<html><head><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="">I am giving a talk and want to give credit for whomever made this image. It has a split FFT showing the Thon rings from an FEG vs a LaB6 gun. Anyone recognize it?<div class=""><br class=""></div><div class="">Thanks,</div><div class="">David DeRosier</div><div class=""><br class=""></div><div class=""><img apple-inline="yes" id="38721957-2D51-4C4A-A497-DECFF8EEFA0A" src="cid:32CF04A4-2AAF-461B-9075-DD39A3C9E88E@attlocal.net" class=""></div><div class=""><br class=""></div><div class=""><br class=""></div></body></html>