Decay of I^<124>
スポンサーリンク
概要
- 論文の詳細を見る
The gamma and beta rays following the decay of I^<124> which was produced by Sb (α, η) reaction have been studied with scintillation spectrometers both single and in coincidence, and with a beta-ray spectrometer. Three gamma rays at 2.74-MeV, 2.29-MeV and 1.50-MeV and probably 0.9-MeV which were not found in decay of Sb^<124> were observed. The beta-gamma coincidence experiments revealed that the first positron group decays to the ground level of Te^<124> so that the energy difference between O^<124> and Te^<124> becomes 3.22-Mev, being consistent with beta decay energy systematics. In addition this beta component was found to have an unique 1st forbidden type spectrum, showing the spin and parity of the ground state of I^<124> is 2-. From these results we led to conclude the presence of two new levels at 2.88-MeV and 2.74-MeV which the spin value is probably 1 and the parity is negative. A doublet level at the second excited level previously reported was not confirmed in the present experiment. However a definite evidence of cross-over transition from the second level to the ground level was obtained which may indicate a presence of a 2+ level at the second excited level. The tentative decay scheme is proposed.
- 社団法人日本物理学会の論文
- 1959-08-05
著者
-
Sakai Mitsuo
Institute For Nuclear Study University Of Tokyo
-
Yamazaki Toshimitsu
Institute For Nuclear Study University Of Tokyo
-
Ikegami Hidetsugu
Institute for Nuclear Study, University of Tokyo
-
Sugiyama Kazusuke
Department T Of Physics Tohoku University
-
Sugiyama Kazusuke
Department Of Nuclear Engineering Faculty Of Engineering Tohoku University
-
Ikegami Hidetsugu
Institute For Nuclear Study University Of Tokyo:department Of Physics Brookhaven National Laboratory
-
Ikegami Hidetsugu
Institute For Nuclear Study University Of Tokyo
-
Sakai Mitsuo
Institute For Nuclear Study Tokyo University
-
Ikegami Hidetsugu
Institute for Nuclear Study The University of Tokyo
関連論文
- First Observation of an Antiferromagnetic Phase in the Y_1Ba_2Cu_3O_x System
- Decay of La^
- Conversion Electrons from (p,2n) and (α,3n) Reactions on Vibrational Nuclei
- Measurement of Gamma-Ray Multiplicity Emitted in the Alpha-Induced Fission of ^Th
- Low-Lying States of ^Os
- Electromagnetic Property of Low-Lying Levels in ^Pm
- Low-Lying States of ^Zn Studied in the ^Zn(p,t)^Zn and ^Cu(p,2nγ)^Zn Reactions
- Decay of 14 min ^In
- Level Structure of Nd^
- Low-lying Excited States in Ba^
- A Study of the Decay Scheme of Eu^
- Formation and Decay of Σ Hypernuclei in (Stopped K^-, π^±) Reactions
- Study of Λ-Hypernuclei with Stopped K^- Reaction
- New Radioactivity 43-min Yttrium-84
- Decay of Potassium 44
- Electric-Field Gradient at the Osmium Nuclei in Metallic Environment
- The Decay of 1.25-Min Rb^
- \"New Level Scheme of Pt^\"
- Short-lived ActiVity Of Ag^
- On the First and the Second Excited States in Ge^
- Decay of I^
- Angular Correlation of Gamma Rays from Xe^ and Te^
- Sector Type Double Focusing Beta Ray Spectrometer : Part II. Twin Setting Measurement of the Weak Higher Component of Cs^
- Application of In-Beam Perturbed Angular Distribution to the Study of High-T_c Oxides
- 28p-E-2 反陽子の液体ヘリウム中での長寿命トラッピング現象と準安定エキゾティックヘリウム原子
- Decay of ^In
- Mixing Ratio of the M1 and E2 Radiations in the 2^+→2_1^+ Transitions in Hg^
- Decay of Eu^
- Sector Type Double Focusing Beta Ray Spectrometer : Part I General properties
- The Second Excited State of Sn^
- Buffer Energy Nuclear Fusion : Nuclear Science, Plasmas, and Electric Discharges
- Note on the Third Excited Level of ^Hg
- Low-Lying Excited Levels in ^Hg
- Note on the Nuclear Level of Spin 2^+
- Spin Order in the Doublet at the Second Excited level in Even-even Medium Nuclei
- Preparation of Radioactive Antimony-120 of a High Specific Activity by the Irradiation of Tin with Protons
- Secondary Ion Emission from Metal Surface in Collision of 30keV Ar+ Ions
- Gamma-ray production cross sections for aluminum and copper at 5.3-MeV neutron energy.