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A photon-counting photodiode array detector for far ultraviolet (FUV) astronomy (1982)

Bowers, C. ; Pembroke, R. ; Hartig, G. F. ; [et al.]

In: CASI

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Publication Date: 2019-06-28

Description: A compact, stable, single-stage intensified photodiode array detector designed for photon-counting, far ultraviolet astronomy applications employs a saturable, 'C'-type MCP (Galileo S. MCP 25-25) to produce high gain pulses with a narrowly peaked pulse height distribution. The P-20 output phosphor exhibits a very short decay time, due to the high current density of the electron pulses. This intensifier is being coupled to a self-scanning linear photodiode array which has a fiber optic input window which allows direct, rigid mechanical coupling with minimal light loss. The array was scanned at a 250 KHz pixel rate. The detector exhibits more than adequate signal-to-noise ratio for pulse counting and event location.

Keywords: ASTRONOMY

Type: NASA-CR-168551

Format: application/pdf

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