Flat x-ray image intensifer system for real-time fluoroscopy

Hiroshi Onihashi; Hiroshi Aida; Kiyumi No; Takashi Noji; Yuichi Murakoshi; Kenichi Ito; Keiichi Saito; Junsuke Koma

doi:10.1117/12.430874

28 June 2001 Flat x-ray image intensifer system for real-time fluoroscopy

Hiroshi Onihashi, Hiroshi Aida, Kiyumi No, Takashi Noji, Yuichi Murakoshi, Kenichi Ito, Keiichi Saito, Junsuke Koma

Proceedings Volume 4320, Medical Imaging 2001: Physics of Medical Imaging; (2001) https://doi.org/10.1117/12.430874
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

Abstract

We have developed new X-ray image intensifier (Flat II) system using a large-area electron multiplier for real-time fluoroscopy. This paper describes the development of prototype Flat II that has been carried out recently. The heart of new prototype is the multiplier with a smaller channel pitch (0.2 mm) located adjacent to a photo-cathode. We performed reduction of the channel pitch of multiplier, and the optimization of the geometrical arrangement- a photo-cathode, a multiplier and an output phosphor screen in order to improve the performance of Flat II. Moreover, we discuss the spatial aliasing associated with a pitch pattern of multiplier and CCD camera. Finally, physical characteristics such as modulation transfer function (MTF), etc. are discussed.

Citation Download Citation

Hiroshi Onihashi, Hiroshi Aida, Kiyumi No, Takashi Noji, Yuichi Murakoshi, Kenichi Ito, Keiichi Saito, and Junsuke Koma "Flat x-ray image intensifer system for real-time fluoroscopy", Proc. SPIE 4320, Medical Imaging 2001: Physics of Medical Imaging, (28 June 2001); https://doi.org/10.1117/12.430874

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