Table 2. Designed features of the four operational modes of TPS 13A, with beam sizes and divergences in full width at half-maximum (FWHM, 2.35 σ). Note that the IU24 source sizes and divergences shown in Table 1 ▸ are with 1 σ. Microbeam features are calculated with a microslits opening of 10 µm by 10 µm.
| Operational modes | High flux (DMM) | USAXS Si(111) / Si(311) | ASAXS (DCM) | Microbeam (DCM) |
|---|---|---|---|---|
| Operation energy range (keV) | 7–15 | 4–15 | 4–23 | 4–23 |
| Horizontal demagnification | 1.36:1 | 1.61:1 | ||
| Vertical demagnification | 1.43:1 | 1.45:1 | ||
| Beam size H × V (µm @ 52 m) | 190 × 52 | 190 × 36 / 190 × 36 | 190 × 36 | 340 × 36 @ 52 m, 7 × 5 @ 40 m |
| Beam divergence (µrad) | 60 × 29 | 32 × 29 / 12 × 29 | 60 × 29 | 70 × 3.8 |
| Energy resolution | 0.8% | 0.02% | ||
| Flux (photons s−1) @ 500 mA | 4 × 1014 | ∼1012 / ∼1011 | 2 × 1013 | 1 × 1010 |