“Option B” Spreader/Recombiner Design Review Beam Transport S/R Layouts

June 1, 2009

12GeV Upgrade - Beam Transport

“Option B”Spreader/Recombiner Design Review

Beam Transport S/R Layouts

Outline

• Introduction• Beam Transport S/R Layouts• Status/Summary

Introduction• The 12GeV upgrade requires

extensive modifications to the spreader and recombiner regions of the machine

• These are the most congested regions in the beam transport system

• Goal to reuse as much of the existing hardware as possible– Complicated by incomplete

documentation of girders/bracketry

• The 12GeV 2008 layouts never progressed beyond the rough 2D songsheet level

Introduction – cont’d

Option B Layouts:– Established symmetry between spreader/recombiner

• Reduces layout design effort– Fewer unique dipole bracket designs– Step height ratios are consistent between S/R

» Allows consistent quad layout between S/R– Include new septa layout(Tief layout) in the east spreader– Rotates several existing girders to “fix” element sequence

(BPM-Quad-Correctors) – Ops request– Quads positioned based on step height ratios– Requires no change to matching section quad girder layouts– Significant effort has been made to gather and model as-built

S/R information

Beam Transport S/R Layouts

• Two spreader regions– East and west spreaders

• Three recombiner regions– East, west and transport recombiners

Beam Transport S/R Layouts – East Spreader

Current Configuration

June 2008 12GeV Configuration

Beam Transport S/R Layouts – West Spreader

Current Configuration


Beam Transport S/R Layouts – East Spreader

12GeV Option B Configuration

•Replaced 2m dipole in Hall D line with three 1m dipole magnets

•Rotated 3S03 girder to put BPM upbeam of quad

•Added BPM in 7 line, IPM7S03A per I&C’s CR 08-040

•Incorporated the Tiefenback septa layout

•Quadrupoles match requirements set by Alex

•Layout requires only three girders be rebuilt and minor mods to three others

Highlights…


Beam Transport S/R Layouts – East Recombiner

•Rotated 1, 3, 5, & 7 line girders in the “step” to put BPM upbeam of the quad (exceptions: 3R08 & 7R08)

•Added BPM in line 7, IPM7R07A per I&C’s CR 08-040


•Layout requires only two girders to be rebuilt and minor mods to two others

Highlights…



Beam Transport S/R Layouts – West Spreader

Highlights…


•Added BPMs in lines 6 &8, IPM6S03A & IPM8S03A per I&C’s CR 08-040


•Layout requires only one girder to be rebuilt and minor mods to five others


Beam Transport S/R Layouts – West Recombiner

Highlights…12GeV Option B Configuration

•Added BPMs in lines 6 & 8, IPM6R07A & IPM8R07A per I&C’s CR 08-040


•Layout requires minor mods to five girders


Beam Transport S/R Layouts – Transport Recombiner

Highlights… 12GeV Option B Configuration

•Added vertical correctors at 6T09, 8T07, & 8T09 to meet 12GeV BdL specs

•New correctors required small shifts in the 6 & 8 line quads relative to the data transmitted to Alex… preparing request to CASA to evaluate alternate AT quad layout for use in all west S/Rs


•Layout requires minor mods to eight girders in the “step”


Status/Summary

• Still expect small changes to the S/R layouts• Design efforts are focused on items not likely to be impacted by layout

changes– Will hold-off on the design of the vertical support stands until layout

has “totally frozen after feedback from this review” • Dipole & girder support arm locations laid in to the 95% level… still

refining a few areas– Bracket designs ~80% complete

• We have nearly completed the new and modified quad girder designs and associated detail drawings

• New and modified dipole vacuum chambers designs are ~50% complete– Looks like ~50% of the total will be recycled from existing machine

• Will begin detailed septa vacuum chamber design this month

Beam Transport Layouts – Selected Images

Documents

“Option B” Spreader/Recombiner Design Review Beam Transport S/R Layouts