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Category Descriptions

BEST SELLERS
Model MGW830 Multi-Parameter Module 6-in-1 with ECG, RESP, TEMP, NB, SPO2 OEM Board
Model MGW830 Multi-Parameter Module 6-in-1 with ECG, RESP, TEMP, NB, SPO2 OEM Board
Item No.: MOKM-MGW830
Low Flow SIDESTREAM End-Tidal CO2 (ETCO2) MODULE Model C300M compatible with Respironics Loflo CO2 sensor
Item No.: MONM-C300M
$0.00
OEM ETCO2 MODULE (End-tidal CO2) CO2 Module Model C200 for measuring Respiratory Carbon Dioxide CO2 Sensor
Item No.: MONM-C200
AccuPulse HandHeld NIBP Simulator
Item No.: NSCD-APHS
$0.00
 

Item Details   ITEM DETAILS  

MODEL 142D AND 143D FILM/SCREEN CONTACT TEST TOOLS

The focal spot size of an X-ray tube is a key factor in determining system resolution. The smaller the focal spot size, the sharper the image at high geometric magnification. The Model 112B Focal Spot Test Tool consists of six groups of bar patterns with spacing decreasing in 16% steps from 0.84 lp/mm (line pairs per millimeter) to 5.66 lp/mm.
MODEL 142D AND 143D FILM/SCREEN CONTACT TEST TOOLS
Model Number: Model 142D
GOLDWEI Item No.: UPGX-112B
 

Focal Spot

Test Tool

Model 112B

 

The focal spot size of an X-ray tube is a key factor in determining system resolution.  The smaller the focal spot size, the

sharper the image at  high geometric magnification.  The Gammex 112B Focal Spot Test Tool consists of six groups of bar

patterns with spacing decreasing in 16%  steps from 0.84 lp/mm (line pairs per millimeter) to 5.66 lp/mm.  The test pattern is

mounted on the top of a 16 cm acrylic cylinder.  The test tool works by forming a magnified image of the precision bar

pattern.  The cylinder provides accurate and reproducible target-to-image receptor spacing.  The visually observed limiting

resolution can be simply converted into an effective focal spot size.  This process is simpler than the use of an IEC slit

camera and can be easier to interpret than a star pattern. 

 

SPECIFICATIONS

Gammex 112B

Construction . . . . Six inch acrylic cylinder with a

12 group bar pattern target mounted on top

Resolution . . . . . 0.84 to 5.66 lp/mm

Size. . . . . . . . . . 16.5x7.6 cm diameter

(6.5x3 in diameter)

Weight. . . . . . . . 329 g (11.6 oz)


Focal Spot Test Tool Model 112B The focal spot size of an X-ray tube is a key factor in determining system resolution. The smaller the focal spot size, the sharper the image at high geometric magnification. The Gammex 112B Focal Spot Test Tool consists of six groups of bar patterns with spacing decreasing in 16% steps from 0.84 lp/mm (line pairs per millimeter) to 5.66 lp/mm. The test pattern is mounted on the top of a 16 cm acrylic cylinder. The test tool works by forming a magnified image of the precision bar pattern. The cylinder provides accurate and reproducible target-to-image receptor spacing. The visually observed limiting resolution can be simply converted into an effective focal spot size. This process is simpler than the use of an IEC slit camera and can be easier to interpret than a star pattern.

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