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Fix: CsI(Tl) non-linear response correction + detector calibration overhaul

Browse Source 
Root cause of Am-241 misidentification: the Radiacode 103's CsI(Tl) crystal
shifts low-energy peaks upward (59.5 keV → 71.6 keV for Am-241) due to
non-proportional scintillation response. The model was trained on theoretical
peak positions and couldn't match the shifted real peaks.

Changes:
- Add inverse CsI(Tl) non-linear correction to inference pipeline
  (radiacode_monitor.py, web/config.py, test_detection.py)
  E_apparent = E_true * (1 + 0.37 * exp(-E_true/100))
  Corrects channel mapping so peaks appear at theoretical energies
- Fix energy calibration: DetectorConfig now uses E = 0.33 + 2.97*ch
  with 1023 channels, matching the real detector (was energy_min=20,
  skip_first_channel=True, different channel width)
- Add K-escape peaks for CsI(Tl) iodine X-ray escape (E - 28.5 keV)
- Add asymmetric peak shapes for low-energy tails (< 200 keV)
- Add log1p normalization in dataset and inference (replaces max-norm)
- Add background-subtracted training mode (subtract_background flag)
- Add low-signal augmentation (0.01-5 Bq activities, 30-300s durations)
- Update docker-compose.yml: batch_size=32, duration=30-300s,
  CSI_NONLINEAR_ALPHA/BETA env vars for detect and web
- Web dashboard: apply CsI correction to displayed spectra
- Various UI fixes (Chart.js width, zoom/pan, isotope lines)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Jacquin Antoine
2026-05-21 17:35:22 +02:00
parent 3b4446b181
commit 0847a3fc80
21 changed files with 913 additions and 278 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
web/static/css/style.css
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@ -68,18 +68,29 @@ nav a {
nav a:hover { background: rgba(255,255,255,0.1); }
nav a.active { color: var(--accent-bright); border-bottom: 2px solid var(--accent-bright); }
main { padding: 16px; }
main { padding: 12px 0; }
.tab-content { display: none; }
.tab-content.active { display: block; }
.controls, .bg-stats, #isotopes-table, #peaks-table, .history-item, .chart-header {
margin-left: 12px;
margin-right: 12px;
}
.chart-container {
background: var(--bg-card);
border-radius: 8px;
padding: 12px;
margin-bottom: 12px;
margin: 0 12px 12px 12px;
height: 450px;
width: calc(100% - 24px);
position: relative;
overflow: hidden;
}
.chart-container canvas {
display: block;
}
.controls {

10
web/static/index.html
View File

@ -4,7 +4,7 @@
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Radiacode 103 — Dashboard</title>
<link rel="stylesheet" href="/static/css/style.css?v=3">
<link rel="stylesheet" href="/static/css/style.css?v=8">
<script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.1/dist/chart.umd.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-annotation@3.0.1/dist/chartjs-plugin-annotation.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/hammerjs@2.0.8/hammer.min.js"></script>
@ -83,12 +83,12 @@
</section>
</main>
<script src="/static/js/isotope_lines.js?v=3"></script>
<script src="/static/js/isotope_lines.js?v=5"></script>
<script src="/static/js/chart_pan.js?v=3"></script>
<script src="/static/js/spectrum.js?v=9"></script>
<script src="/static/js/spectrum.js?v=15"></script>
<script src="/static/js/history.js?v=2"></script>
<script src="/static/js/background.js?v=30"></script>
<script src="/static/js/cps.js?v=7"></script>
<script src="/static/js/background.js?v=34"></script>
<script src="/static/js/cps.js?v=8"></script>
<script src="/static/js/app.js?v=3"></script>
</body>
</html>

18
web/static/js/background.js
View File

@ -6,11 +6,11 @@ let bgContinuumData = null;
document.getElementById('reset-zoom-bg')?.addEventListener('click', () => {
if (bgChart) {
bgChart.resetZoom();
// After resetZoom, force the scale to full energy range
delete bgChart._panRange;
const firstPt = bgChart.data.datasets[0]?.data?.[0];
const lastPt = bgChart.data.datasets[0]?.data?.[bgChart.data.datasets[0].data.length - 1];
const fullMin = firstPt?.x ?? 0;
const fullMax = lastPt?.x ?? 3036;
const fullMax = lastPt?.x ?? 3000;
bgChart.options.scales.x.min = fullMin;
bgChart.options.scales.x.max = fullMax;
bgChart.update();
@ -170,12 +170,12 @@ function updateBackgroundChart(spec) {
datasets: datasets,
};
// Preserve pan range (user zoomed), but reset to full range when data refreshes
// Preserve pan range only if user has explicitly zoomed/panned
const panRange = bgChart?._panRange;
const firstX = datasets[0].data[0]?.x;
const lastX = datasets[0].data[datasets[0].data.length - 1]?.x;
const xMin = panRange ? panRange[0] : (firstX ?? 0);
const xMax = panRange ? panRange[1] : (lastX ?? 3036);
const firstX = datasets[0].data[0]?.x ?? 0;
const lastX = datasets[0].data[datasets[0].data.length - 1]?.x ?? 3000;
const xMin = panRange ? panRange[0] : firstX;
const xMax = panRange ? panRange[1] : lastX;
const options = {
responsive: true,
maintainAspectRatio: false,
@ -214,8 +214,8 @@ function updateBackgroundChart(spec) {
},
y: {
type: showLog ? 'logarithmic' : 'linear',
min: showLog ? 0.5 : undefined,
title: { display: true, text: `Comptages (${showLog ? 'log' : 'lin'})`, color: '#888' },
...(showLog ? { min: 0.9 } : {}),
ticks: { color: '#888' },
grid: { color: '#333' },
}
@ -229,7 +229,7 @@ function updateBackgroundChart(spec) {
} else {
bgChart = new Chart(ctx, { type: 'line', data: chartData, ...options });
const firstX = datasets[0].data[0]?.x ?? 0;
const lastX = datasets[0].data[datasets[0].data.length - 1]?.x ?? 3036;
const lastX = datasets[0].data[datasets[0].data.length - 1]?.x ?? 3000;
enablePan(bgChart, 'reset-zoom-bg', firstX, lastX);
}
}

14
web/static/js/cps.js
View File

@ -41,10 +41,9 @@ function updateCpsChart(labels, values) {
}]
};
const existingMin = cpsChart?.scales.x?.min;
const existingMax = cpsChart?.scales.x?.max;
const xMin = existingMin ?? labels[0];
const xMax = existingMax ?? labels[labels.length - 1];
const panRange = cpsChart?._panRange;
const xMin = panRange ? panRange[0] : labels[0];
const xMax = panRange ? panRange[1] : labels[labels.length - 1];
const options = {
responsive: true,
maintainAspectRatio: false,
@ -114,10 +113,15 @@ function updateCpsChart(labels, values) {
}
}
// Reset zoom
// Reset zoom — restore full time range
document.getElementById('reset-zoom-cps')?.addEventListener('click', () => {
if (cpsChart) {
cpsChart.resetZoom();
delete cpsChart._panRange;
const labels = cpsChart.data.labels;
cpsChart.options.scales.x.min = labels[0];
cpsChart.options.scales.x.max = labels[labels.length - 1];
cpsChart.update();
document.getElementById('reset-zoom-cps').style.display = 'none';
}
});

46
web/static/js/isotope_lines.js
View File

@ -48,7 +48,7 @@ const ISOTOPE_LINES = [
];
// Filtrer les lignes dans la plage visible du détecteur (30-3050 keV pour Radiacode 103)
const VISIBLE_LINES = ISOTOPE_LINES.filter(l => l.energy_keV >= 30 && l.energy_keV <= 3050);
const VISIBLE_LINES = ISOTOPE_LINES.filter(l => l.energy_keV >= 30 && l.energy_keV <= 3000);
// Global crosshair plugin — vertical dashed line on hover for all charts
const CrosshairPlugin = {
@ -72,6 +72,50 @@ const CrosshairPlugin = {
};
Chart.register(CrosshairPlugin);
// Auto-scale Y axis to visible X range
const AutoScaleYPlugin = {
id: 'autoScaleY',
beforeUpdate(chart) {
const xScale = chart.scales?.x;
const yScale = chart.scales?.y;
if (!xScale || !yScale || xScale.type !== 'linear') return;
const xMin = xScale.min;
const xMax = xScale.max;
if (xMin == null || xMax == null) return;
let yMin = Infinity;
let yMax = -Infinity;
let count = 0;
chart.data.datasets.forEach(ds => {
for (const pt of ds.data) {
const x = Array.isArray(pt) ? pt[0] : pt.x;
const y = Array.isArray(pt) ? pt[1] : pt.y;
if (x === undefined || y === undefined) continue;
if (x >= xMin && x <= xMax) {
if (y > 0 && y < yMin) yMin = y;
if (y > yMax) yMax = y;
count++;
}
}
});
if (count === 0 || yMin === Infinity) return;
const isLog = yScale.type === 'logarithmic';
if (isLog) {
chart.options.scales.y.min = Math.max(0.5, yMin * 0.7);
chart.options.scales.y.max = yMax * 1.5;
} else {
const padding = (yMax - yMin) * 0.05 || 1;
chart.options.scales.y.min = Math.max(0, yMin - padding);
chart.options.scales.y.max = yMax + padding;
}
}
};
Chart.register(AutoScaleYPlugin);
// Couleurs par catégorie d'isotope
function isotopeLineColor(isotope) {
if (["K-40", "Bi-214", "Pb-214", "Ra-226"].includes(isotope)) return "rgba(255,152,0,0.5)"; // Uranium chain - orange

51
web/static/js/spectrum.js
View File

@ -22,22 +22,29 @@ function updateSpectrumChart(data) {
const showBgOverlay = document.getElementById('show-bg-overlay').checked;
const ctx = document.getElementById('spectrum-chart').getContext('2d');
const toData = (counts, energies) => counts.map((v, i) => ({ x: energies[i], y: v }));
const energy = data.energy_kev;
const datasets = [{
label: data.background_subtracted ? 'Spectre (background soustrait)' : 'Spectre cumulé',
data: data.counts,
data: toData(data.counts, energy),
borderColor: '#4fc3f7',
backgroundColor: 'rgba(79, 195, 247, 0.1)',
borderWidth: 1,
pointRadius: 0,
fill: true,
fill: logScale ? 'origin' : true,
tension: 0.1,
}];
// Overlay background if requested and available
// Overlay background if requested and available, scaled to match spectrum max
if (showBgOverlay && bgOverlayData) {
const specMax = Math.max(...data.counts);
const bgMax = Math.max(...bgOverlayData.counts);
const bgScale = bgMax > 0 ? specMax / bgMax : 1;
const bgEnergy = bgOverlayData.energy_kev || energy;
datasets.push({
label: 'Background',
data: bgOverlayData.counts,
data: bgOverlayData.counts.map((v, i) => ({ x: bgEnergy[i] ?? energy[i], y: v * bgScale })),
borderColor: 'rgba(255, 152, 0, 0.6)',
backgroundColor: 'rgba(255, 152, 0, 0.05)',
borderWidth: 1,
@ -48,7 +55,6 @@ function updateSpectrumChart(data) {
}
const chartData = {
labels: data.energy_kev,
datasets: datasets,
};
@ -58,10 +64,11 @@ function updateSpectrumChart(data) {
annotations = buildIsotopeAnnotations(detectedOnly, (data.isotopes_detected || []).map(i => i.isotope));
}
const existingMin = spectrumChart?.scales.x?.min;
const existingMax = spectrumChart?.scales.x?.max;
const xMin = existingMin ?? data.energy_kev[0];
const xMax = existingMax ?? data.energy_kev[data.energy_kev.length - 1];
const firstPt = datasets[0].data[0];
const lastPt = datasets[0].data[datasets[0].data.length - 1];
const panRange = spectrumChart?._panRange;
const xMin = panRange ? panRange[0] : (firstPt?.x ?? 0);
const xMax = panRange ? panRange[1] : (lastPt?.x ?? 3000);
const options = {
responsive: true,
maintainAspectRatio: false,
@ -73,13 +80,10 @@ function updateSpectrumChart(data) {
enabled: true,
mode: 'index',
intersect: false,
filter: (item) => item.raw != null,
filter: (item) => item.parsed.y != null,
callbacks: {
title: (items) => {
const idx = items[0].dataIndex;
return `${data.energy_kev[idx]} keV`;
},
label: (item) => `${item.dataset.label}: ${item.raw.toFixed(1)} counts`
title: (items) => `${items[0].parsed.x.toFixed(1)} keV`,
label: (item) => `${item.dataset.label}: ${item.parsed.y.toFixed(1)} counts`
}
},
annotation: {
@ -108,8 +112,8 @@ function updateSpectrumChart(data) {
},
y: {
type: logScale ? 'logarithmic' : 'linear',
min: logScale ? 0.5 : undefined,
title: { display: true, text: logScale ? 'Comptages (log)' : 'Comptages', color: '#888' },
min: logScale ? 0.9 : undefined,
ticks: { color: '#888' },
grid: { color: '#333' },
}
@ -122,7 +126,12 @@ function updateSpectrumChart(data) {
spectrumChart.update();
} else {
spectrumChart = new Chart(ctx, { type: 'line', data: chartData, ...options });
enablePan(spectrumChart, 'reset-zoom-spectrum', data.energy_kev[0], data.energy_kev[data.energy_kev.length - 1]);
const panMin = firstPt?.x ?? 0;
const panMax = lastPt?.x ?? 3000;
enablePan(spectrumChart, 'reset-zoom-spectrum', panMin, panMax);
// Fix: Chart.js may read wrong canvas dimensions on first render;
// resize on next frame ensures layout is fully computed.
requestAnimationFrame(() => spectrumChart.resize());
}
}
@ -166,10 +175,16 @@ document.getElementById('show-bg-overlay').addEventListener('change', async (e)
refreshSpectrum();
});
// Reset zoom
// Reset zoom — restore full energy range
document.getElementById('reset-zoom-spectrum')?.addEventListener('click', () => {
if (spectrumChart) {
spectrumChart.resetZoom();
delete spectrumChart._panRange;
const firstPt = spectrumChart.data.datasets[0]?.data?.[0];
const lastPt = spectrumChart.data.datasets[0]?.data?.[spectrumChart.data.datasets[0].data.length - 1];
spectrumChart.options.scales.x.min = firstPt?.x ?? 0;
spectrumChart.options.scales.x.max = lastPt?.x ?? 3000;
spectrumChart.update();
document.getElementById('reset-zoom-spectrum').style.display = 'none';
}
});