Actions for Isotopic germanium targets for high beam current applications at GAMMASPHERE [electronic resource].

Email RIS file
Bookmark
Report an Issue

Isotopic germanium targets for high beam current applications at GAMMASPHERE [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2000.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
5 pages : digital, PDF file
Additional Creators
Argonne National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
The creation of a specific heavy ion residue via heavy ion fusion can usually be achieved through a number of beam and target combinations. Sometimes it is necessary to choose combinations with rare beams and/or difficult targets in order to achieve the physics goals of an experiment. A case in point was a recent experiment to produce ¹⁵²Dy at very high spins and low excitation energy with detection of the residue in a recoil mass analyzer. Both to create the nucleus cold and with a small recoil-cone so that the efficiency of the mass analyzer would be high, it was necessary to use the ⁸°Se on ⁷⁶Ge reaction rather than the standard ⁴⁸Ca on ¹°⁸Pd reaction. Because the recoil velocity of the ¹⁵²Dy residues was very high using this symmetric reaction (5% v/c), it was furthermore necessary to use a stack of two thin targets to reduce the Doppler broadening. Germanium targets are fragile and do not withstand high beam currents, therefore the ⁷⁶Ge target stacks were mounted on a rotating target wheel. A description of the ⁷⁶Ge target stack preparation will be presented and the target performance described.
Report Numbers
E 1.99:anl/phy/cp-103548
anl/phy/cp-103548
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
11/29/2000.
"anl/phy/cp-103548"
16th International Conference on the Application of Accelerators in Research and Industry CAARI 2000, Denton, TX (US), 11/01/2000--11/04/2000.
Greene, J. P.; Lauritsen, T.
Funding Information
W-31-109-ENG-38
View MARC record | catkey: 14688652