DSSD stack will be as follows
1 3208-7 1019 125 upstream
2 3208-13 1020 120 downstream
First start checking bias pins on both detectors
These are pins on the *bottom right* of each 68 pin connector (C-2299)
Expect finite resistance
3208-7:
Top and bottom: 22 Ohm
Left and right: 22 Ohm
3208-13:
Top and bottom: 22 Ohm
Left and right: 22 Ohm
Conclusion: All bias bond wires are intact on both DSSDs
Visual inspection is both DSSDs look good with no damage or bond wire issues
Installed in snout: full stack
3 mm bPlas 1
17 mm Air
1 mm AIDA 1 (645 mm from base of snout)
9 mm Air
1 mm AIDA 2 (655 mm from base of snout)
12 mm Air
3 mm bPlas 2 |