dean r walters undulator vacuum [email protected] october 12-13, 2004 facility advisory...
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Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Undulator Vacuum System/Mechanical
By
Dean R Walters
Advanced Photon Source
Argonne National Laboratory
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Talk Outline Undulator Chamber & Bellows
Vacuum System
Beamline Diagnostics
Schedule Highlights
Undulator Vacuum System/Mechanical
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Undulator Chamber & Bellows
Chamber Design
Bellows Design
Status of the Prototype
Undulator Vacuum System
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Undulator Moves In & Out
Undulator
Vacuum Chamber with Supports
Vacuum Chamber & Bellows
Design
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Supports
Chamber Strongback
Tubular Chamber
6 mm OD X 5 mm ID
Vacuum Chamber & Bellows
Prototype Design
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Chamber Drawings
Vacuum Chamber & Bellows
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Vacuum Chamber & Bellows
Bellows Design
Drawn by SH Lee
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Vacuum Chamber & Bellows
Drawn by SH Lee
Bellows Design (Expanded View)
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Status of Prototype Chamber
Drawings Complete
Outside shops have completed all quotations
All orders have been issued
ANL shop work orders are in place
Fabrication to complete in December 2004
Bellows
Assembly and parts design complete
Need to draft assembly and part drawings
Undulator Vacuum Chamber
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Vacuum System System Layout
Short Break Section
Long Break Section
Vacuum Pressure within the System
Undulator Vacuum System
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
System Layout
Vacuum System
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Vacuum System
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Short Break Section Schematic
Vacuum System
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Vacuum System
Drawn by SH Lee
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Long Break Section Schematic
Vacuum System
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Vacuum System
Drawn by SH Lee
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Vacuum Pressure within the System
Red is at Tube Mid-Point
Blue is Average
Vacuum System
1 10 100 1 1031 10
8
1 107
1 106
1 105
1 104
2.191 105
1.378 108
PR
PRa
1201 Timehours
Torr
(Thermal Desorption only)
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Vacuum SystemVacuum Pressure within the System
(includes Thermal Desorption plus Photon Stimulated Desorption)
Red is at Tube Mid-Point
Blue is Average
Torr
hours1 10 100 1 10
31 108
1 107
1 106
1 105
1 104
2.203 105
9.347 108
PRPe
PRPa
1201 Time
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Undulator Vacuum System/Mechanical
Beamline Diagnostics RFBPM
Different type under consideration
Highlights of Schedule
Vacuum Testing of Diagnostics ComponentsWhat drives this issue
Status of Testing
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Beamline Diagnostics
C-Band RFBPM now being considered instead of X-Band
C-Band has the possibility of using industry supplied electronics
According to published literature resolution ~30 nm
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Highlights of the ScheduleDesign work to start March 2005
Timing of Design work based of funding during Continuing Resolution
Use intervening time to research C-Band RFBPM (ANL)
Goal is to have BPM mechanical design by June 2005
Goal is to have (3) test BPMs by September 2005
Currently this schedule is undergoing a review
Beamline Diagnostics
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Beamline DiagnosticsVacuum Testing of Diagnostics Components
What drives this issue
The Diagnostics Station is considering the use of motion components in the vacuum section where we do not have a lot of experience.
Slides and Stages
Motors
The initial concept was to put the motion components in the vacuum for reasons of positional accuracy.
The design is at a point where changes are possible to move things in and out of vacuum
The intention is to subject components to residual gas analysis and outgassing measurement to qualify them for use.
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Beamline Diagnostics
Sample Chamber
ColdCathodegauge
ResidualGas
Analyzer
ManualValve
ManualGateValve
Turbo Pump
IonGauge
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Beamline DiagnosticsStatus of Testing
A draft test procedure has been written that covers both residual gas analysis and outgassing measurement.
The Test Set-up is assembled
The Set-up has completed a troubleshoot/ clean-up process
The Set-up is in the process of establishing a base performance profile
Suppliers are being contacted for test samples
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Schedule
Diagnostics
Vacuum System
Description Early FinishComplete Fabrication of Wire Scanner Prototype 29-Apr-05Complete Fabrication of OTR Prototype 29-Apr-05Design of Diagnostics Test Station Compl 31-May-05Prototype RFBPM Design Complete 31-May-05Prototype RFBPM Fabrication Complete 29-Aug-05Diagnostics Prototype Testing Complete 23-Mar-06OTR Final Production Design Complete 18-Apr-06Prototype RFBPM Testing Complete 17-Feb-06
Prototype Bellows Fabrication Complete 31-May-05Vacuum Chamber Prototype Testing Complete 29-Jul-05Prototype Bellows Testing Complete 29-Aug-05Production Chamber Design Complete 28-Sep-05Bellows Final Design Complete 27-Oct-05
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Conclusions: Prototype Chamber construction progressing The prototype Bellows has been modeled and after
issuing drawings it will enter the fabrication phase.The order of the Beamline Components is still
undergoing some adjustments but it is firming to allow design of the cradle assembly
A new direction for the RFBPM is being considered and work on it is schedule for March 2005
Motion components vacuum testing has just entered the first stage of testing.
Questions
Undulator Vacuum System / Chamber Design
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
END
Dean R Walters
Undulator Vacuum System [email protected]
October 12-13, 2004Facility Advisory Committee
Resulting of Outgassing CalculationsAPPENDIX
q2c 8.771 1010 q12c 1.222 10
10 q24c 4.852 1012 q120c 8.261 10
13
Outgassing
Calculation of Outgassing rates using a time rate of change formula
Copper Outgassing that is mechanically polished
For the t<12 hours For the t> 12 hours
c 1.1 qc 1.88 109 c 1.1 qgc 1.6 10
10
qtc t( )qc
t( )c
qTc t( )qgc
t( )c
t is in seconds t is in seconds
Stainless Steel Outgassing
s .5 qs 1.7 109 s .7 qgs 4.6 10
10For the t<12 hours For the t> 12 hours
qts t( )qs
t( )s
qTs t( )qgs
t( )s
q2s 1.046 109 q12s 2.986 10
10 q24s 4.973 1011 q120s 1.612 10
11