TE 3530 Development and Optimization of Kicker Systems

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TE 3530 Development and Optimization of Kicker Systems for LIU-Projects A. Ferrero, T. Kramer

TE 3530 Development and Optimization of Kicker Systems for LIU-Projects A. Ferrero, T. Kramer TE 3530 2

What is a kicker magnet? • Fast pulsed dipole magnet for beam deflection. •

What is a kicker magnet? • Fast pulsed dipole magnet for beam deflection. • Used to kick incoming beam to the circulating orbit (injection kicker); • also used to kick the beam out of an accelerator (extraction kicker); • or to merge two beams into one single line. (recombination kicker). e. g. injection process TE 3530 3

How does a kicker magnet work? • The magnet filed is switched on only

How does a kicker magnet work? • The magnet filed is switched on only when it is needed to inject, extract or recombine a beam within a particle free gap Pulsed magnet hence important parameters are: • rise & fall time • flat top quality • Since it is a “fast” pulsed magnet, transmission lines theory must be applied. • Possible issues: Reflections due to line mismatches. • Limitations: Bandwidth defined by system design. TE 3530 4

Planned LIU Kicker upgrade • Under the LHC Injector Upgrade project, some kicker systems

Planned LIU Kicker upgrade • Under the LHC Injector Upgrade project, some kicker systems must be upgraded to allow for future 2. 0 Ge. V beam transfer. • Specification for rise & fall time and maximum system ripples must be respected. • Improvement possibilities had to be identified using analogue circuit simulations. TE 3530 5

Methodology • Started with brainstorming, interviews of senior engineers (identification of improvement possibilities) •

Methodology • Started with brainstorming, interviews of senior engineers (identification of improvement possibilities) • Development and verification by simulation • Validation with real measurements taken in the PS tunnel Simulations based on Orcad Pspice tool. Measurements done during technical stop (02/09/15) TE 3530 6

Some results Less flat top ripple. Less ringing at the rising edge. Less post-pulse

Some results Less flat top ripple. Less ringing at the rising edge. Less post-pulse ripple. TE 3530 7

Outlook • Test & measurement campaign foreseen for some of the KFA-45 improvements during

Outlook • Test & measurement campaign foreseen for some of the KFA-45 improvements during upcoming YETS. • Meanwhile started: Optimization of the recombination kicker KFA-10. • Planned: Analysis of fast 100 ns MKP-S kicker upgrade (SPS injection). • Old kicker model obtained. • Model update and optimization needed. • Hardware measurements on test stand foreseen. TE 3530 8

Thank you TE 3530 9

Thank you TE 3530 9

KickerInflector optimization Kicker field Field required to steerKickerInflector optimization Kicker field Field required to steer
Multiobjective Optimization Multiobjective Optimization Some optimization problems haveMultiobjective Optimization Multiobjective Optimization Some optimization problems have
linear optimization u nonlinear optimization u quadratic optimizationlinear optimization u nonlinear optimization u quadratic optimization
linear optimization u nonlinear optimization u quadratic optimizationlinear optimization u nonlinear optimization u quadratic optimization
COP 3530 Data Structures Arrays and Lists DrCOP 3530 Data Structures Arrays and Lists Dr
FCChh kicker systems Status and RD plans MFCChh kicker systems Status and RD plans M
Kicker Systems Part 1 Introduction and Hardware MKicker Systems Part 1 Introduction and Hardware M
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