Abstract
The High Luminosity Large Hadron Collider (HL-LHC) and the LHC-Injection Upgrade (LIU) projects at CERN are upgrading the whole CERN accelerators chain to increase beam brightness and intensity. In this scenario, some critical machine components have to be redesigned and rebuilt. Due to the increase in beam intensity, minimizing the electromagnetic interaction between the beam and devices is a crucial design task. Indeed, these interactions could lead to beam instabilities and excessive thermo-mechanical loadings in the device. In this context, this paper presents an example of multi-physics study to investigate the impedance related thermal effects. The analysis is performed on the conceptual design of the new proton synchrotron (PS) internal dump.
Highlights
In the framework of the project LHC-Injection Upgrade (LIU) [1], all the LHC injectors chain is being upgraded in order to operate with beams of increased intensity and brightness
This paper presents an example of multi-physics study to investigate the impedance related thermal effects
The paper reports on the analysis done on the impedance heating effects for the new design of the proton synchrotron dump
Summary
In the framework of the project LIU [1], all the LHC injectors chain is being upgraded in order to operate with beams of increased intensity and brightness This is critical for those accelerator components that have to interact directly with the beam as collimators, scraper, absorbers or dumps. This class of devices is known with the name of Beam Intecepting Devices (BID). Their functionality can be deeply affected by changes in beam intensity If this parameter increases, detailed and careful studies should be done to assess if the BID will continue to work as expected in the new scenario.
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