Vacuum & Cooling Systems Updates F. Makahleh On behave of Vacuum & Cooling Group TAC 2013, F. Makahleh, Vacuum & Cooling 1

OUTLINES BR Vacuum System SR Vacuum System Remarks on Commissioning of Cooling System 2 TAC 2013, F. Makahleh, Vacuum & Cooling

BR Dipole Chamber FAT FMB April,

BR Dipole Chamber FAT FMB April, The following tests were carried out:  Bake out at 250 °C for 48 hours  Helium leak test after bake out  Final pressure test after bake out  Desorption rate test after bake out  Residual Gas Analyses (RGA) after bake out  The permeability of chamber including welding seams Laser Arm Measurement

BR Installation

BR Vacuum GUI Start with 2 Screens More Screens: TL1 Vacuum Trend Vacuum Profile Alarms Access Level

BR Vacuum Trend Time (Weeks) P min = 1.2 E-8 mbar S3 P max = 1.2 E-7 mbar Ext.Septum

8 SR Vacuum Chambers Magnets, Chambers and Girder Coil width increased by 40 mm when optimized by CERN CERN Double Check

9 IR Dipole Vacuum Chamber Circular flange design (hits the magnet coils at the two edges) Rectangular flange design (fits inside the coil 3mm far from the edges) IR opening is kept 40* m

10 Vacuum Chamber Tender Findings Rewarded to FMB with 1.45 M € (Lowest Price)

11 What Else for Vacuum System ?? Pump TypeTotal Price(€) SR Chambers Special Straights Valves and Bellows Pumps NEG Pumps Gauges Sum of total Ready

12 Cooling Plant

13 Cooling GUIs 20 Screens Data logging Alarms Web Address

Cooling Commissioning 14 System commissioning with Control System :  Include Temperatures, pressures, flow rates, KWh, and scheduling.  Also include point-point check.  BR Cooling circuit (PIDs) are adjusted for temperature, pressure and flow  SR,RF and BL are adjusted for pressure and flow (Same PID) parameters.  All circuits to be re-commissioned (end of 2015)? Temp. Stability = ± 0.4 °C Average.abs.diff = 0.15 °C Time (hours)

15 Acknowledgment: Many Thanks for Lothar Schulz for advices and discussions stated 2006 which lead to optimized design. Thank You