In a recent article by Alexander Dietrich and Jürgen Alex from the Paul Scherrer Institut, published in the CERN Courier, the authors delve into the critical importance of high-voltage pulse stability in klystron modulators, which are key components in free electron lasers such as SwissFEL. These modulators deliver high-voltage pulses, and any amplitude variations can significantly affect the performance of RF pulses.
The article introduces an innovative embedded system that uses the Red Pitaya STEMlab 125-14 board to simplify and enhance the accuracy of pulse stability measurements. This compact setup achieves a remarkable measurement precision down to 7–8 ppm, allowing for permanent live monitoring.
Read the whole article on the CERNcourier.com.
About the Red Pitaya Team
The Red Pitaya editorial team consists of engineers, researchers,
and product experts who develop and test cutting-edge open-source
test & measurement solutions.
Our mission is to make advanced instrumentation accessible to
everyone — from students and educators to leading research labs
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December 17, 2025
