Dosimetry Lab
Every parameter must be calculated and justified. Energy without area is clinically incomplete — the calculator below always shows the area it used.
Parameters
Calculated dose
Calculation challenges
Calculate the fluence delivered per point.
- • Power 0.1 W
- • Time 20 s
- • Spot diameter 0.4 cm
The device delivers 0.05 W. You want 4 J/cm² over a 0.6 cm diameter spot. Calculate the exposure time.
- • Power 0.05 W
- • Target fluence 4 J/cm²
- • Spot diameter 0.6 cm
Calculate the irradiance.
- • Power 0.2 W
- • Spot diameter 0.5 cm
A protocol states '2 J per point, 10 points'. Calculate the total energy per session.
- • Energy per point 2 J
- • Points 10
Dosimetric error detection
A professionally written protocol with a hidden error
- • Wavelength 810 nm
- • Power 0.1 W
- • Spot diameter 4 mm → stated area 0.4 cm²
- • Time 20 s per point, 6 points
- • Stated fluence: 5 J/cm²
Total energy reported without area
- • Wavelength 660 nm
- • Total energy 30 J over the mucosal field
- • Sessions: 3 per week
- • No area recorded
Clinical record template
Record the dose actually delivered, not the dose planned.
Educational content only. These algorithms are educational decision-support tools and never autonomous medical decision-makers. Clinical decisions remain the responsibility of the treating professional. Certification within OHDR Study™ is not a university award unless an authorised institution has been formally configured.