Fast integrated gaseous detector with single-photon resolution

Ralf-Hendrik Menk; Amir Sarvestani; Hans-Juergen Besch; Albert Heinrich Walenta

doi:10.1117/12.368190

6 October 1999 Fast integrated gaseous detector with single-photon resolution

Ralf-Hendrik Menk, Amir Sarvestani, Hans-Juergen Besch, Albert Heinrich Walenta

Proceedings Volume 3770, Medical Applications of Penetrating Radiation; (1999) https://doi.org/10.1117/12.368190
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Gaseous detectors are excellent candidates for x-ray imaging devices which are suitable in the energy range between 5 and 90 kV. Especially the extreme low inherent noise floor which in principle is limited by the read out electronics only in combination with the high flexibility in the choice of gases and the geometry result in high detective quantum efficiency values (DQE). A DQE close to one is valuable especially in medical imaging applications where in general the image quality is dose limited. Moreover, recent developments in gas amplification structures such as the Micro-CAT allow fast imaging with a single photon precision also for integrating devices resulting in high DQE values even for low photon flux applications.

Citation Download Citation

Ralf-Hendrik Menk, Amir Sarvestani, Hans-Juergen Besch, and Albert Heinrich Walenta "Fast integrated gaseous detector with single-photon resolution", Proc. SPIE 3770, Medical Applications of Penetrating Radiation, (6 October 1999); https://doi.org/10.1117/12.368190

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