diff --git a/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 4.md b/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 4.md
index d25da79a..d1972160 100644
--- a/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 4.md	
+++ b/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 4.md	
@@ -27,7 +27,7 @@ Background count 56 2 minutes - 0.48
 | ------------------- | -------------- |
 | 0                   | 797            |
 | 1120                | 542            |
-| 2066                |                |
+| 2066                | 537            |
 | 3448                | 507            |
 | 7367                | 395            |
 | 1k + 3k             | 431            |
@@ -35,6 +35,6 @@ Background count 56 2 minutes - 0.48
 | 3000+7000           | 323            |
 | 2000+7000           | 357            |
 | 2x 7k               | 290            |
-|                     |                |
+| 2x 7k background    |                |