<head><!-- BaNnErBlUrFlE-HeAdEr-start -->
<style>
#pfptBannerx29oh53 { all: revert !important; display: block !important;
visibility: visible !important; opacity: 1 !important;
background-color: #CFD3D7 !important;
max-width: none !important; max-height: none !important }
.pfptPrimaryButtonx29oh53:hover, .pfptPrimaryButtonx29oh53:focus {
background-color: #adb0b4 !important; }
.pfptPrimaryButtonx29oh53:active {
background-color: #8c8e91 !important; }
html:root, html:root>body { all: revert !important; display: block !important;
visibility: visible !important; opacity: 1 !important; }
</style>
<!-- BaNnErBlUrFlE-HeAdEr-end -->
</head><!-- BaNnErBlUrFlE-BoDy-start -->
<!-- Preheader Text : BEGIN -->
<div style="display:none !important;display:none;visibility:hidden;mso-hide:all;font-size:1px;color:#ffffff;line-height:1px;height:0px;max-height:0px;opacity:0;overflow:hidden;">
A dual-head gamma camera recently reported a FWHM of 16% on one head during an extrinsic flood. After rebooting the system, the FWHM for the same head was around 11%, within the manufacturer's specification for Co57. Technologists have noticed</div>
<!-- Preheader Text : END -->
<!-- Email Banner : BEGIN -->
<div style="display:none !important;display:none;visibility:hidden;mso-hide:all;font-size:1px;color:#ffffff;line-height:1px;max-height:0px;opacity:0;overflow:hidden;">ZjQcmQRYFpfptBannerStart</div>
<!--[if ((ie)|(mso))]>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="padding: 16px 0px 16px 0px; direction: ltr" lang="en"><tr><td>
<table border="0" cellspacing="0" cellpadding="0" style="padding: 0px 10px 5px 6px; width: 100%; border-radius:4px; border-top:4px solid #8c8e91;background-color:#CFD3D7;"><tr><td valign="top">
<table align="left" border="0" cellspacing="0" cellpadding="0" style="padding: 4px 8px 4px 8px">
<tr><td style="color:#000000; font-family: 'Arial', sans-serif; font-weight:bold; font-size:14px; direction: ltr">
This Message Is From an External Sender
</td></tr>
<tr><td style="color:#000000; font-weight:normal; font-family: 'Arial', sans-serif; font-size:12px; direction: ltr">
This message came from outside your organization.
</td></tr>
</table>
<![if ie]><br clear="all"><![endif]>
<table align="right" border="0" cellspacing="0" cellpadding="0" style="padding: 4px 0px 4px 0px"><tr>
<td style="direction: ltr"> <a target="_blank" href="https://us-phishalarm-ewt.proofpoint.com/EWT/v1/KGKeukY!ssQcF61qia0oIDqR_85OvcNRlV6ZHajp94QwUzQzeRNQ632grhFQzgFR-5p65DFa9rIENrFnkKU5jXQzGUwdA5XFMC62HzJ3fzmed7DrniDnMwlmNL-x7gtj7LbOugcU2gQxEGFITA$" style="mso-padding-alt: 7.5px; padding: 7.5px; border-radius: 2px; border: 1.5px solid #666666; "><strong style="font-weight: normal; color: #000000; text-decoration: none; font-family: 'Arial', sans-serif; font-size:14px; line-height: 40px; "> Report Suspicious </strong></a> </td>
</tr></table>
</td></tr></table>
</td></tr></table>
<![endif]-->
<![if !((ie)|(mso))]>
<div dir="ltr" lang="en" id="pfptBannerx29oh53" style="all: revert !important; display:block !important; text-align: left !important; margin:16px 0px 16px 0px !important; padding:8px 16px 8px 16px !important; border-radius: 4px !important; min-width: 200px !important; background-color: #CFD3D7 !important; background-color: #CFD3D7; border-top: 4px solid #8c8e91 !important; border-top: 4px solid #8c8e91;">
<div id="pfptBannerx29oh53" style="all: unset !important; float:left !important; display:block !important; margin: 0px 0px 1px 0px !important; max-width: 600px !important;">
<div id="pfptBannerx29oh53" style="all: unset !important; display:block !important; visibility: visible !important; background-color: #CFD3D7 !important; color:#000000 !important; color:#000000; font-family: 'Arial', sans-serif !important; font-family: 'Arial', sans-serif; font-weight:bold !important; font-weight:bold; font-size:14px !important; line-height:18px !important; line-height:18px">
This Message Is From an External Sender
</div>
<div id="pfptBannerx29oh53" style="all: unset !important; display:block !important; visibility: visible !important; background-color: #CFD3D7 !important; color:#000000 !important; color:#000000; font-weight:normal; font-family: 'Arial', sans-serif !important; font-family: 'Arial', sans-serif; font-size:12px !important; line-height:18px !important; line-height:18px; margin-top:2px !important;">
This message came from outside your organization.
</div>
</div>
<div id="pfptBannerx29oh53" style="all: unset !important; float: right !important; display: block !important; display: block; margin: 0px 0px 0px 16px !important; text-align: right !important; width: fit-content !important;">
<a id="pfptBannerx29oh53" href="https://us-phishalarm-ewt.proofpoint.com/EWT/v1/KGKeukY!ssQcF61qia0oIDqR_85OvcNRlV6ZHajp94QwUzQzeRNQ632grhFQzgFR-5p65DFa9rIENrFnkKU5jXQzGUwdA5XFMC62HzJ3fzmed7DrniDnMwlmNL-x7gtj7LbOugcU2gQxEGFITA$"
style="all: unset !important; display: inline-block !important; text-decoration: none">
<div class="pfptPrimaryButtonx29oh53" style="display: inline-block !important; display: inline-block; visibility: visible !important; opacity: 1 !important; color: #000000 !important; color: #000000; font-family: 'Arial', sans-serif !important; font-family: 'Arial', sans-serif; font-size: 14px !important; font-weight: normal !important; text-decoration: none !important; border-radius: 2px !important; padding: 7.5px 16px !important; margin: 3px 0 3px 16px !important; white-space: nowrap !important; width: fit-content !important;
border: 1px solid #666666">
Report Suspicious
</div>
</a>
</div>
<div style="clear: both !important; display: block !important; visibility: hidden !important; line-height: 0 !important; font-size: 0.01px !important; height: 0px"> </div>
</div>
<![endif]>
<div style="display:none !important;display:none;visibility:hidden;mso-hide:all;font-size:1px;color:#ffffff;line-height:1px;max-height:0px;opacity:0;overflow:hidden;">ZjQcmQRYFpfptBannerEnd</div>
<!-- Email Banner : END -->
<!-- BaNnErBlUrFlE-BoDy-end -->
<div id="__MailbirdStyleContent" style="font-size: 10pt;font-family: Arial;color: #000000;text-align: left" dir="ltr">A dual-head gamma camera recently reported a FWHM of 16% on one head during an extrinsic flood. After rebooting the system, the FWHM for the same head was around 11%, within the manufacturer's specification for Co57. Technologists have noticed the same intermittent issue and reported it to service. The manufacturer's FSE investigated, couldn't identify the issue and told them it was nothing to worry about because it didn't affect clinical images with Tc99m. <div><br></div><div>I think the FSE should keep trying. But he'll be shooting in the dark with a grudge unless we ask him to escalate it with the manufacturer. I'm not opposed to that but I thought I'd ask for others' insight first.<div><br></div><div>Can anyone on the list suggest what might cause an intermittent failure of energy resolution on only one head of a dual-head gamma camera?</div><div><br></div><div>Thanks in advance!</div><div>Adam<br><div><div><br></div><div class="mb_sig"><span style="color: rgb(32, 33, 36);font-size: 10pt">========================</span><br style="color: rgb(32, 33, 36);font-size: 10pt"><span style="color: rgb(32, 33, 36);font-size: 10pt">Adam C. Springer, MS, DABR®</span><br style="color: rgb(32, 33, 36);font-size: 10pt"><span style="color: rgb(32, 33, 36);font-size: 10pt">Medical Physicist</span><br style="color: rgb(32, 33, 36);font-size: 10pt"><span style="color: rgb(32, 33, 36);font-size: 10pt">KLS Physics Group, LLC</span><br style="color: rgb(32, 33, 36);font-size: 10pt"><span style="color: rgb(32, 33, 36);font-size: 10pt">124 Killgore Rd</span><br style="color: rgb(32, 33, 36);font-size: 10pt"><span style="color: rgb(32, 33, 36);font-size: 10pt">Ruston, LA 71270</span><br style="color: rgb(32, 33, 36);font-size: 10pt"><span style="color: rgb(32, 33, 36);font-size: 10pt">Office: 318-255-5033</span><br style="color: rgb(32, 33, 36);font-size: 10pt"><span style="color: rgb(32, 33, 36);font-size: 10pt">Mobile: 318-272-8292</span><br style="color: rgb(32, 33, 36);font-size: 10pt"><br style="color: rgb(32, 33, 36);font-size: 10pt"></div></div></div></div></div><img class="mailbird" width="1" height="1" style="border:0; width:1; height:1; display: none;" src="https://tracking.getmailbird.com/OpenTrackingPixel/?messageId=Mailbird-726faf04-82ea-48fd-8590-0aadeb6373e9@klsphysics.com&senderHash=0F2DDC98D08F0C0452566A6B0D180979EC750C295428DC2973B33C4CD628226F&recipientHash=E702B0FE8147651716008BF9ADAF4597164982A58E52E91E373D5FE3BF8B5A3D&internalId=ab3b960f-c237-4cba-870b-b8f0b370d404" alt="2a07404b-79a4-4789-b6fd-8b582af5f8db">