Thermal Behavior of RHIC BPM Cryogenic Signal Cables

Cameron, P.; Morvillo, M.

doi:10.2172/1119462

Cited by 4 publications

(3 citation statements)

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“…The heat conduction can be estimated with the thermal conductivity cryogenic integrals and the coaxial cable materials and dimensions from In EIC, the magnet heat shield (50 -80 K) can be used as a heat sink to mitigate this heat leak as was done for RHIC [6]. To place this heat intercept efficiently along the BPM cable, we have aimed to minimize the cryoplant cooling load.…”

Section: Cable Heat Conduction and Placement Of The Heat Interceptmentioning

confidence: 99%

Thermal Engineering of the Cryogenic Beam Position Monitors for the EIC Hadron Storage Ring

Micolon,

Bellon,

Chiechi

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

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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 decommissioned, and a new BPM design using button pick-ups integrated in a new vacuum interconnect/bellows assembly will be installed adjacent to the decommissioned BPMs. A dedicated analysis of the new BPM housing and button pick-up design has been conducted to assess the thermal effects caused by heat conduction, beam induced resistive wall heating and the RF heating from the BPM signal propagation through the cryogenic cables. This paper reports on the thermal design and analysis results to quantify the heat transfer and temperature distribution that can be expected on the new HSR cryogenic BPM.

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Section: Cable Heat Conduction and Placement Of The Heat Interceptmentioning

confidence: 99%

Thermal Engineering of the Cryogenic Beam Position Monitors for the EIC Hadron Storage Ring

Micolon,

Bellon,

Chiechi

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

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show abstract

“…This offset has significant impact upon the minimum and maximum signals which must be accommodated by the feedthroughs, signal cables, and electronics, and hence upon the accuracy and resolution of the position measurement [54]. This offset also greatly increases heating of the cryogenic signal cables by the beam image currents [55]. The maximum nominal deflection is 3.4 cm.…”

Section: Cryostat Assemblymentioning

confidence: 99%

Configuration Manual Polarized Proton Collider at Rhic.

Alekseev¹

2001

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“…There is also the possibility that the Beam Position Monitor signal cables may suffer unacceptably large heat loads, due to resistive heating by the signal current, when the number of bunches becomes large and the bunches are too short [14]. This problem appears to be less serious than beam pipe heating.…”

Section: A4 Cryogenic Beam Pipe and Bpm Signal Cable Heatingmentioning

confidence: 99%

Luminosity Upgrade Options for RHIC

MacKay¹

2001

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Thermal Behavior of RHIC BPM Cryogenic Signal Cables

Cited by 4 publications

References 0 publications

Thermal Engineering of the Cryogenic Beam Position Monitors for the EIC Hadron Storage Ring

Thermal Engineering of the Cryogenic Beam Position Monitors for the EIC Hadron Storage Ring

Configuration Manual Polarized Proton Collider at Rhic.

Luminosity Upgrade Options for RHIC

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