[Dsg-rich] Mirror 3 reflectivity results for bad areas

Tyler Lemon tlemon at jlab.org
Wed Aug 23 12:25:23 EDT 2017


Hello Dr. Rossi, 

Mindy and I have finished taking reflectivity measurements for Mirror 3. Attached are the results and the photo of the mirror with the measurement spots circled. 

As expected, all of these spots that look visibly bad have a lower reflectivity than spots that visibly look good. A summary of the results is in the table below. 

Spot # 
	Average Reflectivity Across All Wavelengths [%] 

6 
	83 

7 
	82 

8 
	75 

9 
	84 

10 
	74 

11 
	84 

12 
	86 

13 
	83 

Best regards, 
Tyler 
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