Detector Powering in the 21st Century Why stay stuck with the Good old 20th Century methods? | Zendy

S. Dhawan | Zendy; R.L. Sumner | Zendy

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Detector Powering in the 21st Century Why stay stuck with the Good old 20th Century methods?

Author(s) -

S. Dhawan,

R.L. Sumner

Publication year - 2012

Publication title -

physics procedia

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.26

H-Index - 61

ISSN - 1875-3892

DOI - 10.1016/j.phpro.2012.02.353

Subject(s) - detector , electrical engineering , converters , inductor , physics , voltage , resistor , electrical conductor , radiation hardening , power (physics) , large hadron collider , high voltage , capacitor , nuclear physics , engineering , quantum mechanics

Future Collider Physics Detectors are envisioned with large granularity but we have a power delivery problem unless we fill a large fraction of the detector volume with copper conductors. LHC detector electronics is powered by transporting direct current over distances of 30 to 150 meters. This is how Thomas Alva Edison powered his light bulb. For example, CMS ECAL uses 50 kiloamps at 2.5 volts, supplied over a cable set with a transmission efficiency of only 30%. The transmission loss becomes waste heat in the detector that has to be removed. We have been exploring methods to transmit the DC power at higher voltage (low current), reducing to the final low voltage (high current) using DC-DC converters. These converters must operate in high magnetic fields and high radiation levels. This requires rad hard components and non-magnetic (air core) inductors

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