Title of article :
A linear radiofrequency ion trap for accumulation, bunching, and emittance improvement of radioactive ion beams
Author/Authors :
Herfurth، نويسنده , , F and Dilling، نويسنده , , J and Kellerbauer، نويسنده , , A and Bollen، نويسنده , , G and Henry، نويسنده , , S and Kluge، نويسنده , , H.-J and Lamour، نويسنده , , E and Lunney، نويسنده , , D and Moore، نويسنده , , R.B and Scheidenberger، نويسنده , , C and Schwarz، نويسنده , , S and Sikler، نويسنده , , J. Szerypo، نويسنده , , J، نويسنده ,
Abstract :
An ion beam cooler and buncher has been developed for the manipulation of radioactive ion beams. The gas-filled linear radiofrequency ion trap system is installed at the Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN. Its purpose is to accumulate the 60-keV continuous ISOLDE ion beam with high efficiency and to convert it into low-energy low-emittance ion pulses. The efficiency was found to exceed 10% in agreement with simulations. A more than 10-fold reduction of the ISOLDE beam emittance can be achieved. The system has been used successfully for first on-line experiments. Its principle, setup and performance will be discussed.
Keywords :
On-line mass spectrometry , Ion guide , Ion trap , Ion cooling , Radioactive ion beams , Ion buncher
