Calibration device and method of using same

Details Calibration device and method of using same Calibration device and method of using same

2007-04-11

2008-08-19

Yun, Jurie (Department: 2882)

X-ray or gamma ray systems or devices

Accessory

Testing or calibration

C378S165000, C378S166000, C250S252100

Reexamination Certificate

active

07413345

ABSTRACT:
A calibration apparatus for the calibration of patient dose measurement and control systems of the character used in diagnostic radiology. The calibration apparatus includes a novel ion chamber that is of rigid construction. The ion chamber has a radiation input face that incorporates an optical alignment target or reticule having markings generally corresponding to a range of field sizes and shapes. A series of radio-opaque targets are embedded beneath the surface of the optical target to facilitate alignment using a radiation image.

REFERENCES:
patent: 5041730 (1991-08-01), Attix
patent: 2006/0266951 (2006-11-01), Fritsch et al.

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