Photofissility ofTh232measured with tagged photons from 250 to 1200 MeV

Autor:	Alessandra Fantoni, V. Mokeev, M. Taiuti, Valeria Muccifora, G. Ricco, M.V. Mebel, G. Gervino, P. Rossi, A. Leprêtre, Airton Deppman, L. Mazzaschi, M. Sanzone, V. Lucherini, P. Garganne, Alessandro Zucchiatti, E. De Sanctis, P. Levi Sandri, R. Bergère, Nicola Bianchi, M. Ripani, A. R. Reolon, P. Corvisiero, E. Polli, P. Carlos, J. D. T. Arruda-Neto, M. Anghinolfi, A. S. Iljinov
Rok vydání:	1993
Předmět:	Nuclear reaction Nuclear physics Physics Nuclear and High Energy Physics Range (particle radiation) Photon Uranium-238 Fission Monte Carlo method Photofission Nuclear Experiment Isotopes of thorium
Zdroj:	Physical Review C. 48:1785-1790
ISSN:	1089-490X 0556-2813
DOI:	10.1103/physrevc.48.1785
Popis:	The photofission cross section of [sup 232]Th was measured in the energy range 250--1200 MeV using a monochromatic tagged photon beam and a parallel-plate avalanche detector. The [sup 232]Th nuclear photofissility was obtained by measuring simultaneously and in the same energy range the photofission cross section of [sup 238]U and assuming a photofissility equal to one for [sup 238]U. It was found that, contrary to the case for heavier actinides, the [sup 232]Th photofissility value does not saturate up to 1200 MeV. Rather, it lies between 0.6 and 0.8, and shows a weak energy dependence: it increases by about 15% over an interval of 1 GeV. A comparison of these experimental findings with the predictions of an intranuclear-cascade Monte Carlo calculation is given.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e026688075cf62d005e15264690f39be https://doi.org/10.1103/physrevc.48.1785 Zobrazit plný text záznamu