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Count Rate Linearity Results

Count Rate Linearity measurements were conducted at the XRCF to verify one-to-one input photon, output event detection performance of the HRC under normal operating conditions. The HRC will nominally be limited to observing objects with counting rates below 5 cts/s in the on-axis focused beam (i.e. less than 2 cts/s per micro-channel pore).

To date several analyses have been performed on the data and all are in agreement that the detectors' performance was linear at rates up to twice the normal operating limits.

The following are excerpts from two SPIE papers presented in 1997 (vol. 3114):

For the HRC-I:

For the HRC-S:

Results from the ASC analysis of both detectors:

Contact CXC Calibration (cxccal@cfa.harvard.edu) for further information

Last modified: 09/27/12

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