1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Microwave instability driven by terahertz-scale resistive-wall impedance in Diamond-II

WEPS071
4 Jun 2025, 16:00
2h
Exhibiton Hall A _Salmon (TWTC)

Exhibiton Hall A _Salmon

TWTC

Poster Presentation MC5.D05 Coherent and Incoherent Instabilities Theory, Simulations, Code Development Wednesday Poster Session

Speaker

Ian Martin (Diamond Light Source)

Description

Vacuum vessels of the Diamond-II storage ring feature non-evaporable getter (NEG) coating which cause a resonator-like peak in the longitudinal impedance. This work demonstrates how different parameters of NEG can increase momentum-spread growth. It is shown that the spread of the coating-layer thickness amongst vacuum vessels results in significantly reduced momentum-spread growth. Insertion devices featuring rectangular geometry and NEG coating can cause a multi-peak structure of the longitudinal impedance which can drive additional momentum-spread growth.

Region represented Europe
Paper preparation format LaTeX

Author

Dmitrii Rabusov (Diamond Light Source)

Co-authors

Ian Martin (Diamond Light Source) Richard Fielder (Diamond Light Source)

Presentation materials

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