Control of CAFe Beam Energy Using Linear Accelerator Simulation Software AVAS and Beam Line Calibration Technology

A new accelerator simulation code named Advanced Virtual Accelerator Software (AVAS) was developed by the Institute of Modern Physics, Chinese Academy of Science. Although the code is proposed to simulate the particle transport in the linac of the China Initiative Accelerator Driven System (CiADS), it can be also used for common linacs. We have constructed a framework for the accelerator simulation program AVAS based on the structure, function, parameters, errors, and operational logic of real accelerators. The mapping relationship between the operating parame-ters and simulation parameters of the Chinese ADS Front-end Demo Linac (CAFe) superconducting sec-tion was successfully established through AVAS. In the testing experiment, AVAS successfully set the operat-ing parameters of the CAFe superconducting section, and the deviation between the energy setting value and the actual measurement value was about 0.5%.