MODEL 161B AND 162A COLLIMATOR AND BEAM ALIGNMENT TEST TOOLS
Evaluate collimator light field and x-ray field congruence plus ensure accurate x-ray beam alignment. The Model 161B
Collimator Test Tool is designed to evaluate the collimator light field and x-ray field congruence according to the Center of
Devices and Radiological Health (CDRH) specifications. The Gammex 161B is constructed of brass so that centimeter
etchings on its surface can give a direct ruled dimension on the radiograph with a normal x-ray exposure. The collimator
test tool is calibrated to show misalignments to within 0.5 cm. The Gammex 162A Beam Alignment Test Tool provides
a simple test of the x-ray beams alignment. When used with the Collimator Test Tool, x-ray beam misalignments of 1% and
2% can be visualized without the need for measuring or calculating.
Model Number:Model 161B AND GAMMEX 162A GOLDWEI Item No.:UPGX-161B -162A
Evaluate collimator light field and x-ray field congruence plus ensure accurate x-ray beam alignment. The Gammex 161B
Collimator Test Tool is designed to evaluate the collimator light field and x-ray field congruence according to the Center of
Devices and Radiological Health (CDRH) specifications. The Gammex 161B is constructed of brass so that centimeter
etchings on its surface can give a direct ruled dimension on the radiograph with a normal x-ray exposure. The collimator
test tool is calibrated to show misalignments to within 0.5 cm. The Gammex 162A Beam Alignment Test Tool provides
a simple test of the x-ray beams alignment. When used with the Collimator Test Tool, x-ray beam misalignments of 1% and
2% can be visualized without the need for measuring or calculating. The test instrument is constructed of a plastic cylinder
16 cm (6.3 in) high with two steel balls, one at each end. The steel balls are located directly above one another so that, when
level and everything is in alignment, they will be superimposed on the radiograph. A bubble level is included so that accurate
tests can be performed with ease.
SPECIFICATIONS
Gammex 161B Collimator Test Tool
Construction . . . . Etched Brass
Dimensions . . . . . 20x25 cm (8x10 in)
Weight. . . . . . . . 200 g (6.2 oz)
Gammex 162A Beam Alignment Test Tool
Construction . . . . Acrylic Cylinder
Dimensions
Height . . . . . . . . 16 cm (6.3 in)
Diameter . . . . . . 7 cm (2.8 in)
Weight. . . . . . . . 260 g (9.2 oz
161B Collimator Test Tool sold separately
162A Beam Alignment Test Tool sold separately
Collimator and Beam
Alignment Test Tools
Model 161B AND GAMMEX 162A
Evaluate collimator light field and x-ray field congruence plus ensure accurate x-ray beam alignment. The Gammex 161B
Collimator Test Tool is designed to evaluate the collimator light field and x-ray field congruence according to the Center of
Devices and Radiological Health (CDRH) specifications. The Gammex 161B is constructed of brass so that centimeter
etchings on its surface can give a direct ruled dimension on the radiograph with a normal x-ray exposure. The collimator
test tool is calibrated to show misalignments to within 0.5 cm. The Gammex 162A Beam Alignment Test Tool provides
a simple test of the x-ray beams alignment. When used with the Collimator Test Tool, x-ray beam misalignments of 1% and
2% can be visualized without the need for measuring or calculating. The test instrument is constructed of a plastic cylinder
16 cm (6.3 in) high with two steel balls, one at each end. The steel balls are located directly above one another so that, when
level and everything is in alignment, they will be superimposed on the radiograph. A bubble level is included so that accurate
tests can be performed with ease.
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