Shielding experiments at high energy accelerators of Fermilab, 4; Calculation analyses

Matsuda, Norihiro  ; Kasugai, Yoshimi  ; Matsumura, Hiroshi*; Yashima, Hiroshi*; Iwase, Hiroshi*; Kinoshita, Norikazu*; Sanami, Toshiya*; Mokhov, N.*; Leveling, A.*; Boehnlein, D.*; Vaziri, K.*; Gary, L.*; Wayne, S.*; Nakamura, Takashi*; Oishi, Koji*; Hirayama, Hideo*; Ishibashi, Kenji*; Niita, Koji*; Sakamoto, Yukio; Nakashima, Hiroshi; Members of JASMIN corroboration*

The anti-proton (pbar) production target in Fermi National Accelerator Laboratory can be produced a wide variety of secondary particles including of anti-protons, by bombarding with protons accelerated to 120 GeV. The shielding experimental data, which was obtained around the pbar target, make possible to validate the accuracies of the general-purpose Monte Carlo simulation codes. In this paper, spatial distribution of reaction rates were calculated with two-dimensional (r-z) geometry simplified the real pbar target station using the PHITS, MARS and MCNPX code. These experimental data in iron shield were compared with the calculated data. The comparison for attenuation length of iron were good agreement between the experiments and calculations.