Measurements of the Cross-sections of Produced Short-Lived Nuclei Induced by Neutrons around 14MeV on Isotopes of Tungsten<sup>*</sup>

Sun, Xiaojun; Zhou, Fengqun; Song, Yushou; Li, Yong; Ji, Pengfei; Chang, Xinyi

doi:10.1088/0256-307x/36/11/112501

Cited by 4 publications

(4 citation statements)

References 11 publications

(13 reference statements)

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“…1, this (n, p) reaction gives a maximum cross-section of 3 mb, for neutron beam energy of 14.5 MeV [7]. With neutron energies in the range 14.3-14.9 MeV, the yield of 186 Ta is good enough for decay spectroscopy studies [8][9][10][11][12][13][14]. So far, the determination of the energy levels of 186 Ta has been undertaken only through the β-decay of 186 Hf [5].…”

Section: Methodsmentioning

confidence: 94%

Study of the Production Cross-Sections of the Neutron-rich 184Ta and 186Ta

Nagarajan¹,

Deepa

Ramadurai

2021

J. Nucl. Phy. Mat. Sci. Rad. A.

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Synthesizing nuclei through reactions that produce a reasonable yield is important for the experimental study of neutron-rich nuclei. In this study, the cross-section values of 184Ta and 186Ta nuclei in various experiments were reviewed and analysed. The experimental data of (n, p), (p, x) and (n, α) reactions were compared to identify the best reaction to produce these nuclei for further study. Our study shows that (n, p) reactions on natural Tungsten targets are the most feasible reactions with a good yield of the neutron-rich Tantalum isotopes. New reactions have been proposed for the effective synthesis of 184Ta and 186Ta using tritium beams on Hafnium targets. The cross-section values of the proposed reactions were calculated by PACE4 software simulations.

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Section: Methodsmentioning

confidence: 94%

Study of the Production Cross-Sections of the Neutron-rich 184Ta and 186Ta

Nagarajan¹,

Deepa

Ramadurai

2021

J. Nucl. Phy. Mat. Sci. Rad. A.

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“…The quasi-monoenergetic neutrons were produced via the T(d,n) 4 He reaction. The characteristics of this neutron source have been described earlier [31]. Groups of samples were placed at 0°, 45°, 90°and 135°angles relative to the deuteron beam direction.…”

Section: Experimental Details and Data Analysismentioning

confidence: 99%

“…The radioactive reaction products were identified by gamma ray counting and checking their half-lives. A GEM-60P coaxial HPGe ORTEC detector whose characteristics were described earlier [31] was used to measure the activities of 92m Nb from the irradiated monitor foils, and the activities of 183 Ta and 183 Hf from the irradiated samples. The samples and the monitor foils were placed directly at a distance of 90 mm from the end cap of the detector.…”

Section: Experimental Details and Data Analysismentioning

confidence: 99%

Method to subtract the effect of interference reactions that produce same product nucleus on the cross-section measurements of the target nuclear reaction and the cross-section of the ¹⁸³W(n,p)¹⁸³Ta reaction around 14 MeV neutrons^*

Song¹,

Zhou²,

Yuan³

et al. 2023

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

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For the problem of two or more nuclear reactions producing the same product nucleus in the actual cross section measurements of nuclear reactions, the method was given for subtracting the effect of interference reactions that produce same product nucleus on the cross-section measurements of the target nuclear reaction. The cross-section values were measured for the 183W(n,p)183Ta reaction at four different neutron energies from 13.5 to 14.8MeV by using the activation technique. In the process of the calculating cross-section data, the effects of the interference reactions 184W(n,d)183Ta and 184W(n,n+p)183Ta were subtracted by using the above method. At the same time the effect of the 186W(n,α)183Hf 183Ta process was also subtracted by using the previously developed method. Analysis and comparison shows that our experimental cross-section values for the 183W(n,p)183Ta reaction agrees with the previous results in the case of using the samples of enriched 183W at the close energies. Discrepancies in the previous cross-section data of the 183W(n,p)183Ta reaction were clarified and the recommendation excitation function curve for the 183W(n,p)183Ta reaction was given by adopting the nuclear theoretical model program system TALYS–1.95.

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“…Accelerator neutron sources are widely used in neutron physics and neutron applications, owing to the high neutron yield, good controllability, compactness, and nonproliferation capability [1][2][3][4][5][6][7][8][9]. Typically, in exothermic nuclear reactions, deuterons and tritons are bombarded with deuterium ions, producing fusion neutrons by the 2 H(d,n) 3 He (D-D) and 3 H(d,n) 4 He (D-T) reactions, and deuterium ions bombard beryllium, producing neutrons by the 9 Be(d,n) 10 B (D-Be) reaction for low energy ions at keV.…”

mentioning

confidence: 99%

Measurements of neutron energy spectra of ⁹Be(d,n)¹⁰B reaction with a thick beryllium target *

Zhang¹,

Hu²,

Han³

et al. 2021

Chinese Phys. C

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Novel measurements of the neutron energy spectra of the 9Be(d,n)10B reaction with a thick beryllium target are performed using a fast neutron time-of-flight (TOF) spectrometer for the neutron emission angles and , and the incident deuteron energies are 250 and 300 keV, respectively. The neutron contributions from the 9Be(d,n)10B reaction are distributed relatively independently for the ground state and the first, second, and third excited states of 10B. The branching ratios of the 9Be(d,n)10B reaction for the different excited states of 10B are obtained for the neutron emission angles and , and the incident deuteron energies are 250 and 300 keV, respectively. The branching ratio of the 9Be(d,n)10B reaction for the third excited state decreases with increase in the incident deuteron energy, and the branching ratios for the ground state and the second excited state increase with increase in the neutron emission angle.

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Measurements of the Cross-sections of Produced Short-Lived Nuclei Induced by Neutrons around 14MeV on Isotopes of Tungsten^*

Cited by 4 publications

References 11 publications

Study of the Production Cross-Sections of the Neutron-rich 184Ta and 186Ta

Study of the Production Cross-Sections of the Neutron-rich 184Ta and 186Ta

Method to subtract the effect of interference reactions that produce same product nucleus on the cross-section measurements of the target nuclear reaction and the cross-section of the ¹⁸³W(n,p)¹⁸³Ta reaction around 14 MeV neutrons^*

Measurements of neutron energy spectra of ⁹Be(d,n)¹⁰B reaction with a thick beryllium target *

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Measurements of the Cross-sections of Produced Short-Lived Nuclei Induced by Neutrons around 14MeV on Isotopes of Tungsten*

Cited by 4 publications

References 11 publications

Study of the Production Cross-Sections of the Neutron-rich 184Ta and 186Ta

Study of the Production Cross-Sections of the Neutron-rich 184Ta and 186Ta

Method to subtract the effect of interference reactions that produce same product nucleus on the cross-section measurements of the target nuclear reaction and the cross-section of the 183W(n,p)183Ta reaction around 14 MeV neutrons *

Measurements of neutron energy spectra of 9Be(d,n)10B reaction with a thick beryllium target *

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Measurements of the Cross-sections of Produced Short-Lived Nuclei Induced by Neutrons around 14MeV on Isotopes of Tungsten^*

Method to subtract the effect of interference reactions that produce same product nucleus on the cross-section measurements of the target nuclear reaction and the cross-section of the ¹⁸³W(n,p)¹⁸³Ta reaction around 14 MeV neutrons^*

Measurements of neutron energy spectra of ⁹Be(d,n)¹⁰B reaction with a thick beryllium target *