Latest revision as of 06:22, 5 February 2009

Shielding and Cosmic Ray Counts

We used detector C. HV is on 1360 Volts.

@@ Line 1: / Line 1: @@
-=Lead Between Two Detectors=
+=Shielding and Cosmic Ray Counts=
-  In this test, we put some layers (thickness) of lead between two detectors to test how much lead to we need to shield comics rays.
+We used detector C. HV is on 1360 Volts.
-  We will do coincidence of signals from two detectors. If we can see coincident signal, that means cosmic rays can go through those
+{| border="1" cellpadding="20" cellspacing="0"
-layers of lead between them.  We will start from 2 layers of lead, then increase by 1 layer.
+|-
+|Layers of lead
+|counts/5min
+|-
+|2||250
+|-
+|4 ||  223
+|-
+| ||
+|-
+| ||
+|-
+|}
+[http://wiki.iac.isu.edu/index.php/PhotoFission_with_Polarized_Photons_from_HRRL Go Back]