Contrast phantom

Details Contrast phantom Contrast phantom

2005-06-14

2005-06-14

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Accessory

Testing or calibration

C378S018000

Reexamination Certificate

active

06905245

ABSTRACT:
A contrast phantom for assessing the characteristic, exposure-related signal and noise response and dynamic range of an image recording and detection system. The contrast phantom is composed of an absorber medium having a sudden K-edge absorption change of the mass attenuation coefficient for at least one photon energy level in-between the mean and maximum energies of the lowest energy spectrum it is subjected to. The invention further provides a method for assessing the characteristic, exposure-related signal and noise response and dynamic range of an image recording and detection system with the aforementioned contrast phantom.

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Wang et al., “Comprehensive and automated image quality performance measurement of computed radiography systems”, Proceedings of SPIE, 2001, vol. 4320, pps. 308-315.
Search Report for EP 02 10 0792 (Jan. 14, 2003).

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