Neutron production for 250 MeV protons bombarding on thick grain-made tungsten target

Zhang, Xueying; Ma, Fei; Ju, Yong-Qin; Chen, Liang; Zhang, Hongbin; Li, Yanyan; Wan, Bo; Wang, Jianguo; Ge, Hualong

doi:10.1140/epja/i2015-15106-0

Cited by 14 publications

(5 citation statements)

References 13 publications

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“…[62] at 250 MeV. In general we have found that the GEANT4 simulations yield 10-20% less neutrons than experimental data and the FLUKA simulations 20-40% less, whereas we found better than 1% agreement with the simulations of Ref.…”

Section: Neutron Productionsupporting

confidence: 67%

“…We have simulated this production with GEANT4 and FLUKA and we have compared our results with experimental data at various energies up to 100 MeV [59,60] and also with the simulations of Ref. [61] at 250 MeV. In general we have found that the GEANT4 simulations yield 10-20% less neutrons than experimental data and the FLUKA simulations 20-40% less, whereas we found better than 1% agreement with the simulations of Ref.…”

Section: Neutron Productionsupporting

confidence: 54%

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Getting the most neutrinos out of IsoDAR

et al. 2017

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Several experimental collaborations worldwide intend to test sterile neutrino models by measuring the disappearance of antineutrinos produced via isotope decay at rest (IsoDAR). The most advanced of these proposals have very similar setups, in which a proton beam strikes a target yielding neutrons which are absorbed by a high isotopic purity 7 Li converter, yielding 8 Li whose resulting decay yields the antineutrinos. In this note, we use FLUKA and GEANT4 simulations to investigate three proposed modifications of this standard proposal. In the first, the 7 Li is replaced with 7 Li compounds including a deuterium moderator. In the second, a gap is placed between the target and the converter to reduce the neutron bounce-back. Finally, we consider cooling the converter with liquid nitrogen. We find that these modifications can increase the antineutrino yield by as much as 50%. The first also substantially reduces the quantity of high purity 7 Li which is needed.

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Section: Neutron Productionsupporting

confidence: 67%

Section: Neutron Productionsupporting

confidence: 54%

Getting the most neutrinos out of IsoDAR

et al. 2017

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“…The experimental tungsten target, with the dimensions of φ100mm×H100mm, was placed on the bottle of the spallation target zone in the center of the core. The tungsten target purity and density were respectively 99.95% and 18.2 g/cm 3 . The 304 stainless steel target clad with the thickness of 2mm was helpful to place the cylindrical tungsten target in and out the spallation target zone.…”

Section: Ii1 Experimental Facilitymentioning

confidence: 99%

“…a subcritical lead-bismuth reactor, a heavy metal spallation target and an intense-beam proton linac [2]. During the early stages of ADS projects, some experiments [3][4][5][6][7], which coupled the proton accelerator with the spallation target, have been performed by the researchers. However, the experimental studies about the coupling behaviors between the nuclear reactor and the spallation target have been rarely investigated.…”

Section: Introductionmentioning

confidence: 99%

Validation of Neutron Evaluated Data Based on The Experimental Reactivity Worth of Tungsten Target in CiADS

Jiang

et al. 2020

EPJ Web Conf.

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Measurement of a cylindrical tungsten target reactivity worth has been performed on the light water zero-power reactor of VENUS-II at China Institute of Atomic Energy (CIAE) in order to verify the neutron evaluated data related to the engineering design of Chinese initiative Accelerator Driven Systems (CiADS). The reactivity worth of the tungsten target was measured and processed as -1.234±0.114mk by a period method. The experimental result was compared with the simulation ones calculated by MCNP with five different libraries, i.e., ENDF/B-VII.0, ENDF/B-VII.1, JENDL-4.0, CENDL-3.1 and JEFF-3.2. By comparing the results of experiment and simulation, the simulated results from ENDF/B-VII.0, JENDL-4.0 and JEFF-3.2 are higher than the experimental result, however that from CENDL-3.1 is lower. The result from ENDF/B-VII.1 library shows better agreement with the experiment one and the relative deviation is less than 2%. Through the analysis of the differences of the results, non-tungsten elements cross sections in the ENDF/B-VII.1 mainly affect the tungsten radiation capture and elastic scattering reaction rates in the energy range of 10-9-10-7 MeV, which results in a better simulated tungsten target reactivity worth value. Therefore, it is recommended that the tungsten target reactivity worth should be calculated with the ENDF/B-VII.1.

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“…Our team has been engaged in experimental research in heavy ion nuclear physics [11,12,13,14], to learn more about the fragmentation reaction of 12 C , we have carried out an experiment of 80.5 MeV/u 12 C beam borbarding on C, W, Cu, Au and Pb targets. The energy spectrums and cross-sections of light particles have been measured at 30 • , 60 • and 120 • away from beam.…”

Section: Introductionmentioning

confidence: 99%

Nuclear reaction measurements of 80.5 MeV/u 12C beam bombarding on C, W, Cu, Au, Pb targets

Gao¹,

Zhang²,

Ju³

et al. 2021

Preprint

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To get the energy spectrum distribution and cross-sections of emitted light charged particles and explore the nuclear reaction, a experiment of 80.5 MeV/u 12 C beam bombarding on C, W, Cu, Au, Pb targets has been carried out at Institute of Modern Physics, Chinese Academy of Science. 30 • , 60 • and 120 • relative to the incident beam have been detected using three sets of telescope detectors. The method of ∆E-∆E-E was used for particle identification. The results indicate that there is a tendency that heavier targets have larger double differential cross-sections and the emitted fragments are more likely to go forward. Besides, the decrease of cross-sections of fragments producing with the increasing emitted angles may follow some kind of pattern.

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Neutron production for 250 MeV protons bombarding on thick grain-made tungsten target

Cited by 14 publications

References 13 publications

Getting the most neutrinos out of IsoDAR

Getting the most neutrinos out of IsoDAR

Validation of Neutron Evaluated Data Based on The Experimental Reactivity Worth of Tungsten Target in CiADS

Nuclear reaction measurements of 80.5 MeV/u 12C beam bombarding on C, W, Cu, Au, Pb targets

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