The above photo is the beam's-eye view of the Cerenkov mirrors.

Photos of mirrors (81&82) that were damaged by leaky box at Fermilab: pic1, pic2

After this photo was taken, the light cones for mirrors 33, 81, 46, 94 were adjusted to be in the center of their respective mirrors.



Mirror location (Beam's-eye view)

Beam left                                   Beam Right
                         adc3
-----------------------------------------------------+
 35   38     39      40       41     42      45   48 |
           +-----------------------------+           |
           |  4  8  12 16 | 20 24  28 32 |           |
 34   37   |  3  7  11 15 | 19 23  27 31 |   44   47 |
           |  2  6  10 14 | 18 22  26 30 |           |
 33   36   |  1  5   9 13 | 17 21  25 29 |   43   46 |
-----------+--------------+--------------+----------+
                adc1             adc2

                adc4             adc5
-----------+--------------+--------------+-----------+
 81   84   |  49 53 57 61 |  65 69 73 77 |   91   94 |
           |  50 54 58 62 |  66 70 74 78 |           |
 82   85   |  51 55 59 63 |  67 71 75 79 |   92   95 |
           |  52 56 60 64 |  68 72 76 80 |           |
           +--------------+--------------+           |
 83   85    87    88            89    90     93   96 |
-----------------------------------------------------+
                        adc6


Spider box layout

Top Half
Bird's eye view
-----------------------------------------------------+
             39      40   |   41     42              |
              SB1 +-------+-------+ SB3              |
 35   38          |      SB2      |          45   48 |
             4  8 | 12 16   20 24 | 28 32            |
 34   37     3  7 | 11 15   19 23 | 27 31    44   47 |
             2  6 | 10 14   18 22 | 26 30            |
 33   36     1  5 |  9 13   17 21 | 25 29    43   46 |
--------------------------+--------------------------+
                          ^
                          |
                          |

                   Left Beam Right

Bottom Half
View from lying underneath detector

                   Left Beam Right
                          |
                          |
                          V
------------------+---------------+------------------+
 81   84          |      SB5      |          91   94 |
        SB4 49 53 | 57 61   65 69 | 73 77 SB6        |
 82   85    50 54 | 58 62   66 70 | 74 78    92   95 |
            51 55 | 59 63   67 71 | 75 79            |
 83   86    52 56 | 60 64   68 72 | 76 80    93   96 |
                  +-------+-------+                  |
            87    88      |     89    90             |
--------------------------+--------------------------+

Spider Box Cable Map

white=even, blue=odd
Pair Pair Top Bottom
(no swap) (swap) SP1SP2SP3 SP4SP5SP6 Pins
TDCCrate 3 3 3 4 4 4
TDCSlot 81012 81012
116 1 925495773 1- 2
215 21026505874 3- 4
314 31127515975 5- 6
413 41228526076 7- 8
512 51329536177 9-10
611 61430546278 11-12
710 71531556379 13-14
8 9 81632566480 15-16
9 8331741816589 17-18
10 7341842826690 19-20
11 6351943836791 21-22
12 5362044846892 23-24
13 4372145856993 25-26
14 3382246867094 27-28
15 2392347877195 29-30
16 1402448887296 31-32

Spider Box Pinout

          11111111
 12345678901234567
+-----------------+
|2468.............| 
|13579............|
+-------+ +-------+

LED Layout
led.pdf

Historical Information

Bottom phototubes
View from lying underneath detector

                   Left Beam Right
                         |
                         |
                         V

--------++                                 ++--------+
 81   84||                                 ||91   94 |
    +---+|  49 53   57 61   65 69   73 77  |+---+    |
 82 | 85 |  50 54   58 62   66 70   74 78  | 92 | 95 |
    |    |  51 55   59 63   67 71   75 79  |    |    |
 83 | 86 |  52 56   60 64   68 72   76 80  | 93 | 96 |
----+    +----------------+----------------+    +----+
            87    88      |     89    90             |
--------------------------+--------------------------+


81-83 and 91-94 analog cables to patch panel are longer than all
of the rest.

Grouping of connectors on oil-pan patch panel
Six Columns of 8 connectors, columns from left to right:
  89-96
  73-80
  65-72
  57-64
  49-56
  81-88