Expand description
Energy calibration for TOF neutron instruments.
Finds the flight path length (L) and TOF delay (t₀) that best align a measured transmission spectrum with the ENDF resonance model.
The energy-TOF relationship is:
E = C · (L / (t − t₀))²
where C = mₙ / 2 ≈ 5.2276e-9 [eV·s²/m²].
When L or t₀ differ from the values assumed during data reduction, resonance positions shift in the energy domain, causing catastrophic chi² degradation (e.g. 436 → 2.7 for a 0.3% L correction on VENUS).
Structs§
- Calibration
Result - Result of energy calibration.
Functions§
- calibrate_
energy - Calibrate the energy axis of a TOF neutron measurement.