18.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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- Institute for High Energy PhysicsES2.6k papers
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- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.4k papers
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20 papers · 2 filters
Measurements of a 2.1 MeV H beam with an Allison scanner
C. Richard, J. -P. Carneiro, B. Hanna +4
Transverse 2D phase space distribution of a 2.1 MeV, 5 mA H beam is measured at the PIPIT test accelerator at Fermilab with an Allison scanner. The paper describes the design,…
Accelerator Vacuum Windows: A Review of Past Research and a Strategy for the Development of a New Design for Improved Safety and Longevity for Particle Accelerators
C. R. Ader, M. Alvarez, J. S. Batko +3
Vacuum window research continues at Fermilab and this paper will examine cost effective, consistent designs which can have a huge impact on accelerator laboratories in terms of saf…
Experience with Long-pulse Operation of the PIP2IT Warm Front End
A. Shemyakin, J. -P. Carneiro, A. Chen +10
The warm front end of the PIP2IT accelerator, assem-bled and commissioned at Fermilab, consists of a 15 mA DC, 30 keV H- ion source, a 2 m long Low Energy Beam Transport (LEBT) lin…
Test Results of PIP2IT MEBT Vacuum Protection System
A. Chen, R. Andrews, C. Baffes +4
The central part of PIP-II program of upgrades pro-posed for the Fermilab injection complex is an 800 MeV, 2 mA, CW-compatible SRF linac. Acceleration in super-conducting cavities…
Unconventional Ideas for Ionization Cooling of Muons
T. L. Hart, J. G. Acosta, L. M. Cremaldi +5
Small muon beams increase the luminosity of a muon collider. Reducing the momentum and position spreads of muons reduces emittance and leads to small, cool beams. Ionization coolin…
Betatron frequency and the Poincare rotation number
Sergei Nagaitsev, Timofey Zolkin
Symplectic maps are routinely used to describe single-particle dynamics in circular accelerators. In the case of a linear accelerator map, the rotation number (the betatron frequen…
Fields and Characteristic Impedances of Dipole and Quadrupole Cylindrical Stripline Kickers
Tanaji Sen, Yisheng Tu, Jean-Francois Ostiguy
We present semi-analytical methods for calculating the electromagnetic field in dipole and quadrupole stripline kickers with curved plates of infinitesimal thickness. Two different…
Transverse Microwave Convective Instability at Transition Crossing
Alexey Burov
An analytical model of transverse convective instability of a bunch at transition crossing is presented for the microwave case, when the wake is sufficiently short compared with th…
Interferometric optical signature of electron microbunching in laser-driven plasma accelerators
A. H. Lumpkin, M. LaBerge, D. W. Rule +10
We report observations of coherent optical transition radiation interferometry (COTRI) patterns generated by microbunched ~200-MeV electrons as they emerge from a laser-plasma acce…
Tailoring of an Electron-Bunch Current Distribution via Space-to-Time Mapping of a Transversely-Shaped Photoemission-Laser Pulse
A. Halavanau, Q. Gao, M. Conde +4
Temporally-shaped electron bunches at ultrafast time scales are foreseen to support an array of applications including the development of small-footprint accelerator-based coherent…
Ultra-Low Surface Resistance via Vacuum Heat Treatment of Superconducting Radiofrequency Cavities
S. Posen, A. Romanenko, A. Grassellino +2
We report on an effort to improve the performance of superconducting radiofrequency cavities by the use of heat treatment in a temperature range sufficient to dissociate the natura…
Finding beam loss locations in a linac with oscillating dipole correctors
Alexander Shemyakin
The paper proposes a method of finding the beam loss locations in a linac. If the beam is scraped at an aperture limitation, moving its centroid with two dipole correctors located…
Development of the FASPAX IC for a high burst rate X-ray imager with very high dynamic range () capability in small pixels
Tom Zimmerman, Sachin Junnarkar
The technique of current splitting is presented as part of an integrated circuit development for an X-ray imager. This method enables integration of charge signals of unprecedented…
Energy and Flavor Discrimination Using Precision Time Structure in On-Axis Neutrino Beams
Evan Angelico, Jonathan Eisch, Andrey Elagin +3
We propose to use a higher-frequency RF bunch structure for the primary proton beam on target and precision timing to select different energy and flavor spectra from a wide-band ne…
Record fast-cycling accelerator magnet based on high temperature superconductors
Henryk Piekarz, Steven Hays, Jamie Blowers +2
Four decades ago development of high-current superconducting NbTi wire cables revolutionized the magnet technology for energy frontier accelerators, such as Tevatron, RHIC and LHC.…
Rapid-Cycling Synchrotron for Multi-Megawatt Proton Facility at Fermilab
Jeffrey Eldred, Valeri Lebedev, Alexander Valishev
The Fermilab accelerator complex delivers intense high-energy proton beams to a variety of fixed-target scientific programs, including a flagship long-baseline neutrino program. Wi…
Calibration Technique for Rotating PCB Coil Magnetic Field Sensors
Joseph DiMarco, Giordana Severino, Pasquale Arpaia
A high-accuracy calibration of inductive coil sensors based on Printed Circuit Board (PCB), commonly used in rotating coil field measurements of particle accelerator magnets, is pr…
Low RF power plasma ignition and detection for in-situ cleaning of 1.3 GHz 9-cell cavities
P. Berrutti, B. Giaccone, M. Martinello +7
Superconducting Radio Frequency (SRF) cavities performance preservation is crucial, from vertical test to accelerator operation. Field Emission (FE) is still one of the performance…
Reduction of coherent betatron oscillations in a muon g-2 storage ring experiment using RF fields
On Kim, SeungPyo Chang, Jihoon Choi +15
This work demonstrates that two systematic errors, coherent betatron oscillations (CBO) and muon losses can be reduced through application of radio frequency (RF) electric fields,…
Achievement of Ultra-High Quality Factor in Prototype Cryomodule for LCLS-II
G. Wu, A. Grassellino, E. Harms +4
Quality factor is a primary cost driver for high energy, continuous wave (CW) SRF linacs like the LCLS-II X-ray free electron laser currently under construction. Taking this into a…