In-Beam γ-Ray Study of ^<217>Ra

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概要

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• Excited states in "'Ra were studied for the first time by the in-beam spectro-scopic techniques. Reactions used were "'Pb("C, 3n)"'Ra and "'Pb("C,4n)"'Ra at 70 and 80 MeV, respectively. The y-rays in "'Ra were identifiedbased on the y-ray excitation functions and the ay-coincidence experiment. Thelevel structure established in this study consists of three streched [2 cascades.Those states are interpreted to arise from the coupling of a valence neutron to thequadrupole- and octupole-phonon. An isomeric state with a half-life of 4.1 :0.3 nswas found at 2388 keV with a spin-parity (31/2 ).NUCLEAR REACTIONS "'Pb("C,3n), ("C,4n), E=65-95 MeV;E measured E, I, 7y-coin, y(t), I,(0), ay-coin. "'Ra deduced level se-quences, J, n, T.7..

• 社団法人日本物理学会の論文
• 1984-09-15

著者

• GONO Yasuyuki

  RIKEN Nishina Center, RIKEN

• SHIBATA MICHIHIRO

  Radioisotope Research Center, Nagoya University

• Gono Yasuyuki

  Riken (the Institute Of Physical And Chemical Research)

• SUGAWARA Masahiko

  RIKEN (The Institute of Physical and Chemical Research)

• ITOH Yoshinori

  RIKEN (The Institute of Physical and Chemical Research)

• Sugawara Masahiko

  Riken (the Institute Of Physical And Chemical Research):chiba Institute Of Technology

• Itoh Yoshinori

  Riken (the Institute Of Physical And Chemical Research):hitachi Service Engineering Co.ltd

関連論文

• A New High-Spin Isomer in ^Sm
• Identification of New Isotopes ^Pd and ^Pd Produced by In-Flight Fission of 345 MeV/nucleon ^U : First Results from the RIKEN RI Beam Factory(Nuclear physics)
• Isomer Decay of ^Ce Studied by Gas Filled Recoil Ion Separator
• Coulomb Excitation of^Gd
• Precise Intensity Measurements in the ^N(n, γ)^N Reaction as a γ-Ray Intensity Standard up to 11MeV
• Design of a Compact 4π Ge Spectrometer for the Measurement of Neutron Capture Cross Sections of Minor Actinides
• β-decay half-lives of four new neutron-rich isotopes ^Eu and levels in ^Gd(International Workshop on Nuclear Structure-New Pictures in the Extended Isospin Space(NS07)-)
• In-Beam γ-Ray Study of ^Ra
• Q_β Determination of Neutron-Rich Isotope ^La with a Total Absorption Detector
• Beta Decay of ^Pr into Levels in ^Nd
• Low-Lying Levels in ^Nd in the Decay of ^Pr
• Decay of ^152Nd
• Q_ Measurement of^La
• Out-of-Plane Measurement of the ^Cu (e,e'p_0) Reaction in the Giant Resonance Region
• High Spin States in ^ Rb
• Identification of 45 New Neutron-Rich Isotopes Produced by In-Flight Fission of a 238U Beam at 345 MeV/nucleon

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