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24 April 2024 |
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Photofission of heavy nuclei at energies up to 4 GeV | C Cetina
; B L Berman
; W J Briscoe
; P L Cole
; G Feldman
; P Heimberg
; L Y Murphy
; S A Philips
; J C Sanabria
; H Crannell
; A Longhi
; D I Sober
; G Y Kezerashvili
; | Date: |
19 Jun 2000 | Journal: | Phys Rev Lett, 84 (25), 5740-3 | Abstract: | Total photofission cross sections for 238U, 235U, 233U, 237Np, 232Th, and natPb have been measured simultaneously, using tagged photons in the energy range Egamma=0.17-3.84 GeV. This was the first experiment performed using the Photon Tagging Facility in Hall B at Jefferson Lab. Our results show that the photofission cross section for 238U relative to that for 237Np is about 80% over the entire energy range, implying the presence of important processes which compete with fission. If we assume that for 237Np the photofission probability is equal to unity, we observe a significant shadowing effect, starting below 1.5 GeV. | Source: | PubMed, pmid10991043 | Services: | Forum | Review | Favorites |
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