Pile-up model for dispersed spectra

John E. Davis

doi:10.1117/12.461476

11 March 2003 Pile-up model for dispersed spectra

John E. Davis

Proceedings Volume 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy; (2003) https://doi.org/10.1117/12.461476
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

The observation of a bright X-ray source by the Chandra X-ray Observatory's High Energy Transmission Grating Spectrometer (HETGS) can be compromised by photon pile-up in the CCD leading to false absorption features in the observed spectrum. A method for removing the effects of pile-up in a dispersed grating spectrum is presented. The effectiveness of the technique is demonstrated through its application to the HETGS observation of 4U 1636-53, a bright X-ray binary system.

Citation Download Citation

John E. Davis "Pile-up model for dispersed spectra", Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); https://doi.org/10.1117/12.461476

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