Multi-section fission ionization chamber for measurement of 239 Pu ( n , γ) reaction in fission tagging method

The Pu-239(n, gamma) reaction cross section is very important for operation of both thermal and fast reactors, when loaded with MOX fuels. According to the NEA/OECD High Priority Request List the precision of cross section data for this reaction should be improved. The cross section of (n, f) reacti...

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Veröffentlicht in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2024, Vol.1067
Hauptverfasser: Alcayne, V, Andrzejewski, J., Cano-Ott, D., Gawlik-Ramiega, A., Sanchez-Caballero, A., Sibbens, G., Vanleeuw, D., Aberle, O., Altieri, S., Amaducci, S., Bacak, M., Correa, J. Balibrea, Beltrami, C., Bernardes, A. P., Berthoumieux, E., Beyer, R., Bosnar, D., Caamano, M., Calvino, F., Calviani, M., Castelluccio, D. M., Cerutti, F., Cescutti, G., Chasapoglou, S., Chiaveri, E., Camprini, P. Console, Cortes, G., Cortes-Giraldo, M. A., Cosentino, L., Cristallo, S., Dellmann, S., Di Castro, M., Di Maria, S., Diakaki, M., Domingo-Pardo, C., Dressler, R., Duran, I, Fargier, S., Fernandez, B., Fernandez-Dominguez, B., Furman, V, Garcia-Infantes, F., Gervino, G., Gilardoni, S., Gonzalez-Romero, E., Guerrero, C., Gunsing, F., Heyse, J., Jenkins, D. G., Junghans, A., Kadi, Y., Kaperoni, K., Knapova, I, Kokkoris, M., Kopatch, Y., Krticka, M., Kyritsis, N., Ladarescu, I, Lederer-Woods, C., Lerendegui-Marco, J., Lerner, G., Martinez, T., Masi, A., Massimi, C., Mastinu, P., Maugeri, E. A., Mazzone, A., Mengoni, A., Michalopoulou, V, Milazzo, P. M., Mucciola, R., Murtas, F., Musumarra, A., Negret, A., Fiol, A. Perez de Rada, Perez-Maroto, P., Pellegriti, M. G., Petrone, C., del Olmo, J. Plaza, Pomp, Stephan, Porras, I, Praena, J., Quesada, J. M., Reifarth, R., Rochman, D., Romanets, Y., Rubbia, C., Schillebeeckx, P., Sekhar, A., Sosnin, N. , V, Stamati, M. E., Sturniolo, A., Tagliente, G., Torres-Sanchez, P., Vagena, E., Valenta, S., Vaz, P., Wallner, A., Woods, P. J., Wright, T.
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Sprache:eng
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Zusammenfassung:The Pu-239(n, gamma) reaction cross section is very important for operation of both thermal and fast reactors, when loaded with MOX fuels. According to the NEA/OECD High Priority Request List the precision of cross section data for this reaction should be improved. The cross section of (n, f) reaction is much higher compared to (n, gamma) for this isotope. In such conditions the fission tagging technique could be applied to identify the fission background. In the past, this technique was successfully used for capture measurements at the n_TOF facility at CERN. The multi-section fission ionization chamber was constructed and used in the combination with Total Absorption Calorimeter (TAC) for detecting gamma rays for the precise measurement of Pu-239(n, gamma) reaction cross section at the n_TOF facility.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2024.169649