15 Fission Fragment Mass, Charge and Energy Distributions

doi:10.1515/9783110809824.535

Cited by 3 publications

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“…They elucidate the types of experimental approaches and the information we usually wish to obtain such as cross sections for individual product nuclei, their variation with incident energy, and the energy spectra and angular distributions of the reaction products. For reasons of space limitations, radiochemical studies of low-energy fission are not covered in this article, and the reader is referred to extensive review articles [3,6,7], The same holds for radiochemical studies of proton-induced reactions where the techniques are reviewed in [8] and the pertinent results in [9]. Thus, we concentrate on heavy-ion reactions close to the Coulomb barrier and include one example for a reaction study at relativistic energies.…”

Section: Introductionmentioning

confidence: 99%

Radiochemical Studies of Complex Nuclear Reactions

Kratz

1995

Radiochimca Acta

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Low-energy nuclear fission, heavy-ion reactions close to theCoulomb barrier, proton-nucleus and nucleus-nucleus collisions at relativistic energies have traditionally been investigated by applying radiochemical techniques, i.e. by detecting heavy fragments produced in these reactions via their radioactive decay. This article presents a number of selected examples of studies in which various nuclear reaction mechanisms were investigated with different activation techniques. These do not always include chemical separations of the reaction product mixture even though the achievement of ultra-high sensitivity for the detection of rare reaction channels does require those. High-resolution spectroscopy of y-rays, X-rays, α-particles and spontaneous-fission decays are being used to identify individual isotopes. Cross sections are determined with respect to proton number Ζ and neutron number Ν with respect to bombarding energy, with respect to emission angle and recoil range. The examples given refer to heavy-ion fusion, the reseparation channels in case of dynamically hindered fusion, damped binary reactions and the N/Z degree of freedom, the tilting mode and the excitation energy sharing in quasi-fission reactions, quasi-elastic transfer, and, at relativistic energies, to Coulomb excitation of the 2-phonon giant dipole resonance in heavy nuclei. The experimental techniques are presented and the pertinent results are discussed.

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