(Overview of RF Systems for the Advanced Photon Source).
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Published: 1990
Total Pages: 68
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DOWNLOAD EBOOKThe Advanced Photon Source (APS) is being built by Argonne National Laboratory (ANL) near Chicago. The APS is a 7-GeV positron storage ring from which x-ray beams of energies from a few keV to hundreds of keV are emitted as the positrons pass through ring bending magnets and also through special magnets called wigglers and undulators. The present schedule is to be operational in 1995. The energy emitted from the positron beam as x-rays is replaced through a radio-frequency accelerating system operating at 352 MHz at a maximum power level of 3 MW. The RF system will be described as well as several lower-power systems at frequencies of 0.8 MHz, 117 MHz and 2.8 GHz. The associated control electronics (phase shifters amplitude control, automatic tuning control, etc.) as well as the computer control architecture will also be described.