A new event analysis method for the X-ray photon count CCD

Details A new event analysis method for the X-ray photon count CCD A new event analysis method for the X-ray photon count CCD

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..599..478t&link_type=abstract

X-RAY ASTRONOMY: Stellar Endpoints,AGN, and the Diffuse X-ray Background. Edited by Nicholas E. White, Giuseppe Malaguti, and G

Astronomy and Astrophysics

Astronomy

1

Charge-Coupled Devices, Image Detectors, And Ir Detector Arrays, X-Ray Sources, X-Ray Bursts, Background Radiations

Scientific paper

We report here a new event analysis method ``two-dimensional Gaussian function fitting'' for the X-ray photon count CCD camera. A grade method employed in the ASCA satellite is widely used in the event analysis which excluded the extended event as non X-ray event. Our new method can save extended X-ray events without degradation of the energy resolution and without decrease of the background rejection efficiency. It increases the detection efficiency of X-ray photons by 7.5% at 7 keV and 25% at 12.5 keV, respectively. We will employ this method in the X-ray CCD camera onboard ASTRO-E to be launched in February, 2000. .

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