diff --git a/jeecg-module-beta-gamma-analyser/src/main/java/org/jeecg/common/util/SelfBaseUtil.java b/jeecg-module-beta-gamma-analyser/src/main/java/org/jeecg/common/util/SelfBaseUtil.java
index e594ecf1..918cf945 100644
--- a/jeecg-module-beta-gamma-analyser/src/main/java/org/jeecg/common/util/SelfBaseUtil.java
+++ b/jeecg-module-beta-gamma-analyser/src/main/java/org/jeecg/common/util/SelfBaseUtil.java
@@ -864,6 +864,7 @@ public class SelfBaseUtil extends AbstractLogOrReport {
                     area += counts.get(i);
                 }
                 nuclideParam.put("area", area+"");
+                nuclideParam.put("exist", false);
             }
             param.put(mapKey, nuclideParam);
         }