Back to Search
Start Over
Position-Sensitive Magnetic Calorimeters for Lynx
- Source :
- Journal of Low Temperature Physics. 199:916-922
- Publication Year :
- 2020
- Publisher :
- Springer Science and Business Media LLC, 2020.
-
Abstract
- We describe the performance of position-sensitive metallic magnetic calorimeter X-ray detectors for potential future astrophysics missions, such as Lynx. The motivation behind this is to achieve a large focal plane area by increasing the number of pixels compared to the number of readout channels (called hydra). The detector consists of a $$5 \times 5$$ array of gold absorbers thermally coupled to a paramagnetic sensor. Since each absorber has a different thermal link to the sensor, it generates a different pulse shape and enables discrimination of pixel position. Recently, we have been successfully able to discriminate 25 averaged pulse shapes by means of rise-time and pulse height. The measured pulse shapes and distribution agree well with the modeling results. The estimated energy resolutions based on the pulse height and noise data we measured are 2.8–3.7 eV for $$\hbox {MnK}\alpha $$ X-ray photons at 50 mK.
- Subjects :
- Physics
Photon
Pixel
business.industry
Detector
Condensed Matter Physics
01 natural sciences
Noise (electronics)
Atomic and Molecular Physics, and Optics
010305 fluids & plasmas
Calorimeter
Pulse (physics)
Optics
Cardinal point
0103 physical sciences
General Materials Science
010306 general physics
business
Energy (signal processing)
Subjects
Details
- ISSN :
- 15737357 and 00222291
- Volume :
- 199
- Database :
- OpenAIRE
- Journal :
- Journal of Low Temperature Physics
- Accession number :
- edsair.doi...........4c00e5f0c9b717b0a36e94c9841e6a13