9-15 June 2018
Woodlands Conference Center
America/New_York timezone
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High-power Piezoelectric Tuner Driver for Lorentz Force Compensation

12 Jun 2018, 14:40
1h 30m
Woodlands Conference Center

Woodlands Conference Center

159 Visitor Center Dr, Williamsburg, VA 23185
Poster presentation New Standards Poster 1

Speaker

Dr Dariusz Makowski (Lodz University of Technology, Department of Microelectronics and Computer Science)

Description

Superconducting Radio Frequency (SRF) cavities are used in modern accelerators to efficiently accelerate particles. When cavity is supplied with pulsed RF field it undergoes a mechanical strain due to the Lorentz force. The resulting deformation causes dynamic detuning whose amplitude depends on mechanical properties of the cavity, RF pulse rate and their profile. This effect causes considerable loss of acceleration performance. Therefore, it is usually actively compensated, most commonly with fast piezoelectric actuators.
MicroTCA.4 standard was developed to accommodate control and data acquisition electronic systems of large-scale physics applications. The paper presents a design of high-power amplifier implemented using the MicroTCA.4 technology. The design of the driver was optimized for driving large-capacitance piezo actuators. Several possible architectures of the driver are presented and compared, taking into consideration the power and cooling limitations of MicroTCA.4. The design of a two-channel piezo driver and its initial laboratory test results are also discussed.

Institute University of Lodz
Country Poland
Speaker Dariusz Makowski
Description microTCA 4.
Minioral Yes

Primary author

Dr Dariusz Makowski (Lodz University of Technology, Department of Microelectronics and Computer Science)

Co-authors

Aleksander Mielczarek (Lodz University of Technology) Mr Piotr Perek (Lodz University of Technology) Mr Aleksander Szubert (Lodz University of Technology) Mr Pawel Plewinski (Lodz University of Technology) Dr Grzegorz Jablonski (Lodz University of Technology) Dr Wojciech Cichalewski (Lodz University of Technology) Prof. Andrzej Napieralski (Lodz University of Technology)

Presentation Materials