A transient magnetic field-ion implanted perturbed angular distribution spectrometer has beenset up at CIAE HI-13 tandem accelerator.This spectrometer is used to measure y-factors of high spinstates with lifetime of p...A transient magnetic field-ion implanted perturbed angular distribution spectrometer has beenset up at CIAE HI-13 tandem accelerator.This spectrometer is used to measure y-factors of high spinstates with lifetime of pico-or subpico-seconds.The 9-factors of the high spin states in <sup>83</sup>y,<sup>84</sup>Zr and<sup>87</sup>Nbhave been successfully determined with it.展开更多
The nuclear dealignment is studied during the slowing down process and after thermolization in different gases by the time differential perturbed angular distribution method. A large fraction of the initial nuclear al...The nuclear dealignment is studied during the slowing down process and after thermolization in different gases by the time differential perturbed angular distribution method. A large fraction of the initial nuclear alignment following the nuclear reaction can be preserved in gases with large moments of inertia, but only a small fraction in monoatomic gases such as the noble gases. The plunger experiment shows that the nuclear dealignment occurs during the slowing down process and not after thermolization.展开更多
基金The project supported by the National Natural Scienoe Foundation of China and China Nuclear Industry Foundation
文摘A transient magnetic field-ion implanted perturbed angular distribution spectrometer has beenset up at CIAE HI-13 tandem accelerator.This spectrometer is used to measure y-factors of high spinstates with lifetime of pico-or subpico-seconds.The 9-factors of the high spin states in <sup>83</sup>y,<sup>84</sup>Zr and<sup>87</sup>Nbhave been successfully determined with it.
文摘The nuclear dealignment is studied during the slowing down process and after thermolization in different gases by the time differential perturbed angular distribution method. A large fraction of the initial nuclear alignment following the nuclear reaction can be preserved in gases with large moments of inertia, but only a small fraction in monoatomic gases such as the noble gases. The plunger experiment shows that the nuclear dealignment occurs during the slowing down process and not after thermolization.
