<html><body><div style="font-family: tahoma,new york,times,serif; font-size: 14pt; color: #009900"><div>hello marco, <br></div><div>i take<em> issue</em> with your opening paragraph.<br data-mce-bogus="1"></div><div>instead of writing:<br data-mce-bogus="1"></div><div><strong><span style="background-color: rgb(255, 255, 255); color: rgb(255, 0, 0);" data-mce-style="background-color: #ffffff; color: #ff0000;"><br data-mce-bogus="1"></span></strong></div><div><strong><span style="background-color: rgb(255, 255, 255); color: rgb(255, 0, 0);" data-mce-style="background-color: #ffffff; color: #ff0000;">Hi Tyler,</span></strong><br><span style="color: rgb(0, 128, 0);" data-mce-style="color: #008000;"><span style="background-color: rgb(255, 255, 255);" data-mce-style="background-color: #ffffff;">it would be important we are notified before such actions take</span></span><br><span style="color: rgb(0, 128, 0);" data-mce-style="color: #008000;"><span style="background-color: rgb(255, 255, 255);" data-mce-style="background-color: #ffffff;">place, in order we can plan mitigation measures and controls</span></span><br><span style="color: rgb(0, 128, 0);" data-mce-style="color: #008000;"><span style="background-color: rgb(255, 255, 255);" data-mce-style="background-color: #ffffff;">in advance.</span></span></div><div></div><div><span style="background-color: rgb(255, 255, 255); color: rgb(0, 0, 255);" data-mce-style="background-color: #ffffff; color: #0000ff;"><br data-mce-bogus="1"></span></div><div><span style="background-color: rgb(255, 255, 255); color: rgb(0, 128, 0);" data-mce-style="background-color: #ffffff; color: #008000;">i wish you had written:<br data-mce-bogus="1"></span></div><div><div><strong><span style="background-color: rgb(255, 255, 255); color: rgb(255, 0, 0);" data-mce-style="background-color: #ffffff; color: #ff0000;">Hi bob,volker, stepan, valery </span></strong><br><span style="background-color: rgb(255, 255, 255); color: rgb(0, 128, 0);" data-mce-style="background-color: #ffffff; color: #008000;">it would be important we are notified before such actions take</span><br><span style="background-color: rgb(255, 255, 255); color: rgb(0, 128, 0);" data-mce-style="background-color: #ffffff; color: #008000;">place, in order we can plan mitigation measures and controls</span><br><span style="background-color: rgb(255, 255, 255); color: rgb(0, 128, 0);" data-mce-style="background-color: #ffffff; color: #008000;">in advance.</span></div><div><span style="background-color: rgb(255, 255, 255); color: rgb(255, 0, 0);" data-mce-style="background-color: #ffffff; color: #ff0000;"><span style="color: rgb(0, 128, 0);" data-mce-style="color: #008000;"><span style="background-color: rgb(255, 255, 255);" data-mce-style="background-color: #ffffff;">amrit</span></span></span></div><div><span style="color: rgb(0, 128, 0);" data-mce-style="color: #008000;"><span style="background-color: rgb(255, 255, 255);" data-mce-style="background-color: #ffffff;"><br data-mce-bogus="1"></span></span></div><div><span style="color: rgb(0, 128, 0);" data-mce-style="color: #008000;"><span style="background-color: rgb(255, 255, 255);" data-mce-style="background-color: #ffffff;"><br data-mce-bogus="1"></span></span></div><div><strong><span style="background-color: rgb(255, 255, 255); color: rgb(255, 0, 0);" data-mce-style="background-color: #ffffff; color: #ff0000;"><br data-mce-bogus="1"></span></strong></div><div><span style="color: rgb(0, 128, 0);" data-mce-style="color: #008000;"><strong><span style="background-color: rgb(255, 255, 255);" data-mce-style="background-color: #ffffff;"><br data-mce-bogus="1"></span></strong></span></div><div><strong><span style="background-color: rgb(255, 255, 255); color: rgb(255, 0, 0);" data-mce-style="background-color: #ffffff; color: #ff0000;"><br data-mce-bogus="1"></span></strong></div></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Marco Contalbrigo" <mcontalb@fe.infn.it><br><b>To: </b>"Tyler Lemon" <tlemon@jlab.org><br><b>Cc: </b>"dsg-rich" <dsg-rich@jlab.org><br><b>Sent: </b>Friday, June 29, 2018 9:50:59 AM<br><b>Subject: </b>Re: [Dsg-rich] Fwd: rich hv<br></div><div><br></div><div data-marker="__QUOTED_TEXT__">Hi Tyler,<br>it would be important we are notified before such actions take<br>place, in order we can plan mitigation measures and controls<br>in advance.<br><br>If I am not mistaken, A-37 was a broken cable. Better leave<br>it unplugged.<br><br>Regarding the checks, we dislike to tun the system<br>without knowing what exactly has been done and restore.<br><br>If really only the HV were disconnected should not be<br>a big deal, but sounds strange LV and fibers did not<br>interfere with LTCC removal....<br><br>For example, inside the RICH there are LED lights<br>and camera for the aerogel check. Their LV channels<br>do not appear in the slow control to avoid any<br>unwanted turn on (to preserve MAPMTs). In case<br>of cable swap, we may turn on the wrong element and<br>stress or even damage the PMTs.<br><br>Our preference would be to make the checks during the<br>coll. meeting (10-13 July) when we will be there in<br>person.<br><br>Ciao, Marco.<br><br>On Fri, 29 Jun 2018, Tyler Lemon wrote:<br><br>> Hello Marco, Valery,<br>> <br>> Please see Morgan's email below.<br>> <br>> RICH HV was disconnected by Hall B Engineering to be able to remove LTCC sectors from the forward<br>> carriage. Yesterday, HV was reconnected to RICH.<br>> <br>> What checks would need to be run to ensure that HV is connected correctly to RICH?<br>> <br>> Best regards,<br>> Tyler<br>> <br>> ________________________________________________________________________________________________________<br>> From: "Morgan Cook" <mcookiv@jlab.org><br>> To: "Tyler Lemon" <tlemon@jlab.org><br>> Cc: dsg-internal@jlab.org<br>> Sent: Thursday, June 28, 2018 9:20:44 AM<br>> Subject: rich hv<br>> <br>> Hi Tyler,<br>> <br>> The rich detector hv is plugged back in. I plugged the 'spare' hv cable in to A-37 since the A-37 cable<br>> had been tied off to the side for whatever reason. You may want to run any checks on it sooner rather<br>> than later since we'll be moving the lift early next week.<br>> <br>> Regards,<br>> Morgan<br>> <br>><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>