MicroTCA.4-Based Low-Level RF for Continuous Wave Mode Operation at the ELBE Accelerator

被引：7

作者：

Zenker, K. ^{[1
]}

Guemues, C. ^{[2
]}

Hierholzer, M. ^{[2
]}

Michel, P. ^{[1
]}

Pfeiffer, S. ^{[2
]}

Schlarb, H. ^{[2
]}

Schmidt, C. ^{[2
]}

Schurig, R. ^{[1
]}

Steinbrueck, R. ^{[1
]}

Kuntzsch, M. ^{[1
]}

机构：

[1] Helmholtz Zentrum Dresden Rossendorf, D-01328 Dresden, Germany

[2] DESY, D-22607 Hamburg, Germany

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2021年 / 68卷 / 09期

关键词：

Field programmable gate arrays; Radio frequency; Servers; Data acquisition; Hardware; Control systems; Clocks; Bandwidth; cavity resonators; computer architecture; control system; electron accelerator; field programmable gate arrays (FPGAs); hardware; linear particle accelerator; radio frequency; resonant frequency;

D O I：

10.1109/TNS.2021.3096757

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

At the ELBE Center for High-Power Radiation Sources, electrons are accelerated to an energy of up to 40 MeV in a superconducting linear accelerator that is operated in continuous wave (CW) mode. The acceleration is achieved using superconducting radio frequency (RF) cavities, which are driven by an analog low-level RF (aLLRF) system and solid-state-based RF amplifiers. The analog aLLRF system was transformed to a digital system based on the MicroTCA standard. It is in user operation since 2020. Here, the new digital system and its integration in the ELBE control system are described. Furthermore, the system is characterized by noise measurements and shows rms field stability of the digital LLRF (dLLRF) system of 0.01 degrees in phase and 0.005% in amplitude. In addition, an algorithm for compensating long-term drifts is presented and characterized.

引用

页码：2326 / 2333

页数：8

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