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Abstract:
A new ISOLAN facility has been constructed for on-line use with the heavy ion accelerator HIRFL in Lanzhou.The beam optical principle of an earlier ISOLDE type separator is modified by including a quadrupole doublet lens in front of the magnet.The mass spectra of Ar and Xe isotopes were measured with a scanner inside the collection chamber for an offline test.The resolution power is equal to 700—1200 by only using a single einzel lens.
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