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Minutes of the forward endcap EMC meeting, 10th of Novemberr 2014, SeeVogh, 14:00-15:00 |
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Topics are not in the order of discussion but by subject. |
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Topics are not in the order of discussion, but by subject. |
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Presence |
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- Bochum: Claudius, Fritz-Herbert, Mario,, Miriam, Patrick, Stephan, Tobias H., Tobias T., Tom
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- Bochum: Claudius, Fritz-Herbert, Mario, Miriam, Patrick, Stephan, Tobias H., Tobias T., Tom
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- Bonn: Christoph, Ulrike
- Groningen: Myroslav
- Uppsala: -
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Xxxxxxxxxxxxxxxxxxxx to be written......... |
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Cables |
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Electronics
- Christoph: new test module with shaper is ready and will be sent to Bochum next Wednesday.
- Myroslav: Newest ADC received from Pawel last week. Will take a few weeks for software/testing etc.
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- Claudius: Cables length for various low voltage (Preamps, THMP, SADC, LP) is not yet determined. Will be sent to Bonn once information is available.
- Christoph: Status order: Fllotex, quote asked. HV for alveole, sample of more flexible version available.
- Question: Which connector to use on H&S HV cable? Action: Bochum looks into design of HV patch panel and possible connectors.
- Bonn will order HV cable for a maximum length of 40km.
- Action: Need to define in PANDA technical board the location of the crates for forward endcap EMC.
- Concerning location of power supplies: Action (to system managers): Ask Lars for radiation map.
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Cables
- Christoph: Quotes available. Order signal cables (16 weeks production time), order HV cable (delivery week 7/2015)
- Christoph: low voltage: examples to RUB. HV cables for VPTT will be ordered, HV for APD rated 300 V.
- Fritz-Herbert: Cables for alveole should be ordered, such that VPTT alveole mass production starts latest in January.
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Mechanics |
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- Cable and cooling routing through solenoid: Question: Are the holes U-shaped, such that one can move in the endcap with cable-trays and cooling mounted? Action: Myroslav will ask Rick.
- Myroslav has reveived a new ADC from Pawel. He will check how to make cooling in the crates thinner. Current plan: 10 digitizer/crate with one common power supply. ADC horizontally inserted. depth 19cm, 9cm for cables and connectors.
- Bochum: It will be difficult to accommodate 22 crates. More ADCs/crate possible?
- Matthias: Space between crates is small for cooling connections. May require two different designs of crates.
- Christoph: Bonn cannot produce interface pieces, they are still waiting for numbers from KVI. Action: Myroslav will ask Rick to provide the hole positions and angles for the full Alveoli.
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- Myroslav: RUB got all swagelok connectors from KVI. Rick will sent a list with all required types (and order numbers) in the next few days.
- Christoph, Tom: Inserts, mount plates and alveoli can be transported to Bochum by car (driver from Bonn University) whenever possible.
- Myroslav on crate design: New ADC has components on both sides. Will work on how to cool in the next few weeks.
- Claudius: Depth of crates? Myroslav: 10cm = height of ADC module, additional space for backplate and connector. Rest available for cables.
- Myroslav: Hydraulic pads for endcap are in principle commercially available. No detailed design was done by Michel.
Photodetectors
- Christoph: More measurements of VPTTs@0.99T, theta=0 and HV=1000V performed. Reduction of gain due to mag. field to about factor 0.4-0.5. 30 VPTTs measured/week. Action: Christoph will sent around results after next measurements (Due date: next Tuesday). After that will do final decision on preamp gain for VPTTs.
- Ulrike: What is the status of the APDlab measurements? Do we need to irradiate all APDs? Fritz-Herbert: Please ask Andrea about details.
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AOT |
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- Bonn has submitted shaper boards with "final" design. Once ready the boards will be sent to Basel and Bochum.
- Fritz-Herbert: The support frame for Juelich will be discussed next week with FZ Juelich engineer. Ulrike: Will it be moveable to shoot proton from COSY in crystals? Answer: no, we will use only particles after target. E.g. pi0 for calibration.
- Christoph: VPTT delivery schedule: Week 45,49,1,6,7 and 11 last delivery.
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- Rauischholzhausen attendance: Myroslav possibly, Bonn: not possible, Bochum: Tom, Matthias, Claudius, Tobias T., Fritz-Herbert
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-- FritzHerbertHeinsius - 29 Oct 2014 |
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-- FritzHerbertHeinsius - 11 Nov 2014 |
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