SPPC/CEPC lattice design and beam dynamics study

2017 ◽  
Vol 32 (34) ◽  
pp. 1746005 ◽  
Author(s):  
Feng Su ◽  
Jie Gao ◽  
Yukai Chen ◽  
Jingyu Tang ◽  
Yiwei Wang ◽  
...  
Keyword(s):  
Beam Dynamics ◽  
Parameter Choice ◽  
Proton Proton ◽  
Double Ring ◽  
Lattice Design ◽  
Dynamic Aperture

In this paper, we introduced the parameter choice and the first version lattice design for a 61 km and 100-km Super Proton–Proton Collider (SPPC). We started the lattice design and the beam dynamics study from last year and showed the preliminary dynamic aperture result of these two SPPC lattice versions. We also showed the layout, the lattice design and the dynamic aperture study of a CEPC partial double ring, an advanced partial double ring and a fully partial double ring schemes.

CEPC partial double ring lattice design and SPPC lattice design

2016 ◽  
Vol 31 (33) ◽  
pp. 1644017 ◽  
Author(s):  
Feng Su ◽  
Jie Gao ◽  
Dou Wang ◽  
Yiwei Wang ◽  
Jingyu Tang ◽  
...  
Keyword(s):  
High Luminosity ◽  
Proton Proton ◽  
Baseline Design ◽  
Lower Power ◽  
Single Beam ◽  
Double Ring ◽  
Lattice Design ◽  
Beam Pipe ◽  
Electron Positron ◽  
Dynamic Aperture

In this paper, we introduce the layout and lattice design of Circular-Electron-Positron-Collider (CEPC) partial double ring scheme and the lattice design of Super-Proton-Proton-Collider (SPPC). The baseline design of CEPC is a single beam-pipe electron positron collider, which has to adopt pretzel orbit scheme and it is not suitable to serve as a high luminosity [Formula: see text] factory. If we choose partial double ring scheme, we can get a higher luminosity with lower power and be suitable to serve as a high luminosity [Formula: see text] factory. In this paper, we discuss the details of CEPC partial double ring lattice design and show the dynamic aperture study and optimization. We also show the first version of SPPC lattice although it needs lots of work to do and to be optimized.

100 km CEPC parameters and lattice design

2017 ◽  
Vol 32 (34) ◽  
pp. 1746006 ◽  
Author(s):  
Dou Wang ◽  
Jie Gao ◽  
Chenghui Yu ◽  
Yuan Zhang ◽  
Yiwei Wang ◽  
...  
Keyword(s):  
Calculation Method ◽  
Beam Power ◽  
Parameter Choice ◽  
Lattice Design ◽  
Consistent Calculation ◽  
Dynamic Aperture

In this paper, a consistent calculation method for the CEPC parameter choice with a crab waist scheme is reported. A crosscheck of luminosity with beam–beam simulations has been done. With this new scheme, a higher Higgs luminosity (+[Formula: see text]170%) can be reached while keeping Pre-CDR beam power or the beam power (19 MW) can be reduced while keeping the same Pre-CDR luminosity. CEPC is compatible with W and Z experiment. The luminosity for Z is at the level of [Formula: see text]. Requirement for energy acceptance of Higgs has been reduced to 1.5% by enlarging the ring to 100 km. The arc optics and the Final Focus System (FFS) with crab sextupoles have been designed, and also some primary Dynamic Aperture (DA) results were introduced.

Design and beam dynamics of the CEPC booster

2020 ◽  
Vol 35 (15n16) ◽  
pp. 2041007
Author(s):  
Dou Wang ◽  
Chenghui Yu ◽  
Xiaohao Cui ◽  
Daheng Ji ◽  
Yudong Liu ◽  
...  
Keyword(s):  
Specific Energy ◽  
Beam Energy ◽  
Beam Dynamics ◽  
Modes Of Operation ◽  
Injection Speed ◽  
Dynamic Aperture ◽  
Positron Beams

The CEPC booster needs to provide electron and positron beams to the collider at different energy with required injection speed. A 10 GeV linac is adopted as the injector for CDR. Then the beam energy is accelerated to specific energy according to three modes of operation of the CEPC collider ring ([Formula: see text], [Formula: see text] and [Formula: see text]). The geometry of the booster is designed carefully in order to share the same tunnel with the collider. The design status of the booster with the CDR lattice including parameters, optics and dynamic aperture is discussed in this paper.

CEPC Partial Double Ring Lattice Design and SPPC Lattice Design

2017 ◽  
pp. 189-207 ◽  
Author(s):  
Feng Su ◽  
Jie Gao ◽  
Dou Wang ◽  
Yiwei Wang ◽  
Jingyu Tang ◽  
...  
Keyword(s):  
Double Ring ◽  
Lattice Design

Lattice design for the CEPC double ring scheme

2018 ◽  
Vol 33 (02) ◽  
pp. 1840001 ◽  
Author(s):  
Yiwei Wang ◽  
Feng Su ◽  
Sha Bai ◽  
Yuan Zhang ◽  
Tianjian Bian ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Baseline Design ◽  
Alternative Design ◽  
Double Ring ◽  
Lattice Design ◽  
Electron Positron ◽  
Scaling Down

A future Circular Electron Positron Collider (CEPC) has been proposed by China with the main goal of studying the Higgs boson. Its baseline design, chosen on the basis of its performance, is a double ring scheme; an alternative design is a partial double ring scheme which reduces the budget while maintaining an adequate performance. This paper will present the collider ring lattice design for the double ring scheme. The CEPC will also work as a W and a Z factory. For the W and Z modes, except in the RF region, compatible lattices were obtained by scaling down the magnet strength with energy.

scholarly journals Machine Learning Applied to the Analysis of Nonlinear Beam Dynamics Simulations for the CERN Large Hadron Collider and Its Luminosity Upgrade

Information ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 53
Author(s):  
Massimo Giovannozzi ◽  
Ewen Maclean ◽  
Carlo Emilio Montanari ◽  
Gianluca Valentino ◽  
Frederik F. Van der Veken
Keyword(s):  
Machine Learning ◽  
Large Hadron Collider ◽  
Performance Optimization ◽  
Hadron Collider ◽  
High Energy ◽  
Beam Dynamics ◽  
Machine Learning Techniques ◽  
Nonlinear Beam ◽  
Dynamic Aperture ◽  
Advanced Analysis

A Machine Learning approach to scientific problems has been in use in Science and Engineering for decades. High-energy physics provided a natural domain of application of Machine Learning, profiting from these powerful tools for the advanced analysis of data from particle colliders. However, Machine Learning has been applied to Accelerator Physics only recently, with several laboratories worldwide deploying intense efforts in this domain. At CERN, Machine Learning techniques have been applied to beam dynamics studies related to the Large Hadron Collider and its luminosity upgrade, in domains including beam measurements and machine performance optimization. In this paper, the recent applications of Machine Learning to the analyses of numerical simulations of nonlinear beam dynamics are presented and discussed in detail. The key concept of dynamic aperture provides a number of topics that have been selected to probe Machine Learning. Indeed, the research presented here aims to devise efficient algorithms to identify outliers and to improve the quality of the fitted models expressing the time evolution of the dynamic aperture.

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