Facet
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Modules
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| This page is http://space.mit.edu/HETG/ia/perform_3.html | 1998-12-06 |
| HETG Facet --> |
| Subassembly Grating Performance Tests |
| LETG Modules <-- |
| Grating Period | Grating "dp/p" | Rowland Geometry | |
| HETG : | Laser Reflection Test w/ NIST Transfer Standards | Laser Reflection Test | Error Budget, IDL Ray-trace Code |
| LETG : | Diffractometer Test (lambda = 0.4416 um) | Diffractometer Test | Error Budget, "ARTP" Ray-trace Code |
| Validate Efficiency Model | Facet Efficiency | Vignetting Terms | Grating Alignment | |
| HETG : | Samples and Reference Gratings Tested at NSLS, BESSY | X-GEF X-ray Tests (on each facet) | Determined by Analysis | Polarization Alignment |
| LETG : | Samples Tested at BESSY and in Lab Beamline (ZETA at MPE) | Near-IR Metrology (on each facet) | Determined by Analysis | Diffraction Alignment |
| HETG Calibration: http://space.mit.edu/HETG/xrcf.html | perf-3, --> |