Photobiomodulation Dose

Calculate delivered energy and fluence for photobiomodulation.

Description

Delivered light energy equals power times exposure duration.

Delivered light energy equals power times exposure duration. Fluence divides that energy by the supplied treated area.1

Calculate delivered energy and fluence for photobiomodulation.

When to use Photobiomodulation Dose

Use this tool to calculate delivered energy and fluence for photobiomodulation.

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 Photobiomodulation Dose and understand its results

  1. 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.
  2. Enter opticalPowerWatts, exposureSeconds, treatedAreaCm2 using the field table and calculation rules, then run the tool.
  3. Read deliveredEnergyJoules, fluenceJPerCm2. The explanation below defines the units, signs, ordering and any flags or placeholder values.
  4. 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 fieldMeaningValue type; see rules belowRequirement
opticalPowerWattsOptical power (W)number; minimum: 0Required
exposureSecondsExposure duration (s)number; minimum: 0Required
treatedAreaCm2Treated area (cm²)number; minimum: 0Required

Enter nonnegative optical power/exposure and positive area. Return joules and J/cm².

energy=P×time; fluence=energy/areaCm²

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output fieldMeaningValue type
deliveredEnergyJoulesDelivered energy (J)number; minimum: 0
fluenceJPerCm2Photobiomodulation fluence (J/cm²)number; minimum: 0
json
{
  "input": {
    "opticalPowerWatts": 2,
    "exposureSeconds": 5,
    "treatedAreaCm2": 10
  },
  "output": {
    "deliveredEnergyJoules": 10,
    "fluenceJPerCm2": 1
  }
}

Limitations and assumptions

Assumes the stated power and uniform area basis. No tissue dose, treatment efficacy, safety limit or patient-specific recommendation is supplied.

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.

Alternative or Complementary methods

Use PDT Light Dose: Calculate PDT light dose and check a caller-supplied drug-to-light interval. For a complementary task, use SLT Dose Window Check: Calculate SLT pulse fluence and compare it with caller-supplied dose bounds.

References

  1. Photobiomodulation Dose — tool.io

Similar or alternative tools

  • PDT Light Dose

    Calculate PDT light dose and check a caller-supplied drug-to-light interval.

  • SLT Dose Window Check

    Calculate SLT pulse fluence and compare it with caller-supplied dose bounds.

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