Status and Installation Plan for the Spectrometer Solenoid Magnets

Status and Installation Plan for the Spectrometer

Solenoid Magnets

Steve VirostekLawrence Berkeley National Lab

MICE CM17 @ CERN February 24, 2007

Status & Installation of the Spectrometer Solenoids

Steve Virostek - - - Lawrence Berkeley National Laboratory

MICE Cooling Channel Layout

SpectrometerSolenoid 1

SpectrometerSolenoid 2

Spectrometer Solenoid Overview

•Order for two spectrometer solenoid magnets was placed with Wang NMR by LBNL in June ‘06

•Design review was held by Wang on Sept 6, 2006-Complete design package book provided to LBNL

•Detailed magnet design is complete and fabrication is well under way

•First magnet shipment expected by Sep 07

•Second magnet to follow ~6 weeks later

Spectrometer Solenoid Fabrication Update

•First machined coil former delivered to Wang

•Preparation for coil winding is under way

•First two cryocoolers to arrive at Wang on Feb 28th, two additional to follow two weeks later

•Quench protection assemblies are near complete

•Winding of fiberglass cold mass support bands will begin in early March

•50 A HTC procured, 300 A leads coming next week

•Magnet instrumentation is on order

He Filler Neck

Lead Neck

Cold Mass Support

PMT Iron Shield

Space for Radiation Shield Support Stand

Cooler Neck

Lead Neck

He Gas Pipe

4.2 K Coolers

Condenser Tank

Liquid Pipe

Cold Mass

4K End

60K Intercept

300K End

Cold Mass Support

300 K Support End

60 K Support Intercept

Support Band

4 K Support End

Cold Mass Assembly

Cold Mass with 50 Ton Support System

Passive Quench Protection Space

Center Coil

Match Coil 1

End Coil 1

Match Coil 2

Coil Cover

Liquid Helium Space

490 mm

690 mm

2544 mm

Coil Spacer

Spectrometer Solenoid Cold Mass

End Coil 2

•Single piece 6061-T6 aluminum coil former

•Each layer wet wound using Stycast 2850 FT

•2.5 mil thick fiberglass between winding layers

•Passive quench protection will be provided by a system of diodes & resistors

•Aluminum coil banding will provide hoop force support and ensure coils are tight after cooldown

•Conductor joints are to be lapped by at least 24” to minimize the I2R losses

Design Overview (coil construction)

First Completed Coil Winding Form

Vacuum Leak Check of Coil Winding Form

G-10 Material for Coil Side Insulation

Coil Winding Apparatus

PSPower Supply ±10 V, 300 A

Power Supply ±5 V, ±50 A

50 Amp Leads

300 Amp Leads

A B C D E FG H

Match 1 Match 2 End 1 Center End 2

Quench Diodes

Quench Protection & Power Supply Hookup

Quench Protection Diodes and Resistors

Quench Protection Diodes

Quench Protection Resistors

Quench Protection Assembly Parts

50 Amp High TC Leads

Winding Form for Cold Mass Support Bands

Example of a Cold Mass Support Band

Example of a Quench Protection Assembly

Example of a Cold Mass Support System

•Two 1.5 W PT415’s will cool magnets to 45 K (1st stage) & 3.8 K (2nd stage)

•~0.05 T field @ cooler rotary valve motors (no iron shielding needed)

•Up to three coolers per magnet can be installed and removed without breaking cryostat vacuum

•Four units ordered by IIT – 1st two to arrive Feb 28th, 2nd two in ~2 weeks

Pulse Tube Cryocoolers

PT415 Pulse Tube

Magnet Power Supplies

•Three power supplies of +300 A at ±10 V for the center and two match coils (shared for 2 magnets)

•Four power supplies of ±50 A (may need 2 @ 60 A) at ±5 V for the two end coils (2 per magnet)

•Power supply specification is nearly complete-Resolve issue of whether quick discharge circuit is needed-Address computer interface question-Settle on quantities (testing, operation @ RAL, spares)

•3 month lead time – place order soon after CM17

Updated Schedule Summary

Installation Plan and Issues

•Integration discussions ongoing with RAL

•Module connection to rail system resolved

•Required lifting features being finalized

•Requirements for transfer through door of MICE hall @ RAL established

•Flange sealing options being discussed

•Vacuum pumping requirements defined

•Detailed magnet design is complete

•1st coil former at Wang & ready for winding

•50 A HTC leads at vendor (300 A to follow)

•Two cryocoolers to arrive on Feb 28

•P.S. spec is nearly complete – order ASAP

•Expect 1st magnet complete by Sep 07

•Second magnet to follow ~6 weeks later

Summary

Status and Installation Plan for the Spectrometer Solenoid Magnets

Documents

Transcript of Status and Installation Plan for the Spectrometer Solenoid Magnets

MICE Cooling Channel Magnets: Spectrometer Solenoid Procurement RF Module Coupling Coil Proposal Steve Virostek Lawrence Berkeley National Lab NFMCC 07.

Spectrometer Solenoid Fabrication Update Steve Virostek Lawrence Berkeley National Lab MICE CM23 at ICST, Harbin January 14, 2009.

Magnets Paul E. Reimer 21 June 2008. 2 Paul E. Reimer Magnets First Magnet Dual magnet spectrometer Proposal:SM3 coils and SM12 iron to construct first.

Spectrometer Solenoid Test Plan Workshop: Safety Considerations Steve Virostek - LBNL February 17, 2012.

Spectrometer solenoid quench protection · Prestemon – Pan September 13, 2011 Spectrometer solenoid quench protection Page 2 Outline • Review of protection circuitry • Review

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Spectrometer Solenoid Procurement Update Steve VirostekWing Lau Mike GreenStephanie Yang Lawrence Berkeley National LabOxford Physics MICE Collaboration.

1 Spectrometer Solenoid Design and Cost Update Michael A. Green Lawrence Berkeley Laboratory 10 February 2005.

Spectrometer Solenoid Modification PlanSpectrometer Solenoid – MAP TB Steve Virostek Page 2 Topics •Magnet analyses •Design modification plan-Heat reduction to 4.2K-Radiation

WBS 4 Solenoid Magnets Update

Spectrometer Solenoid Update Steve Virostek - LBNL MICE Video Conference #129 February 25, 2010.

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5 – Magnets and electromagnetism PHY167 Spring 2006 – Magnets and electromagnetism ... Compass is a small magnet that points to the North with this ... Magnetic field in a solenoid

Spectrometer Solenoid Test Plan Workshop: Spectrometer Solenoid Overview Steve Virostek - LBNL February 17, 2012.

Chapter 10 Superconducting Solenoid Magnets · Chapter 10 Superconducting Solenoid Magnets 10.1 Introduction TheNeutrinoFactory[1],[2],[3],beyondapproximately18mfromthetarget,requires

Chapter 10 Superconducting Solenoid Magnets 10 Superconducting Solenoid Magnets ... copper radiation shield. ... The gap between the coils is 140 mm and the space between a coil in

SLAC, 5-Dec-2006 Magnets and Magnetic Measurements for Prototype Energy Spectrometer T-474.

Spectrometer Solenoid Update