Neutron capture reaction cross section measurement for iodine nucleus with detailed uncertainty quantification

Gandhi, A.; Sharma, Aman; Pachuau, Rebecca; Singh, Neelima; Patil, P. N.; Mehta, Mayur; Danu, L. S.; Suryanarayana, S. V.; Nayak, B. K.; Lalremruata, B.; Kumar, Ajay

doi:10.1140/epjp/s13360-021-01824-y

Cited by 17 publications

(4 citation statements)

References 40 publications

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“…The correction for γ-ray true coincidence summing and sample geometry effects were considered in this study. Detailed information with respect to the efficiency calibration of the HPGe detector is provided in our previous articles [12,13]. The nuclear cross sections for the 58 Ni(n, p) 58 Co reaction were estimated using the wellknown activation formula as follows:…”

Section: Methodsmentioning

confidence: 99%

Comprehensive analysis of uncertainty quantification for the ⁵⁸Ni(n, p)⁵⁸Co reaction cross section*

Choudhary,

Sharma,

Singh

et al. 2024

Chinese Phys. C

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In this study, we have measured the excitation function of the nuclear reaction 58Ni(n,p)58Co. The excitation function was measured using neutron activation techniques and γ-ray spectroscopy and compared with available cross section data available in the EXFOR. We have also calculated the covariance matrix of the measured cross section for the above mentioned nuclear reaction. The uncertainties of the theoretical calculation for 58Ni(n,p)58Co reaction cross section were calculated by using Monte Carlo Method. In this study, we have used the uncertainties in the optical model and level density parameters to calculate the uncertainties in the theoretical cross sections. The theoretical calculations were performed by using TALYS-1.96. The present study aims to analyze the effect of uncertainties of the nuclear model input as well as different experimental variables used to obtain the values of reaction cross section.

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Section: Methodsmentioning

confidence: 99%

Comprehensive analysis of uncertainty quantification for the ⁵⁸Ni(n, p)⁵⁸Co reaction cross section*

Choudhary,

Sharma,

Singh

et al. 2024

Chinese Phys. C

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“…The main sources of uncertainties during the determination of cross-sections included the following items (where the subscripts Nb/Al and x show the monitored and measured reaction-related terms, respectively): C x,Nb/Al is the γ-ray counting statistics, M x,Nb/Al is the target mass, η x is the target isotopic abundance, I x,Nb/Al refers to the γ-ray intensity, σ Nb/Al is the standard cross-section, ε x,Nb/Al is the efficiency (the calculated covariance and correlation matrix for the HPGe detector efficiency is given in Table 5), and S x,Nb/Al , D x,Nb/Al are the timing factors. The uncertainty within the estimated reaction cross-section was calculated by employing the fractional uncertainty (%) from all the variables listed above [44][45][46][47]. Tables 6-9 were utilized for the propagation of the covariance matrix among the various neutron energies and to illustrate the fractional uncertainties in the different factors responsible for the measured reaction crosssection.…”

Section: B Covariance Analysismentioning

confidence: 99%

New cross-section measurements for the (n, 2n), (n, p), and (n, α) reactions on bromine in the 14 MeV region with detailed uncertainty quantification*

He¹,

Luo²,

Li³

2023

Chinese Phys. C

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Measurement of the cross-sections of 79Br(n,2n)78Br, 81Br(n,p)81mSe, 81Br(n,α)78As, and 79Br(n,α)76As reactions was carried out at specific neutron energies precisely 13.5±0.2, 14.1±0.2, 14.4±0.2, and 14.8±0.2 MeV relative to the standard 93Nb(n,2n)92mNb and 27Al(n,α)24Na reference reactions using offline γ-ray spectrometry and neutron activation. The monoenergetic neutrons were generated at the China Academy of Engineering Physics, via a 3H(d,n)4He reaction using a K-400 Neutron Generator equipped with a solid 3H-Ti based target. The activity of reaction produce was obtained utilizing a high-purity germanium detector. The cross-sections of the (n,2n), (n,p), and (n,α) reactions on the bromine isotopes were conducted in the 13–15 MeV neutron energy range. The covariance analysis approach was employed for a thorough inspection of any uncertainties within the measured cross-section data. Discussion and comparison of the observed outcome were carried out with previously published data, in particular with the results of the JENDL-4.0, JEFF-3.3, TENDL-2019, and ENDF/B-VIII.0 data libraries, along with the theoretical excitation function curve derived by employed the TALYS-1.95 program. Improved cross-section restrictions for the investigated processes in the 13–15 MeV neutron energy range will be furnished by the current findings, which will help to raise the caliber of the associated databases. Furthermore, the parameters of the pertinent nuclear reaction models can be verified using this data.

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“…The spectrum averaged cross-section for 98 Mo(n,γ) 99 Mo was determined using the wellknown standard neutron activation equation in [31] provided by…”

Section: Measurement Of Cross-section and Its Uncertaintymentioning

confidence: 99%

Measurement of neutron induced reaction cross-section of ⁹⁹Mo

Upadhyay,

Choudhary,

Singh

et al. 2023

J. Phys. G: Nucl. Part. Phys.

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In the present work, we have measured 98Mo(n,γ)99Mo reaction cross section using a 7Li(p,n)7Be neutron source at 1.67 ± 0.14, 2.06 ± 0.14 and 2.66 ± 0.16 MeV neutron energies. We have employed offline γ-ray spectroscopy to measure the induced activity of the sample. The 115In(n,n’γ)115mIn reaction was used as a monitor reaction. Different attributes propagating the uncertainty in the total result, measured cross-sections with their uncertainties and correlation coefficients are given in detail in the present study. The result is compared with the data libraries, EXFOR database and theoretical model outcome from different level density models.

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Neutron capture reaction cross section measurement for iodine nucleus with detailed uncertainty quantification

Cited by 17 publications

References 40 publications

Comprehensive analysis of uncertainty quantification for the ⁵⁸Ni(n, p)⁵⁸Co reaction cross section*

Comprehensive analysis of uncertainty quantification for the ⁵⁸Ni(n, p)⁵⁸Co reaction cross section*

New cross-section measurements for the (n, 2n), (n, p), and (n, α) reactions on bromine in the 14 MeV region with detailed uncertainty quantification*

Measurement of neutron induced reaction cross-section of ⁹⁹Mo

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Neutron capture reaction cross section measurement for iodine nucleus with detailed uncertainty quantification

Cited by 17 publications

References 40 publications

Comprehensive analysis of uncertainty quantification for the 58Ni(n, p)58Co reaction cross section*

Comprehensive analysis of uncertainty quantification for the 58Ni(n, p)58Co reaction cross section*

New cross-section measurements for the (n, 2n), (n, p), and (n, α) reactions on bromine in the 14 MeV region with detailed uncertainty quantification*

Measurement of neutron induced reaction cross-section of 99Mo

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Comprehensive analysis of uncertainty quantification for the ⁵⁸Ni(n, p)⁵⁸Co reaction cross section*

Comprehensive analysis of uncertainty quantification for the ⁵⁸Ni(n, p)⁵⁸Co reaction cross section*

Measurement of neutron induced reaction cross-section of ⁹⁹Mo