Commit Graph
3 Commits
Author SHA1 Message Date
unzhakov ab164fbf98 fix: robust Am-241 calibration with width-constrained peak detection
- Use find_peaks width=(5,50) to reject noise bumps
- Simplify peak matching: find two strongest peaks with largest
  channel separation, assign min/max known energies
- Require absolute threshold of 400 counts to avoid noise peaks
- Calibration now correctly maps: ch 97→13.0 keV, ch 537→59.54 keV
- Tc-99 endpoint at ch 2750 → 293.6 keV (expected ~294)
- Add .rpiv/ to .gitignore
2026-05-21 18:21:51 +03:00
unzhakov 8952d0f789 fix: robust Am-241 peak detection for energy calibration
- Search full spectrum (exclude pulser region) instead of just low-energy
- Include 59.54 keV line in known Am-241 energies
- Brute-force peak-to-energy matching with physical gain constraint
  (3-40 ch/keV) to reject spurious fits
- Fixed find_peaks parameters: height=100, distance=5 for accurate
  peak detection
- Calibration now correctly maps: ch 97→13 keV, ch 134→17.4 keV,
  ch 537→59.6 keV, giving Tc-99 endpoint at ch 2750→291.6 keV
- Add .rpiv/ to .gitignore
2026-05-21 16:43:10 +03:00
unzhakov 5c2b12c0e6 feat: experimental data calibration pipeline with ROOT I/O
- Fix chi2 calculation bug in calibration.py (remove incorrect
  coeffs[::-1] reversal in np.polyval)
- Fix broken beta_spectrum/cli.py (remove orphaned detector response
  add_argument calls and unused imports)
- Add ExpSpectrum.apply_calibration() and EnergyCalibrator.from_am241_spectrum()
- Add LivetimeDetermination class for pulser-based livetime
- Add SpectrumPipeline orchestration (read→subtract→calibrate→livetime→validate)
- Add ROOT I/O with PyROOT primary + uproot fallback
- Add bs_exp CLI with process, livetime, export subcommands
- Add exp_calibration notebook with pre-calibration visualization
- Add comprehensive tests (73 passing)
- Add bs_exp console script and [root] extra to pyproject.toml
- Remove obsolete detector_response module and unused notebooks
2026-05-21 16:01:25 +03:00