Study of Photon Strength Function of Actinides: the Case of ²³⁵U, ²³⁸Np and ²⁴¹Pu

Guerrero, C.; Álvarez-Velarde, F.; Cano-Ott, D.; Martínez, T.; Mendoza, E.; Villamarin, D.; Colonna, N.; Meaze, M. H.; Marrone, S.; Tagliente, G.; Terlizzi, R.; Belloni, F.; Abbondanno, U.; Fujii, K.; Milazzo, P. M.; Moreau, C.; Aerts, G.; Berthoumieux, E.; Dridi, W.; Badurek, Gerald; Jericha, Erwin; Leeb, Helmut; Oberhummer, Heinz; Pigni, M.; Ventura, A.

doi:10.3938/jkps.59.1510

Record link:

http://hdl.handle.net/20.500.12708/162248

Title:

Study of Photon Strength Function of Actinides: the Case of ²³⁵U, ²³⁸Np and ²⁴¹Pu

Citation:

Guerrero, C., Álvarez-Velarde, F., Cano-Ott, D., Martínez, T., Mendoza, E., Villamarin, D., Colonna, N., Meaze, M. H., Marrone, S., Tagliente, G., Terlizzi, R., Belloni, F., Abbondanno, U., Fujii, K., Milazzo, P. M., Moreau, C., Aerts, G., Berthoumieux, E., Dridi, W., … Ventura, A. (2011). Study of Photon Strength Function of Actinides: the Case of ²³⁵U, ²³⁸Np and ²⁴¹Pu. Journal of the Korean Physical Society, 59(2(3)), 1510–1513. https://doi.org/10.3938/jkps.59.1510

Publisher DOI:

10.3938/jkps.59.1510

Publication Type:

Artikel - Original Research Article

Article - Original Research Article

Language:

English

Organisational Unit:

E141-04 - Forschungsbereich Neutron- and Quantum Physics
E141-03 - Forschungsbereich Nuclear and Particle Physics

Journal:

Journal of the Korean Physical Society

ISSN:

0374-4884

Date (published):

2011

Number of Pages:

Publisher:

KOREAN PHYSICAL SOC

Peer reviewed:

Yes

Keywords:

General Physics and Astronomy; Neutron capture; TAC; Photon/Gamma strength functions; Pygmy; Scissor mode; nTOF; Total absorption calorimeter

Abstract:

The decay from excited levels in medium and heavy nuclei can be described in a statistical approach by means of Photon Strength Functions and Level Density distributions. The study of electromagnetic cascades following neutron capture based on the use of high effciency detectors has been shown to be well suited for probing the properties of the Photon Strength Function of heavy (high level density) and/or radioactive (high background) nuclei. In this work we have investigated for the first time the validity of the recommended PSF of actinides, in particular ²³⁵U, ²³⁸Np and ²⁴¹Pu. Our study includes the search for resonance structures in the PSF below Sₙ and draws conclusions regarding their existence and their characteristics in terms of energy, width and electromagnetic nature.

Research Areas:

Materials Characterization: 25%
Quantum Many-Body Systems: 15%
Quantum Modelling and Simulation: 25%
Photonics: 20%
Modelling and Simulation: 15%

Science Branch:

Physik, Mechanik, Astronomie

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