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Verification of high-energy transport codes on the basis of activation data

放射化実験データに基づく高エネルギー輸送コードの検証

Titarenko, Yu. E.*; Batyaev, V. F.*; Butko, M. A.*; Dikarev, D. V.*; Florya, S. N.*; Pavlov, K. V.*; Titarenko, A. Yu.*; Tikhonov, R. S.*; Zhivun, V. M.*; Ignatyuk, A. V.*; Mashnik, S. G.*; Boudard, A.*; Leray, S.*; David, J.-C.*; Cugnon, J.*; Mancusi, D.*; Yariv, Y.*; Kumawat, H.*; 西原 健司; 松田 規宏; Mank, G.*; Gudowski, W.*

Titarenko, Yu. E.*; Batyaev, V. F.*; Butko, M. A.*; Dikarev, D. V.*; Florya, S. N.*; Pavlov, K. V.*; Titarenko, A. Yu.*; Tikhonov, R. S.*; Zhivun, V. M.*; Ignatyuk, A. V.*; Mashnik, S. G.*; Boudard, A.*; Leray, S.*; David, J.-C.*; Cugnon, J.*; Mancusi, D.*; Yariv, Y.*; Kumawat, H.*; Nishihara, Kenji; Matsuda, Norihiro; Mank, G.*; Gudowski, W.*

ITEPで測定された、$$^{rm nat}$$Cr, $$^{56}$$Fe, $$^{rm nat}$$Ni, $$^{93}$$Nb, $$^{181}$$Ta, $$^{rm nat}$$W, $$^{rm nat}$$Pb, $$^{209}$$Biターゲットに40-2600MeVの高エネルギー陽子を入射した場合の核種生成断面積を用いて、幾つかのよく用いられる高エネルギー輸送コードの予測精度を評価した。ITEPの実験結果はCGIで行われた多数のインバースカイネマティクス法の実験データとおおむね一致している。測定データの解析は、MCNPX(Bertini, Isabelオプション), CEM3.02, INCL4.2+ABLA, INCL4.5+ABLA07, PHITS、及び、CASCADE.07を用いて行われた。すべてのターゲット・入射エネルギーに対して、計算値と実験値の間の逸脱係数を評価し、今回評価されたすべてのコードで改善が必要なことを示した。加えて、$$^{208}$$Pbターゲットに500MeV陽子を入射した新たな実験の結果を公開する。

Nuclide production cross sections measured at the Institute for Theoretical and Experimental Physics (ITEP) for the targets of $$^{rm nat}$$Cr, $$^{56}$$Fe, $$^{rm nat}$$Ni, $$^{93}$$Nb, $$^{181}$$Ta, $$^{rm nat}$$W, $$^{rm nat}$$Pb, and $$^{209}$$Bi irradiated by protons with energies from 40 to 2600 MeV were used to estimate the predictive accuracy of several popular high-energy transport codes. A general agreement of the ITEP data with the data obtained by other groups, including the numerous GSI data measured by the inverse kinematics method was found. Simulations of the measured data were performed with a number of codes. Deviation factors between the calculated and experimental cross sections have been estimated for each target and for the whole energy range covered by our measurements. Further improvements of all tested here codes are recommended. In addition, new measurements at ITEP of nuclide yields from the $$^{208}$$Pb target irradiated by 500-MeV protons are presented.

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