Name convention for FTs, proximity racks and APAs ProtoDUNE-SP ITI Meeting March 16 th , 2017 Roberto Acciarri
Proposal ➢ Each APA and feed-through will have a XX YY-ZZ label, where XX specify the kind of element (APA, CE for CE feed-through, TGrad for the feed-through of the temperature gradient monitor, etc), YY the position in the East-West direction (which is the beam direction) and ZZ the position in the North-South direction: ✔ Upstream (US), Midstream (MS), and Downstream (DS) will be used everywhere to specify the YY component of the label ✔ Beam Right (BR), and Beam Left (BL) will be used to specify the ZZ component of the label for APAs (as already established) ✔ DAQ Side (DaS), and Rack Side (RaS) wil be used to specify the ZZ component of the label for the feed-throughs ➢ Racks in detector ground will be named according to whether they are in the Front (closest to the cryostat) or Back (farthest from the cryostat) row and with a numbering scheme going from upstream towards downstream 16/03/2017 R. Acciarri - ITI meeting 2
General Name Layout Upstream Midstream Downstream (US) (MS) (DS) DAQ Side (DaS) Rack Side (RaS) 16/03/2017 R. Acciarri - ITI meeting 3
FTs and racks TGrad US-DaS TCryo MS-DaS PurMon names CE : Cold Electronics PD : Photon Detection System CE US-DaS CE MS-DaS CE DS-DaS TGrad : Temperature probes for PD US-DaS PD MS-DaS PD DS-DaS vertical gradient measurement TCryo : other temperature HV FT probes PurMon : Purity Monitor TCryo DS-RaS US : Upstream MS : Midstream TGrad DS-RaS DS : Downstream DaS : DAQ Side CE US-RaS CE MS-RaS CE DS-RaS RaS : Rack Side PD US-RaS PD MS-RaS PD DS-RaS Front : line of rack closest to the cryostat. Numbering starts upstream Rear : line of rack furthest from ... Front US 1 Front US 2 Front US 10 Front US 11 the cryostat. Numbering starts upstream 16/03/2017 R. Acciarri - ITI meeting 4 ... Rear US 1 Rear US 2 Rear US 9 Rear US 10
APA APA US-BL APA DS-BL names APA : Anode Plane Assembly APA MS-BL US : Upstream MS : Midstream DS : Downstream BL : Beam Left BR : Beam Right Front : line of rack closest to the cryostat. Numbering starts APA US-BR APA DS-BR upstream Rear : line or rack furthest from the cryostat. Numbering starts APA MS-BR upstream ... ... Front US 1 Front US 1 Front US 2 Front US 2 Front US 10 Front US 10 Front US 11 Front US 11 16/03/2017 R. Acciarri - ITI meeting 5 ... ... Rear US 1 Rear US 1 Rear US 2 Rear US 2 Rear US 9 Rear US 9 Rear US 10 Rear US 10
Reason(ing) ➢ FT and racks names will be mainly used during the installation phase, and to label and install cables – all occasions where people will be in EHN1 if not on the cryostat roof. It is then useful to name them according to visible and clear reference points in the building ➢ APA names will instead be used – other than during the installation and cabling phase – also in slow control and online monitor plots, as well as during data analysis. It will be important to relate the single APA to characteristics observed in beam data, and such name convention will likely be used by remote people too, so it does make sense to choose a name which quickly identifies the APA position wrt the beam ➢ The change of name convention moving from an APA to its FT should create no problem either during installation (being each FT right above its APA) or later, provided that good documentation will be realized 16/03/2017 R. Acciarri - ITI meeting 6
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