Thermal simulation of the HSR arc BPM Module for EIC

Technical Report · Sun Jan 01 04:00:00 EST 2023

DOI:https://doi.org/10.2172/1969913· OSTI ID:1969913

Micolon, Frederic ^[1]; Gassner, David ^[1]; Hetzel, Charlie ^[1]; Pinayev, Igor ^[1]; Sangroula, Medani ^[1]; Verdú-Andrés, Silvia ^[1]

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

The Electron Ion Collider (EIC) Hadron Storage Ring (HSR) will reuse most of the existing superconducting magnets from the RHIC storage ring. However, the existing stripline beam position monitors (BPM) used for RHIC will not be compatible with the planned EIC hadron beam parameters that include higher intensity, shorter bunches, and some operational scenarios with large radial offsets of the beam in the vacuum chamber. To address these challenges, the existing RHIC stripline BPMs will be shielded, and a new BPM design using button pick-ups and integrated in a new vacuum interconnect/bellows assembly that will be installed adjacent to the existing BPMs. A thermal analysis of the new arc BPM housing and button pick-up design has been conducted to assess the effects caused by beam induced resistive wall heating and signal propagation through the button pick-up cables for several operational scenarios. This report will describe the analysis results to quantify the heat transfer and temperature distribution that can be expected on the new HSR cryogenic arc BPM housings, button pick-ups, and cryo-signal cables.

• 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: 1969913
• Report Number(s): EIC-ADD-TN-050; BNL-224218-2023-TECH
• Country of Publication: United States
• Language: English

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