Development of a new device control system for β-NMR experiments

[摘要] We have developed a device-control system of a beta-NMR apparatus for the measurement of nuclear electromagnetic nuclear moments of rare isotopes. In this development, we installed fast relay switches into a high-power tank circuit in order to apply a strong oscillating magnetic field and to sweep its frequency as wide as possible. The system enables to conduct NMR frequency scans with wide frequency windows by dynamically changing the tank-circuit resonant frequency. Furthermore, logical electric-circuit modules of the data taking system were replaced by a programmable logic module. The system performance was evaluated in the beta-NMR experiments conducted at the RIBF facility using F-20 and Cl-33 radioactive isotopes. (C) 2013 Elsevier B.V. All rights reserved.

[发布日期] 2013-12-15

[效力级别]  Proceedings Paper

[关键词] beta-NMR;Electromagnetic moments;Adiabatic fast passage method;High-power radio-frequency oscillating field