supported by the CAS Project for Young Scientists in Basic Research(YSBR-042);the National Natural Science Foundation of China(12125508,11935020);Program of Shanghai Academic/Technology Research Leader(21XD1404100);Shanghai Pilot Program for Basic Research—Chinese Academy of Sciences,Shanghai Branch(JCYJ-SHFY-2021-010).
Purpose X-ray free-electron laser facilities require high-repetition and high-energy electron beams,which makes the radiation safety become an important issue due to beam loss.Beam collimation is used to protect the u...
supported by the National Natural Science Foundation of China(NSFC)(Grant No.11675235,11975286);the National Key R&D Program of China(Grant No.2019YFA0405401).
Background The Booster Ring is further designed to store and accelerate protons up to 2×1012 particles per pulse in the High-Intensity heavy-ion Accelerator Facility project,which was originally designed to accelerat...
supported by the National Key R&D Program of China(Grant No.2016YFA0401100);the Science and Technology on Plasma Physics Laboratory(Grant Nos.6142A04180201 and JCKYS2020212006);National Natural Science Foundation of China(Grant No.11975214);the Science Challenge Program(Grant Nos.TZ2016005 and TZ2018005)
The transport of sub-picosecond laser-driven fast electrons in nanopore array targets is studied.Attributed to the generation of micro-structured magnetic fields,most fast electron beams are proven to be effectively g...
In view of the movable hook structure on zero position,the traditional system could not recognize the zero scale.According to the essential requirements of the measurement,a new system based on machine vision was prop...
financially supported by Radiation Application Research School as a part of Nuclear Science and Technology Research Institute
Multiphase flow meters as the potential alternatives to separation and metering techniques have been in rapid development since 1980 s.Before its field operation,the instrument should be calibrated in a standard test-...
The acceleration mechanism of astrophysical jet and the collimation mechanism narrowing down to a long distance have been examined so far. It is a collimation problem of how to narrow the astrophysical jet narrowly. F...
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...
Acquiring CT images with thin slices can improve resolution and detectability, but cause an increase in the image noise. To compensate for the additional image noise, the kVp or mA can be increased, which carries a do...