Kodo Kawase

Half-life of {sup 184}Re populated by the ({gamma},n) reaction from laser Compton scattering {gamma} rays at the electron storage ring NewSUBARU

We report a half-life of the ground state of {sup 184}Re populated by the {sup 185}Re({gamma},n){sup 184}Re reaction from laser Compton scattering {gamma} rays generated through relativistic engineering. The {gamma} rays are provided at the electron storage ring NewSUBARU. The previous experiment using deuteron-induced reactions has yielded a recommended half-life of the 3{sup -} ground state of {sup 184}Re of 38.0{+-}0.5 d, including a possible contribution from the 8{sup +} isomer (T{sub 1/2}=169{+-}8 d) of {sup 184}Re since the presence of the isomer was not known at that time. In contrast, the ({gamma},n) reaction has an advantage to selectively populate the ground state because this reaction does not bring large angular momentum. The measured half-life of 35.4{+-}0.7 d is shorter than the previous half-life by about 7%. This difference is crucial for applications using the activation method.

Half-life of the {sup 164}Ho by the ({gamma},n) reaction from laser Compton scattering {gamma} rays at the electron storage ring NewSUBARU

The half-life of an isomer in

The Giant Monopole Resonance in the Sn Isotopes: Why is Tin so "Fluffy"?

^{164}\mathrm{Ho}

Half-life of 184Re populated by the (γ, n) reaction from laser compton scattering y rays at the electron storage ring ΝewSUBARU

was measured by using photodisintegration reactions. The photons were generated by Compton scattering of laser photons and relativistic electrons at the electron storage ring NewSUBARU in the super photon ring 8-GeV (SPring-8) facility. The half-life is

Study of the cluster state at =10.3 MeV in C

36.4\ifmmode\pm\else\textpm\fi{}0.3

Isotopic Dependence of Giant Monopole Resonance (GMR) in the ^106-116Cd isotopes and the asymmetry term in nuclear incompressibility

min. This value is about 3% shorter than the previous value

Analogs of the giant dipole and spin-dipole resonances in He and in clusters of {sup 6,7}Li studied by the He,{sup 6,7}Li(Li,Be) reactions

37.{5}_{\ensuremath{-}0.5}^{+1.5}

Half-life of the ¹Ho by the (,n) reaction from laser Compton scattering rays at the electron storage ring NewSUBARU

min reported in 1966.