01 · Generator & tube
X-Ray Circuit Trainer
Press a two-position hand switch and watch the circuit energize, from the autotransformer to the rotating anode.
- Autotransformer, step-up, rectifier, filament circuit
- Real tube photo with rotor and electron cloud
- A hand radiograph forms as you expose
02 · Physics
EM Spectrum Explorer
Tune from radio to gamma with linked frequency, wavelength and energy, and see what each photon does to an atom.
- Ionization boundary at 100 nm
- Wave–particle duality and intensity
- Photoelectric, Compton, pair production
03 · Beam
X-Ray Production Lab
Electrons hit the target and make heat, bremsstrahlung and characteristic x-rays. The spectrum and the patient respond live.
- kVp, mA, target, generator, filtration
- HVL, mean energy, characteristic share
- Interactions in fat, tissue, bone, iodine
04 · Scatter control
Grid Lab
Choose grid ratio, frequency and type, then cause and fix every grid error on real radiographs.
- Off-level, off-center, off-focus, upside-down
- Bucky factor and contrast improvement
- Moving vs. stationary grids
05 · Quality control
QA/QC Lab
Run 15 QC tests in a virtual room, record results in a QC log, and find the hidden faults in an audit room.
- kVp, timer, linearity, reproducibility, HVL
- Collimation, alignment, focal spot, processor
- Detector, monitor and lead apron checks
06 · Radiation biology
Radiation Biology Lab
Dose any region with x-rays, beta, protons, neutrons or alpha and see equivalent and effective dose, tissue reactions and stochastic risk.
- ICRP 103 weighting factors, LNT risk
- Thresholds: skin, lens, gonads, ARS
- Cell survival, LET tracks, oxygen effect
07 · Atomic structure
Atom Builder
Add protons, neutrons and electrons, explore the chart of nuclides, decay unstable isotopes, and fire radiation at the atom.
- Isotopes, ions, real shell structure
- β⁻, β⁺, EC, α, isomeric decay with real half-lives
- Photoelectric, Compton, pair, neutron activation
08 · Patient care
Patient Scenarios
Read the order and chart, meet the patient, and make the call when something does not add up.
- Identification, laterality, pregnancy, refusal
- Priors, appropriateness, contrast history
- Infection control, scored with debriefs
09 · Positioning & technique
Exposure Simulator
Position the patient, angle the tube, set SID, kVp, mAs and grid, and get a radiograph computed from a real CT scan.
- Chest, KUB, T- and L-spine, RPO/LPO obliques, L5–S1, SI joints
- Rotation, centering, collimation, motion graded
- EI / DI, entrance dose, scatter, film-like vs DR
10 · Radiographic math
Radiographic Math Lab
Change the numbers and watch the circuit, the transformer, the beam and the technique respond, with every formula worked out live.
- Ohm's law: single, series, parallel; power
- Step-up, filament and autotransformers
- Inverse square, exposure maintenance, 15% rule, mAs