Investigation Of The Fragmention In The Reaction Of388A MeV²⁰Ne In Al Target

The total charge-changing cross sections for the production ofprojectile fragments are measured in the interactions of388A MeV20Ne with aluminum target sandwiched with CR-39plastic nucleartrack detectors. The measured total charge-changing crosssections are compared with the predictions using the Bradt-Peterssemi-empirial formula,and the NUCFRAG2and PHITS modles.It isshown that the measured experimental results are in goodagreement with the theoretical modle prediction and otherexperimental results,and it can be clearly seen that the partialcross sections for fragment production show obvious odd-eveneffects.On the other hand, this experiment also studied the primaryparticles and secondary particles of the scattering Angle， theprimary particles and secondary particles are produced by theinteractions of388A MeV20Ne with aluminum target. To track the same incident particle track of positive and negative detector andadjacent detectors through the track matching program. The sameparticles in different position of detector into a straight line, Whichthe scattering Angle of the particles through the target are obtained.Found from the result of the experiment of secondary particlesscattering Angle is larger than primary particles scattering Angle.