DENIM 2025 - Design and Engineering of Neutron Instruments Meeting

Session

CHOPPERS

CH

21 Oct 2025, 16:00

27. Development and Qualification of a High-Speed Chopper Disc Hub

Mr Xabin Olaskoaga Marijuan (Airbus)

21/10/2025, 16:00

Presentation

This presentation will discuss the development and qualification of a novel spiral hub designed for high-speed Carbon Fiber Reinforced Polymer (CFRP) Chopper discs on a magnetically levitated SKF spindle. The development of the spiral hub was motivated by previous failures of Chopper disc hubs, which were attributed to high press-fit stress and low-cycle fatigue due to stress cycles during...

55. From a shaky start to the mass production of choppers - The past and present of chopper delivery at ESS

Erik Nilsson (European Spallation Source ERIC)

21/10/2025, 16:15

Presentation

This talk will focus on the delivery of chopper systems for the ESS instrument suite. It will give an overview of the chopper deliveries at ESS with focus on the in-house designs and developments. The talk will look back on where we started, 13 years ago, and explain how we ended up where we are. The talk looks at development and technical lessons mixed with some personal growth and formative events.

77. Controls and integration of Choppers at ESS

Andres Quintanilla (ESS)

21/10/2025, 16:30

Presentation

The proper control of neutron choppers is essential for improving the precision, reliability, and efficiency of experiments conducted at neutron research facilities. This presentation contains the various strategies explored at ess for controlling neutron choppers, including data standardization, hardware, and phase control. We will discuss differences in control systems for choppers at ess,...