<html><body><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000"><div>Hi Doug,</div><div><br data-mce-bogus="1"></div><div>Since members of the DSG are not on call, Hall B engineering staff will be responsible outside of normal working hours, just like for everything else. This subject has already been covered. <br></div><div><br data-mce-bogus="1"></div><div>I will begin gas flow to the drift chambers this morning.The gas will flow all weekend. The Hall B engineering on call may receive alarms, etc. These folks need training on what to do in case of alarms. This is a critical Hall B system, improper operation may result in equipment damage. Training is essential.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>George. <br></div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Doug Tilles" <tilles@jlab.org><br><b>To: </b>"George Jacobs" <jacobsg@jlab.org><br><b>Cc: </b>"Bob Miller" <rmiller@jlab.org>, "Volker Burkert" <burkert@jlab.org><br><b>Sent: </b>Friday, May 5, 2017 6:15:38 AM<br><b>Subject: </b>Detector Gas System<br></div><div><br></div><div data-marker="__QUOTED_TEXT__">George<br><br>Sometime ago I was told by the Hall Leader the DSG will cover the Detector Gas system and Gas Shed. Yesterday the Chief Engineer said the same.<br></div><div><br></div><div data-marker="__SIG_POST__">-- <br></div><div>George Jacobs<br>Physics Detector Support Group<br>Jefferson Lab<br>12000 Jefferson Ave.<br>STE 12<br>Newport News, VA 23606<br><br>(office) 757-269-7115<br><br>(cell) 757-876-0480<br><br>(email) jacobsg@jlab.org<br><br>(website) https://userweb.jlab.org/~jacobsg<br></div></div></body></html>