Comparison of the charge cloud shapes in a CCD produced by x-ray photons at various energies

Junko Hiraga; Hiroshi Tsunemi; Kumi Yoshita; Haruyoshi Katayama; Kiyoshi Hayashida

doi:10.1117/12.366511

22 October 1999 Comparison of the charge cloud shapes in a CCD produced by x-ray photons at various energies

Junko Hiraga, Hiroshi Tsunemi, Kumi Yoshita, Haruyoshi Katayama, Kiyoshi Hayashida

Author Affiliations +

Proceedings Volume 3765, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X; (1999) https://doi.org/10.1117/12.366511
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

A mesh experiment for the x-ray CCD enables us to specify the interaction position of the x-ray photon with subpixel resolution. There are two types of experiments: a single- pitch mesh experiment and a multi-pitch mesh experiment. Using the multipitch mesh experiment, we have established the method to measure the charge cloud shape inside the CCD produced by an x-ray photon. We can measure signal outputs from the pixel according to the interaction position of x- rays. Finally, we obtain, in detail, the charge cloud shape which can be well represented by an asymmetric Gaussian function. The symmetry of the charge cloud shape is probably due to the asymmetry of the electric field inside the CCD.

Citation Download Citation

Junko Hiraga, Hiroshi Tsunemi, Kumi Yoshita, Haruyoshi Katayama, and Kiyoshi Hayashida "Comparison of the charge cloud shapes in a CCD produced by x-ray photons at various energies", Proc. SPIE 3765, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X, (22 October 1999); https://doi.org/10.1117/12.366511

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