After two years of orbital operation, the IPC - a soft X-ray position sensitive proportional counter - continues to perform well after some initial gain changes, and is the most widely used focal plane instrument of the Einstein Observatory. X-ray images of several thousand cosmic X-ray sources have been obtained. Particle backgrounds are less than expected. The calibration of the instrument with respect to gain variations and spatial linearity is being refined by in-flight measurements.
In orbit performance of the Einstein observatory/HEAO-2 imaging proportional counter
Bahneigenschaften des abbildenden Proportionalzaehlers des Einstein-Observatoriums
IEEE Transactions on Nuclear Science ; 28 , 1 ; 869-874
1981
6 Seiten, 7 Bilder, 1 Tabelle, 7 Quellen
Article (Journal)
English
Imaging proportional x-ray counter for HEAO
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