期刊
PHYSICAL REVIEW C
卷 88, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.88.011306
关键词
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资金
- RIBF [NP0702-RRC01-25]
- Japan Society for the Promotion of Science KAKENHI [2200823, 24224008, 24740142]
- RIBF accelerator crew
- RIKEN Accelerator Research Facility
- Grants-in-Aid for Scientific Research [24740142] Funding Source: KAKEN
A multireflection time-of-flight mass spectrograph, competitive with Penning trap mass spectrometers, has been built at RIKEN. We have performed a first online mass measurement, using Li-8(+) (T-1/2 = 838 ms). A new analysis method has been realized, with which, using only C-12(+) references, the mass excess of Li-8 was accurately determined to be 20 947.6(15)(34) keV (delta m/m = 6.6 x 10(-7)). The speed, precision, and accuracy of this first online measurement exemplifies the potential for using this new type of mass spectrograph for precision measurements of short-lived nuclei.
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