Measurement of Thermal Neutron Cross Section and Resonance Integral of the Reaction 99Tc(n,.GAMMA.)100Tc.

• HARADA Hideo

  Nuclear Fuel Technology Development Division, Power Reactor and Nuclear Fuel Development Corp.

• NAKAMURA Shoji

  Nuclear Fuel Technology Development Division, Power Reactor and Nuclear Fuel Development Corp.

• KATOH Toshio

  Department of Nuclear Engineering, Nagoya University

• OGATA Yoshimune

  Radioisotope Research Center, Nagoya University

抄録

To obtain fundamental data for research on the transmutation of nuclear waste, the thermal neutron cross section and the resonance integral of the reaction ⁹⁹Tc(n, γ)¹⁰⁰Tc have been measured using an activation method.<BR>Four ammonium pertechnetate targets containing 371375 kBq of ⁹⁹Tc were irradiated for 2min with reactor neutrons. Activation detectors of Co/Al and Au/Al alloy wires were irradiated for 10min to monitor the neutron flux and the fraction of the epithermal part (Westcott' sepithermal index). The Tc samples and flux monitors were irradiated with and without a Cd capsule. The γ-ray spectra from the irradiated samples were measured using a high purity Ge detector.<BR>The thermal neutron cross section (2, 200m/s neutron cross section) and the resonance integral of the ⁹⁹Tc(n, γ)¹⁰⁰Tc reaction were found to be 22.9±1.3b and 398±38b, respectively.<BR>The thermal neutron cross section obtained agrees with the previously reported values (20±2b by Lucas, 24.8 by Pattenden, 24±4 by Ovechkin) within the limits of error. On the other hand, the resonance integral is twice the value reported by Lucas (186±16b).

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　Ｎｕｃｌｅａｒ　Ｓｃｉｅｎｃｅ　ａｎｄ　Ｔｅｃｈｎｏｌｏｇｙ（日本原子力学会英文論文誌）

  Ｊｏｕｒｎａｌ　ｏｆ　Ｎｕｃｌｅａｒ　Ｓｃｉｅｎｃｅ　ａｎｄ　Ｔｅｃｈｎｏｌｏｇｙ（日本原子力学会英文論文誌） 32 (5), 395-403, 1995

  一般社団法人 日本原子力学会

キーワード

• nuclear transmutation
• incineration
• radioactive waste
• neutron capture
• technetium 99
• technetium 100
• resonance integrals
• thermal neutrons
• cross sections
• half-life
• gamma spectra
• activation method
• fission products
• experimental data

詳細情報

• CRID: 1390282679071009408
• NII論文ID: 10002072469
• NII書誌ID: AA00703720
• DOI: 10.3327/jnst.32.395
• COI: 1:CAS:528:DyaK2MXms1aitbw%3D
• ISSN: 18811248
• ISSN: 00223131
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可