Publications (21)
Snowmass'21 Accelerator Frontier Report
S. Gourlay, T. Raubenheimer, V. Shiltsev +35
In 2020-2022, extensive discussions and deliberations have taken place in corresponding topical working groups of the Snowmass Accelerator Frontier (AF) and in numerous joint meeti…
Intensity issues and machine protection of the HE-LHC
R. Assmann
The HE-LHC study investigates the possibilities for upgrading the beam energy of the Large Hadron Collider CERN from 7 TeV to 16.5 TeV. This paper presents a preliminary investigat…
Report of Snowmass 21 Accelerator Frontier Topical Group 6 on Advanced Accelerators
C. Geddes, M. Hogan, P. Musumeci +1
The Snowmass 2021 Accelerator Frontier topical group \# 6 on Advanced Accelerator Concepts, covers new R\&D concepts for particle acceleration, generation, and focusing. Based on c…
Advanced Accelerator Concepts
M. Ferrario, R. Assmann
Recent years have seen spectacular progress in the development of innovative acceleration methods that are not based on traditional RF accelerating structures. These novel developm…
Beam Dynamics and Tolerance Studies of the THz-driven Electron Linac for the AXSIS Experiment
K. Galaydych, R. Assmann, U. Dorda +3
A dielectric-loaded linac powered by THz-pulses is one of the key parts of the "Attosecond X-ray Science: Imaging and Spectroscopy" (AXSIS) project at DESY, Hamburg. As in conventi…
Status and Objectives of the Dedicated Accelerator R&D Facility "SINBAD" at DESY
U. Dorda, B. Marchetti, J. Zhu +12
We present a status update on the dedicated R\&D facility SINBAD which is currently under construction at DESY. The facility will host multiple independent experiments on the accel…
Performance analysis of the prototype THz-driven electron gun for the AXSIS project
G. Vashchenko, R. Assmann, U. Dorda +9
The AXSIS project (Attosecond X-ray Science: Imaging and Spectroscopy) aims to develop a THz-driven compact X-ray source for applications e.g. in chemistry and biology by using ult…
Predicting the transverse emittance of space charge dominated beams using the phase advance scan technique and a fully connected neural network
F. Mayet, M. Hachmann, K. Floettmann +5
The transverse emittance of a charged particle beam is an important figure of merit for many accelerator applications, such as ultra-fast electron diffraction, free electron lasers…
The UA9 experimental layout
W. Scandale, G. Arduini, R. Assmann +58
The UA9 experimental equipment was installed in the CERN-SPS in March '09 with the aim of investigating crystal assisted collimation in coasting mode. Its basic layout comprises si…
Summary of strong-field QED Workshop
M. Altarelli, R. Assmann, F. Burkart +7
A workshop, "Probing strong-field QED in electron--photon interactions", was held in DESY, Hamburg in August 2018, gathering together experts from around the world in this area of…
LEP3: A High-Luminosity e+e- Higgs and ElectroweakFactory in the LHC Tunnel
C. Anastopoulos, R. Assmann, A. Ball +25
As stated in the 2019 European Strategy for Particle Physics (ESPP), it is of the utmost importance that the HL-LHC upgrade of the accelerator and the experiments be successfully c…
Channeling and Volume Reflection Based Crystal Collimation of Tevatron Circulating Beam Halo (T-980)
V. Shiltsev, G. Annala, A. Drozhdin +15
The T980 crystal collimation experiment is underway at the Tevatron to determine if this technique could increase 980 GeV beam-halo collimation efficiency at high-energy hadron col…
Proton-driven plasma wakefield acceleration: a path to the future of high-energy particle physics
AWAKE Collaboration, R. Assmann, R. Bingham +47
New acceleration technology is mandatory for the future elucidation of fundamental particles and their interactions. A promising approach is to exploit the properties of plasmas. P…
Development of hollow electron beams for proton and ion collimation
G. Stancari, A. I. Drozhdin, G. Kuznetsov +6
Magnetically confined hollow electron beams for controlled halo removal in high-energy colliders such as the Tevatron or the LHC may extend traditional collimation systems beyond t…
Chirp mitigation of plasma-accelerated beams using a modulated plasma density
R. Brinkmann, N. Delbos, I. Dornmair +13
Plasma-based accelerators offer the possibility to drive future compact light sources and high-energy physics applications. Achieving good beam quality, especially a small beam ene…
European Strategy for Particle Physics -- Accelerator R&D Roadmap
C. Adolphsen, D. Angal-Kalinin, T. Arndt +133
The 2020 update of the European Strategy for Particle Physics emphasised the importance of an intensified and well-coordinated programme of accelerator R&D, supporting the design a…
Radiation damage and thermal shock response of carbon-fiber-reinforced materials to intense high-energy proton beams
N. Simos, Z. Zhong, S. Ghose +14
A comprehensive study on the effects of energetic protons on carbon-fiber composites and compounds under consideration for use as low-Z pion production targets in future high-power…
Controlling injection using a magnetic field to produce sub-femtosecond bunches in the laser wakefield accelerator
Q. Zhao, S. M. Weng, M. Chen +5
It is shown that electron injection into a laser-driven plasma bubble can be manipulated by applying an external magnetic field in the presence of a plasma density gradient. The do…
AWAKE, The Advanced Proton Driven Plasma Wakefield Acceleration Experiment at CERN
E. Gschwendtner, E. Adli, L. Amorim +88
The Advanced Proton Driven Plasma Wakefield Acceleration Experiment (AWAKE) aims at studying plasma wakefield generation and electron acceleration driven by proton bunches. It is a…
Path to AWAKE: Evolution of the concept
A. Caldwell, E. Adli, L. Amorim +118
This report describes the conceptual steps in reaching the design of the AWAKE experiment currently under construction at CERN. We start with an introduction to plasma wakefield ac…
Calibration of centre-of-mass energies at LEP 2 for a precise measurement of the W boson mass
LEP Energy Working Group, R. Assmann
The determination of the centre-of-mass energies for all LEP 2 running is presented. Accurate knowledge of these energies is of primary importance to set the absolute energy scale…