Visual Inspection

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Cladding

The following end-on pictures were taken of a scintillating fiber and a light guide segment under a microscope, after the ends have been polished using office paper. From these pictures, it is difficult to discern any difference between multi-clad fiber and single-clad. The scintillating fiber (light blue-green tint) is multi-clad according to the manufacturer Saint-Gobain, whereas the light guide in these photographs is single-cladding fiber.

Fiber 004-4-2014.jpgFiber 005-4-2014.jpgFiber 006-4-2014.jpgFiber 007-4-2014.jpg
Fiber 008-4-2014.jpgFiber 009-4-2014.jpgFiber 010-4-2014.jpgFiber 011-4-2014.jpg
Fiber 012-4-2014.jpgFiber 013-4-2014.jpgFiber 014-4-2014.jpgFiber 015-4-2014.jpg
Fiber 016-4-2014.jpgFiber 017-4-2014.jpgFiber 018-4-2014.jpgFiber 019-4-2014.jpg
Fiber 020-4-2014.jpgAMCIMG 0022.JPGAMCIMG 0023.JPG

2nd Shipment of fibers

The following fibers were taken by Jim of the new shipment of multi-clad light guides.

LH VisInsp 2ndShip 01.jpgLH VisInsp 2ndShip 02.jpgLH VisInsp 2ndShip 03.jpg
LH VisInsp 2ndShip 04.jpgLH VisInsp 2ndShip 05.jpg

Effects of Painting and Cleaning

These are photos of fiber 3 of Bundle 7. We are looking to see if there is any damage that can be seen on the areas of a fiber which were painted and cleaned in comparison to the area which the fiber was never painted.

Unpainted, Straight

These are photos of the straight section of fiber which was never painted.

LH-VisInsp-04292014-1.jpgLH-VisInsp-04292014-2.jpgLH-VisInsp-04292014-3.jpgLH-VisInsp-04292014-4.jpg

Painted and Cleaned, Straight

These photos are from the long section of fiber which was painted and then cleaned with water and a cloth.

LH-VisInsp-04292014-5.jpgLH-VisInsp-04292014-6.jpgLH-VisInsp-04292014-7.jpgLH-VisInsp-04292014-8.jpg

Painted and Cleaned Fuse

Photos of the Fuse site can be seen on the Visual Inspection Photos 4-28-2014 page.

Testing a Heated Cleaning Process

This is fiber 13 of Bundle 7. This fiber was placed in steam before the paint was removed with water and a cloth. The paint did come off easier. The first three photos are of the unpainted section of fiber and the second three photos are of the cleaned section of fiber which were cleaned after being steamed.

Unpainted, Straight

LH-VisInsp-04292014-9.jpgLH-VisInsp-04292014-10.jpgLH-VisInsp-04292014-11.jpg

Painted and Cleaned, Straight

LH-VisInsp-04292014-12.jpgLH-VisInsp-04292014-13.jpgLH-VisInsp-04292014-14.jpg