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<div class="moz-cite-prefix">Hi Pablo,<br>
thank you for the great work you have done.<br>
I have some doubts concerning the curvature radius. The
theoretical value is 2700 mm the inner and 2725mm the outer.
Looking at the measured points taken with the CMM machine seems
that the measurements were concentrated on the edge mirror only
with a few points in the central part of the back surface as you
can see in the picture below. In this way the fit error might be
large. Maybe some more points taken in the central part of the
mirror might help to reduce the error in the curvature radius
estimation.<br>
Ciao<br>
Sandro <br>
<br>
<img src="cid:part1.06AC7093.068F6EEF@lnf.infn.it" alt=""><br>
<br>
<br>
Il 30/06/2016 23:12, Pablo Campero ha scritto:<br>
</div>
<blockquote
cite="mid:172486318.4685062.1467321164908.JavaMail.zimbra@jlab.org"
type="cite">
<pre wrap="">Hello,
I looked at the Mirror-5C in Auto-CAD-3D, and I've generated all the 3D-points for the edges (See picture attached) to take the measurements and calculating the average thickness of the four sides; as you can see on the attached table.
The mirror thickness average was 25.08[mm] with a SE of 0.81. Besides I calculated the radio sphere for this coordinates and it gave me a value of 2751.06[mm].
Best Regards
Pablo Campero
Detector Support Group. </pre>
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<br>
<p><br>
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<pre class="moz-signature" cols="72">--
-----------------------------------------
Dr. Eng. Sandro Tomassini
Istituto Nazionale di Fisica Nucleare
Laboratori Nazionali di Frascati
P.O.Box 13 00044 Frascati (RM) Italy
Tel. office: +39 06 9403 2919/8089
Fax: +39 06 94032256
e-mail: <a class="moz-txt-link-abbreviated" href="mailto:sandro.tomassini@lnf.infn.it">sandro.tomassini@lnf.infn.it</a>
<a class="moz-txt-link-freetext" href="http://www.lnf.infn.it/">http://www.lnf.infn.it/</a>
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