| Line 131: |
Line 131: |
| | |- | | |- |
| | |} | | |} |
| | + | *A beam enclosure has been constructed to shield observers from harmful UV light. It is made from Poly(methyl methacrylate)which filters 193nm light very well as shown by the following ([http://www.gclabsite.com/files/publication/gc47_p28.pdf graph]). |
| | + | [[File:PMMA_UV.png|center|thumb]] |