The Hinode X-Ray Telescope (XRT): Camera Design, Performance and Operations
- First Online:
- 162 Downloads
The X-ray Telescope (XRT) aboard the Hinode satellite is a grazing incidence X-ray imager equipped with a 2048×2048 CCD. The XRT has 1 arcsec pixels with a wide field of view of 34×34 arcmin. It is sensitive to plasmas with a wide temperature range from < 1 to 30 MK, allowing us to obtain TRACE-like low-temperature images as well as Yohkoh/SXT-like high-temperature images. The spacecraft Mission Data Processor (MDP) controls the XRT through sequence tables with versatile autonomous functions such as exposure control, region-of-interest tracking, flare detection, and flare location identification. Data are compressed either with DPCM or JPEG, depending on the purpose. This results in higher cadence and/or wider field of view for a given telemetry bandwidth. With a focus adjust mechanism, a higher resolution of Gaussian focus may be available on-axis. This paper follows the first instrument paper for the XRT (Golub et al., Solar Phys.243, 63, 2007) and discusses the design and measured performance of the X-ray CCD camera for the XRT and its control system with the MDP.
KeywordsSun: corona Sun: X-rays
Unable to display preview. Download preview PDF.
- Ichimoto, K., Lites, B., Elmore, D., Suematsu, Y., Tsunete, S., Katsukawa, Y., et al.: 2007, Solar Phys., submitted. Google Scholar
- Janesick, J.R.: 2000, Scientific Charge-Coupled Devices, SPIE, Bellingham. Google Scholar
- Shimizu, T., Nagata, S., Tsuneta, S., Tarbell, T., Edwards, C., Shine, R., et al.: 2007, Solar Phys., in press. Google Scholar
- Suematsu, Y., Tsuneta, S., Ichimoto, K., Shimizu, T., Otsubo, M., Katsukawa, Y., et al.: 2007, Solar Phys., submitted. Google Scholar
- Tarbell, T.D., et al.: 2007, Solar Phys., submitted. Google Scholar
- Tsuneta, S., Suematsu, Y., Ichimoto, K., Shimizu, T., Otsubo, M., Nagata, S., et al.: 2007, Solar Phys., submitted. Google Scholar