Background réaliste CsI(Tl) + hybridation mesuré/synthétique + dashboard continuum
- Remplace le continuum exponentiel par un modèle réaliste CsI(Tl) dans l'entraînement (bosse asymétrique ~110 keV + queue Compton) - Ajoute l'injection de background mesuré (70% mesuré / 30% synthétique) via --measured_background et MEASURED_BACKGROUND_PATH - Ajoute l'endpoint /api/background/continuum et le toggle "Continuum CsI" sur le dashboard background - Exclut le canal 1023 (overflow bin) de l'affichage web (NUM_CHANNELS=1023) - Corrige le lissage Gaussien du background (normalisation locale aux bords) - Met à jour README.md, CLAUDE.md, TUTORIEL.md, TOTO.md, vega_ml/README.md Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Jacquin Antoine
@ -1,4 +1,60 @@
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let bgChart = null;
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let bgReferenceData = null;
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let bgTheoreticalData = null;
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let bgContinuumData = null;
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async function loadBgReference() {
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try {
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const resp = await fetch(`${API_BASE}/api/background/reference`);
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if (!resp.ok) return;
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bgReferenceData = await resp.json();
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} catch {}
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}
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async function loadBgTheoretical(cps, liveTime) {
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try {
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const resp = await fetch(`${API_BASE}/api/background/theoretical?cps=${cps}&live_time_s=${liveTime}`);
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if (!resp.ok) return;
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bgTheoreticalData = await resp.json();
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} catch {}
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}
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async function loadBgContinuum(cps, liveTime) {
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try {
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const resp = await fetch(`${API_BASE}/api/background/continuum?cps=${cps}&live_time_s=${liveTime}`);
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if (!resp.ok) return;
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bgContinuumData = await resp.json();
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} catch {}
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}
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/**
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* Gaussian kernel smoothing.
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* Convolves the data with a Gaussian kernel of given sigma (in channels).
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* Preserves peak shapes while removing statistical noise.
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*/
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function smoothGaussian(data, sigma) {
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if (!data || data.length === 0) return data;
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const kernelRadius = Math.ceil(sigma * 3);
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const kernel = [];
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for (let i = -kernelRadius; i <= kernelRadius; i++) {
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kernel.push(Math.exp(-0.5 * (i / sigma) ** 2));
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}
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const result = new Array(data.length);
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for (let i = 0; i < data.length; i++) {
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let sum = 0;
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let wSum = 0;
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for (let k = -kernelRadius; k <= kernelRadius; k++) {
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const idx = i + k;
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if (idx < 0 || idx >= data.length) continue;
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const w = kernel[k + kernelRadius];
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sum += data[idx] * w;
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wSum += w;
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}
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result[i] = wSum > 0 ? sum / wSum : 0;
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}
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return result;
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}
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async function refreshBackground() {
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try {
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@ -23,28 +79,105 @@ async function refreshBackground() {
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<div class="bg-stat"><div class="bg-stat-value">${info.cps.toFixed(2)}</div><div class="bg-stat-label">CPS</div></div>
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`;
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// Load theoretical curve on first load
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if (!bgTheoreticalData && spec.live_time_s > 0) {
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await loadBgTheoretical(info.cps || 6.0, spec.live_time_s);
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}
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// Load CsI(Tl) continuum on first load
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if (!bgContinuumData && spec.live_time_s > 0) {
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await loadBgContinuum(info.cps || 6.0, spec.live_time_s);
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}
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// Chart
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updateBackgroundChart(spec);
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// Peaks table
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updatePeaksTable(info.top_peaks || []);
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// Show/hide toggles
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const refToggle = document.getElementById('show-bg-reference');
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if (refToggle) refToggle.parentElement.style.display = spec.reference_available ? 'flex' : 'none';
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} catch {}
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}
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function updateBackgroundChart(spec) {
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const ctx = document.getElementById('background-chart').getContext('2d');
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const showRef = document.getElementById('show-bg-reference')?.checked && bgReferenceData;
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const showTheory = document.getElementById('show-bg-theoretical')?.checked && bgTheoreticalData;
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const showSmooth = document.getElementById('show-bg-smooth')?.checked;
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const showContinuum = document.getElementById('show-bg-continuum')?.checked && bgContinuumData;
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const chartData = {
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labels: spec.energy_kev,
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datasets: [{
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label: 'Background',
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data: spec.counts,
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borderColor: '#ff9800',
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backgroundColor: 'rgba(255, 152, 0, 0.1)',
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const datasets = [{
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label: 'Background (live)',
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data: spec.counts,
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borderColor: '#ff9800',
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backgroundColor: 'rgba(255, 152, 0, 0.1)',
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borderWidth: 1,
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pointRadius: 0,
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fill: true,
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}];
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if (showSmooth) {
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// Smoothed version of live data — sigma=8 channels (~24 keV)
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// Wide enough to remove noise, narrow enough to preserve the 100 keV peak
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const smoothed = smoothGaussian(spec.counts, 8);
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datasets.push({
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label: 'Lissé',
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data: smoothed,
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borderColor: 'rgba(233, 30, 99, 0.9)',
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backgroundColor: 'rgba(233, 30, 99, 0.05)',
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borderWidth: 2,
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pointRadius: 0,
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fill: false,
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});
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}
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if (showTheory) {
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datasets.push({
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label: 'Théorique',
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data: bgTheoreticalData.counts,
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borderColor: 'rgba(76, 175, 80, 0.7)',
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backgroundColor: 'rgba(76, 175, 80, 0.05)',
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borderWidth: 1.5,
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pointRadius: 0,
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fill: true,
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borderDash: [6, 3],
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});
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}
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if (showContinuum) {
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datasets.push({
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label: 'Continuum CsI(Tl)',
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data: bgContinuumData.counts,
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borderColor: 'rgba(156, 39, 176, 0.8)',
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backgroundColor: 'rgba(156, 39, 176, 0.05)',
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borderWidth: 2,
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pointRadius: 0,
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fill: false,
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borderDash: [8, 4],
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});
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}
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if (showRef) {
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const scale = spec.live_time_s > 0 && bgReferenceData.live_time_s > 0
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? spec.live_time_s / bgReferenceData.live_time_s
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: 1;
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datasets.push({
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label: `Référence 24h (×${scale.toFixed(1)})`,
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data: bgReferenceData.counts.map(c => c * scale),
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borderColor: 'rgba(79, 195, 247, 0.8)',
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backgroundColor: 'rgba(79, 195, 247, 0.08)',
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borderWidth: 1,
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pointRadius: 0,
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fill: true,
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}]
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borderDash: [4, 2],
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});
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}
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const chartData = {
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labels: spec.energy_kev,
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datasets: datasets,
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};
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const options = {
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@ -55,7 +188,7 @@ function updateBackgroundChart(spec) {
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tooltip: {
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callbacks: {
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title: (items) => `${spec.energy_kev[items[0].dataIndex]} keV`,
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label: (item) => `${item.raw.toFixed(1)} counts`
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label: (item) => `${item.dataset.label}: ${item.raw.toFixed(1)} counts`
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}
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}
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},
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@ -67,7 +200,9 @@ function updateBackgroundChart(spec) {
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grid: { color: '#333' },
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},
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y: {
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title: { display: true, text: 'Comptages', color: '#888' },
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type: 'logarithmic',
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title: { display: true, text: 'Comptages (log)', color: '#888' },
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min: 0.9,
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ticks: { color: '#888' },
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grid: { color: '#333' },
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}
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@ -100,4 +235,26 @@ function updatePeaksTable(peaks) {
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container.innerHTML = html;
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}
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document.querySelector('[data-tab="background"]').addEventListener('click', refreshBackground);
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document.querySelector('[data-tab="background"]').addEventListener('click', () => {
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refreshBackground();
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loadBgReference();
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});
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// Toggle handlers
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document.getElementById('show-bg-reference')?.addEventListener('change', () => refreshBackground());
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document.getElementById('show-bg-theoretical')?.addEventListener('change', () => {
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if (document.getElementById('show-bg-theoretical').checked && !bgTheoreticalData) {
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loadBgTheoretical(6.0, 3600).then(() => refreshBackground());
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} else {
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refreshBackground();
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}
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});
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document.getElementById('show-bg-continuum')?.addEventListener('change', () => {
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if (document.getElementById('show-bg-continuum').checked && !bgContinuumData) {
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const info = document.getElementById('bg-stats');
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loadBgContinuum(6.0, 3600).then(() => refreshBackground());
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} else {
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refreshBackground();
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}
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});
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document.getElementById('show-bg-smooth')?.addEventListener('change', () => refreshBackground());
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