Scanners in Period 4 and 11 of the PSB Federico Roncarolo BE-BI - PowerPoint PPT Presentation

SPACE RESERVATION REQUEST EDMS n. 1506932 New SEM Grid Monitor and New Fast Wire Scanners in Period 4 and 11 of the PSB Federico Roncarolo BE-BI Paolo Magagnin BE-BI

Exis isting sit situation Section 4L1 Section 11L1 These two sectors have been chosen to house: • 1 SEM Grid Monitor • 8 fast Wire Scanners

In Introductio ion Section 4L1 Section 11L1 B B B SEM W W W S S S 1 SEM Grid Monitor: 8 Fast wire Scanners: • Turn by turn profile • Horizontal and vertical measurement at the PSB simultaneous scans  Two injection requested by BE-OP different section required • Measurements in ring 3 only will • Sectors 4L1 and 11L1 identified as be sufficient for characterising suitable the PSB injection mismatch • BWS prototype: section 4L1 ring 3 • Sector 4L1 identified as suitable location.

Tim imescale Section 4L1 Section 11L1 B B B SEM W W W S S S 1 SEM Grid Monitor: 8 Fast wire Scanners: • YETS 2016 – 2017: BWS prototype installation • YETS 2017 – 2018: SEM Grid installation • LS2: 7 BWS installation

Reason for r change Section 4L1 Section 11L1 B B B SEM W W W S S S 1 SEM Grid Monitor: 8 Fast wire Scanners: • Essential for turn by turn profile Standardisation and reliability measurement improvement of CERN’s Wire Scanners • BWS prototype: performance evaluation before series production

Detailed description – se section 4L 4L1 • 1 horizontal and 1 vertical BWS required for each ring  horizontal BWS installed in section 4L1 (1 per ring) • Longitudinal available space in 4L1 ring 3 for the installations of the SEM Grid + BWS: 1200 mm • Preliminary BWS design with a longitudinal dimension of 450 mm, leaving sufficient space for the SEM Grid. • New mechanical design of the SEM Grid due to the limited vertical space for the presence of the other beam pipe: not started yet.

Detailed description – se section 11 11L1 B B W W S S • Vertical BWS installed in section 11L1 (1 per ring) • Additional pumping capability will be evaluated after the vacuum qualification of the components and assemblies. • Not cooling foreseen on BWS due to RF heating

Conclusions • The ECR will be written in the first semester of 2016, and will include also the SEM Grid if the design will be already started • Investigation of radiation issues will be included in the ECR (radiation dose planning).