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With a growing demand for accurate ion beam analysis on a large number of samples, it becomes an issue of how to ensure the quality standards and consistency over hundreds or thousands of samples. In this sense, a virtual assistant that…

During the 2011 run of the LHC there was a significant measured temperature increase in the LHC Injection Kicker Magnets (MKI) during operation with 50ns bunch spacing. This was due to increased beam-induced heating of the magnet due to…

Accelerator Physics · Physics 2012-07-17 Hugo Day , Michael Barnes , Fritz Caspers , Roger Jones , Elias Metral , Benoit Salvant

Chapter 9 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report. The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built. Since opening up a new energy frontier for exploration in…

Accelerator Physics · Physics 2017-06-01 S. Claudet , L. Tavian

Particle therapy is a well established clinical treatment of tumors. More than one hundred particle therapy centers are in operation world wide. The advantage of using hadrons like protons or carbon ions as particles for tumor irradiation…

This paper presents a review of the recent Machine Learning activities carried out on beam measurements performed at the CERN Large Hadron Collider. This paper has been accepted for publication in IEEE Instrumentation and Measurement…

The CMS beam and radiation monitoring subsystem BCM1F (Fast Beam Condition Monitor) consists of 8 individual diamond sensors situated around the beam pipe within the pixel detector volume, for the purpose of fast bunch-by-bunch monitoring…

In this paper, beam diagnostic and monitoring tools developed by the MAX IV Operations Group are discussed. In particular, new beam position monitoring and accelerator tunes visualization software tools, as well as tools that directly…

A huge systematics of femtoscopic measurements have been used over the past 20 years to characterize the system created in heavy ion collisions. These measurements cover two orders of magnitude in energy, and with LHC beams imminent, this…

Nuclear Theory · Physics 2011-08-04 Mike Lisa

In this contribution we discuss how to prepare some possible detectors - only silicon option being considered, for the new era of HEP challenges because the bulk displacement damage in the detector, consequence of irradiation, produces…

Instrumentation and Detectors · Physics 2017-08-23 Ionel Lazanu , Sorina Lazanu

In this note, we briefly review the current lattice of the NLC extraction line which was designed for the nominal NLC beam parameters. Then we describe the beam parameters for the high luminosity option with larger beam disruption parameter…

Accelerator Physics · Physics 2007-05-23 Y. M. Nosochkov , T. O. Raubenheimer

A new horn-shaped electrooptic scanner is described with significantly improved scanning sensitivity over rectangular-shaped devices. In the new device, the shape of the scanner is chosen to follow the trajectory of the beam. An example…

Networking and Internet Architecture · Computer Science 2024-05-12 Jennifer C. Fang , M. J. Kawas , J. Zou , V. Gopalan , T. E. Schlesinger , Daniel D. Stancil

This paper describes two distinct effects observed during the operation of the LHC in 2012: first, the impacts on beam parameter evolution of the end-of-squeeze instabilities encountered in the second half of the 2012 run; and, second, the…

Accelerator Physics · Physics 2014-09-19 Michael Hostettler , Giulia Papotti

One of the most severe limitations in high-intensity particle colliders is the beam-beam interaction, i.e. the perturbation of the beams as they cross the opposing beams. This introduction to beam-beam effects concentrates on a description…

Accelerator Physics · Physics 2016-01-21 W. Herr , T. Pieloni

A second major upgrade of the LHCb experiment is necessary to allow full exploitation of the High Luminosity LHC for flavour physics. The new experiment will operate in Run 5 of the LHC at a luminosity up to $1.5\times…

High Energy Physics - Experiment · Physics 2025-04-01 LHCb Collaboration

The practice of luminosity levelling with an offset beam has been used as a routine operation in the LHC since 2011. This paper will describe how it has been implemented and what has been the operational experience with the system.

Accelerator Physics · Physics 2014-10-15 F. Follin , D. Jacquet

This paper covers recent progress in the design of optics solutions to minimize collective effects such as beam instabilities, intra-beam scattering or space charge in hadron and lepton rings. The necessary steps are reviewed for designing…

Accelerator Physics · Physics 2020-08-27 Y. Papaphilippou , F. Antoniou , H. Bartosik

A wealth of physics results have already been obtained from the LHC, due to the excellent performance of the collider and its experiments. Even more results are expected to be achievable in the phase of the high-luminosity LHC (HL-LHC). It…

High Energy Physics - Experiment · Physics 2021-05-26 Susanne Kuehn

The hard X-ray instruments at the Linac Coherent Light Source are in the design phase for upgrades that will take full advantage of the high repetition rates that will become available with LCLS-II-HE. The current X-ray Correlation…

Accelerator Physics · Physics 2023-08-16 Aashwin Mishra , Nicholas Brennan , Tianyu Huang , Jason Jaquith , Hasan Yavas , Matthew Seaberg

Fermilab is planning the construction of a prototype front end of the Project X linac. The Project X Injector Experiment (PXIE) is expected to accelerate 1 mA cw H- beam up to 30 MeV. Some of the major goals of the project are to test a cw…

Accelerator Physics · Physics 2013-01-30 V. A. Lebedev , A. V. Shemyakin , J. Steimel , M. Wendt , B. M. Hanna , L. R. Prost , V. E. Scarpine

We study the use of large language models (LLMs) for physics instrument design and compare their performance to reinforcement learning (RL). Using only prompting, LLMs are given task constraints and summaries of prior high-scoring designs…

Instrumentation and Detectors · Physics 2026-01-13 Sara Zoccheddu , Shah Rukh Qasim , Patrick Owen , Nicola Serra