Luke Fry - Magnetic Sensitivity Database CM34

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Magnetically Sensitive Components

Luke Fry

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Luke Fry - Magnetic Sensitivity Database CM34

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Goals

• Comprehensive Inventory of Components• Gather Information • Categorise & Locate Components• Identify Components/Systems at Risk• Prioritise Actions to be Taken

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Luke Fry - Magnetic Sensitivity Database CM34

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Database

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Item No. Object Location System System Owner

Sensitive Components (Max in Air [Gauss])

Magnetic Mass Risk Level Notes Installed

S4 Switch Board D1 West Wall General Power Ian Mullacrane None Should be OK in this location Yes

S11D16 Circuit Breakers X4 North Wall General Power Ian Mullacrane None Should be OK in this location Yes

S18D4 PSU Distribution Box North Wall General Power Ian Mullacrane None Should be OK in this location Yes

S21 MCB's North Wall General Power Ian Mullacrane At Risk

All that will be affected will be replaced by Redspot fuses were possible Yes

S26Power Isolation Box North Wall Mezz General Power Ian Mullacrane Remove Obsolete Yes

S27

Emergency Lighting Contactor North Wall Mezz General Power Ian Mullacrane Remove Obsolete Yes

S32

North Mezz Extension Distribution Board North Wall Mezz General Power Ian Mullacrane At Risk Change for Redspot Yes

S33Distribution Board South Wall Mezz General Power Ian Mullacrane At Risk Change for Redspot Yes

S50 DSA MCB D11South East Corner General Power Ian Mullacrane None Should be OK in this location Yes

S55D5 Distribution Board

South East Corner General Power Ian Mullacrane None Should be OK in this location Yes

S75KLIXON Junction Box 1 & 2 Trench General Power Ian Mullacrane Not sure Not my kit Yes

S87D10 Board and Isolator Trench General Power Ian Mullacrane At Risk Is the trench area a problem?? Yes

L1 Sub Station 25 North Wall General Power Ian Mullacrane At Risk Extra Sheilding YesL13 HV Rack South Wall General Power Ian Mullacrane At Risk Relocate Yes

Luke Fry - Magnetic Sensitivity Database CM34

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3D Modelling

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Added small components into model

Overlay with field plots to identify components at risk

Luke Fry - Magnetic Sensitivity Database CM34

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So Far?

• Highlighted some key issues to be addressed– PPS– Fire Safety– Large ferrous masses unaccounted for in model– MCB’s– Small electronic components

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Next Steps

• Complete the Database• System Owners to Research the Sensitivity of

their Components• More comprehensive breakdown of systems

EMR, KL, cKOV, RFCC, TOF’s, SS

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Adding Information• http://micewww.pp.rl.ac.uk/projects/magnetic-shielding/documents

• http://micewww.pp.rl.ac.uk/documents/47 • 1m x 500mm Helmholtz Coils at KIT (up to 200G) – Vishal Francis• AFC in R9

• Add directly to the Database and upload to micemine with updated front sheet and issue number

• Email information to luke.fry@stfc.ac.uk

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