1. CMS Experiment at the LHC, CERN Date Recorded: 2009-11-23 19:21 CET Run/Event: 122314/1514552 Candidate Collision Event Report from Belgium Michael Tytgat RPC Upscope Meeting February 5, 2010

2. Belgian Groups in the Project February 5, 2010 RPC Upscope Meeting 2 In the upscope plan put forward in 2008, the Belgian contribution to the chamber assembly/testing would be distributed over 3 sites : o VUB : Walter Van Doninck et al. Installation & commissioning of RPC endcap system, mechanical design of upscope chambers o UCL : Eduardo Cortina et al. RPC detector R&D o UGent : Michael Tytgat et al. Commissioning of RPC endcap system, simulation studies for RPC upscope, RPC detector R&D Belgium would assemble/test enough chambers to instrument 1 new endcap station 2 (low η part) : 72 chambers + spares in total, RE2 or new RE2bis “double” chambers, 36 RE2/3 in Gent, 18 RE2/2 in Brussels, 18 RE2/2 in Louvain-La-Neuve Similar assembly procedures and detector tests foreseen as in the ISR, before detectors would be shipped to CERN Central coordination of the Belgian contribution by Gent

3. Status of RPC Labs : VUB February 5, 2010 RPC Upscope Meeting 3 RPC lab under construction : o assembly/test room available o gas mixing unit ready, gas bottles to be ordered o CAEN HV/LV units ready o infrastructure ready (tables, electronics racks …) o setup for gas gap pressure and HV tests ready o no cosmic test bench Lab could be operational on short time scale

4. Status of RPC Labs : VUB February 5, 2010 RPC Upscope Meeting 4 Assembly area Gas mixer/distributor Test racks Detector transport table

5. Status of RPC Labs : UGent February 5, 2010 RPC Upscope Meeting 5 Large RPC lab under construction : o ~ 70m 2 area for assembly/testing allocated in old accelerator hall of the institute; additional space for storage of chambers and material available o additional new detector R&D room (45m 2 ) being set up o air conditioned hut (19m 2 ) ordered for chamber testing in a controlled environment o gas mixing unit (built by CERN gas group) delivered; to be installed o CAEN HV/LV units ready o equipment and materials to build large cosmic test bench (2x2m 2 ) ordered and partially delivered; waiting for scintillators from IHEP Protvino o long delay due to involvement of university safety (isobutane gas, HV …) and building service (gas safety cabinets, air conditioned hut, fences …) Lab should be operational by the summer

6. Status of RPC Labs : UGent February 5, 2010 RPC Upscope Meeting 6 Assembly area Gas mixer/distributor Detector R&D room Detector transport table HV/LV system

7. Status of RPC Labs : UCL February 5, 2010 RPC Upscope Meeting 7 Very large RPC lab under construction : o ~ 100m 2 area for assembly/testing allocated in old cyclotron hall of the institute; should be ready this summer o gas mixing and distribution unit ready o CAEN HV/LV units ready o equipment and materials to build large cosmic test bench ordered and partially delivered; waiting for scintillators from IHEP Protvino o DAQ and electronics ready o long delay due to involvement of university safety service Lab should be operational by the summer

8. Status of RPC Labs : UCL February 5, 2010 RPC Upscope Meeting 8 Cosmic test bench Gas safety cabinet Gas distributorGas mixer

9. Manpower February 5, 2010 RPC Upscope Meeting 9 Manpower available for chamber assembly and testing, assuming the project starts this year and the assembly is done in Belgium VUB: o 2.5 FTE technicians o 1 FTE engineer o 1 Physicist UGent : o 2 FTE technicians o 1 FTE technician to be hired o ~1 FTE PhD students o 0.5 FTE Physicists UCL : o 1.5 FTE technicians o 1 technician for transport of material and detectors (Belgium-CERN) o 1-2 PhD students o 1 Physicist

10. Budget February 5, 2010 RPC Upscope Meeting 10 Expected Belgian contribution to the RPC upscope project : 800 kCHF o Belgian Cost to Completion 3 attributed to RPC upscope : 456 kCHF o “Big Science” projects in Belgium : 225 kCHF o UGent CMS entry fee attributed to RPC (?) : 150 kCHF o Additional small contributions from institutional research projects funded by the FWO-Flanders

11. Concluding Remarks February 5, 2010 RPC Upscope Meeting 11 o The participating Belgian groups are ready to take up the responsibility to assemble a large part of the new chambers for the RPC upscope o Manpower is available to do the assembly locally; infrastructure should be ready by the summer o Belgian financial contribution to the upscope project seems secured o Chamber assembly should start asap to avoid losing essential people o If requested, the number of detector assembly sites can be reduced, e.g. limited to UGent and UCL o Sending Belgian technical manpower to CERN for longer periods for chamber assembly could be a problem o Having a (spare ?) chamber assembly line in Belgium will be beneficial for training new people for the commissioning/maintenance of the RPC system