Superconducting cavity driving with FPGA controller

被引：53

作者：

Czarski, Tomasz

Koprek, Waldemar

Pozniak, Krzysztof T.

Romaniuk, Ryszard S. ^{[1
]}

Simrock, Stefan

Brandt, Alexander

Chase, Brian

Carcagno, Ruben

Cancelo, Gustavo

Koeth, Timothy W.

机构：

[1] Warsaw Univ Technol, ELHEP Lab, ISE, Warsaw, Poland

[2] DESY, D-2000 Hamburg, Germany

[3] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[4] Rutgers State Univ, Piscataway, NJ 08855 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2006年 / 568卷 / 02期

关键词：

TESLA cavity control; CHECHIA driving; FPGA; system identification; LLRF control;

D O I：

10.1016/j.nima.2006.07.063

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A digital control of superconducting cavities for a linear accelerator is presented. FPGA-based controller, supported by Matlab system, was applied. Electrical model of a resonator was used for design of a control system. Calibration of the signal path is considered. Identification of cavity parameters has been carried out for adaptive control algorithm. Feed-forward and feedback modes were applied in operating the cavities. Required performance has been achieved; i.e. driving on resonance during filling and field stabilization during flattop time, while keeping reasonable level of the power consumption. Representative results of the experiments are presented for different levels of the cavity field gradient. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：854 / 862

页数：9

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