Author/Authors :
Ninov، نويسنده , , V. and Armbruster، نويسنده , , P. and Heكberger، نويسنده , , F.P. and Hofmann، نويسنده , , S. and Münzenberg، نويسنده , , G. and Fujita، نويسنده , , Y. and Leino، نويسنده , , M. and Lüttgen، نويسنده , , A.، نويسنده ,
Abstract :
The performance of the gas-filled magnetic separator HECK at the UNILAC at GSI Darmstadt is described. The system consists of a 30°-dipole magnet and a quadrupole doublet of wide aperture. The separator is operated with helium at pressures between 0.1–1 hPa. It is used to investigate heavy ion induced fusion products in-flight. The recoils emerging from a thin target are separated with high efficiency of 10–50%. The suppression factor of primary beam particles and transfer products is 1015 and 103, respectively.
s application of a gas-filled separator to synthesize transuranium elements using 238U-targets, isotopes of the elements fermium and nobelium were identified in irradiations with 16O- and 20Ne-beams.
