ELOG CARME

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

CARME

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Entry time:	Fri Mar 28 20:46:50 2025
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> All neg feed-throughs have now been fully installed, with ground tags > and power wires crimped and attached to the correct pins. Feed-throughs > are installed as seen in Image > 1 of zip file, with mark at the top of the feed-through. The pin > assignment is seen in Image 2. The pins are assigned letters A to F, > with F the top pin and C the bottom > pin as installed(refer to images 1+2). The ground is pin c, with the > two power wires connected to the bottom pins either side of the ground > (pins b and d). Connections of > wires from the negs to the feed-through is seen in image 3. Feed- > throughs have been electrically checked. The ground pin is checked > against the chamber giving > approx 0.5 ohms and the power pins are checked together giving 5-10 > ohms. Each of the power pins are open circuit with respect to the > ground. A > thermocouple has been attached under the bolt of one of the neg pumps > (image 4). > > Pirani gauge and hot cathode gauge have been installed on the chamber > (images 5,6,7,8) on the section furthest from the turbos. > > Upper valve, turbo and supports have all now been installed (images > 9,10,11). Images 12,13 are of the internal of the turbo and turbo > ports. The lower valve supports > produced by the Daresbury group (image 14) are also now attached. These > supports were required as the lower valve sits higher than anticipated > due to shorter right-angled > flanges. > > Chamber is now ready to close and leak test! Encoding: HTML ELCode plain Suppress Email notification

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