Instruments Operation Science InformationMiscellaneous
| XRT | X-Ray Telescope - Analysis filters |
|---|
XRT has two filter wheels for X-ray analysis filters and a G-band filter. These filter wheels have total of 10 positions; nine for the X-ray analysis filters and one for the visible-light filter. The X-ray analysis filters for the XRT are listed in a table below. It is optimized to provide temperature maps over the range of 6.1 < log T < 7.5. Plots shows the temperature response functions of the telescope including the entrance filter, the effective area of the X-ray mirror, and the measured quantum efficiency of the flight CCD.
Specifications of X-ray analysis filters
| Name | Material | Thickness | Substrate (Thickness) |
|---|---|---|---|
| Thin-Al/Mesh | Al | 1600 Å | Mesh |
| Thin-Al/Poly | Al | 1250 Å | Polyimide (2500 Å) |
| C/Poly | C | 4800 Å | Polyimide (2500 Å) |
| Ti/Poly | Ti | 2300 Å | Polyimide (2500 Å) |
| Thin-Be | Be | 9 um | Mesh |
| Med-Be | Be | 30 um | - |
| Med-Al | Al | 12.5 um | - |
| Thick-Al | Al | 25 um | - |
| Thick-Be | Be | 1 mm | - |
