Interaction of 300-GeV protons with uranium

Chang, S. K.; Sugarman, Nathan

doi:10.1103/physrevc.9.1138

Cited by 31 publications

(3 citation statements)

References 9 publications

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“…This effect is not one primarily re-123 flecting differences in the charge dispersion because it does not correlate well with the charge dispersion variable, ZA -Z. The observed decrease is ' rather localized in mass as it doesn' t appear to extend into the A'6100 region (5). We are as yet at a loss to explain this effect and are actively continuing our measurements in this mass region.…”

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confidence: 88%

Deexcitation processes in nuclear reactions. Progress report, May 1, 1972- -April 30, 1973

Porile¹

1973

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High-and low-energy nuclear reaction studies have been performed. The high-energy projects include a comparative study of the nuclear reactions of silver with 300-and 11.5-GeV protons; a comparative study of cross sections and recoil properties of products in the A=120-140 mass region from the inter-238 action of U with 300-and 11.5-GeV protons; measurement of the charge dispersion and recoil properties of products in the A0131 region from the inter-197 action of Au with 11.5 GeV protons; study of the energy dependence of the recoil properties of neutron deficient products with A=131 from the inter-238 action of U with high-energy protons; differential range study of products with A%131 from the interaction of U with 11.5 GeV protons; study of a frag-238 24 mentation product, Na, in pion-induced reactions. The low-energy research includes a study of the energy dependence of isospin mixing in the Ga com-69 49 pound nucleus; tests of the independence hypothesis in the decay of the V, 52 55 69 Cr, Mn, and Ga compound nuclei formed in protonand a-induced reactions; a test of the independence hypothesis in the decay of Br formed in reactions 75 induced by C and 0 ions. 12 16

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confidence: 88%

Deexcitation processes in nuclear reactions. Progress report, May 1, 1972- -April 30, 1973

Porile¹

1973

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“…They are usually understood in terms of an intranuclear cascade followed by an evaporation stage. An important aspect of these reactions which has emerged recently is that the gross features of tl1is interaction are independent of proton bombarding energy from a few 4 GeV up to 300 GeV. that is, it appears that above a few GeV, increasing the proton energy does not deposit any more energy in the target nucleus.…”

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confidence: 99%

Fragments from uranium irradiated by 2.1 GeV/nucleon deuterons and alpha particles

et al. 1975

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Energy spectra at 90° in the laboratory were obtained for He, Li, Be, and B fragments from a uranium target irradiated with 4.9 GeV protons and 2.1 GeV/nucleon deuterons and alpha particles. and 155° were also obtained with the proton and alpha particle beams.In comparing the incident deuteron data with the incident proton data, · it was found that the cross sections were a factor of 1.5 higher but the shapes of the energy spectra were unchanged. However, with incident alpha particles it was found that the cross sections were a factor of 3 to 4 larger, and the energy spectra were somewhat broadened indicating that the effective Coulomb barriers are 15% lower, and the apparent temperatures 1.5 MeV higher. It is concluded that in the alpha particle irradiations the deposition energies are larger than with either incident protons or incident deuterons.-2-

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“…A large fraction of the experiments proposed by the group of nuclear chemsits associated in Experiment E-8l have been completed, resulting in a number of publications (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13) . Based on these results, it is now possible to propose a series of more detailed experiments in order to clarify further the mechanisms of interactions of multi GeV protons with complex nuclei.…”

Section: Introductionmentioning

confidence: 99%

A Proposal for the Study of High-Energy Reaction Mechanisms by th Measurement of the Angular and Energy Distributions of Nuclei Recoiling from Targets Bombarded with 200-300 GeV Protons

Kaufman¹,

Steinberg²,

Wilkins³

et al. 1975

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Interaction of 300-GeV protons with uranium

Cited by 31 publications

References 9 publications

Deexcitation processes in nuclear reactions. Progress report, May 1, 1972- -April 30, 1973

Deexcitation processes in nuclear reactions. Progress report, May 1, 1972- -April 30, 1973

Fragments from uranium irradiated by 2.1 GeV/nucleon deuterons and alpha particles

A Proposal for the Study of High-Energy Reaction Mechanisms by th Measurement of the Angular and Energy Distributions of Nuclei Recoiling from Targets Bombarded with 200-300 GeV Protons

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