<html><body><div style="font-family: tahoma,new york,times,serif; font-size: 14pt; color: #009900"><div>hi george,<br></div><div>discussions with dario and sandro, and the e-mail from valery clearly indicates that the rich group needs to have the gas system ready by 1st of may 2017.<br data-mce-bogus="1"></div><div>amrit<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Valery Kubarovsky" <vpk@jlab.org><br><b>To: </b>"Tyler Lemon" <tlemon@jlab.org><br><b>Cc: </b>"dsg-rich" <dsg-rich@jlab.org><br><b>Sent: </b>Tuesday, March 21, 2017 5:57:37 PM<br><b>Subject: </b>Re: [Dsg-rich] RICH electronics and cooling system timeline<br></div><div><br></div><div data-marker="__QUOTED_TEXT__"><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000" data-mce-style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000;"><div><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;" data-mce-style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Hello Tyler,</span></div><div><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;" data-mce-style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">We will start the test of electronics boards this week. We moved the boxes from your room to <span style="color: rgb(51, 51, 51);" data-mce-style="color: #333333;">F252.</span></span></div><div><span style="color: rgb(51, 51, 51); font-family: arial, helvetica, sans-serif; font-size: 12pt;" data-mce-style="color: #333333; font-family: arial, helvetica, sans-serif; font-size: 12pt;">First of all we will check all 25K channels with generator and later on with PMTs at our laser stand. It</span></div><div><span style="color: rgb(51, 51, 51); font-family: arial, helvetica, sans-serif; font-size: 12pt;" data-mce-style="color: #333333; font-family: arial, helvetica, sans-serif; font-size: 12pt;">will take at least one month to finish this job. We plan to assemble the electronics panel in parallel with</span></div><div><span style="color: rgb(51, 51, 51); font-family: arial, helvetica, sans-serif; font-size: 12pt;" data-mce-style="color: #333333; font-family: arial, helvetica, sans-serif; font-size: 12pt;">the laser test so.</span></div><div><span style="color: rgb(51, 51, 51); font-family: arial, helvetica, sans-serif; font-size: 12pt;" data-mce-style="color: #333333; font-family: arial, helvetica, sans-serif; font-size: 12pt;"><br></span></div><div><span style="color: #333333;" data-mce-style="color: #333333;" color="#333333"><span data-mce-style="background-color: #ffffff; color: #ff0000;" style="background-color: rgb(255, 255, 255); color: rgb(255, 0, 0);">I think that we have to finish gas system approval by May</span> when the electronics panel will be completely assembled with</span></div><div><span style="color: #333333;" data-mce-style="color: #333333;" color="#333333">front-end electrons and PMTs. As for my knowledge Dave Meekins gave his recommendation how to improve gas system design.</span></div><div><span style="color: #333333;" data-mce-style="color: #333333;" color="#333333">Did we do what he requested? </span></div><div><span style="color: #333333;" data-mce-style="color: #333333;" color="#333333"><br></span></div><div><span style="color: #333333;" data-mce-style="color: #333333;" color="#333333">Regards,</span></div><div><span style="color: #333333;" data-mce-style="color: #333333;" color="#333333">Valery</span></div><div><span style="color: #333333;" data-mce-style="color: #333333;" color="#333333"> </span></div><br><br><hr id="zwchr"><div><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;" data-mce-style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><b>From: </b>"Tyler Lemon" <tlemon@jlab.org><br><b>To: </b>"dsg-rich" <dsg-rich@jlab.org><br><b>Sent: </b>Tuesday, March 21, 2017 5:04:47 PM<br><b>Subject: </b>[Dsg-rich] RICH electronics and cooling system timeline<br></blockquote></div><div><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;" data-mce-style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000" data-mce-style="font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000;"><div>Hello Valery,<br></div><br><div>This morning we received the RICH electronic boards. The boxes are in EEL 121 small cleanroom's gowning area. What would be the timeline for testing and installing the electronics?\<br></div><br><div>Also, when would the air cooling system be needed? A rough date is needed to give Dave Meekins, RICH gas system Design Authority, adequate time to approve the gas system since it is a pressure system. We cannot operate the air cooling system without DA approval.<br></div><br><div>Please let us know.<br></div><br><div>Best regards,<br></div><div>Tyler<br></div></div><br>_______________________________________________<br>Dsg-rich mailing list<br>Dsg-rich@jlab.org<br>https://mailman.jlab.org/mailman/listinfo/dsg-rich<br></blockquote></div></div><br>_______________________________________________<br>Dsg-rich mailing list<br>Dsg-rich@jlab.org<br>https://mailman.jlab.org/mailman/listinfo/dsg-rich<br></div></div></body></html>