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Injection Testing and Vacuum System Checks for TI8 at LHC

The ongoing TI8 testing involves critical procedures for the LHC at points 7 and 8, including interlock verification for safe beam flags and testing of warm magnets set after scheduled maintenance. Key components such as vacuum valve controls, alarms, and logging systems are being evaluated this week, with a focus on BTV injections and BIC logging. We need to ensure stable operation of power converters from the last tests, while maintaining open vacuum valves in LSS2 and LSS3, and continuing cleaning tasks in sectors 78-81. Upcoming PM meetings will address these processes.

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Injection Testing and Vacuum System Checks for TI8 at LHC

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  1. Testing TI8 started: MSI and MBIH strapped from the access system. The main bends are for the moment blocked out. We will have to do the opposite at some point to test the electronic switch (we will run in parallel to CNGS) • Asked to have an LHC cycle available all the time after the long MD • Warm magnets in point 7 are available with the exception of RD34.LR7. Strapped from the access system this morning. Heat run tomorrow. Try to exercise the warm magnets afterwards waiting for sector 78 Injection Test

  2. BTV tested everywhere last week: • Need to verify that the interlock on the injection screens for B2 is maskable when safe beam flag TRUE (need to have safe beam flag forced to TRUE for point 7 and point 8). • Vacuum valves controls, alarms, intlks, logging: • LSS6,LSS7 and LSS8, end of TI8 are going to be tested this week. • Logging of the vacuum valve status available • BIC logging available when the channels are enabled (LSS7 and 8 will be enabled this afternoon) and left enabled. • BLM we should really try to get them in BIC and have them running with thresholds • Injection inhibit to be tested with LHCb • WIC to be included for point 7 and point 8 • FMCMs? • PIC configuration and test for point 7 and 8 Injection Test

  3. We should aim at leaving all the channels enabled for the last injection test enabled  Keep the power converters used during the last injection test at injection level •  Vacuum valves open in LSS2 and LSS3 during the injection test • Status of the Safety Stoppers (strapped from the interlock system so far) • Energy from 56-67? • Cleaning of Sector 78-81 • PM generation • 5 PM meeting restarting tomorrow Injection Test

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