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CT DETECTOR-REQUIREMENTS

Physics

CT DETECTOR-REQUIREMENTS

1. Must be small to allow good spatial resolution (single slice scanners have 600– 900 in an arc).

2. High detection efficiency for X-rays in the CT energy range.

3. Fast response time (with negligible afterglow).

4. Wide dynamic range of X-ray intensities (e.g. from zero attenuation when the beam passes to the side of the patient to very high attenuation in a lateral projection of a heavy patient).

5. Stable, noise-free response.


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REFERENCES

1. Bushberg, J. T. (2012). The essential physics of medical imaging. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. Find it at Amazon
2. Heggie, J. C., Liddell, N. A., & Maher, K. P. (1997). Applied imaging technology. Melbourne: St. Vincents Hospital.

Ⓒ A. Manickam 2018

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