| Updated 16 June 2006 | Instrument - Publications |
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Characteristics Sample holders Ancillary equipment GSAS parameter file VRML model | |
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| SEPD instrument | ||
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| Instrument Scientist: Bob Von Dreele | ||
| Scientific Associate: Simine Short | ||
| Beam Line | F5 |
| Moderator | 100K liquid methane |
| Wavelength Range (frame overlap limit) | 0.5 - 7.55 Å |
| Beam Size | 1.27 cm wide, 5 cm high |
| Thermal Flux on Sample | 1 x 107 neutrons cm-2 s-1 |
| Moderator-to-Sample Distance | 14 m |
| Scattered Flight Path | 1.5 m |
| Detectors | 10 atm 3He proportional counters; 1.27 cm dia x 38 cm long |
| Sample Amount | 0.05 - 20 g |
| Typical Data Collection Times | 5 h for 5 g, 24 h for 0.1 g for precision Rietveld refinements |
| Time-Dependent Studies | useful data in ~5 min for large samples in favorable cases |
| 2Q | Dd/d (FWHM) | No of Detectors | Detector Area (srd) | dmin(Å) | dmax(Å) | |
| Bank 1 | ±145° | 0.0034 | 80 | 0.172 | 0.33 | 4.02 |
| Bank 2 | ±90° | 0.0054 | 40 | 0.086 | 0.45 | 5.41 |
| Bank 3 | ±44° | 0.0098 | 24 | 0.052 | 0.85 | 10.21 |
| Bank 4 | ±22° | 0.047 | 14 | 0.030 | 1.7 | 20.25 |
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| Resolution of SEPD as a function of detector position (2 Q) and d-spacing. |
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| Send Comments to | Instrument - Publications |