<html><body><div style="font-family: tahoma,new york,times,serif; font-size: 14pt; color: #009900"><div><p style="margin: 0px;" data-mce-style="margin: 0px;"><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';">Hello,</span></p><p style="margin: 0px; text-indent: 0.5in;" data-mce-style="margin: 0px; text-indent: 0.5in;"><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"> </span></p><p style="margin: 0px; text-indent: 0.25in;" data-mce-style="margin: 0px; text-indent: 0.25in;"><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';">DSG supports all phases of detector work from the component level to the detector itself by contributing to: </span></p><ol style=""><li><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"><span style="font: 7.0pt 'Times New Roman';" data-mce-style="font: 7.0pt 'Times New Roman';"> </span></span><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';">research, development, and fabrication (<span style="color: blue;" data-mce-style="color: blue;">e.g. Hall B Gas System, SVT …</span>),</span></li><li><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"><span style="font: 7.0pt 'Times New Roman';" data-mce-style="font: 7.0pt 'Times New Roman';"> </span></span><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';">instrumentation (<span style="color: blue;" data-mce-style="color: blue;">e.g. HDice, …</span>), <span style="font-size: 9pt;" data-mce-style="font-size: 9pt;"></span></span></li><li><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"><span style="font: 7.0pt 'Times New Roman';" data-mce-style="font: 7.0pt 'Times New Roman';"> </span></span><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';">software development and implementation (<span style="color: blue;" data-mce-style="color: blue;">e.g. LabVIEW and/or PLC programs for HPS, Torus, Solenoid, …</span>), </span></li><li><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"><span style="font: 7.0pt 'Times New Roman';" data-mce-style="font: 7.0pt 'Times New Roman';"> </span></span><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';">maintenance (<span style="color: blue;" data-mce-style="color: blue;">e.g. gas systems for detector testing: HTCC, MVT, FT, DC, …</span>),</span></li><li><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"><span style="font: 7.0pt 'Times New Roman';" data-mce-style="font: 7.0pt 'Times New Roman';"> </span></span><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';">repair (<span style="color: blue;" data-mce-style="color: blue;">e.g. CTOF pre-amplifier boards, …</span>), </span></li><li><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"><span style="font: 7.0pt 'Times New Roman';" data-mce-style="font: 7.0pt 'Times New Roman';"> </span></span><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';">and testing (<span style="color: blue;" data-mce-style="color: blue;">e.g. LTCC winston cones, RICH mirrors, FT electronics, …</span>).</span></li></ol><p style="margin: 0px; text-indent: 0.25in;" data-mce-style="margin: 0px; text-indent: 0.25in;"><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"> Work performed by DSG at the component level, <em>is and will continue to be documented and archived</em>. However, once a component, hardware or software, has been implemented in a larger instrument/detector, <em>DSG</em> <em>will not track changes made to the components or the detector</em>, <em>including the Hall B gas system.</em> </span></p><p style="margin: 0px; text-indent: 0.25in;" data-mce-style="margin: 0px; text-indent: 0.25in;"><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"> Documenting and archiving changes to the instrument/detector is the responsibility of the detector owners, <em>even if that work is done by DSG</em>; such changes will be done only at the detector owner’s <em>written</em> request posted to the appropriate DSG mailing list.</span><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"> </span></p><p style="margin: 0px; text-indent: 0.25in;" data-mce-style="margin: 0px; text-indent: 0.25in;"><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';">Generation of the THA, OSP and all associated safety documentations for reviews and/or operations is the responsibility of the detector owners. DSG will guide, as it has been doing, detector managers with their effort. </span></p><p style="margin: 0px; text-indent: 0.25in;" data-mce-style="margin: 0px; text-indent: 0.25in;"><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"> Finally, <em>DSG is not the keeper of spares</em> for any detectors. </span></p><p style="margin: 0px; text-indent: 0.25in;" data-mce-style="margin: 0px; text-indent: 0.25in;"><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"> <span id="transmark" style="display: none; width: 0px; height: 0px;"></span></span></p><p style="margin: 0px;" data-mce-style="margin: 0px;"><span style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';" data-mce-style="font-size: 12.0pt; line-height: 107%; font-family: 'Times New Roman','serif';"> Amrit Yegneswaran</span></p><br data-mce-bogus="1"></div></div></body></html>