<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"><meta http-equiv="Content-Type" content="text/html charset=us-ascii"><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">George K, Kevin<div class=""><br class=""></div><div class="">As Hari put it so eloquently, this was an excellent effort all round. We now can be sure that the gallium route to Cu67 production is feasible; the remaining factor of two discrepancy can be studied with future funding - which this measurement makes more likely!</div><div class=""><br class=""></div><div class="">Thanks</div><div class=""><br class=""></div><div class="">Andrew</div><div class=""><br class=""><div class=""><blockquote type="cite" class=""><div class="">On Jun 16, 2016, at 1:40 AM, Hari Areti <<a href="mailto:areti@jlab.org" class="">areti@jlab.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class=""><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt;" class=""><div class="">Dear George,<br class=""></div><div class="">Now we know that we can use Ga target. As you say, there could be many reasons for<br data-mce-bogus="1" class=""></div><div class="">the discrepancy. An obvious ones to me are the alignment error, amount of target material,<br data-mce-bogus="1" class=""></div><div class="">assumed purity of the target, etc.<br data-mce-bogus="1" class=""></div><div class=""><br data-mce-bogus="1" class=""></div><div class="">Let me take the opportunity to say how impressed I am with you for the relentless effort<br data-mce-bogus="1" class=""></div><div class="">you put in to make this test happen. After being turned away from one hall and then the<br data-mce-bogus="1" class=""></div><div class="">other, you persisted, carried out simulations and the test plans and more. Thanks to Kevin<br data-mce-bogus="1" class=""></div><div class="">for making things happen at lightening speed.<br data-mce-bogus="1" class=""></div><div class=""><br data-mce-bogus="1" class=""></div><div class="">-H<br data-mce-bogus="1" class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><hr id="zwchr" data-marker="__DIVIDER__" class=""><div data-marker="__HEADERS__" class=""><b class="">From: </b>"George Kharashvili" <<a href="mailto:georgek@jlab.org" class="">georgek@jlab.org</a>><br class=""><b class="">To: </b>"isotope-prod" <<a href="mailto:isotope-prod@jlab.org" class="">isotope-prod@jlab.org</a>><br class=""><b class="">Sent: </b>Wednesday, June 15, 2016 11:31:37 AM<br class=""><b class="">Subject: </b>[Isotope-prod] 18.5 MeV test - preliminary results<br class=""></div><div class=""><br class=""></div><div data-marker="__QUOTED_TEXT__" class="">The first look at the gallium activation test suggests that we produced ~4500 Bq of Cu-67. <br class="">Irradiation was done using 18.5 MeV beam on 1mm W radiator for 1 hour at average current of 2.5 microA, or 46 W-h. We had predicted 7000 Bq production in a 50 W-h irradiation. There are several differences between the model and irradiation, so I need to rerun the model and do a little more detailed analysis of the sample.<br class="">More to follow during the next couple of days.<br class=""><br class="">--<br class="">George Kharashvili<br class="">Jefferson Lab Radiation Control<br class="">757-269-6435<br class="">_______________________________________________<br class="">Isotope-prod mailing list<br class=""><a href="mailto:Isotope-prod@jlab.org" class="">Isotope-prod@jlab.org</a><br class=""><a href="https://mailman.jlab.org/mailman/listinfo/isotope-prod" class="">https://mailman.jlab.org/mailman/listinfo/isotope-prod</a><br class=""></div></div></div>_______________________________________________<br class="">Isotope-prod mailing list<br class=""><a href="mailto:Isotope-prod@jlab.org" class="">Isotope-prod@jlab.org</a><br class=""><a href="https://mailman.jlab.org/mailman/listinfo/isotope-prod" class="">https://mailman.jlab.org/mailman/listinfo/isotope-prod</a><br class=""></div></blockquote></div><br class=""></div></body></html>