Phase 1 Primary Line CONS PRIMARY B L

Phase 1 : Primary Line CONS PRIMARY B. L. CONSOLIDATION – NA-CONS PHASE 1 BSI Consolidation 4 Cost estimate (k. CHF) 240 BSP Replace by SEM grids 4 240 NA operation, Loss of OP time for TT 20 re-steering and source of inefficiency for switching extraction energy during ion run, lack of TL optics measurements 1 BTV Consolidation 3 180 NA operation, Loss of OP time for TT 20 re-steering, poor TT 20 splitting efficiency 1 BLM Detectors 30 60 NA operation, Risk of OP downtime, especially for TT 20 splitter BLMs, risk of increased beam loss 1 Electronics 30 80 Cabling / installation 30 110 Monitor / System Required works #Units Cabling in TDC 2/TTC 2 included above FSU Mechanics, Electronics, Installation 2 MY 160 Student BSI & BTV 2 MY 88 SUB TOTAL 1158 Projects affected Consequences of non-upgrade NACONS Phase NA operation, Unknown POT (large systematic errors), poor TT 20 splitting efficiency, risk of increased activation 1 1 oct 21 for 2 years k. CHF 1

Phase 1 & 2 : Primary Line UPGRADE PRIMARY B. L. UPGRADE – NA-CONS PHASE 1 Fast Spill Detector Produce a new system (OTR or Cherenkov) 200 MHz 1 Cost estimate (k. CHF) 100 Longitudinal BLM LSS 2 Produce new longitudinal BLM 1 100 NA operation, Quantification of SPS extraction efficiency limited 1 P 42 SEM Upgrade Produce 3 new dual plane SEM grid for P 42 3 180 K 12 No instrumentation for P 42, optics issue with large beam spot on T 10 cannot be diagnosed 1 380 k. CHF Monitor / System Required works #Units SUB TOTAL Projects affected Consequences of non-upgrade NACONS Phase NA operation, OP blind to high freq. spill quality from CCC, limiting planned machine studies to improve spill quality 1 PRIMARY B. L. UPGRADE – Postponed to NA-CONS PHASE 2 after this meeting Monitor / System Required works LSS 2 SEM Upgrade Produce 6 new dual plane SEM grid SUB TOTAL #Units 6 Cost estimate (k. CHF) 360 Projects affected NA operation, k. CHF Consequences of non-upgrade Critical for extracting beam with octupoles and crystal: limiting potential beam loss reduction NACONS Phase 2

Phase 1 : Secondary Line CONS SECONDARY B. L. CONSOLIDATION – NA-CONS PHASE 1 XSCI Produce new readout boards 40 Cost estimate (k. CHF) 250 CEDAR Produce new readout boards 30 200 NA Operation Outdated components. Impossible to repair or produce new boards. 1 XCET Produce new readout boards 15 125 NA Operation Outdated components. Impossible to repair or produce new boards. 1 XION Produce new readout boards 5 75 NA Operation Outdated components. Impossible to repair or produce new boards. 1 XEMC Produce new readout boards (XSCI type) XBPF to replace XWCA, XWCM, XDWC and FISC. 5 25 NA Operation 1 15 205 M 2, K 12, NA Operation Outdated components. Impossible to repair or produce new boards. Missing beam profile information. Unreliable beam line operation. 5 75 15 1. 5 MY 120 1 2. 5 MY 300 1 Monitor / System XBPF for M 2, K 12 & partly EHN 1 Required works FISC vacuum tanks are reused when possible. New vacuum tanks + support with adjusting table (prototype + production) Motorisation (prototype + production) FSU Fellow SUB TOTAL XBPF (1 MY) & electronics production (0. 5 MY) XBPF design modifications & testing. Investigation rad-hard profile monitor. #Units 1490 Projects affected Consequences of non-consolidation NA Operation Outdated components. Impossible to repair or produce new boards. NACONS Phase 1 1 New vacuum tanks are needed. The monitors need to be taken out from the beam line very often to avoid degradation and to accommodate to the physics program. Motorisation is more cost-effective and safer than CERN personnel moving out the detectors manually. k. CHF

Phase 1 & 2 : Secondary Line UPGRADE SECONDARY B. L. UPGRADE – NA-CONS PHASE 1 Monitor / System Required works #Units Rad-hard profile monitor Investigation and production of a radiation-hard profile monitor for the high-radiation and highintensity part of M 2. 5 Cost estimate (k. CHF) 225 Projects affected M 2, NA Operation Consequences of non. NACONS Phase upgrade Missing beam profile 1 information. Unreliable beam line operation. New vacuum tanks included. Motorisation +mech supports x 5 included. SUB TOTAL 225 k. CHF SECONDARY B. L. UPGRADE – Postponed to NA-CONS PHASE 2 after this meeting Monitor / System Fellow* SUB TOTAL Required works Fellow to work in the heavy ion profile monitor and other upgrades (phase 2) #Units 2. 5 MY Cost estimate (k. CHF) 300 Projects affected Consequences of non. NACONS Phase upgrade 2 k. CHF *This Fellow was originally split between Phase 1 (1 MY) and Phase 2 (2 MY). Now it is fully shifted to Phase 2.