Undulator Vacuum, Mechanical
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Transcript Undulator Vacuum, Mechanical
Undulator Vacuum System/Mechanical
By
Dean R Walters
Advanced Photon Source
Argonne National Laboratory
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Undulator Vacuum System/Mechanical
Talk Outline
Undulator Chamber & Bellows
Vacuum System
Beamline Diagnostics
Schedule Highlights
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Undulator Vacuum System
Undulator Chamber & Bellows
Chamber Design
Bellows Design
Status of the Prototype
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Vacuum Chamber & Bellows
Design
Undulator
Vacuum Chamber
with Supports
Undulator
Moves In & Out
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Vacuum Chamber & Bellows
Prototype Design
Chamber Strongback
Tubular Chamber
6 mm OD X 5 mm ID
Supports
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Vacuum Chamber & Bellows
Chamber Drawings
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Vacuum Chamber & Bellows
Bellows Design
Drawn by SH Lee
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Vacuum Chamber & Bellows
Bellows Design (Expanded View)
Drawn by SH Lee
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Undulator Vacuum Chamber
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
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Undulator Vacuum System
Vacuum System
System Layout
Short Break Section
Long Break Section
Vacuum Pressure within the System
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Vacuum System
System Layout
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Vacuum System
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Vacuum System
Short Break Section Schematic
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Vacuum System
Drawn by SH Lee
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Vacuum System
Long Break Section Schematic
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Vacuum System
Drawn by SH Lee
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Vacuum System
Vacuum Pressure within the System
(Thermal Desorption only)
Red is at Tube Mid-Point
1 10
4
1 10
5
1 10
6
1 10
7
5
2.19110
Blue is Average
TorrPR
PRa
8
1.37810 1 10 8
1
10
1
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
100
hours
Time
Dean R Walters
[email protected]
1 10
3
120
Vacuum System
Vacuum Pressure within the System
(includes Thermal Desorption plus Photon Stimulated Desorption)
2.20310
1 10
4
1 10
5
5
Red is at Tube Mid-Point
Blue is Average
Torr
PRPe
6
1 10
PRPa
1 10
7
8
9.34710 1 10 8
1
October 12-13, 2004
Undulator Vacuum System
1
10
1 10
100
Time
Facility Advisory Committee
hours
3
120
Dean R Walters
[email protected]
Undulator Vacuum System/Mechanical
Beamline Diagnostics
RFBPM
Different type under consideration
Highlights of Schedule
Vacuum Testing of Diagnostics Components
What drives this issue
Status of Testing
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
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
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Beamline Diagnostics
Highlights of the Schedule
Design 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
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Beamline Diagnostics
Vacuum 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.
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Beamline Diagnostics
Residual
Gas
Analyzer
Sample Chamber
Manual
Valve
Cold
Cathode
gauge
Manual
Gate
Valve
Ion
Gauge
Turbo Pump
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Beamline Diagnostics
Status 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
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
Schedule
Diagnostics
Description
Complete Fabrication of Wire Scanner Prototype
Complete Fabrication of OTR Prototype
Design of Diagnostics Test Station Compl
Prototype RFBPM Design Complete
Prototype RFBPM Fabrication Complete
Diagnostics Prototype Testing Complete
OTR Final Production Design Complete
Prototype RFBPM Testing Complete
Early Finish
29-Apr-05
29-Apr-05
31-May-05
31-May-05
29-Aug-05
23-Mar-06
18-Apr-06
17-Feb-06
Vacuum System
Prototype Bellows Fabrication Complete
Vacuum Chamber Prototype Testing Complete
Prototype Bellows Testing Complete
Production Chamber Design Complete
Bellows Final Design Complete
October 12-13, 2004
Undulator Vacuum System
31-May-05
29-Jul-05
29-Aug-05
28-Sep-05
27-Oct-05
Facility Advisory Committee
Dean R Walters
[email protected]
Undulator Vacuum System / Chamber Design
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
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
END
October 12-13, 2004
Undulator Vacuum System
Facility Advisory Committee
Dean R Walters
[email protected]
APPENDIX
Resulting of Outgassing Calculations
Outgassing
Calculation of Outgassing rates using a time rate of change formula
Copper Outgassing that is mechanically polished
For the t<12 hours
c 1.1
qtc ( t)
For the t> 12 hours
qc 1.88 10
9
qc
( t)
10
c 1.1
qTc ( t)
c
qgc 1.6 10
qgc
( t)
c
t is in seconds
10
q2c 8.771 10
10
t is in seconds
13
12
q12c 1.222 10
q120c 8.261 10
q24c 4.852 10
Stainless Steel Outgassing
s .5
9
qs 1.7 10
For the t<12 hours
qts ( t)
qs
( t)
9
q2s 1.046 10
For the t> 12 hours
qgs
( t)
10
q12s 2.986 10
Undulator Vacuum System
10
qgs 4.6 10
qTs ( t)
s
October 12-13, 2004
s .7
11
q24s 4.973 10
s
11
q120s 1.612 10
Facility Advisory Committee
Dean R Walters
[email protected]