Mini-workshop on impedance modeling and impedance effects at SuperKEKB and future colliders

Name: Mini-workshop on impedance modeling and impedance effects at SuperKEKB and future colliders
Start: 2022-12-15T09:00:00+09:00
End: 2022-12-16T18:20:00+09:00
Location: No location set

15 Dec 2022, 09:00 → 16 Dec 2022, 18:20 Asia/Tokyo

Meeting room, KEKB control building

Demin ZHOU (KEK), Takuya ISHIBASHI (KEK)

Description

This topical two-day mini-workshop is a follow-up workshop after the eeFACT2022 for scientists working on various projects to discuss impedance modeling and impedance effects at circular accelerators, including colliders SuperKEKB, FCC-ee, CEPC, EIC, and light sources ESRF, NSLS-II, etc.

The event will take place at KEK, Tsukuba, Japan, from 15 to 16 December 2022 in a hybrid in-person and online participation format.

Workshop organization committee:

D. Zhou, T. Ishibashi (KEK, Japan)

M. Migliorati (UNIROMA1, Italy)

N. Wang (IHEP, China)

A. Blednykh (BNL, USA)

Video recordings of the presentations:

https://kds.kek.jp/event/44236/

Registration

Impedance mini-workshop 2022

Participants

Aamna Khan
Alexei Blednykh
Ali Rajabi
Andrii Natochii
Demin ZHOU
Emanuela carideo
Gabriele Bassi
Gaku Mitsuka
Haruyo Koiso
Katsunobu Oide
kazuhito ohmi
Kodai Matsuoka
Lee Carver
Makoto Tobiyama
Mauro Migliorati
Michael Blaskiewicz
Mitsuo Kikuchi
Na Wang
Naoko Iida
Naoto Yamamoto
Olga Tanaka
Prakash Joshi
Shalva Bilanishvili
Shogo Sakanaka
Takashi Yoshimoto
Takeshi Nakamura
Takuya Ishibashi
Viacheslav Kubytskyi
Victor Smaluk
Yoshihiro Funakoshi
Yuan Zhang
Yuki Abe
Yukiyoshi Ohnishi
Yuting Wang
Zachary Liptak

Thursday, 15 December
- Thu, 15 Dec
- Fri, 16 Dec
- 09:00 → 12:30
  Thursday morning: Morning session 1
  
  Join Zoom Meeting
  https://us06web.zoom.us/j/86477803363?pwd=SDlsSVhRZDRKNWRoQW82VXR6cHBkQT09
  Meeting ID: 864 7780 3363
  Passcode: 969597
  
  Conveners: Alexei Blednykh (BNL), Na Wang (IHEP)
  - 09:00
    
    Opening remark 10m
    
    20221215_Opening_Remark.pdf
  - 09:10
    
    Generalized Nyquist Criterion for Transverse Stability 30m
    
    Speaker: Dr Michael Blaskiewicz (BNL)
    
    nyquist_trans_kek.pdf
  - 09:40
    
    Coupled-bunch instability for arbitrary multibunch configurations 30m
    
    Speaker: Dr Gabriele Bassi (BNL)
    
    Bassi_CBI.pdf
  - 10:10
    
    Impedance modeling and its application to the analysis of the collective effects 30m
    
    Speaker: Dr Alexei Blednykh (BNL)
    
    Impedance_ab.pdf
  - 10:40
    
    Break 10m
  - 10:50
    
    Collimator model & FCC-ee impedance model 30m
    
    Speaker: Dr Mostafa Behtouei (INFN-LNF)
    
    ImpedanceWorkshoKEK_Mostafa_Behtouei.pdf
  - 11:20
    
    Resistive wall impedance and incoherent tune shift for elliptical multilayer beam pipe 30m
    
    Speaker: Yuting Wang (IHEP)
    
    Yuting Wang.pdf
- 15:00 → 18:10
  Thursday afternoon
  
  Join Zoom Meeting
  https://us06web.zoom.us/j/86477803363?pwd=SDlsSVhRZDRKNWRoQW82VXR6cHBkQT09
  Meeting ID: 864 7780 3363
  Passcode: 969597
  
  Conveners: Demin ZHOU (KEK), Takuya ISHIBASHI (KEK)
  - 15:00
    
    Impedance modeling for SuperKEKB 30m
    
    There is a follow-up correction to the old results from T. Ishibashi. See the skb_imp_follow1 file for further details.
    
    Speaker: Takuya ISHIBASHI (KEK)
    
    skb_imp_final.pdf
    
    skb_imp_follow1.pdf
  - 15:30
    
    -1 mode instability at SuperKEKB LER 30m
    
    Speaker: Prof. Kazuhito Ohmi (KEK)
    
    -1modeInstability_ohmi.pdf
  - 16:00
    
    Development and operation experience of collimators at SuperKEKB 30m
    
    Speaker: Shinji Terui (KEK)
    
    impedance workshop(collimator).pdf
  - 16:30
    
    Break 10m
  - 17:10
    
    Optimization of Belle II background and its impact on collimator settings 30m
    
    Speaker: Dr Andrii Natochii ( University of Hawaii)
    
    KEK-Impedance_Workshop_NATOCHII_v2.pdf
  - 17:40
    
    Methods and results of bunch length measurements at SuperKEKB (Canceled) 30m
    
    Speaker: Dr Gaku Mitsuka (KEK)
Friday, 16 December
- Thu, 15 Dec
- Fri, 16 Dec
- 09:00 → 12:30
  Friday morning
  
  Join Zoom Meeting
  https://us06web.zoom.us/j/84960326327?pwd=TXE4ejBoM3F1YnlxY0t2T0ljVHAwZz09
  Meeting ID: 849 6032 6327
  Passcode: 554874
  
  Conveners: Alexei Blednykh (BNL), Na Wang (IHEP)
  - 09:00
    
    Impedance computations and beam-based measurements: A problem of discrepancy 30m
    
    Speaker: Dr Victor Smalyuk (BNL)
    
    Smaluk - Impedance computations and beam-based measurements.pdf
  - 09:30
    
    Beam Induced Heating Analysis for the EIC Vacuum Components 30m
    
    Speaker: Dr Medani Sangroula (BNL)
    
    MSangroula_SKEKB_MiniWorkshop_Dec_2022.pdf
  - 10:00
    
    A cross-check of wakefield simulations by GdfidL and ECHO3D codes 30m
    
    Speaker: Dr Aamna Khan (BNL)
    
    Aamna_KEK.pdf
  - 10:30
    
    Break 10m
  - 10:40
    
    Coupled-bunch instability driven by resistive wall impedance at SuperKEKB main rings 30m
    
    Speaker: Demin ZHOU (KEK)
    
    20221215_TCBI_SKB.pdf
  - 11:10
    
    Fokker-Planck analysis of transverse collective instabilities in electron storage rings (Canceled) 30m
    
    Speaker: Dr Ryan Lindberg (ANL)
- 15:00 → 18:20
  Friday afternoon
  
  Join Zoom Meeting
  https://us06web.zoom.us/j/84960326327?pwd=TXE4ejBoM3F1YnlxY0t2T0ljVHAwZz09
  Meeting ID: 849 6032 6327
  Passcode: 554874
  
  Convener: Mauro Migliorati (Univ. Roma1)
  - 15:00
    
    Interplay of beam-beam and impedance effects 30m
    
    Speaker: Dr Yuan Zhang (IHEP)
    
    2022-12-kek-collective-zhangyuan.pdf
  - 15:30
    
    Impedance modeling and related effects at CEPC 30m
    
    Speaker: Dr Na Wang (IHEP)
    
    Impedance_Workshop_Collective_WangNa.pdf
  - 16:00
    
    FCC-ee collective effects 30m
    
    Speaker: Emanuela Carideo (Univ. Roma1 and CERN)
    
    16_12_22_Emanuela_Carideo.pdf
  - 16:30
    
    Break 10m
  - 16:40
    
    Resistive wall impedance with arbitrary cross section 30m
    
    Speaker: Ali Rajabi (DESY)
    
    Ali_Presentation_VACI_SuperKEKB.pdf
  - 17:10
    
    Collective Effects at the ESRF 30m
    
    Speaker: Lee Carver (ESRF)
    
    CollectiveEffects_at_ESRF.pdf
  - 17:40
    
    Resistive wall impedance calculations using neural network method (Canceled) 30m
    
    Speaker: Dr Kazuhiro Fujita (SIT (Japan))
  - 18:10
    
    Close remark 10m