FIRST ISOCHRONOUS MASS MEASUREMENTS AT CSRe
- 1 February 2009
- journal article
- Published by World Scientific Pub Co Pte Ltd in International Journal of Modern Physics E
- Vol. 18 (2), 352-358
- https://doi.org/10.1142/s0218301309012380
Abstract
With the commissioning of the Cooler Storage Ring at the Heavy Ion Research Facility in Lanzhou (HIRFL-CSR), a pilot experiment operating the CSRe in isochronous mode to test the power of HIRFL-CSR for measuring the mass of the short-lived nucleus was performed in December of 2007. The transition point γt of CSRe in isochronous mode is 1.395 which corresponds to the energy about 368 MeV/u for the ions with atomic number-to-charge ratio A/q = 2. The fragments with A/q = 2 of 36 Ar were injected into CSRe and their revolution frequencies were measured with a fast time pick-up detector with a thin foil in the circulating path of the ions. A mass resolution of better than 105 for m/Δm was achieved.Keywords
This publication has 6 references indexed in Scilit:
- High-accuracy mass spectrometry with stored ionsPhysics Reports, 2006
- The Ame2003 atomic mass evaluationNuclear Physics A, 2003
- Recent trends in the determination of nuclear massesReviews of Modern Physics, 2003
- The heavy ion cooler-storage-ring project (HIRFL-CSR) at LanzhouNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2002
- First isochronous mass spectrometry at the experimental storage ring ESRNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2000
- Schottky Mass Measurements of Cooled Proton-Rich Nuclei at the GSI Experimental Storage RingPhysical Review Letters, 1997