Beam Induced Heating Analysis Update for the EIC Vacuum Chamber Components

Technical Report · Fri Sep 01 00:00:00 EDT 2023

DOI:https://doi.org/10.2172/2203271· OSTI ID:2203271

Sangroula, Medani ^[1]; Bellon, J. ^[1]; Blaskiewicz, M. ^[1]; Blednykh, A. ^[1]; Braunius, P. ^[1]; Gallagher, B. ^[1]; Gassner, D. ^[1]; Hamdi, K. ^[1]; Hetzel, C. ^[1]; Holmes, D. ^[1]; Micolon, F. ^[1]; Liu, C. ^[1]; Verdu-Andres, S. ^[1]

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1. Brookhaven National Laboratory (BNL), Upton, NY (United States)

One of the challenges of designing the Electron-Ion Col lider (EIC) is to mitigate beam-induced heating due to the intense electron and hadron beams. Heating of the ESR vac uum chamber components is mainly due to beam-induced resistive wall (RW) losses and synchrotron radiation. For the HSR heating is mainly due to large radial offsets and heat conduction from room temperature to cryogenic tem perature for cryo-components. In this paper, we provide an update on the beam-induced heating and thermal analysis of some critical ESR vacuum chamber components, such as the ESR Large Angle Bremhustraulung Monitor (LABM). We also provide a similar update for critical HSR vacuum com ponents, including the cryo-cooled BPM button assembly, beam screen, abort kicker, and polarimeter. To perform the thermal analyses, the resistive wall loss on individual compo nents is calculated with CST and the synchrotron radiation (if exists) is evaluated using SynRad. These losses, along with realistic boundary conditions are then fed to ANSYS to determine the temperature distribution.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: SC0012704
• OSTI ID: 2203271
• Report Number(s): BNL-224903-2023-TECH; EIC-ADD-TN-075; TRN: US2406014
• Country of Publication: United States
• Language: English

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