On the track length of uranium ions of various energies in olivine crystals

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Abstract

The calibration of olivine crystals with uranium ions of low energy (8.7–16.7) MeV/amu from the UNILAC (GSI, Darmstadt) and of high energy (<960 MeV/amu) from the BEVALAC (Lawrence Berkeley Laboratory, Berkeley) is describred. Etchable tracks with lengths up to 1550 μm were observed in the high-energy uranium irradiation. The crystals were not annealed before etching. The connection of this work with the search for SHE (Super Heavy Elements) in cosmic ray exposed olivine crystals is discussed.

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∗

Permanent address: Department of Physics, Gomal University, D.I. Khan, Pakistan.

†

Visiting scientist from Institute of Atomic Energy, Academia Sinica, Bejing, China.

§

Visiting scientist from Joint Institute of Nuclear Research, Dubna, U.S.S.R.

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