Neutral atom imaging unit, neutral atom imager, neutral atom imaging method, and space detection system

A neutral atom imaging unit, comprising at least one set of detection units, and the at least one set of detection units includes:

• at least one semiconductor detector line array, wherein each semiconductor detector line array includes a semiconductor detector strip composed of a plurality of semiconductor detectors;
• and
• at least one modulation grid, wherein the at least one modulation grid is arranged in front of the at least one semiconductor detector line array and has a distance D from the semiconductor detector line array, and corresponds to the at least one semiconductor detector line array one to one, the modulation grid performs Fourier transform on an incident neutral atom;
• wherein the modulation grid includes a slit and a slat forming the slit, an extending direction of the semiconductor detector strip is consistent with that of the slit of the modulation grid;
• the modulation grid includes a plurality of grid periods, each of the grid periods includes n slits, a width of the semiconductor detector strip is d, and a width wi of an i-th slit of the modulation grid satisfies the following relationship:
• w
• i
• =
• n
• i
• ×
• d
• .