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Estimation on how many channels needed for Endcaps

Estimation on how many channels needed for Endcaps.

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Estimation on how many channels needed for Endcaps

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  1. Estimation on how many channels needed for Endcaps Each endcap (north or south) will carry 4 stations, and each station will carry 96 detectors (Large, medium or small, with 6, 5 and 3 PHX chips respectively). If we suppose the end of detectors of outer-circle and inner-circle should match (which is not mentioned in the proposal), then the nearest two stations will carry 48 small(outer) and 48 medium(inner) detectors, while the other 6 stations will carry 48 large(outer) and 48 medium(inner). Thus: Total PHX chips needed: ( 48*3+48*3*6+48*4*5 ) * 2 = 3936 And total strips needed: (48*1536 + 48*3*3072 + 48*4*2560) * 2 = 2015232

  2. 3 4 Panels that locate on 4 different stations of one endcap, and belong to the same slice Track, and its 4 hits left on each panel 2 1 0 Each panel has 4 detectors(large, medium or small) and at most 24 PHX chips, while each PHX chip always has 512 strips.

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