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TUPSA33 |
Horizontal Klystron Cathode Heater Power Supply System for the European XFEL | |
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| The European XFEL project will employ L-band multibeam horizontal klystrons (MBK) from companies Toshiba (E3736) and Thales (TH 1802). Using the horizontal type of klystrons will significantly reduce construction costs of XFEL tunnel, but due to the large weights and dimensions of the pulse transformers and klystrons requires far more complicated mechanism to connect the klystrons and the pulse transformers inside the tunnel. It was proposed to make these connections by using flexible HV cable. BINP has developed an intermediate oil tank, connection module (CM), which on one side is connected to the cathode of klystron and on the other side has a HV connector for the connection to the pulse transformer. The connection module mechanically consists of two assemblies. The first is the oil tank that has inside an insulated filament transformer and measurement system. The second is the high frequency power supply unit (HFPS) what can be up to 20 meters away from the oil tank. The insulating transformer is designed by unique technology of the coupled resonant circuits with a high-voltage gap of 49 mm and coupling factor ~0.6. Its working frequency is about 1.6 kHz. The efficiency is gained about 90%, and maximum electric field intensity does not exceed 35 kV/cm. In this paper we give an overview of the design and the test results of the horizontal klystron cathode heater power supply system based on using HV insulating transformer with coupling factor <1. | ||
| THX01 | Results of LIA-2 Operation | 275 |
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Funding: Supported in part by Russian ministry of science and education. Recent results of LIA-2 operation are presented. High quality of intense electron beam has been achieved in designed intervals of energy and current. All key elements of accelerator based on domestic technology successfully passed though long term operational tests. |
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Slides THX01 [1.271 MB] | |