Ndt Engineering

Radiographic Geometric Unsharpness (ug) per ASTM E94 / ISO 17636 calculator

Radiographic Geometric Unsharpness (ug) per ASTM E94 / ISO 17636 engineering calculator.

Runnable This tool can run, but independent engineering verification has not been established.

Quick Answer

Calculate Radiographic Geometric Unsharpness (ug) per ASTM E94 / ISO 17636

Calculator

Geometric Unsharpness (mm)
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Result Interpretation

Radiographic Geometric Unsharpness (ug) per ASTM E94 / ISO 17636 calculator computes Geometric Unsharpness in mm using the defined engineering formula and the input values provided. Geometric Unsharpness is expressed in mm. No universal acceptance threshold is defined by this calculator.

Worked Example

Verified calculation

Given:

  • Focal Spot Size = 0.5
  • Object-to-Detector Distance = 400
  • Source-to-Object Distance = 800

Expected Result:

  • Geometric Unsharpness = 0.25

Engineering Interpretation:

Under the given input conditions, the calculated result is: Geometric Unsharpness = 0.25 mm.

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from deterministically validated test cases.

Formula / Method

geometric unsharpness = focal spot size * (object-to-detector distance / source-to-object distance)

Formula family: formula_ndt_radiographic_geometric_unsharpness_ug_per_astm_e94_iso_17636

Variables

SymbolLabelRoleDescription
F Focal Spot Size INPUT Focal Spot Size
ODD Object-to-Detector Distance INPUT Object-to-Detector Distance
SOD Source-to-Object Distance INPUT Source-to-Object Distance
ug Geometric Unsharpness OUTPUT Geometric Unsharpness

Calculation Steps

  1. Enter the focal spot size in mm.
  2. Enter the object-to-detector distance in mm.
  3. Enter the source-to-object distance in mm.
  4. Step 1: Compute geometric unsharpness.
  5. Read the geometric unsharpness (mm) from the results.

Engineering Summary

Calculate Radiographic Geometric Unsharpness (ug) per ASTM E94 / ISO 17636

Frequently Asked Questions

What does this calculator calculate?

The Radiographic Geometric Unsharpness (ug) per ASTM E94 / ISO 17636 calculator estimates Geometric Unsharpness based on the input parameters you provide

Why is focal spot size important in this calculation?

focal spot size is directly proportional to geometric unsharpness. When you enter focal spot size in mm, the calculator uses it in the engineering formula to compute the output

How should I interpret the result geometric unsharpness?

The calculator outputs geometric unsharpness in mm. The result is computed directly from the input values using the defined engineering formula

What units should I use for the inputs?

Enter each value in the units shown next to the input field: Focal Spot Size (mm), Object-to-Detector Distance (mm), Source-to-Object Distance (mm). Make sure all inputs use the specified units for consistent results

What assumptions does this calculator use?

This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment

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