<html><head></head><body>Hi,<div><br></div><div>Here are the iron shield dimensions. </div><div><br></div><div><div><br>PMT Magnetic Shield<br> material: i DOM 1040 steel tube<br>* shield 7.6cm/7.0Cm OD/ID, 27cm length<br></div><div><br></div></div><div><br></div><div><br></div><div><br></div><div><br><div>
<div><div><div><div>--</div><div>Prof. Paul Eugenio</div><div>Florida State University</div><div>Department of Physics</div><div>Tallahassee, Florida, USA 32306</div><div><br></div><div>(850) 325-0314</div><div><a href="mailto:eugenio@fsu.edu">eugenio@fsu.edu</a></div><div><br></div></div></div></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
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<div><br><div>Begin forwarded message:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div><b>From: </b>Paul Eugenio <<a href="mailto:eugenio@fsu.edu">eugenio@fsu.edu</a>><br></div><div><b>Date: </b>June 3, 2011 11:27:18 AM EDT<br></div><div><b>To: </b>Beni Zihlmann <<a href="mailto:zihlmann@jlab.org">zihlmann@jlab.org</a>>, <a href="mailto:huttonc@jlab.org">huttonc@jlab.org</a>, Ian Winger <<a href="mailto:winger@cmmp.fsu.edu">winger@cmmp.fsu.edu</a>><br></div><div><b>Cc: </b>Mark Ito <<a href="mailto:marki@jlab.org">marki@jlab.org</a>><br></div><div><b>Subject: </b><b>Re: TOF drawings</b><br></div><br><div>Hi Beni,<br><br><br>This is the email follow up from today's phone call. Ian Winger is our Physics Shop design engineer. His contact information is below. <br><br>As I understand, for the statement of work (SOW) we will need only drawings for the components of a TOF module which FSU is constructing in house. Spec sheet will be provided for vendor purchases( i.e. PMT module specs, scintillator performance specs). The component drawings needed for the SOW are listed below. The scintillator drawings are just rectangular bars. The light guide design is currently being optimized, but Ian can provide a drawing of the base design with 7cm tapered section and bend. As I mentioned over the phone, we are looking into having the machine shop machine the curvature into the light guide as opposed to heating and bending via a jig.<br><br><br>Ian Winger<br>Florida State university<br>Physics Department Machine Shop<br>001 Keen Bldg.<br>Tallahassee, FL 32306<br><br>office: 850 644-2433<br><br><br><br><br>SOW Module component drawings:<br><br>Scintillator bars<br> material: Bicron BC-408/ Eljen EJ-200 equivalent<br>* plastic scintillator bar: 2.54cm x 6cm x 252cm // long bar<br>* plastic scintillator bar 2.54cm x 6cm x 120cm // short bar<br>* plastic scintillator bar 2.54cm x 3cm x 252cm // split bar<br><br>Light Guides<br> material: clear cast acrylic<br>* main light guides for long & short bars : 2.54x6 cross section to 4.6cm OD (see base design FSU)<br>* light guide for split bar: design will follow other light guide (finalized after optimization of main light guide)<br><br>PMT Magnetic Shield<br> material: i DOM 1040 steel tube<br>* shield 7.6cm/7.0Cm OD/ID, 27cm length<br><br>Shield Mount // clamp for mounting shield to cylindrical end of light guide<br>* design concept under development<br><br><br><br><br><br><br>--<br>Prof. Paul Eugenio<br>Florida State University<br>Department of Physics<br>Tallahassee, Florida, USA 32306<br><br>(850) 644-2585<br><a href="mailto:eugenio@fsu.edu">eugenio@fsu.edu</a><br><br><br><br>On May 31, 2011, at 12:04 PM, Beni Zihlmann wrote:<br><br><blockquote type="cite">Hi Paul,<br></blockquote><blockquote type="cite">we should start setting up drawings for the TOF that are needed for the SOW.<br></blockquote><blockquote type="cite">Tim assigned Chuck Hutton as designer to the project. Can you send us the<br></blockquote><blockquote type="cite">contact of your designer at FSU so that Chuck can get in contact with him<br></blockquote><blockquote type="cite">to provide the necessary information to get things rolling.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">thanks,<br></blockquote><blockquote type="cite">Beni<br></blockquote><br></div></blockquote></div><br></div></body></html>