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Abstract <p>New data for cross sections of partial reactions (<InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(\gamma,1n\)</EquationSource> <!--NuclPhys2560075Varlamov-m3--> </InlineEquation>) and (<InlineEquation ID="IEq4"> <EquationSource Format="TEX">\(\gamma,2n\)</EquationSource> <!--NuclPhys2560075Varlamov-m4--> </InlineEquation>) were obtained using both published data for neutron yield cross section <InlineEquation ID="IEq5"> <EquationSource Format="TEX">\(\sigma(\gamma,xn)=\sigma(\gamma,1n)+2\sigma(\gamma,2n)\)</EquationSource> <!--NuclPhys2560075Varlamov-m5--> </InlineEquation> and total photoneutron reaction cross section <InlineEquation ID="IEq6"> <EquationSource Format="TEX">\(\sigma(\gamma,sn)=\sigma(\gamma,1n)\)</EquationSource> <!--NuclPhys2560075Varlamov-m6--> </InlineEquation> + <InlineEquation ID="IEq7"> <EquationSource Format="TEX">\(\sigma(\gamma,2n)\)</EquationSource> <!--NuclPhys2560075Varlamov-m7--> </InlineEquation> determined in experiment on the bremsstrahlung beam. The investigation of reliability of those cross sections was carried out using the experimental-theoretical method for partial reaction cross section evaluation based on physical criteria. It was found that new evaluated cross sections of the reactions <InlineEquation ID="IEq8"> <EquationSource Format="TEX">\({}^{115}\)</EquationSource> <!--NuclPhys2560075Varlamov-m8--> </InlineEquation>In(<InlineEquation ID="IEq9"> <EquationSource Format="TEX">\(\gamma,1n\)</EquationSource> <!--NuclPhys2560075Varlamov-m9--> </InlineEquation>)<InlineEquation ID="IEq10"> <EquationSource Format="TEX">\({}^{114}\)</EquationSource> <!--NuclPhys2560075Varlamov-m10--> </InlineEquation>In and <InlineEquation ID="IEq11"> <EquationSource Format="TEX">\({}^{115}\)</EquationSource> <!--NuclPhys2560075Varlamov-m11--> </InlineEquation>In(<InlineEquation ID="IEq12"> <EquationSource Format="TEX">\(\gamma,2n\)</EquationSource> <!--NuclPhys2560075Varlamov-m12--> </InlineEquation>)<InlineEquation ID="IEq13"> <EquationSource Format="TEX">\({}^{113}\)</EquationSource> <!--NuclPhys2560075Varlamov-m13--> </InlineEquation>In meeting physical criteria of reliability differ in a certain way from experimental ones. The comparison of new evaluated data with the results of analogous evaluation based on the results for partial reaction cross sections for <InlineEquation ID="IEq14"> <EquationSource Format="TEX">\({}^{115}\)</EquationSource> <!--NuclPhys2560075Varlamov-m14--> </InlineEquation>In obtained in experiment on the beam of quasi-monoenergetic annihilation photons shows that both evaluations are close.</p>

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Photoneutron Reaction Cross Sections for \({}^{{115}}\)In

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • V. V. Varlamov,
  • A. I. Davydov,
  • I. A. Mostakov,
  • V. N. Orlin

摘要

Abstract

New data for cross sections of partial reactions ( \(\gamma,1n\) ) and ( \(\gamma,2n\) ) were obtained using both published data for neutron yield cross section \(\sigma(\gamma,xn)=\sigma(\gamma,1n)+2\sigma(\gamma,2n)\) and total photoneutron reaction cross section \(\sigma(\gamma,sn)=\sigma(\gamma,1n)\) + \(\sigma(\gamma,2n)\) determined in experiment on the bremsstrahlung beam. The investigation of reliability of those cross sections was carried out using the experimental-theoretical method for partial reaction cross section evaluation based on physical criteria. It was found that new evaluated cross sections of the reactions \({}^{115}\) In( \(\gamma,1n\) ) \({}^{114}\) In and \({}^{115}\) In( \(\gamma,2n\) ) \({}^{113}\) In meeting physical criteria of reliability differ in a certain way from experimental ones. The comparison of new evaluated data with the results of analogous evaluation based on the results for partial reaction cross sections for \({}^{115}\) In obtained in experiment on the beam of quasi-monoenergetic annihilation photons shows that both evaluations are close.