<html><body><div style="font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000"><div>Hello all,<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>We have performed the spot test for RICH mirrors 1 and 2. The d0 to be fit are in the attached text files and also in the excel files. For mirror 2, we had some sort of error where the observed d0 was not as expected. We ended up repeating several measurements for mirror 2 in order to ensure the CCD and scripts were working correctly. This is noted in a column labled "comments" in the mirror 2 excel sheet.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>From the measurements, the minimum d0 observed and the distance from the CCD to the wall (z) are as follows:<br></div><div><br data-mce-bogus="1"></div><div>Mirror 1:<br data-mce-bogus="1"></div><div> d0 = 1.549 mm<br></div><div> z = 2725 mm<br></div><div><br data-mce-bogus="1"></div><div>Mirror 2:<br data-mce-bogus="1"></div><div> d0 = 1.370 mm<br></div><div> z = 2725 mm<br></div><div><br data-mce-bogus="1"></div><div>After subtracting the thickness of the mirror (25 mm) from each z result, both mirrors are right at z = 2700 mm.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>This afternoon, we also tried to run the d0-fit-z0-pdf macro that is on the Debian PC but it resulted in "nan" for d0 and z0 every time it ran. We are unsure of what is causing the error but do have some questions regarding the macro:<br data-mce-bogus="1"></div><div>- In what directory should the scan.txt file containing the z and d0 values be stored in to run the macro?<br data-mce-bogus="1"></div><div>- Would the macro need to be re-compiled?<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>We will continue to debug the macro in the mean time to get it to run successfully.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Best regards,<br data-mce-bogus="1"></div><div>Tyler<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div></div></body></html>