The high level applications for the HEPS Linac

The High Energy Photon Source (HEPS) is a 6 GeV diffraction-limited storage ring based light source, which is under construction in Beijing, China. The HEPS accelerator consists of a Linac, a booster, a storage ring and three transfer lines. Installation and high-power conditioning of the Linac has been completed. For beam commissioning and measurements of the HEPS Linac, it is necessary to develop high level applications (HLAs). The development of the Linac HLAs, based on the framework named Python accelerator physics application set(Pyapas), has been completed. All the applications are physics quantity based, including measurement applications, control applications and monitoring applications. All the applications have been tested and verified on virtual accelerator. The results show the validity of the algorithm and indicate that the developed applications could meet the requirements of Linac commissioning. All the applications have been deployed to the actual machine environment and communication and control test with hardware system have been completed.