The Mu2e Experiment has stringent beam structure requirements; namely, its proton bunches with a time structure of 1.7µs in the Fermilab Delivery Ring. This beam structure will be delivered using the Fermilab 8-GeV Booster, the 8-GeV Recycler Ring, and the Delivery Ring. The 1.7-µs period of the Delivery Ring will generate the required beam structure by means of a third order resonant extraction system operating on a single circulating bunch. The electrostatic septum (ESS) for this system is particularly challenging, requiring mechanical precision in a ultra high vacuum of 1E-8Torr to generate 100kV across 15mm. This paper describes a graphical user interface that has been developed to automate the conditioning and commissioning process for the electrostatic septa. It is based on an interface to the Fermilab ACNET system using the ACSys Python Data Pool Manager (DPM) Client produced and maintained by Fermilab Accelerator Controls. Network interfacing between data pool managers made by the application and ACNET devices introduce an inherent (approximately 1s) latency in throughput of the readouts. This delay is utilized to process and graph incoming data events of devices crucial to conditioning of a electrostatic septum (ESS). `Ramping' and `Monitoring' modes adjust settings of the power supply based on internal logic to efficaciously increase and maintain the high voltage (HV) in the ESS, easing the voltage setting on incidence of sparking or other possibly damaging events. A timestamped log file is produced as the application runs.

The codes UNDUMAG and WAVE have been developed at HZB/BESSY. They are used intensively to design undulators, and to understand their magnetic and synchrotron radiation properties, as well as their impact on the storage ring. Recent extensions will be presented. A more intuitive input file to define undulator geometry has been developed, as well as a Python based GUI that allows the set-up of common undulator types. This GUI also allows the visualization of results. The magnetization of permanent magnet blocks can now be defined in terms of polynomial coefficients to simulate and study magnet inhomogeneities. WAVE has also been interfaced to UNDUMAG to calculate the real magnetic field of insertion devices. A second undulator mode has also been developed that calculates undulator synchrotron radiation by summing the radiation field amplitudes of a single period with appropriate phase advance and depth of field effect corrections. Field and phase errors can be included in this mode, which has seen a speed performance increase of an order of magnitude.

The Rapid Cycling Synchrotron is the key part of the China Spallation Neutron Source with the repetion rate of 25Hz. The lattice of the RCS is based on triplet cells with the superperiod of four. Due to ultilizing the trim quadrupoles in June 2021, the BPM OffSets were carefully measured, and the beam operation is more steady. In this paper, we will review the preparation of BPM OffSets measurements with the virtual accelerator, and the results of the measurements with beam.

The Linac system at Taiwan Light Source (TLS) has been in operation for almost a quarter of a century and requires upgrades to improve its reliability. To achieve this, some components of the control system have been replaced with new digital low-level RF control units that use emerging technologies. A new unit is based on the open-source hardware platform which is named “Red Pitaya STEMlab” and offers a compact size and low power consumption. The unit features DAC blocks for downloading arbitrary waveforms with external trigger play and ADC blocks for waveform acquisition, enabling the development of real-time diagnostic toolkits. The new low-level RF control interface has been fully integrated into the existing EPICS software framework for system integration. The new digital low-level RF control system supports I/Q data with online amplitude and phase settings, and a waveform digitizer for inspecting low-level RF signals from the klystron modulator. Specific graphical applications have been designed and integrated into the existing operation interfaces. The system has been successfully achieved during routine operations. This paper describes the details of these efforts.