Electromagnetic Simulations for the PETRA III BPMs
نویسنده
چکیده
1.1. PETRA III: PETRA III is a new high-brilliance synchrotron radiation source to be built at DESY, Hamburg [1]. Planned to start operation in 2009, the facility will have 14 beam lines spread along one eighth of its circumference. 40 to 960 bunches with a current of 100 mA and an emittance of 1 nm·rad will be circulated at 6 GeV. The topping up operation will ensure a stable beam. 235 beam position monitors (BPM) of button type with several different designs will be built in the various chamber sections of the accelerator. These monitors have been studied through various methods, such as measurements on button models, analytical calculations and simulations of the electromagnetic fields. This report presents simulations made with two electromagnetic field codes, MAFIA [2] and Microwave Studio [3], on the characteristics of these BPMs. The results for a few types of monitors are shown.
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