Workshop on Machine Protection, focusing on Linear Accelerator complexes : 6th - 8th June, 2012

Session

Failure mitigation

7 Jun 2012, 14:00

30/7-018 - Kjell Johnsen Auditorium (CERN)

Conveners

Failure mitigation

• Michael Jonker (CERN)

Description

Reviews of various types of failure mitigation:
- Passive protection (masks , materials, collimators, non linear optics)
- RT protection
- Safe by design
- Interlock systems (equipment and post pulse assessment)

28. Beam Loss Mechanisms and Mitigation at SLC

Marc Ross (Fermilab)

07/06/2012, 14:00

The SLAC Linear Collider (SLC) was intended in part to demonstrate that linear colliders could work. Even though it did not meet luminosity goals, physics goals were met and remain comparable to LEP results. Stabilizing the SLC was the most difficult challenge and transitions in beam power, caused by frequent machine protect system faults were the most serious source of instability. MPS...

29. The post-LINAC collimation system of CLIC: Machine Protection Aspects

Javier Resta Lopez (IFIC, Valencia University), Rogelio Tomas Garcia (CERN)

07/06/2012, 14:30

The main functions of the post-linac collimation system for future linear colliders are: the cleaning of the beam halo particles which potentially can generate detector background at the Interaction Point (IP); and the protection of the Beam Delivery System (BDS) by minimising the activation and damage of downstream equipment. In this presentation we focus mainly on the machine protection...

30. Novel advanced materials for next-generation Beam Intercepting Devices

Alessandro Bertarelli (CERN)

07/06/2012, 15:00

The introduction of new, extremely energetic particle accelerators has brought about the need for advanced cleaning and protection systems in order to safely increase the beam energy and intensity to unprecedented levels. A new family of materials, combining the physical, thermal, electrical and mechanical properties which are required by the extreme working conditions existing in high...

31. Reliable beam extraction

Dr Jan Uythoven (CERN)

07/06/2012, 15:50

Beam extraction systems are used in a linear accelerator complex at the combiner rings, at the damping rings, for beam distribution and for emergency dumps if the bunch spacing allows. The highly brilliant beams used have a large damage potential in case of extraction failures. The failures can be categorised in trigger errors, timing errors and amplitude errors. The LHC beam dumping system is...

32. Safe by design Clic powering

David Nisbet (CERN)

07/06/2012, 16:20

A large number of magnet powering systems are required for the CLIC machine complex. Several studies have been made to ensure a reliable and safe powering system that meets the CLIC technical requirements. The presentation will introduce the powering concepts proposed for the drive beam and main beam magnets to ensure appropriate machine availability, and introduce the methods used to estimate...

33. CLIC Interlock system: preliminary study

Patrice Denis Eric Nouvel (Insitut National Polytechnique de Toulouse (FR))

07/06/2012, 16:50

This presentation gives an overview of the CLIC interlock system study. From the Machine Protection strategy, there is a need to cover some anticipated failures. This leads to a necessity of an Interlock system. An explanation of the two principles that are comprised by this system is given. The main challenges and the current solution planned are then described. Finally, the ongoing works to...