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The (t,d) reaction on the Ni isotopes with polarized tritons

Description: The (t vector,d) reaction has been measured on targets of /sup 58/ /sup 60/ /sup 62/ /sup 64/Ni with 17 MeV polarized tritons. Spectroscopic factors, angular momentum and total spin transfer were obtained from the differential cross section and A/sub y/ values of levels up to 3.5 MeV in excitation energy. The present (t,d) measurement enables a better description of the 9/2/sup +/ and 5/2/sup +/ states which show significant shell crossing effects as a function of increasing neutron number.
Date: January 1, 1980
Creator: Flynn, E. R.; Cizewski, J. A.; Brown, R. E.; Hardekopf, R. A. & Sunier, J. W.
Partner: UNT Libraries Government Documents Department
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Polarized triton scattering from /sup 26/Mg, /sup 27/Al and /sup 28/Si at 17 MeV

Description: Differential-cross-section and analyzing-power angular distributions were measured for 17 MeV tritons elastically scattered from targets of /sup 26/Mg, /sup 27/Al, and /sup 28/Si in the angular range 20 to 160/sup 0/. The experiment was performed at the Los Alamos Scientific Laboratory Van de Graaff facility using the Lamb-shift polarized triton source and the supercube scattering chamber. A pair of detector telescopes with angular resolutions of +-0.4/sup 0/ detected the reaction products, wit… more
Date: January 1, 1980
Creator: Hardekopf, R.A.; Brown, R.E.; Correll, F.D. & Ohlsen, G.G.
Partner: UNT Libraries Government Documents Department
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Gas utilization in TFTR (Tokamak Fusion Test Reactor) neutral beam injectors

Description: Measurements of gas utilization in a test TFTR neutral beam injector have been performed to study the feasibility of running tritium neutral beams with existing ion sources. Gas consumption is limited by the restriction of 50,000 curies of T/sub 2/ allowed on site. It was found that the gas efficiency of the present long-pulse ion sources is higher than it was with previous short-pulse sources. Gas efficiencies were studied over the range of 35 to 55%. At the high end of this range the neutral … more
Date: August 1, 1987
Creator: Kamperschroer, J. H.; Gammel, G. M.; Kugel, H. W.; Grisham, L. R.; Stevenson, T. N.; von Halle, A. et al.
Partner: UNT Libraries Government Documents Department
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R-matrix analyses of light-element reactions for fusion applications

Description: Comprehensive R-matrix analyses of reactions in light systems done at LASL contain cross-section information of interest in fusion applications. Results for analyses of the 4-, 5-, 6-, and 7-nucleon systems are presented, with particular emphasis on cross sections for the T(d,n), D(d,n) D(d,p), T(p,2n), and /sup 6/Li(p,/sup 3/He) fusion reactions.
Date: January 1, 1979
Creator: Hale, G.M. & Dodder, D.C.
Partner: UNT Libraries Government Documents Department
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Application of nuclear microlocalization techniques to biomedical problems

Description: Ion beams at the Brookhaven 3.5 MV Research Van de Graaff accelerator have been used for elemental analysis and distribution in biomedical samples. Results from several collaborations are presented. Both collimated and uncollimated charged particle beams are used for elemental analysis by measurement of characteristic x-rays (PIXE). A collimated proton beam, using a pinhole collimator (approx. 20 ..mu..m) has been used as a particle microprobe in the laboratory ambient. Thick, essentially unpre… more
Date: October 1, 1980
Creator: Kraner, H. W. & Jones, K. W.
Partner: UNT Libraries Government Documents Department
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Analysis of the tritium-water (T-H{sub 2}O) system for a fusion material test facility

Description: The need for a high flux, high energy neutron test facility to evaluate performance of fusion reactor materials is urgent. An accelerator based D-Li source is generally accepted as the most reasonable approach to a high flux neutron source in the near future. The idea is to bombard a high energy (35 MeV) deuteron beam into a lithium target to produce high energy neutrons to simulate the fusion environment. More recently it was proposed to use a 21 MeV triton beam incident on a water jet target … more
Date: April 1, 1992
Creator: Hassanein, A.; Smith, D. L.; Sze, D. K. & Reed, C. B.
Partner: UNT Libraries Government Documents Department
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Observation of Doppler-shifted T{alpha} emission from TFTR tritium neutral beams

Description: 195 tritium ion source shots were injected into TFTR high power plasmas during December 1993--March 1994. In addition, four highly diagnosed pulses were fired into the calorimeter. Analysis of the Doppler-shifted T{alpha} emission of the beam in the neutralizer has revealed that the extracted ion composition for deuterium and tritium are indistinguishable: 0.72{plus_minus}0.04 D{sup +}, 0.22{plus_minus}0.02 D{sub 2}{sup +}, 0.07{plus_minus}0.01 D{sub 3}{sup +} compared to 0.72{plus_minus}0.04 T… more
Date: June 1, 1994
Creator: Kamperschroer, J. H.; Grisham, L. R.; Lagin, L. J.; O`Connor, T. E.; Newman, R. A.; Stevenson, T. N. et al.
Partner: UNT Libraries Government Documents Department
open access

Analysis of the tritium-water (T-H sub 2 O) system for a fusion material test facility

Description: The need for a high flux, high energy neutron test facility to evaluate performance of fusion reactor materials is urgent. An accelerator based D-Li source is generally accepted as the most reasonable approach to a high flux neutron source in the near future. The idea is to bombard a high energy (35 MeV) deuteron beam into a lithium target to produce high energy neutrons to simulate the fusion environment. More recently it was proposed to use a 21 MeV triton beam incident on a water jet target … more
Date: April 1, 1992
Creator: Hassanein, A.; Smith, D. L.; Sze, D. K. & Reed, C. B.
Partner: UNT Libraries Government Documents Department
open access

Cross sections for neutron-producing reactions induced by 6- and 10-MeV neutrons incident on /sup 10/B and /sup 11/B

Description: Using the time-of-flight technique, the /sup 10/B and /sup 11/B neutron emission spectra at incident neutron energies of 6.00 and 10.00 MeV for angles between 20/sup 0/ and 145/sup 0/ have been measured. Double differential cross sections and their integrated values have been extracted and are presented in tables and graphs. The integrated values (corrected for charged particle cross sections, if necessary) are in excellent agreement with measured total cross sections. 15 refs., 39 figs., 14 ta… more
Date: May 1, 1986
Creator: Drosg, M.; Lisowski, P. W.; Drake, D. M.; Hardekopf, R. A. & Muellner, S. M.
Partner: UNT Libraries Government Documents Department
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