SLT Dose Window Check
Calculate SLT pulse fluence and compare it with caller-supplied dose bounds.
Description
A pulse-fluence window compares pulse energy per circular spot area with two caller-supplied bounds.
A pulse-fluence window compares pulse energy per circular spot area with two caller-supplied bounds. The SLT name does not supply treatment settings.1
Calculate SLT pulse fluence and compare it with caller-supplied dose bounds.
When to use SLT Dose Window Check
Use this tool to calculate SLT pulse fluence and compare it with caller-supplied dose bounds.
Prepare the optical measurements, geometry, fitted coefficients or caller-selected thresholds requested. Confirm wavelength, radius/diameter, pulse-width, angle and unit conventions before running the calculation.
How to use SLT Dose Window Check and understand its results
- Prepare the optical measurements, geometry, fitted coefficients or caller-selected thresholds requested. Confirm wavelength, radius/diameter, pulse-width, angle and unit conventions before running the calculation.
- Enter pulseEnergyMillijoules, spotDiameterMicrometers, minimumFluenceJPerCm2, maximumFluenceJPerCm2 using the field table and calculation rules, then run the tool.
- Read fluenceJPerCm2, nearestBoundaryMarginJPerCm2, withinWindow. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| pulseEnergyMillijoules | Pulse energy (mJ) | number; minimum: 0 | Required |
| spotDiameterMicrometers | Spot diameter (µm) | number; minimum: 0 | Required |
| minimumFluenceJPerCm2 | Caller minimum fluence (J/cm²) | number; minimum: 0 | Required |
| maximumFluenceJPerCm2 | Caller maximum fluence (J/cm²) | number; minimum: 0 | Required |
Enter nonnegative pulse energy and ordered nonnegative bounds with positive spot diameter. Return fluence, minimum signed distance to either boundary and inclusive window flag.
area_cm²=π(d_µm×1e−4/2)²; fluence=energy_mJ/1000/area Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| fluenceJPerCm2 | Delivered fluence (J/cm²) | number; minimum: 0 |
| nearestBoundaryMarginJPerCm2 | Nearest dose-window margin (J/cm²) | number |
| withinWindow | Within supplied window | boolean |
{
"input": {
"pulseEnergyMillijoules": 0.001,
"spotDiameterMicrometers": 100,
"minimumFluenceJPerCm2": 0.01,
"maximumFluenceJPerCm2": 0.02
},
"output": {
"fluenceJPerCm2": 0.012732395447351627,
"nearestBoundaryMarginJPerCm2": 0.0027323954473516265,
"withinWindow": true
}
}Limitations and assumptions
Assumes uniform circular-area fluence. No patient assessment, treatment recommendation or device-specific clinical limits are included.
Numeric inputs must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors. A successfully returned false flag is an evaluated outcome; its meaning is explained above.
Alternative or Complementary methods
Use Photobiomodulation Dose: Calculate delivered energy and fluence for photobiomodulation. For a complementary task, use PDT Light Dose: Calculate PDT light dose and check a caller-supplied drug-to-light interval.
References
-
SLT Dose Window Check — tool.io
Similar or alternative tools
- Photobiomodulation Dose
Calculate delivered energy and fluence for photobiomodulation.
- PDT Light Dose
Calculate PDT light dose and check a caller-supplied drug-to-light interval.