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in subjects: "Nuclear Reaction Kinetics"  
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Antiproton catalyzed fusion

Description: Because of the potential application to power production, it is important to investigate a wide range of possible means to achieve nuclear fusion, even those that may appear initially to be infeasible. In antiproton catalyzed fusion, the negative antiproton shields the repulsion between the positively charged nuclei of hydrogen isotopes, thus allowing a much higher level of penetration through the repulsive Coulomb barrier, and thereby greatly enhancing the fusion cross section. Because of thei… more
Date: May 15, 1995
Creator: Morgan, D.L. Jr.; Perkins, L.J. & Haney, S.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measuring Sticking and Stripping in Muon Catalyzed Dt Fusion With Multilayer Thin Films

Description: The authors propose a direct measurement of muon sticking to alpha particles in muon catalyzed dt fusion at a high density. Exploiting the features of a multilayer thin film target developed at TRIUMF, the sticking is determined directly by detection of charged fusion products. Experimental separation of initial ticking and stripping may become possible for the first time. Monte Carlo simulations, as well as preliminary results of test measurements are described.
Date: December 1, 1995
Creator: Fujiwara, M. C.; Bailey, J. M. & Beer, G. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Muon Catalyzed Fusion in Deuterium at 3 K

Description: Muon catalyzed fusion in deuterium has traditionally been studied in gaseous and liquid targets. The TRIUMF solid hydrogen layer target system has been used to study the fusion reaction rates in the solid phase at a target temperature of 3 K. Both branches of the cycle were observed; neutrons by a liquid organic scintillator, and protons by a silicon detector located inside the target system. The effective molecular formation rate from the upper hyperfine state and the spin exchange rate have b… more
Date: December 1, 1995
Creator: Knowles, P. E.; Beer, G. A. & Bailey, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nuclear multifragmentation critical exponents

Description: In a recent Letter, cited in a reference, the EoS collaboration presented data of fragmentation of 1 A GeV gold nuclei incident on carbon. By analyzing moments of the fragment charge distribution, the authors claim to determine the values of the critical exponents {gamma}, {beta}, and {tau} for finite nuclei. These data represent a crucial step forward in the understanding of the physics of nuclear fragmentation. However, as shown in this paper, the analysis presented in the cited reference is … more
Date: December 31, 1995
Creator: Bauer, W. & Friedman, W. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reducible emission probabilities and thermal scaling in multifragmentation

Description: Intermediate-mass-fragment multiplicity distributions for a variety of reactions at intermediate energies are shown to be binomial and thus reducible at all measured transverse energies. From these distributions a single binary event probability can be extracted that has a thermal dependence. A strong thermal signature is also found in the charge distributions. The {eta}-fold charge distributions are reducible to the {eta}-fold charge distributions through a simple scaling that is dictated by f… more
Date: August 1, 1995
Creator: Moretto, L. G.; Phair, L. & Tso, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Proposed solution to the {open_quotes}k{sub eff} of the world{close_quotes} problem

Description: In 1971 Whitesides posed a Monte Carlo (MC) problem which he called {open_quotes}computing the k{sub eff} of the world.{close_quotes} This problem is still troublesome today. The problem arose in MC studies of a 9 x 9 x 9 configuration of weakly coupled Pu spheres, initially identical, with the whole array surrounded by water. The MC eigenvalue for this array was .93. When the central sphere was replaced by another, just critical in isolation, the MC eigenvalue was still .93. Here we consider a… more
Date: December 31, 1995
Creator: Gelbard, E.M. & Roussel, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Time-of-flight measurement of resonant molecular formation in muon catalyzed dt fusion

Description: Preliminary results are reported for an experiment at TRIUMF where a time-of-flight technique was tested for measuring the energy dependence of the rate for muon catalyzed dt fusion. Muonic tritium toms were created following transfer of negative muons from muonic protium in a layer of solid hydrogen (protium) containing a small fraction of tritium. The atoms escaped from the solid layer via the Ramsauer-Townsend mechanism, traversed a drift region of 18 mm, and then struck an adjacent layer of… more
Date: November 1, 1995
Creator: Marshall, G.M.; Adamczak, A. & Bailey, J.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Collisions of deformed nuclei and superheavy-element production

Description: A detailed understanding of complete fusion cross sections in heavy-ion collisions requires a consideration of the effects of the deformation of the projectile and target. The aim here is to show that deformation and orientation of the colliding nuclei have a very significant effect on the fusion-barrier height and on the compactness of the touching configuration. To facilitate discussions of fusion configurations of deformed nuclei, the authors develop a classification scheme and introduce a n… more
Date: September 1, 1995
Creator: Iwamoto, Akira; Moeller, P.; Nix, J. R. & Sagawa, Hiroyuki
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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