Supported by National Natural Science Foundation of China(11205248)
A new method for analyzing the collimation angle of a neutron Soller collimator is described. A Gaus- sian distribution formula is used to define the angular distribution function of the neutron source and the neutron...
Supported by National Natural Science Foundation of China(11079001)
A Medium Energy Beam Transport line 1 (MEBT1) has been designed for Injector Scheme II of the China, ADS project. To match the beam from RFQ to Superconducting (SC) Half Wave Resonator (HWR) sections with emitta...
Supported by National Natural Science Foundation of China(11305227)
Significant beam loss caused by the charge exchange processes and ion impact-induced outgassing may restrict the maximum number of accelerated heavy ions during the high intensity operation of an accelerator. In order...
Supported by National Natural Science Foundation of China(11105160)
For the research of CCD neutron radiography, a neutron collimator was designed based on the exit of thermal neutron of the Boron Neutron Capture Therapy(BNCT) reactor. Based on the Geant4 simulations, the preliminar...
Supported by National Natural Science Foundation of China(11235012,10975150)
The back-streaming neutrons from the spallation target at CSNS are very intense, and can pose serious damage problems for the devices in the accelerator-target interface region. To tackle the problems, a possible sche...
Supported by National Natural Science Foundation of China (10635090)
A new SSC-linac system (injector into separated sector cyclotron) is being designed in the HIRFL (heavy ion research facility of Lanzhou). As part of SSC-Linac, the LEBT (low energy beam transport) consists of s...
Supported by National Natural Science Foundation of China (10635090)
A new SSC (Separated Sector Cyclotron)-Linac is being designed to serve as an injector for the SSC at the HIRFL (Heavy Ion Research Facility Lanzhou). The beam intensity at the LEBT (Low Energy Beam Transport) f...
The current design of the CSNS/RCS beam collimation system consists of a two-stage betatron collimation and a single momentum collimator. This paper summarizes various aspects of collimator design, including collimati...