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Title: Recent Results of Experiments with Radioactive 21Na and 7Be ion beams

Abstract

We report here on experiments with radioactive 21Na and 7Be beams performed by Colorado School of Mines students at the ISAC facility of TRIUMF and the Holifield Radioactive Ion Beam Facility (HRIBF) of ORNL. At TRIUMF, the DRAGON recoil separator and its segmented BGO array were used to investigate higher energy resonances in the reaction H(21Na,gamma)22Mg. Using the HRIBF we performed an experiment with a 7Be ion beam to measure scattering off Hydrogen and Carbon. Both elastic 7Be + p scattering and for the first time resonant inelastic scattering 7Be(p,p0)7Be* were observed.

Authors:
 [1];  [2];  [2];  [1];  [1];  [2];  [2];  [2];  [2];  [3];  [3];  [4];  [5];  [6]
  1. Colorado School of Mines, Golden
  2. ORNL
  3. University of North Carolina, Chapel Hill
  4. University of Tennessee
  5. Rutgers University
  6. Tennessee Technological University
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Holifield Radioactive Ion Beam Facility
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
931882
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: Nineteenth International Conference on The Application of Accelerators in Research and Industry, Fort Worth, TX, USA, 20060820, 20060820
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 43 PARTICLE ACCELERATORS; ACCELERATORS; CARBON; HYDROGEN; INELASTIC SCATTERING; ION BEAMS; ORNL; RADIOACTIVE ION BEAMS; SCATTERING; SODIUM 21; BERYLLIUM 7

Citation Formats

Greife, U., Livesay, Jake, Jewett, Cybele, Chipps, K., Sarazin, F., Bardayan, Daniel W, Blackmon, Jeff C, Nesaraja, Caroline D, Smith, Michael Scott, Champagne, A. E., Fitzgerald, R. P., Jones, K. L., Thomas, J. S., and Kozub, R. L.. Recent Results of Experiments with Radioactive 21Na and 7Be ion beams. United States: N. p., 2007. Web.
Greife, U., Livesay, Jake, Jewett, Cybele, Chipps, K., Sarazin, F., Bardayan, Daniel W, Blackmon, Jeff C, Nesaraja, Caroline D, Smith, Michael Scott, Champagne, A. E., Fitzgerald, R. P., Jones, K. L., Thomas, J. S., & Kozub, R. L.. Recent Results of Experiments with Radioactive 21Na and 7Be ion beams. United States.
Greife, U., Livesay, Jake, Jewett, Cybele, Chipps, K., Sarazin, F., Bardayan, Daniel W, Blackmon, Jeff C, Nesaraja, Caroline D, Smith, Michael Scott, Champagne, A. E., Fitzgerald, R. P., Jones, K. L., Thomas, J. S., and Kozub, R. L.. Thu . "Recent Results of Experiments with Radioactive 21Na and 7Be ion beams". United States. doi:.
@article{osti_931882,
title = {Recent Results of Experiments with Radioactive 21Na and 7Be ion beams},
author = {Greife, U. and Livesay, Jake and Jewett, Cybele and Chipps, K. and Sarazin, F. and Bardayan, Daniel W and Blackmon, Jeff C and Nesaraja, Caroline D and Smith, Michael Scott and Champagne, A. E. and Fitzgerald, R. P. and Jones, K. L. and Thomas, J. S. and Kozub, R. L.},
abstractNote = {We report here on experiments with radioactive 21Na and 7Be beams performed by Colorado School of Mines students at the ISAC facility of TRIUMF and the Holifield Radioactive Ion Beam Facility (HRIBF) of ORNL. At TRIUMF, the DRAGON recoil separator and its segmented BGO array were used to investigate higher energy resonances in the reaction H(21Na,gamma)22Mg. Using the HRIBF we performed an experiment with a 7Be ion beam to measure scattering off Hydrogen and Carbon. Both elastic 7Be + p scattering and for the first time resonant inelastic scattering 7Be(p,p0)7Be* were observed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2007},
month = {Thu Mar 01 00:00:00 EST 2007}
}

Conference:
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  • The TRIUMF-ISAC Gamma-Ray Escape Suppressed Spectrometer (TIGRESS) is a state-of-the-art {gamma}-ray spectrometer being constructed at the ISAC-II radioactive ion beam facility at TRIUMF. TIGRESS will be comprised of twelve 32-fold segmented high-purity germanium (HPGe) clover-type {gamma}-ray detectors, with BGO/CsI(Tl) Compton-suppression shields, and is currently operational at ISAC-II in an early-implementation configuration of six detectors. Results have been obtained for the first experiments performed using TIGRESS, which examined the A = 20, 21, and 29 isotopes of Na by Coulomb excitation.
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  • The reaccelerated fission-fragment beams at HRIBF provide a unique opportunity for studying the mechanisms of fusion involving nuclei with large neutron excess. The fusion excitation functions for neutron-rich ra- dioactive 132Sn incident on 40Ca and 58Ni targets have been measured to explore the role of transfer couplings in sub-barrier fusion enhancement. Evaporation residue cross sections for 124,126,127,128Sn+64Ni were measured to study the dependence of fusion probability on neutron excess.
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