1. 1 ENH1 Detector Integration Meeting 18/6/2015 D.Autiero (IPNL) WA105:  Detector installation requirements  Detector racks and power requirements Note: Just some first infos, quickly gathered given the very short notice of this meeting

2. 2 Detectors installation requirements: Some discussion at the Neutrino Platform meeting on April 9th https://indico.cern.ch/event/385747/ “WA105 large prototype requirements (cryogenics and cryostats)” Detector Installation procedures studied in the LAGUNA-LBNO DS in collaboration with the industrial partners A few basic concepts reminded in the following slides taken from that presentation:  Use of the cryostat as clean room for detector assembly  Temporary Construction Opening (TCO) to insert materials inside the cryostat (opening dimensions redefined as a 3x2 m2 in Dimitar ’s first cryostat steel-frame design)  Clean Room Buffer in the pit, crane to bring materials to CRB from the EHN1 floor  Platform on top of the detector to access signal chimneys  Area for top-caps assembly A few slides from the presentation given on April 9th 

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6. 3x1 top cap

7. Baseline WA105 design (TDR fig: 12,13,14)  12 signal chimneys in a central cross (4 « 3x1 like » top caps  HV FT  Slow control FTs not represented (4 FTs), can be integrated in signal top caps ?  Suspension FTs not represented (4 FTs)  Cryogenic and gas FTs and man-hole not represented  (to be put outside the 6x6 active area) responsibility of the cryogenic group

8. Cross of chimneys arranged in four «3x1 like» top caps We started discussing the constraints from the steel structure and interference of the I- beams in the structure with the positions of the feedthroughs

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10. 10 Detectors racks and power requirements

11. 11 uTCA crates Readout in groups of 640 channels/chimney  64O channels/chimney  1 uTCA crate/chimney  10 AMC digitization boards/crate, 64 ch./AMC  12 uTCA crates for charge readout + 1 uTCA crate for light readout uTCA charge readout architecture

12. 12 Global uTCA DAQ architecture integrated with « White Rabbit » (WR) Time and Trigger distribution network + WR MCH slaves in uTCA crates

13. 13 Online storage and data processing Defined basic architecture for local network, storage and computing:  Possibility to run with the beams without zero suppression at 100 Hz, event size 150 MB 15 GB/s, Huffman lossless compression under study  Online buffer storage up to ~PB  Online processing farm for event reconstruction, purity and gain analysis from cosmic ray tracks overlapped to beam events in a +-4ms window around the beam triggers

14. 14 Preliminary power estimates:  DAQ system (13 uTCA crates) + FE + Slow Control and safety + counting room: ~60 kW (…+ some margin to be added)  Online storage and data processing (OSDP): 15 storage servers, 384 cores, metadata servers, configuration servers, switches: ~50 kW (…+ some margin to be added). OSDP evaluation based on preliminary design of the facility and offers from DELL corresponding to that design with detailed description of the components, space occupancy 4 racks  Air conditioning/cooling for the OSDP facility + DAQ back-end and time servers, (50+5 kW heath dissipation), cooling power ? Total occupancy 5 racks (4 OSDP + 1 DAQ BE+Time), minimal space 3x5 m2. No particular constraints on the place of the OSDP room (optical fiber links to the uTCA crates)  Air conditioning for the counting room (close to OSDP room ?)