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NOvA Detector Technology

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Types of Photos<br />

1 -Top Lit 2 - Bottom Lit 3 - Center Lit (normal angle)<br />

Top Fiber<br />

Bottom Fiber<br />

Shadow Cap<br />

Light In<br />

Transmitted<br />

Light<br />

Reflected<br />

Light<br />

Top Fiber<br />

Bottom Fiber<br />

Transmitted Light<br />

• Defects found by catching abnormal intensity of<br />

• Reflected light of angled light photos (1 & 2)<br />

• Transmitted light of angled light photos (1 & 2)<br />

• Light of normal angle light photo (3)<br />

Reflected<br />

Light<br />

Light In<br />

Top Fiber<br />

Bottom Fiber<br />

Transmitted and<br />

Reflected Light<br />

ANT2010, Santa Fe Jarek Nowak, September 17, 2010

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