Investigation of combined degrader for proton facility based on BDSIM/FLUKA Monte Carlo methods

The beam properties, including emittance, beam size, transmission efficiency,energy spread at the exit of the first dipole is perfomed by BDSIM (version 1.4), corresponding to the script of Fig.3 and Fig.4 in NST-2021-0373.R1.The proton interactions with two degrader models are based on the FLUKA (version 4.1) and Flair (version 3.1–8) in Ubuntu 18.04, corresponding to the script of Fig.5 ,Fig.6 , Table 2 and Table 3 in NST-2021-0373.R1.All ".opj" files created and edited by OriginLab 2020.