X-ray or gamma ray systems or devices – Accessory – Testing or calibration
Patent
1990-11-21
1992-11-17
Howell, Janice A.
X-ray or gamma ray systems or devices
Accessory
Testing or calibration
378204, 2502521, G01D 1800
Patent
active
051649780
ABSTRACT:
The subject invention provides a means for testing the operating characteristics of an image reconstructing apparatus, the means including a high resolution gauge for determining the resolution of the apparatus and including a bead which is adapted for testing the modulation transfer function of the apparatus. A method of producing the high resolution gauge is also provided.
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Goodenough David J.
Levy Joshua R.
Howell Janice A.
The Phantom Laboratory, Incorporated
Wong Don
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