1-ID: Sector 1, Insertion Device Beamline
Responsible Scientists
Scientific Programs
- High-energy x-ray optics development
- Powder and pair-distribution function measurements
- Single-grain studies
- Coupled SAXS/WAXS studies
Source Characteristics
| Insertion device: APS Undulator A |
| No. of Poles |
72 |
| Undulator Period |
3.3 cm |
| Device Length |
2.4 m |
| Minimum Gap |
11 mm |
Optical Components
| Component |
Distance from Center of ID |
Comment |
| Front end separation window |
24.8 m |
500 microns Be. No additional filters. |
| Filters |
25.7 m |
Two banks of graphite of various thicknesses up to 2 mm. |
| White beam slits (L1) |
26.9 m |
|
| Kohzu double crystal monochromator. |
29.8 m |
LN 2 Cooling. With Si (111) 6 to 19 keV. With Si (311) 9 to 48 keV. Scans energy very well. Resolution dE/E~1e-4 |
| High energy monochromator |
34.0 m |
LN 2 Cooling. Energy range > 40 keV. Does not scan energy well. Resolution dE/E ~ 1e-3 |
| Post-monochromator optics |
34-57 m |
See the high-energy optics section of this website |
1-ID-A is a first optics enclosure (FOE) which houses the front-end separation window, white-beam filter, white-beam slits, Kohzu double-crystal monochromator, white-beam stop, and monochromatic-beam shutter. The equipment in this station is permanent and, generally, does not change from experiment to experiment.
1-ID-B is an experimental station that can take either white beam or monochromatic beam from 1-ID-A. It can be used for experiments, but due to its relatively small size, it is most often used to condition the x-ray prior to transmission to 1-ID-C. The high-energy monochromator is located at the upstream end of 1-ID-B. The center of the 1-ID-B station is 36 m from the center of the ID straight section. Recent work has focused on conditioning the x-ray beam (focusing/reducing energy width) after the high-energy monochromator.
1-ID-C is the work horse experimental station on the 1-ID beamline. The center of this station is 60 m from the center of the ID straight section. The station is 7 m is length (along the beam path) and 4 m wide. Only monochromatic beam can be transmitted to 1-ID-C (the transport is offset 24 mm above the white beam).
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