Focal Spot Test Patterns

With the aid of a star test (or sector-star test) exposure, the size and shape of tube assembly focal spots can be determined in a very simple manner. This method is less complicated than the pinhole or slit camera process and assuming an approximately ideal intensity distribution in the focal spot, it is in many cases fully adequate.

We have highlighted the most popular models in yellow

Type 9 0.25°

Focal Spot Test Patterns - Type 9 0.25°
Overall Dimension: Diameter: 55 mm
Resolution:
Resolution Steps:
Number of Groups:

Models and Ordering
Part Number Lead Thickness (mm)
9/025-003 0.03

Type 9 0.25° 060

Overall Dimension: Diameter: 55 mm
Resolution:
Resolution Steps:
Number of Groups:

Models and Ordering
Part Number Lead Thickness (mm)
9/025060-003 0.03

Type 9 0.25° 360

Overall Dimension: Diameter: 55 mm
Resolution:
Resolution Steps:
Number of Groups:

Models and Ordering
Part Number Lead Thickness (mm)
9/025360-003 0.03

Type 9 0.5°

Overall Dimension: Diameter: 55 mm
Resolution: 0.63 LP/mm - 20 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
9/05-001 0.01
9/05-002 0.02
9/05-0025 0.025
9/05-003
(Formerly 07-551)
0.03

Type 9 0.5° 360

Overall Dimension: Diameter: 55 mm
Resolution: 0.63 LP/mm - 20 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
9/05/360-001 0.01
9/05/360-002 0.02
9/05/360-0025 0.025
9/05/360-003
(Formerly 07-503)
0.03

Type 9 1.0°

Focal Spot Test Patterns - Type 9 1.0°
Overall Dimension: Diameter: 55 mm
Resolution: 1.27 LP/mm - 16 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
9/10-001 0.01
9/10-002 0.02
9/10-0025 0.025
9/10-003
(Formerly 07-542-1000)
0.03

Type 9 1.0° 360

Overall Dimension: Diameter: 55 mm
Resolution: 1.27 LP/mm - 16 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
9/10/360-001 0.01
9/10/360-002 0.02
9/10/360-0025 0.025
9/10/360-003
(Formerly 07-542-1000)
0.03

Type 9 1.5°

Focal Spot Test Patterns - Type 9 1.5°
Overall Dimension: Diameter: 55 mm
Resolution: 0.85 LP/mm - 16 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
9/15-001 0.01
9/15-002 0.02
9/15-0025 0.025
9/15-003 0.03

Type 9 1.5° 360

Focal Spot Test Patterns - Type 9 1.5° 360
Overall Dimension: Diameter: 55 mm
Resolution: 0.85 LP/mm - 16 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
9/15/360-001 0.01
9/15/360-002 0.02
9/15/360-0025 0.025
9/15/360-003
(Formerly 07-543-360)
0.03

Type 9 2.0°

Focal Spot Test Patterns - Type 9 2.0°
Overall Dimension: Diameter: 55 mm
Resolution: 0.64 LP/mm - 10 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
9/20-001 0.01
9/20-002 0.02
9/20-0025 0.025
9/20-003 0.03
9/20-005
(Formerly 07-509-1000)
0.05

Type 9 2.0° 360

Focal Spot Test Patterns - Type 9 2.0° 360
Overall Dimension: Diameter: 55 mm
Resolution: 0.64 LP/mm - 10 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
9/20/360-001 0.01
9/20/360-002 0.02
9/20/360-0025 0.025
9/20/360-003 0.03
9/20/360-005
(Formerly 07-510-1000)
0.05

Type 9 5.0°

Overall Dimension: Diameter: 55 mm
Resolution: 0.25 - 7.15 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
9/50-001 0.01
9/50-002 0.02
9/50-0025 0.025
9/50-003 0.03
9/50-005 0.05
9/50-008 NOT AVAILABLE
9/50-010 NOT AVAILABLE
9/50-020 NOT AVAILABLE

Type 9 5.0° 360

Overall Dimension: Diameter: 55 mm
Resolution: 0.25 - 7.15 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
9/50/360-001 0.01
9/50/360-002 0.02
9/50/360-0025 0.025
9/50/360-003 0.03
9/50/360-005 0.05
9/50/360-008 NOT AVAILABLE
9/50/360-010 NOT AVAILABLE
9/50/360-020 NOT AVAILABLE
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