|TUPOW019||Preliminary Concept of Fast Positron Source Based on Photo-injector||1785|
Funding: Supported by National Natural Science Foundation of China (11375178 and 11575181) and the Fundamental Research Funds for the Central Universities, Grant No WK2310000046
Based on the past experience in slow positron beam, researchers at NSRL/USTC proposed a fast positron source for detection of material deep tiny flaws. Different from conventional positron sources used in positron annihilation techniques, the planned positron source will be a positron production linac, similar to positron injectors used in colliders. To compress the positron pulse, the bombarding electron beam comes from a short bunch photo-injector. A computer simulation was performed using EGS4 and PARMELA code. The bombarding electron bunch is 300pC, with an energy of 30MeV. Simulations results showed that it is reasonable to expect a beam of more than 105 positrons per pulse for future positron annihilation studies. Further work is to be done to achieve precise control of beam energy.
|DOI •||reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPOW019|
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