diff --git a/bin/nuclideLib.db b/bin/nuclideLib.db
new file mode 100644
index 0000000..759e8f5
Binary files /dev/null and b/bin/nuclideLib.db differ
diff --git a/src/2DSpectralCompliance/TwoDSpectralCompliance.cpp b/src/2DSpectralCompliance/TwoDSpectralCompliance.cpp
index faa0c2f..56b379f 100644
--- a/src/2DSpectralCompliance/TwoDSpectralCompliance.cpp
+++ b/src/2DSpectralCompliance/TwoDSpectralCompliance.cpp
@@ -261,7 +261,7 @@ void TwoDSpectralCompliance::createFloatingInfoWidget()
     titleLayout->addStretch();
     QPushButton* hideBtn = new QPushButton(QStringLiteral("−"));
     hideBtn->setFixedSize(20, 20);
-    hideBtn->setToolTip(QStringLiteral(u"隐藏窗口"));
+    hideBtn->setText(QStringLiteral(u"X"));
     hideBtn->setStyleSheet("border: none; font-weight: bold;");
     titleLayout->addWidget(hideBtn);
     mainLayout->addWidget(titleBar);
@@ -316,7 +316,7 @@ void TwoDSpectralCompliance::createFloatingInfoWidget()
         "}"
         "QPushButton:hover { background-color: rgba(150,150,150,200); }"
         );
-    m_showButton->setText("⊕");
+    m_showButton->setText(QStringLiteral(u"⊕"));
     connect(m_showButton, &QPushButton::clicked, this, &TwoDSpectralCompliance::showFloatingWidget);
 
     m_floatingWidget->move(10, 10);
diff --git a/src/ConformToTheEnergySpectrum/ConformToTheEnergySpectrum.cpp b/src/ConformToTheEnergySpectrum/ConformToTheEnergySpectrum.cpp
index b4f4701..ebd9571 100644
--- a/src/ConformToTheEnergySpectrum/ConformToTheEnergySpectrum.cpp
+++ b/src/ConformToTheEnergySpectrum/ConformToTheEnergySpectrum.cpp
@@ -22,10 +22,6 @@ struct SpectrumData
     uint64_t timestamp;
 };
 
-struct CoincidenceEvent
-{
-    std::vector<SpectrumData> events;
-};
 
 ConformToTheEnergySpectrum::ConformToTheEnergySpectrum(QWidget *parent) :
     MeasureAnalysisView(parent)
@@ -81,48 +77,6 @@ void ConformToTheEnergySpectrum::SetAnalyzeDataFilename(const QMap<QString, QVar
     }
 }
 
-static std::vector<CoincidenceEvent> processCoincidence(const std::vector<SpectrumData>& data,
-                                                        uint64_t time_window_ns = 50,
-                                                        int min_order = 2,
-                                                        int max_order = 9)
-{
-    std::vector<CoincidenceEvent> result;
-    if (data.empty()) return result;
-
-    std::vector<SpectrumData> sorted = data;
-    std::sort(sorted.begin(), sorted.end(),
-        [](const SpectrumData& a, const SpectrumData& b) { return a.timestamp < b.timestamp; });
-
-    size_t n = sorted.size();
-    for (size_t i = 0; i < n; ++i)
-    {
-        std::vector<SpectrumData> cluster;
-        cluster.push_back(sorted[i]);
-        uint64_t base = sorted[i].timestamp;
-
-        for (size_t j = i + 1; j < n && (sorted[j].timestamp - base) <= time_window_ns; ++j)
-            cluster.push_back(sorted[j]);
-        for (size_t j = i; j > 0 && (base - sorted[j-1].timestamp) <= time_window_ns; --j)
-            if (j-1 != i) cluster.push_back(sorted[j-1]);
-
-        std::sort(cluster.begin(), cluster.end(),
-            [](const SpectrumData& a, const SpectrumData& b) { return a.timestamp < b.timestamp; });
-        cluster.erase(std::unique(cluster.begin(), cluster.end(),
-            [](const SpectrumData& a, const SpectrumData& b) {
-                return a.timestamp == b.timestamp && a.board_id == b.board_id && a.channel_id == b.channel_id;
-            }), cluster.end());
-
-        int order = (int)cluster.size();
-        if (order >= min_order && order <= max_order)
-        {
-            CoincidenceEvent ev;
-            ev.events = cluster;
-            result.push_back(ev);
-            i += (cluster.size() - 1);
-        }
-    }
-    return result;
-}
 
 void ConformToTheEnergySpectrum::loadAndProcess()
 {
@@ -156,24 +110,32 @@ void ConformToTheEnergySpectrum::loadAndProcess()
             return;
         }
 
-        const uint64_t TIME_WINDOW_NS = 50;
-        const int MIN_ORDER = 2;
-        const int MAX_ORDER = 9;
-        std::vector<CoincidenceEvent> coincidences = processCoincidence(rawData, TIME_WINDOW_NS, MIN_ORDER, MAX_ORDER);
+//        const uint64_t TIME_WINDOW_NS = 50;
+//        const int MIN_ORDER = 2;
+//        const int MAX_ORDER = 9;
+//        std::vector<CoincidenceEvent> coincidences = processCoincidence(rawData, TIME_WINDOW_NS, MIN_ORDER, MAX_ORDER);
 
-        if (coincidences.empty()) {
-            _busy_indicator->Stop();
-            return;
-        }
+//        if (coincidences.empty()) {
+//            _busy_indicator->Stop();
+//            return;
+//        }
+
+//        const int STEP = 1;
+//        std::map<int, double> hist;
+
+//        for (const auto& ev : coincidences) {
+//            for (const auto& spdt : ev.events) {
+//                int idx = static_cast<int>(spdt.energy) / STEP;
+//                hist[idx] += 1.0;
+//            }
+//        }
 
         const int STEP = 1;
         std::map<int, double> hist;
 
-        for (const auto& ev : coincidences) {
-            for (const auto& spdt : ev.events) {
-                int idx = static_cast<int>(spdt.energy) / STEP;
-                hist[idx] += 1.0;
-            }
+        for (const auto& spdt : rawData) {
+            int idx = static_cast<int>(spdt.energy) / STEP;
+            hist[idx] += 1.0;
         }
 
         QVector<double> vx, vy;
diff --git a/src/MainWindow.ui b/src/MainWindow.ui
index 18b05c9..334da95 100644
--- a/src/MainWindow.ui
+++ b/src/MainWindow.ui
@@ -104,6 +104,7 @@
    <addaction name="action_energy_scale_mrg"/>
    <addaction name="action_efficiency_scale_mrg"/>
    <addaction name="action_roi"/>
+   <addaction name="action_nuclideLib"/>
   </widget>
   <action name="action_help_manual">
    <property name="text">
@@ -179,6 +180,11 @@
     <string>感兴趣区</string>
    </property>
   </action>
+  <action name="action_nuclideLib">
+   <property name="text">
+    <string>核素库</string>
+   </property>
+  </action>
  </widget>
  <resources/>
  <connections/>