AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
AIDA
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Entry time:
Sat Mar 29 11:35:37 2025
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Stack has been changed in configuration from a 6 DSSD stack to 8 DSSD stack. What was detectors 1-6 are now 3-8 with 2 new detectors added to the front. The stack order is now: DSSD 1 3058-25 Top DSSD 2 3058-2 DSSD 3 3058-4 DSSD 4 3058-3 DSSD 5 2998-23 DSSD 6 3058-5 DSSD 7 3058-6 DSSD 8 3058-7 Bottom To handle the new detectors an additional 4 FEE modules 8 FEE64 were installed in the system with MAC addresses: FEE 25 - 2B 09 E7 FEE 26 - 2B 22 55 FEE 27 - 2A F6 D4 FEE 28 - 2A ED 8F FEE 29 - 2A D0 1A FEE 30 - 2B 33 0C FEE 31 - 2A B6 45 FEE 32 - 2A B2 B2 FEE Mapping is now: FEE Number DSSD A B C D 1 25 28 30 31 2 26 27 29 32 3 1 20 22 23 4 2 19 21 24 5 9 12 14 15 6 10 11 13 16 7 17 4 6 7 8 18 3 5 8 All 4 new p side cables were made using 33" ribbon cables The n side cables for detector 2 were made using 37" cables The n side cables for detector 1 were made using 39" ribbon cables (37" was to short) Non-isolated cables related to C connector on DSSD The detectors were placed inside the snout with two reference lines for insertion. The first labelled as June 18 6 stack will place the centre of the detector stack (Between detectors 5 and 6) in the centre of BRIKEN when inserted up to this line. Distance from edge of BRIKEN to centre is 37.5cm The second mark is 1cm along from this and is labelled June 18 8 stack. This positions the centre of the stack (Between detectors 4 and 5), what would be 3 and 4 if only 6 detectors) in the centre of the BRIKEN array. One thing to note is that with 8 detectors getting the snout on is a tight fit and can push down the rods the detectors are held on. This was previously a friction fit between the rods and the snout base. The rods had to be pulled out slightly to allow for the extra length needed for 8 detectors. To aid in the rods were not slipping grub nuts were moved to the bottom and locked in position. This may not hold the strain of someone pushing the snout against them so caution is still advised when putting this on. When in the 8 stack configuration DSSD 1 is 4.5cm from the end of the snout. To support more detectors longer rods would be needed though.
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