Effective Area
180 cm2 at 6 keV
Field of View
3.1′ × 3.1′
Energy Resolution
< 7 ev at 6 keV
Resolve consists a 6 pixel x 6 pixel X-ray calorimeter spectrometer. Resolve is directly analogous to the SXS instrument on Hitomi, using many of the SXS spare components. There are 35 active pixels and one inactive corner pixel. The calorimeter is enclosed in a dewar, cooling the detector at 50 mK, with a liquid helium tank anticipated to last three years. Thereafter, the instrument is cooled via mechanic cooling with reduced sensitivity.
Additional components of the Resolve detector include:
- A gate valve placed on top of the dewar to protect during initial operation and removed in normal operation.
- A six filter wheel, mounted 90 cm from the spectrometer, to use in normal operation modes. The filters are : two empty positions (i.e. no filter), a radioactive 55Fe calibration source, a molybdenum neutral density filter to attenuate X-rays for bright sources, and beryllium and polyimide-aluminum filters to exclude X-rays outside specific energy ranges.
- A Modulation X-ray Source (MXS) mounted below the filter wheel. When turned on, this illuminates the entire detector for calibration. It consists of 4 LEDs operating in pairs with targets composed of Cu/Cr and Al/Mg.
