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Journal Articles

Neutron-hole states in $$^{131}$$Sn and spin-orbit splitting in neutron-rich nuclei

Orlandi, R.; Pain, S. D.*; Ahn, S.*; Jungclaus, A.*; Schmitt, K. T.*; Bardayan, D. W.*; Catford, W. N.*; Chapman, R.*; Chipps, K. A.*; Cizewski, J. A.*; et al.

Physics Letters B, 785, p.615 - 620, 2018/10

 Times Cited Count:6 Percentile:56.91(Astronomy & Astrophysics)

Journal Articles

Shielding experiments under JASMIN collaboration at Fermilab, 3; Measurement of high-energy neutrons penetrating a thick iron shield from the antiproton production target by Au activation method

Matsumura, Hiroshi*; Kinoshita, Norikazu*; Iwase, Hiroshi*; Toyoda, Akihiro*; Kasugai, Yoshimi; Matsuda, Norihiro; Sakamoto, Yukio; Nakashima, Hiroshi; Yashima, Hiroshi*; Mokhov, N.*; et al.

Journal of the Korean Physical Society, 59(2), p.2059 - 2062, 2011/08

 Times Cited Count:1 Percentile:11.79(Physics, Multidisciplinary)

In an antiproton production (Pbar) target station of the Fermi National Accelerator Laboratory (FNAL), the secondary particles produced by bombarding a target with 120-GeV protons are shielded by a thick iron shield. In order to obtain experimental data on high-energy proton accelerator facilities, we indirectly measured $$>$$ 100-MeV neutrons at the outside of the iron shield. The measurement was performed by using the Au activation method coupled with a low-background $$gamma$$-ray counting system. As an indicator for the neutron flux, we determined the production rates of 8 spallation nuclides ($$^{196}$$Au, $$^{188}$$Pt, $$^{189}$$Ir, $$^{185}$$Os, $$^{175}$$Hf, $$^{173}$$Lu, $$^{171}$$Lu, and $$^{169}$$Yb) in the Au activation detector. The measured production rates were compared with the theoretical production rates calculated using PHITS. We proved that the Au activation method can serve as a powerful tool for indirect measurements of $$>$$ 100-MeV neutrons that play a vital role in neutron transport.

Oral presentation

Shielding experiments at high energy accelerators of FERMI, 6; Measurement of reaction products

Matsumura, Hiroshi*; Kasugai, Yoshimi; Yashima, Hiroshi*; Iwase, Hiroshi*; Matsuda, Norihiro; Kinoshita, Norikazu*; Sanami, Toshiya*; Hagiwara, Masayuki*; Shigyo, Nobuhiro*; Arakawa, Hiroyuki*; et al.

no journal, , 

A gold activation detector was studied as a high energy neutron detector at high radiation field in a series of shielding experiment at Fermi National Accelerator Laboratory. We could measure spallation residual nuclei with wide threshold energy by using a combination method with radiological chemical separation and X-X-$$gamma$$ coincidence detection methods. It was shown the detector was effective for high energy neutron detector.

Oral presentation

Neutron hole states in $$^{131}$$Sn studied via the $$^{132}$$Sn(d,t)$$^{131}$$Sn reaction

Orlandi, R.; Pain, S. D.*; Bardayan, D. W.*; Gross, C. J.*; Smith, M. S.*; Jungclaus, A.*; Ahn, S.*; Jones, K. L.*; Pittman, S. T.*; Schmitt, K. T.*; et al.

no journal, , 

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