jack fowler spain workshop 2003 faraday shielding for barrel trt jack fowler duke university spain...

14
Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Upload: lorin-flowers

Post on 04-Jan-2016

215 views

Category:

Documents


1 download

TRANSCRIPT

Page 1: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Faraday Shielding for Barrel TRT

Jack Fowler

Duke University

Spain Workshop - 2003

Page 2: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Inner Cylinder Shielding

Inner cylinder will be coated with copper (35 micron) clad kapton (25 micron) (Total thickness 100 microns)

Due to the material width, there will be 3 separate wraps

The wraps will not overlap

Page 3: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

1st Prototype of Cylinder

Epoxy (AY 103 / HY 991) will be applied to the surface of the cylinder at an average thickness of 100 microns

We have measured a total thickness of epoxy and shielding material of 250 to 300 microns

Page 4: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Epoxy Application

Page 5: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Applying Copper/Kapton

Page 6: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Seams between wraps

3M Copper EMI Shielding Tape 1181 will be used to cover the seams of the wraps (66 microns thick total and 35 micron copper)

The tape will be spot soldered at the joint to the shield. This will be done approximately every 20 cm along the length.

Page 7: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Cylinder with Shield

Page 8: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Inner Cylinder Summary

Kapton coated copper will be epoxied onto the cylinder

The seams will be covered using copper tape. These joints will also be soldered. Maximum thickness should not exceed 350 to

400 microns. We have 1 mm.

Page 9: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Space Frame Shielding

The complete outer surface of the space frame will be covered with 3M Embossed Copper Foil Shielding Tape 1245 without tin plating (shown is tin plated) 100 microns thick / 35 micron Cu

The cooling tube corners will not be covered

Page 10: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Tape coverage

~18 mm of the space frame in Z will be covered.

The edge of the tape and frame will be coated with epoxy (AY103 /HY991) to prevent peeling

Page 11: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Soldered Joints

All of the intersection points of the tape pieces will be spot soldered to ensure a long term electrical connection

Page 12: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Joining the Inner Cylinder to Space Frame

The cylinder shielding will be applied within 0.5 mm of the area the space frame will occupy.

Soldered connection will be made for each 1/32

Page 13: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Space Frame Summary

Embossed Bare Copper tape will be used to shield the space frame

The inner cylinder will be connected to the space frames by soldered connections.

Page 14: Jack Fowler Spain Workshop 2003 Faraday Shielding for Barrel TRT Jack Fowler Duke University Spain Workshop - 2003

Jack Fowler Spain Workshop 2003

Outer Cylinders

The outer cylinder will be covered with the same copper/kapton material on the outer surface.

The connection to the will most likely be made using tape around the outer corner.