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TY - CONF AU - Mangeot, C. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - Nanopositioning and Actuation in Extreme Environment Using Piezoelectric Multilayer Actuators and Motors J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - Piezoelectric devices find numerous applications in Science projects, when precise and fast positioning is needed, particularly in harsh environment. This paper reviews some of the latest environmental tests performed on piezoelectric devices, illustrating how they enable higher performance or even new technical solutions. In the field of particle accelerators and instrumentation, two applications can be mentioned: the precise goniometer to be installed in the Large Hadron Collider (LHC) and active Lorentz force detuning compensation systems*. Multilayer actuators have been demonstrated over a wide range of temperatures, from cryogenic (4K) to 220°C, in UHV and under radiation. Other examples can be mentioned within the ITER project: the In-Vessel Viewing System (IVVS) and the Electron Cyclotron Emission (ECE) diagnostic**. For these applications, a piezo motor is needed. The Piezo Actuator Drive (PAD) was demonstrated at high temperature, UHV and submitted to high magnetic fields. PB - JACoW CP - Geneva, Switzerland SP - 4519 EP - 4521 KW - vacuum KW - radiation KW - diagnostics KW - operation KW - electron DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-THPVA039 UR - http://jacow.org/ipac2017/papers/thpva039.pdf ER -