Cross section measurements of (n,n') and (n,2n) reactions on zirconium and lead targets at 14.8 MeV.
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概要
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The cross sections for the reactions <SUP>90</SUP>Zr(<I>n, n'</I>)<SUP>90m</SUP>Zr, <SUP>91</SUP>Zr(<I>n, 2n</I>)<SUP>90m</SUP>Zr, <SUP>207</SUP>Pb (<I>n, n'</I>)<SUP>207m</SUP>Pb and <SUP>208</SUP>Pb(<I>n, 2n</I>)<SUP>207m</SUP>Pb for neutron energy of 14.8 MeV have been measured by means of the activation method. The cross sections were determined with reference to the known <SUP>27</SUP>Al(<I>n, α</I>)<SUP>24</SUP>Na reaction cross section. Isotropically enriched isotopes <SUP>90</SUP>Zr, <SUP>91</SUP>Zr, <SUP>207</SUP>Pb and <SUP>208</SUP>Pb were used as target materials. The irradiations and the activity measurements were re-peated 100 times using a fast pneumatic transport system. The following cross sections were obtained :<BR>410 ±40 mb for <SUP>90</SUP>Zr(<I>n, n'</I>)<SUP>90m</SUP>Zr, 775± 65 mb for <SUP>91</SUP>Zr(<I>n</I>, 2<I>n</I>)<SUP>90m</SUP>Zr<BR>160 ± 23 mb for <SUP>207</SUP>Pb(<I>n, n'</I>)<SUP>207m</SUP>Pb, 1, 220 ± 100 mb for <SUP>208</SUP>Pb(<I>n</I>, 2<I>n</I>)<SUP>207m</SUP>Tb.<BR>From the results of the present work, the effective formation cross sections of 90mZr and 207mPb for natural Zr and Pb have also been estimated as 475±40 mb and 900± 80 mb, respectively.
- 一般社団法人 日本原子力学会の論文
著者
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Katoh Toshio
Department Of Nuclear Engineering Faculty Of Engineering Nagoya University
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Amemiya Susumu
Department Of Nuclear Engineering Nagoya University
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BHORASKAR Vasant
Department of Nuclear Engineering, Nagoya University
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KATOH Kikuichi
Department of Nuclear Engineering, Nagoya University
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