(n,n´)179m1Hf, and 180Hf(n,2n)179m1Hf. The irradiations were carried...
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EDP Sciences
2023-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2023/10/epjconf_nd2023_01038.pdf |
| _version_ | 1797807746857304064 |
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| author | Semkova Valentina Demerdjiev Anguel Moens André Otuka Naohiko Plompen Arjan Tonev Dimitar |
| author_facet | Semkova Valentina Demerdjiev Anguel Moens André Otuka Naohiko Plompen Arjan Tonev Dimitar |
| author_sort | Semkova Valentina |
| collection | DOAJ |
| description | Results of new activation cross-section measurements for production of 178m1Hf (T1/2 = 4.0 s) and 179m1Hf (T1/2 = 18.67 s) are presented for the following reactions: 178Hf(n,n´)178m1Hf, 179Hf(n,2n)178m1Hf, 180Hf(n,3n)178m1Hf, 179Hf(n,n´)179m1Hf, and 180Hf(n,2n)179m1Hf. The irradiations were carried out at the 7-MV Van de Graaff accelerator at EC-JRC, Geel. Neutrons in the 1-3 MeV energy range were produced via the 3H(p,n)3He reaction. Deuteron beam and a deuterium gas target were used to produce 5 and 6 MeV neutrons. For the production of quasi-monoenergetic neutrons between 16 and 19.5 MeV the 3H(d,n)4He reactions was employed. Both samples with natural composition and isotopic enrichment were employed to differentiate reactions leading to the same product. An automated pneumatic system was used for the sample irradiation, transport and radioactivity measurements. The radioactivity of the samples was determined by standard gamma-spectrometry using HPGe detector. The results obtained in the present work are compared with the data from other authors and TENDL-2017 evaluation. |
| first_indexed | 2024-03-13T06:27:16Z |
| format | Article |
| id | doaj.art-d11c270c957345dfbe5afa4f1824c5fe |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-03-13T06:27:16Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-d11c270c957345dfbe5afa4f1824c5fe2023-06-09T09:16:15ZengEDP SciencesEPJ Web of Conferences2100-014X2023-01-012840103810.1051/epjconf/202328401038epjconf_nd2023_01038Activation cross-sections for short-lived reaction products on hafnium isotopes induced by 1 – 20 MeV neutronsSemkova Valentina0Demerdjiev Anguel1Moens André2Otuka Naohiko3Plompen Arjan4Tonev Dimitar5Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of SciencesInstitute for Nuclear Research and Nuclear Energy, Bulgarian Academy of SciencesEuropean Commission, Joint Research CentreNuclear Data Section, International Atomic Energy AgencyEuropean Commission, Joint Research CentreInstitute for Nuclear Research and Nuclear Energy, Bulgarian Academy of SciencesResults of new activation cross-section measurements for production of 178m1Hf (T1/2 = 4.0 s) and 179m1Hf (T1/2 = 18.67 s) are presented for the following reactions: 178Hf(n,n´)178m1Hf, 179Hf(n,2n)178m1Hf, 180Hf(n,3n)178m1Hf, 179Hf(n,n´)179m1Hf, and 180Hf(n,2n)179m1Hf. The irradiations were carried out at the 7-MV Van de Graaff accelerator at EC-JRC, Geel. Neutrons in the 1-3 MeV energy range were produced via the 3H(p,n)3He reaction. Deuteron beam and a deuterium gas target were used to produce 5 and 6 MeV neutrons. For the production of quasi-monoenergetic neutrons between 16 and 19.5 MeV the 3H(d,n)4He reactions was employed. Both samples with natural composition and isotopic enrichment were employed to differentiate reactions leading to the same product. An automated pneumatic system was used for the sample irradiation, transport and radioactivity measurements. The radioactivity of the samples was determined by standard gamma-spectrometry using HPGe detector. The results obtained in the present work are compared with the data from other authors and TENDL-2017 evaluation.https://www.epj-conferences.org/articles/epjconf/pdf/2023/10/epjconf_nd2023_01038.pdf |
| spellingShingle | Semkova Valentina Demerdjiev Anguel Moens André Otuka Naohiko Plompen Arjan Tonev Dimitar Activation cross-sections for short-lived reaction products on hafnium isotopes induced by 1 – 20 MeV neutrons EPJ Web of Conferences |
| title | Activation cross-sections for short-lived reaction products on hafnium isotopes induced by 1 – 20 MeV neutrons |
| title_full | Activation cross-sections for short-lived reaction products on hafnium isotopes induced by 1 – 20 MeV neutrons |
| title_fullStr | Activation cross-sections for short-lived reaction products on hafnium isotopes induced by 1 – 20 MeV neutrons |
| title_full_unstemmed | Activation cross-sections for short-lived reaction products on hafnium isotopes induced by 1 – 20 MeV neutrons |
| title_short | Activation cross-sections for short-lived reaction products on hafnium isotopes induced by 1 – 20 MeV neutrons |
| title_sort | activation cross sections for short lived reaction products on hafnium isotopes induced by 1 20 mev neutrons |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2023/10/epjconf_nd2023_01038.pdf |
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