diff --git a/compact/erich.xml b/compact/erich.xml
index 0dca595123975379eefb9b87f72fc069f6f70191..8d1719a85e88f654fda505608a207c31367d87c2 100644
--- a/compact/erich.xml
+++ b/compact/erich.xml
@@ -157,7 +157,11 @@
 
 <services>
   <comment> SJJ: random standin for readout + electronics + cooling @FIXME </comment>
-  <component name="aluminum" thickness="10*mm" vis="RICHServiceVis" material="Aluminum"/>
+  <component name="aluminum" thickness="5*mm" vis="RICHServiceVis" material="Aluminum"/>
+  <component name="air" thickness="30*mm" material="Aluminum"/>
+  <component name="aluminum" thickness="5*mm" vis="RICHServiceVis" material="Aluminum"/>
+  <component name="air" thickness="30*mm" material="Aluminum"/>
+  <component name="aluminum" thickness="5*mm" vis="RICHServiceVis" material="Aluminum"/>
 </services>
 
 </sensors>