AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
DESPEC
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Entry time:
Thu Mar 7 11:09:05 2024
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Snout assembly DSSSDs Upstream 3208-10/3208-18/3208-20 Downstream 3131-5/3131-10/3131-12 p+n junction side bias continuity checked OK for *all* wafers all c. 22 Ohm as expected n+n Ohmic side bias continuity checked OK for both DSSSDs upstream 73 Ohm, downstream 92 Ohm n+n Ohmic side bias wafer #2 positioned at top of snout assembly ( lower stage snout side marked 'T' ) p+n junction side faces downstream Distances Using top edge of lower stage snout as reference ref - middle of upstream bPlas 8.0cm ref - upstream DSSSD 11.0cm ref - downstream DSSSD 12.0cm ref - middle of downstream bPlas 14.0cm Measurements consistent to +/-1mm between LHS and RHS of snout assembly as viewed from top side 13.00 At this position the Kapton PCBs bulged in/out and there was some concern that when the upper stage snout was installed it would the Kapton PCBs into the 'active' area. It was decided to move the 2x bPlas and 2x DSSSDs c. 5mm downstream. Jeroen and Phillip cut sections from 4x PEEK 6mm spacers so that they would clip onto 3mm dia support rods. We raised the assembly fro the inter stage and inserted the modified spacers between the inter stage and the other spacers above. The Kapton PCBs now run fairly straight to the DSSSD connectors. Distances re-measured as Using top edge of lower stage snout as reference ref - middle of upstream bPlas 8.6cm ref - upstream DSSSD 11.5cm ref - downstream DSSSD 12.4cm ref - middle of downstream bPlas 14.5cm
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