New hexagonal design for minerva a bodek sept 11 2004
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New Hexagonal Design for MINERvA A. Bodek- Sept. 11. 2004. Now even counters have a 1.2 solid steel picture frame Around the 3 m wide active target. The 30 cm lead is

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New hexagonal design for minerva a bodek sept 11 2004 l.jpg
New Hexagonal Design for MINERvAA. Bodek- Sept. 11. 2004

Now even countershave a 1.2 solid steel picture frame

Around the 3 m wide active target. The 30 cm lead is

Attached to the steel frame and is on both sides of the counter. The Fe Steel picture frame is not instrumented except for one layer of two triangular counters on the edge to see an exiting muon.

The light is routed with a 1.2 meter long extension of

The green fiber taking it to a connector outside the frame

On the edge. A clear fiber cable takes the light to a phototube

Odd counters have no steel or lead at all, they are just 5.4

Meter wide totally active scintillator. They go to a connector just

Outside. A clear fiber cable takes the light to a phototube


Even x number plane l.jpg

1.2 m wide- Fe picture frame which is not instrumented except for one layer of counters on the outside.

2-mm G10 or Al or stainless steel 0.25 mm } to protect Routing plate R1

Even Xnumber PLANE

plastic fiber routing plates.

Even Counters are all

X counters have 3 m long counters

Two 1.5 mm lead screwed to steel 1.2 meter outer frame (one on each side of the counter


Slide3 l.jpg

Blue are active counters except for one layer of counters on the outside.AllX-even planes have 1.2 steel frame,

Odd planes are U and V and are totally active 5.4 meter long

V

odd

X

even

U

odd

X

V

odd

X-even

1.5 mm Pb on each side

even

2 mm plastic WLS fiber

Routing plate to connectors

Solid 1.2 Fe

Fe frame

Steel is black

15

mm

2

mm

One layer outside


Slide4 l.jpg

Blue are active counters except for one layer of counters on the outside.AllX-even planes have 1.2 steel frame,

Odd planes are U and V and are totally active 5.4 meter long

V

odd

X

even

U

odd

X

V

odd

1.5 mm Pb on each side

U odd

even

2 mm plastic WLS fiber

Routing plate to connectors

Solid 1.2 Fe

Fe frame

Steel is black

15

mm

2

mm

One layer outside


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