12-ID Upgrade to Two Independent Beamlines - Monthly Update Advanced Photon Source Randall Winans Charles Kurtz, Byeongdu Lee, Soenke Seifert Chemistry, Environmental, and Polymer Science Group X-ray Science Division Oliver Schmidt and Soon-Hong Lee Mechanical Engineering and Design APS Engineering Support Division May 23, 2008
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12-ID Upgrade to Two Independent Beamlines - Monthly Update
12-ID Upgrade to Two Independent Beamlines - Monthly Update. May 23, 2008. Randall Winans Charles Kurtz, Byeongdu Lee, Soenke Seifert Chemistry, Environmental, and Polymer Science Group X-ray Science Division Oliver Schmidt and Soon-Hong Lee Mechanical Engineering and Design - PowerPoint PPT Presentation
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12-ID Upgrade to Two Independent Beamlines - Monthly Update
Advanced Photon Source
Randall Winans
Charles Kurtz, Byeongdu Lee, Soenke Seifert
Chemistry, Environmental, and Polymer Science Group
X-ray Science Division
Oliver Schmidt and Soon-Hong Lee
Mechanical Engineering and Design
APS Engineering Support Division
May 23, 2008
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12 - ID Upgrade to Two Beamlines with Canted Undulators
Versatile Anomalous and time resolved SAXS/WAXS/GISAXS/USAXS beamline [12-ID-C]
– Technically complicated experiments which takes full advantage of insertion device capabilities
– Pink beam – high flux for fast experiments– Wide Q range 0.001 – 5.0– Wide energy range 4.5 – 36 Kev– Combined experiments – XANES, MS, DSC
Surface Scattering [12-ID-D]– MOCVD– Diffractometer (from 12-ID-B)– Wide energy range 4.5 – 36 Kev– 40 cm mirror in 12-ID-C
The outboard x-ray beam, originating from the first insertion device will supply beam to 12-ID-C. Initially at an outboard trajectory of 0.5 mrad of the centerline, this beam will be deflected by the existing 1200 mm long mirror, located at 31.4 meters from the straight section, by 4mrad, to a total of 3.5 mrad inboard
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12-ID-C/D Monochromator Upgrade
Before the upgrade After the upgrade
Diffraction type Si(111) Si(111)
Second Crystal Offset 35 mm Constant offset
20 mm Constant offset
Energy range 4.2KeV-28 KeV 4.5KeV-36 KeV
Coolant Liquid Nitrogen Liquid Nitrogen or (water)
1st Xtal Cooling type Direct cooling Indirect cooling
Diffractometer Huber Huber
Heidenheim encoder No Yes
Motor type Stepper motor Stepper motor
Vacuum 2 Ion getter pumps 10 -8 Torr 2 Ion getter pumps 10 -8 Torr
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12-ID-C/D Monochromator Upgrade
A design for indirect cooling of the first crystal already implemented in 20-ID is planned along with modifications
to the 1st crystal Compton shielding
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Layout of 12-ID Upgrade
HorizontalMirror
B Line
A Hutch
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12-ID-B Beamline with a large offset Monochromator
1025.4mm678.4 mm
860
mm
C 111
51.8° (2·B1)
26.8° (2·B2)
1704.1 mm
Schematic diagram of both crystals during operation with a nominal take-off angle (2θ) of 26° ~ 52° from the centerline
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12-ID-B Beamline with a large offset Monochromator
Parameters Value
Energy range (keV) for FOE monochromator
6.9 ~ 13.0 (Diamond111)
Resolution E/E 1 x 10-4
Flux (photon/mm2/sec) 1 x 1013 @10 keV
Beam size (horiz x vert), unfocused 1 mm x 1 mm
January 2008 – Accepted bid from ACCEL for $550.2K
Ordered May 2008 $600K
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Layout of 12-ID Upgrade
New Mini-hutch
Ordered -InstalledSep 08
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Layout of 12-ID Upgrade
USAXSMirrors
VerticalMirror
New Mini-hutch
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Layout of 12-ID Upgrade
B C
DSAXS ChamberUSAXS
TRSAXS
Huber MOCVD
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Proposed 12-ID Beamlines
B Branch
C/D Branch
D
C
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Layout of 12-ID Upgrade
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Layout of 12-ID Upgrade
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Air Handling
The hutches will be connected directly to the air system to maintain a more constant temperature.
It has been observed that the 12-ID-C and B hutches can become very much warmer than the experimental hall which results in wide temperature swings when the doors are opened.
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Possible Time-line for 12-ID Upgrade
2005 - Vacuum chamber and one shorten Undulator A installed and some canted front end parts ordered
2007 - Funding for mini-hutch and remaining canted front end partsPDR approved for mini-hutch
2008 – Order large offset mono
September long shutdownConstruction of mini-hutchInstallation of canted front end Installation of second undulator (U30s in-line)
2009 – May Shutdown Installations (depending on funding)Cant the two undulatorsLarge offset monoSAXS vacuum chamber in 12-ID-B
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12 –ID Horizontal Mirror
In April 2006 the mirror overheated to 190 C when the cooling water was turned off but the heaters remained on(heaters are used to focus the beam). Indium metal (mp 157 C) which is which is used to ensure contact with the copper cooling blocks and the heaters melted. From visual inspection the mirror appeared to be free of metal particles
However, there appeared to be some degradation in performance. Over this long shut-down the mirror has been removed, inspected and
characterized for slope error and roughness. A roughness on average of 5 A was measured The mirror is being re-installed
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Layout of 12-ID Upgrade
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12 -ID Upgrade to Two Beamlines with Canted Undulators
APS Strategic Plan calls for 12-ID to become a dedicated Small angle X-ray scattering (SAXS) facility.
The 12-ID SAXS facility (FY 1996 DOE Scientific Facilities Initiative) is 50% of the GUP beamtime with x2 oversubscription.
SAXS publications - 124 and users - 291 The increasing demand for SAXS beam time has been driven by:
– Research into the structure and dynamics of nanoscale materials
– Increased interest in soft matter
– Time-dependent structural investigations Plan was endorsed by the SAC review of Sector 12 in March, 2005
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Ancillary Equipment
Flow cells, stop flow capability Environmental control (heating, cooling) for in situ experiments Sample changers for high throughput experiments Gas flow control system for multiple and reactive gases Other complementary techniques such as mass spectrometry