The NIJI-III is a compact superconducting electron storage ring for industrial applications. Features of the ring include four strongly curved large-bore superconducting bending magnets utilizing quadrupole coils with a circular cross section surrounded by an air core and a cold bore. The circumference of the ring is 15.54 m with a critical wavelength of 13 Å. Development of the NIJI-III is near completion. This report examines the design and performance of the NIJI-III.
Measurements of the field dependence of susceptibility of a Cu-10 at%Al-l at",Mn spin glass using a double AC technique are reported. The critical exponent for the field dependence of susceptibilit) c'l '?H is estimated to be -0.3 0.1. Some relaxation effects are also observed.
The relation between the injection repetition rate and beam accumulation in an electron storage ring were studied through experiments and beam tracking calculations.
The rate is an important parameter which limits beam current storage. It was believed that the stored beam current could not be increased even if the injection repetition rate was increased over the inverse of the radiation damping time of the betatron oscillations. This is an important consideration for low-energy injection.
The experiment was performed at 90 MeV using an NIJI-I compact electron storage ring, and a beam current accumulation rate was obtained above the limit determined by the radiation damping time. It was found that beam current accumulation depended on the kick angle of the kicker magnet.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.