Heavy Metal: An encounter with the Psyche spacecraft
Planetary Radio: Space Exploration, Astronomy and Science
00:00
X-Ray Detection on Mars
It's a 22 centimeter beam when it starts at mars. And if you look at it in terms of its angular width, it's about 15 micro radians. By the time it gets to earth, it's spreading out due to defraction. It's a few thousand kilometers by the time it got to california. So you still need a pretty sensitive receiver and one is attached to that 200 inch hale telescope. Y so we have a 300 micron aray detector, which is made up of a array of super conducting nana wires. These are made of tungston selicide, and they are cooled down to sub kelvin. Basically, whenever photon
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