Cross-sections for formation of 178m2Hf and 179m2Hf through reactions on natural hafnium at neutron energy 14.8 ± 0.2 MeV

Luo, Junhua; Tuo, Fei; Kong, Xiangzhong

doi:10.1007/s10967-010-0963-0

Cited by 9 publications

(2 citation statements)

References 26 publications

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“…The radioactive products were identified to measure the cross sections of nuclear reactions. The detailed procedure is available from published works [81][82][83][84][85]. Only a few salient characteristics associated with our measurements are presented in this report.…”

Section: Methodsmentioning

confidence: 99%

Cross-sections for , and reactions on molybdenum isotopes in the neutron energy range of 13 to 15 MeV *

Luo¹,

Li²

2020

Chinese Phys. C

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Given the insufficient cross-sectional data regarding the 14-MeV-neutron experiment of molybdenum, the vital fusion reactor structural material, and the significant heterogeneities among the reported values, this study examined the (n,2n), (n,α), (n,p), (n,d), and (n,t) reaction cross sections in molybdenum isotopes based on the neutrons produced via a T(d,n)4He reaction carried out in the Pd-300 Neutron Generator at the China Academy of Engineering Physics (CAEP). A high-resolution gamma-ray spectrometer, which was equipped with a coaxial high-purity germanium detector, was used to measure the product nuclear gamma activities. In addition, 27Al(n,α)24Na and 93Nb(n,2n)92mNb reactions were utilized as the neutron fluence standards. The experimental 92Mo(n,2n)91Mo, 94Mo(n,2n)93mMo, 100Mo(n,2n)99Mo, 98Mo(n,α)95Zr, 100Mo(n,α)97Zr, 92Mo(n,p)92mNb, 96Mo(n,p)96Nb, 97Mo(n,p)97Nb, 98Mo(n,p)98mNb, 92Mo(n,d)91mNb, and 92Mo(n,t)90Nb reaction cross sections were acquired within the 13–15 MeV neutron energy range. Thereafter, we compared and analyzed these obtained cross sections based on the existing IAEA-EXFOR database-derived experimental data, together with evaluation results corresponding to ENDF/B-VIII.0, JEFF-3.3, BROND-3.1, and CENDL-3.1 and the theoretical outcomes acquired through TALYS-1.95 and EMPIRE-3.2.3 (nuclear-reaction modeling tools).

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Section: Methodsmentioning

confidence: 99%

Cross-sections for , and reactions on molybdenum isotopes in the neutron energy range of 13 to 15 MeV *

Luo¹,

Li²

2020

Chinese Phys. C

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“…where μ denotes the coefficient of linear attenuation at photon energy E (see Table 2), L is the distance from the specimen to the HPGe surface, while Ω 1 , Ω 2 , Ω 3 represent the solid angle of the front monitor disk, sample and back monitor disks relative to the center of the target, respectively. The coefficient of mass attenuation (μ/ρ) was obtained using the γ-energy taken from a previous study [34]. The linear attenuation coefficient of natural xenon gas was determined as , where ρ (in g/cm 3 ) represents the Xe gas density in stainless-steel spheres.…”

Section: A Experimentally Determined Cross-sectionsmentioning

confidence: 99%

Cross-section measurements of (n, 2n) and (n, p) reactions on ^{124,126,128,130,131,132}Xe in the 14 MeV region and theoretical calculations of their excitation functions *

Luo

Liang

et al. 2022

Chinese Phys. C

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The reaction cross-sections of 124Xe(n, 2n)123Xe, 126Xe(n, 2n)125Xe, 128Xe(n, 2n)127Xe, 130Xe(n, 2n)129mXe, 132Xe(n, 2n)131mXe, 130Xe(n, p)130I, 131Xe(n, p)131I, and 132Xe(n, p)132I were measured at the 13.5, 13.8, 14.1, 14.4, and 14.8 MeV neutron energies. The monoenergetic neutrons were generated through the 3H(d,n)4He reaction at the China Academy of Engineering Physics using the K-400 Neutron Generator with a solid 3H-Ti target. A high-purity germanium detector was used to measure the activities of the product. The reactions 93Nb(n, 2n)92mNb and 27Al(n, α)24Na served for neutron flux calibration. The cross sections of the (n,2n) and (n,p) reactions of the xenon isotopes were acquired within the 13–15 MeV neutron energy range. These cross-sections were then compared with the IAEA-exchange format (EXFOR) database-derived experimental data together with the evaluation results of the CENDL-3, ENDF/B-VIII.0, JENDL-4.0, RUSFOND, and JEFF-3.3 data libraries as well as the theoretical excitation function obtained using the TALYS-1.95 code. The cross-sections of the reactions (except for the 124Xe(n, 2n)123Xe and 132Xe(n, p)132I) at 13.5, 13.8, and 14.1 MeV are reported for the first time in this work. The present results are helpful to provide better cross-section constraints for these reactions in the 13–15 MeV region, thus improving the quality of the corresponding database. Meanwhile, these data can also be used for the verification of relevant nuclear reaction model parameters.

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Cross sections for fast-neutron interaction with erbium isotopes

Luo

Liu

et al. 2011

J Radioanal Nucl Chem

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Cross-sections for formation of 178m2Hf and 179m2Hf through reactions on natural hafnium at neutron energy 14.8 ± 0.2 MeV

Cited by 9 publications

References 26 publications

Cross-sections for , and reactions on molybdenum isotopes in the neutron energy range of 13 to 15 MeV *

Cross-sections for , and reactions on molybdenum isotopes in the neutron energy range of 13 to 15 MeV *

Cross-section measurements of (n, 2n) and (n, p) reactions on ^{124,126,128,130,131,132}Xe in the 14 MeV region and theoretical calculations of their excitation functions *

Cross sections for fast-neutron interaction with erbium isotopes

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Cross-sections for formation of 178m2Hf and 179m2Hf through reactions on natural hafnium at neutron energy 14.8 ± 0.2 MeV

Cited by 9 publications

References 26 publications

Cross-sections for , and reactions on molybdenum isotopes in the neutron energy range of 13 to 15 MeV *

Cross-sections for , and reactions on molybdenum isotopes in the neutron energy range of 13 to 15 MeV *

Cross-section measurements of (n, 2n) and (n, p) reactions on 124,126,128,130,131,132Xe in the 14 MeV region and theoretical calculations of their excitation functions *

Cross sections for fast-neutron interaction with erbium isotopes

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Product

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Cross-section measurements of (n, 2n) and (n, p) reactions on ^{124,126,128,130,131,132}Xe in the 14 MeV region and theoretical calculations of their excitation functions *