181 citations · 435 across the 25 of their papers we have counts for
20 papers · 1 filter
Interaction of degenerate higher order modes in periodic SRF accelerating structures
Vyacheslav Yakovlev, Sergey Belomestnykh, Timergali Khabiboulline +1
The paper considers the effect of degenerate higher-order mode (HOM) interaction, which may lead to the formation of trapped modes with high shunt impedance. Methods for eliminatin…
HELEN: Traveling Wave SRF Linear Collider Higgs Factory
S. Belomestnykh, P. C. Bhat, A. Grassellino +7
Traveling wave SRF accelerating structures offer several advantages over the traditional standing wave structures: substantially lower and lower , ratios o…
RF Accelerator Technology R&D: Report of AF7-rf Topical Group to Snowmass 2021
Sergey Belomestnykh, Emilio A. Nanni, Hans Weise +18
Accelerator radio frequency (RF) technology has been and remains critical for modern high energy physics (HEP) experiments based on particle accelerators. Tremendous progress in ad…
U.S. National Accelerator R\&D Program on Future Colliders
P. C. Bhat, S. Belomestnykh, A. Bross +13
Future colliders are an essential component of a strategic vision for particle physics. Conceptual studies and technical developments for several exciting future collider options a…
First experience with He conditioning of an SRF photoinjector
Irina Petrushina, Yichao Jing, Vladimir N. Litvinenko +8
The recent achievements in the performance of superconducting RF (SRF) photoinjectors have opened a new era in the development of the reliable high-brightness CW electron sources.…
Key directions for research and development of superconducting radio frequency cavities
S. Belomestnykh, S. Posen, D. Bafia +53
Radio frequency superconductivity is a cornerstone technology for many future HEP particle accelerators and experiments from colliders to proton drivers for neutrino facilities to…
Plasma Processing for In-Situ Field Emission Mitigation of Superconducting Radiofrequency (SRF) Cryomodules
M. Martinello, P. Berrutti, B. Giaccone +14
Field emission (FE) is one of the main limiting factors of superconducting radio-frequency (SRF) cavities operating in accelerators and it occurs whenever contaminants, like dust,…
Higgs-Energy LEptoN (HELEN) Collider based on advanced superconducting radio frequency technology
S. Belomestnykh, P. C. Bhat, A. Grassellino +15
This Snowmass 2021 contributed paper discusses a Higgs-Energy LEptoN (HELEN) linear collider based on advances superconducting radio frequency technology. The proposed col…
C Demonstration Research and Development Plan
Emilio A. Nanni, Martin Breidenbach, Caterina Vernieri +46
C is an opportunity to realize an ee collider for the study of the Higgs boson at GeV, with a well defined upgrade path to 550 GeV while staying on the…
The International Linear Collider: Report to Snowmass 2021
Alexander Aryshev, Ties Behnke, Mikael Berggren +508
The International Linear Collider (ILC) is on the table now as a new global energy-frontier accelerator laboratory taking data in the 2030s. The ILC addresses key questions for our…
Demonstration of Planar Ultrananocrystalline Diamond Field Emission Source Operating in SRF Injector at 2 Kelvin
Sergey V. Baryshev, Erdong Wang, Chunguang Jing +9
Reported here is the first demonstration of electron beam generation in an SRF TESLA 1.3 GHz gun equipped with field emission cathode when operated at 2 Kelvin. The cathode is subm…
Impact of high Q on ILC250 upgrade for record luminosities and path toward ILC380
H. Padamsee, A. Grassellino, S. Belomestnykh +1
In this paper, we address the possibility of upgrading the ILC250 luminosity to , so that with the polarization feature, the effective luminosity will be $2.0 \…
Design and Vertical Tests of SPS-series Double-Quarter Wave (DQW) Cavity Prototypes for the HL-LHC Crab Cavity System
S. Verdú-Andrés, K. Artoos, S. Belomestnykh +22
Crab crossing is essential for high-luminosity colliders. The High Luminosity Large Hadron Collider (HL-LHC) will equip one of its Interaction Points (IP1) with Double-Quarter Wave…
Operation of the 56 MHz Superconducting RF Cavity in RHIC with Higher Order Mode Damper
Q. Wu, S. Belomestnykh, I. Ben-Zvi +6
A 56 MHz superconducting RF cavity was designed and installed in the Relativistic Heavy Ion Collider (RHIC). It is the first superconducting quarter wave resonator (QWR) operating…
Design and test of 704 MHz and 2.1 GHz normal conducting cavities for Low Energy RHIC electron Cooler
Binping Xiao, S. Belomestnykh, J. M. Brennan +8
The Low Energy RHIC electron Cooler (LEReC) is currently under commissioning at BNL to improve RHIC luminosity for heavy ion beam energies below 10 GeV/nucleon. The linac of LEReC…
Design of a High-bunch-charge 112-MHz Superconducting RF Photoemission Electron Source
T. Xin, J. C. Brutus, Sergey A. Belomestnykh +19
High-bunch-charge photoemission electron-sources operating in a continuous wave (CW) mode are required for many advanced applications of particle accelerators, such as electron coo…
High-gradient High-charge CW Superconducting RF gun with CsK2Sb photocathode
Igor Pinayev, Vladimir N. Litvinenko, Joseph Tuozzolo +40
High-gradient CW photo-injectors operating at high accelerating gradients promise to revolutionize many sciences and applications. They can establish the basis for super-bright mon…
Design, prototyping and testing of a compact superconducting double quarter wave crab cavity
Binping Xiao, Luís Alberty, Sergey Belomestnykh +10
A novel design of superconducting Crab Cavity was proposed and designed at Brookhaven National Laboratory. The new cavity shape is a Double Quarter Wave or DQWCC. After fabrication…
eRHIC Design Study: An Electron-Ion Collider at BNL
E. C. Aschenauer, M. D. Baker, A. Bazilevsky +44
This document presents BNL's plan for an electron-ion collider, eRHIC, a major new research tool that builds on the existing RHIC facility to advance the long-term vision for Nucle…
Photocathode Behavior During High Current Running in the Cornell ERL Photoinjector
Luca Cultrera, Jared Maxson, Ivan Bazarov +18
The Cornell University Energy Recovery Linac (ERL) photoinjector has recently demonstrated operation at 20 mA for approximately 8 hours, utilizing a multialkali photocathode deposi…