Fluke Biomedical Stock Number: 07-503-2

X-RAY TEST PATTERNS Nuclear Associates' extensive line of High-Precision and Ultra-High Precision X-ray Test Patterns are compatible with all x-ray machines and are widely used by physicists and the leading manufacturers of radiography equipment. They consist of lead-foil screens (rasters) that are sandwiched between two plastic plates. STAR X-RAY PATTERNS FOR MEASURING FOCAL SPOT SIZE Focal spot size can be determined by observing the regions of blurring which occur when the pattern is radiographed by an x-ray source of finite dimensions. Radiation from different areas of the focal spot will cause a periodic blurring of the pattern due to penumbra effects. Knowledge of the geometric factors, and the distance from the center of the pattern to the region where blurring occurs, will permit the calculation of the focal spot size with the same accuracy as measurements made with a pinhole camera.

Stock #	Description	Your Price
07-503-1000	Ultra-High Precision Star X-Ray Test Pattern (Same specifications as 07-503-2	$910.56
07-509-2000	High-Precision Star X-Ray Test Pattern, 55 mm diameter for measuring focal spots from 1 mm and up. Has four 45 degree sectors with a 2 degree angle of a single line within a sector. Lead-foil thickness .05 mm	$488.69
07-509-1000	Ultra-High Precision Star X-Ray Test Pattern (Same specifications as 07-509-2)	$785.41
07-542-2000	Precision Star X-Ray Test Pattern, 55 mm diameter. For measuring focal spots from 0.3 to 0.6 mm. Has four 28 patterned sectors with a 1º angle of a single line within a sector. Lead-foil thickness .03 mm	$704.53
07-542-1000	Ultra-High Precision Star X-Ray Test Pattern. (Same specifications as 07-542-2)	$819.56
07-543-2000	High-Precision Star X-Ray Test Pattern, 55 mm diameter. For measuring focal spots from .8 mm to 1.5 mm. Has four 35º patterned sections with a 1.5º angle of a single line within a sector. Lead-foil thickness .03 mm	$622.17
07-543-1000	Ultra-High precision Star X-Ray Patterns. (Same specifications as 07-543-2)	$852.26
07-550	Ultra-High Precision Star X-Ray Patterns. (Same as 07-503-2 except it has four 45º patterned sectors, for easier interpretation). Lead-foil thickness .03 mm	$1,443.30
07-551	Ultra-High Precision Star X-Ray Pattern. (Same as 07-503-2 except it has four 15º patterned sectors with a 0.25º angle). Lead-foil thickness .03 mm	$826.73
07-510-2000	High-Precision Star X-Ray Test Pattern, 55 mm diameter, for measuring focal spots from 1 mm and up. Has one 360º pattern sector with a 2º angle of a single line within a sector. Lead-foil thickness .05 mm	$785.41
07-510-1000	Ultra-High Precision Star X-Ray Test Pattern. (Same specifications as 07-510-2)	$1,133.51
07-503-2000	High-Precision Star X-Ray Test Pattern, 55 mm diameter. For measuring focal spots from 0.2 to 0.3 mm. Has four 15º patterned sectors with a 0.5º angle of a single line within a sector. Lead-foil thickness .03 mm	$745.84

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