Matching the science to the instrument: a study of a hybrid calorimeter design for Constellation-X

Details Matching the science to the instrument: a study of a hybrid calorimeter design for Constellation-X Matching the science to the instrument: a study of a hybrid calorimeter design for Constellation-X

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..aprn17023f&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

The design of a flight instrument always involves trade-offs. The performance of the instrument must be well matched to the science to be done. For the Constellation-X calorimeter, one wants to maximise the science capabilities of the mission by achieving high throughput, high energy resolution, and as large a field-of-view as possible. We would like to increase the field-of-view of the calorimeter as much as possible with a minimum impact on the other design parameters. In this poster we study the design of a hybrid calorimeter for Constellation-X. This hybrid calorimeter is composed of a central array of single-pixel transition-edge-sensors (TES) with high energy resolution and high throughput. This central “hot core” is surrounded by an array of distributed-readout imaging detectors called Position Sensitive TESs (PoSTs). With this design one can increase the overall number of pixels and the field-of-view of the Constellation-X calorimeter without increasing the number of readout channels. We explain the concept and study the trade-offs in count rate and field of view as well as the science that could be done with such a detector.

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