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Hello again, For those interested – I managed to scan in the Operation and Maintenance manual (attached ) :) Also stapled to the manual (and included in the attachment) is an 8 page “What you should know about X-ray Protection” for your reading</div>
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<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif">Hello again,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif">For those interested – I managed to scan in the Operation and Maintenance manual (attached ) :)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif">Also stapled to the manual (and included in the attachment) is an 8 page “What you should know about X-ray Protection” for your reading pleasure.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB"> </span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Kind regards,</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB"> </span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Thor Bjarnason, PhD, PEng, FCCPM</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Medical Physicist</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Interior Health, Kelowna, BC
</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Office: (250) 980-6157 | Mobile: (250) 826-0722
</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Thor.Bjarnason@interiorhealth.ca</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB">From:</span></b><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"> Bjarnason, Thor [IH]
<br>
<b>Sent:</b> 15 September 2026 12:46 PM<br>
<b>To:</b> International Diagnostic Medical Physics List <intl_dxmedphys_wd_osu_list@lists.osu.edu><br>
<b>Subject:</b> RE: Help aging an x-ray machine<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif">Hi All,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif">I got a few responses here and I appreciate everyone who got back to me. I thought I would send an update. It is a 1940s vintage GE D3 “Mobile Shockproof x-ray unit”. The earliest
date written in the manual by someone is 1945 and the Technique Chart dates from 1937. Lumbar Spine exposure 30s. Stomach 1.5 s. Fetus (!!) 5s.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif">I got back to the site and hauled this thing to my office and took the tube out today. The machine still has the manual! The tube was much smaller than I was expecting. :)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB"> </span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Kind regards,</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB"> </span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Thor Bjarnason, PhD, PEng, FCCPM</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Medical Physicist</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Interior Health, Kelowna, BC
</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Office: (250) 980-6157 | Mobile: (250) 826-0722
</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB"><a href="mailto:Thor.Bjarnason@interiorhealth.ca">Thor.Bjarnason@interiorhealth.ca</a></span><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB"> </span><span lang="EN-CA" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB">From:</span></b><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"> Intl_dxmedphys_wd_osu_list <<a href="mailto:intl_dxmedphys_wd_osu_list-bounces@lists.osu.edu">intl_dxmedphys_wd_osu_list-bounces@lists.osu.edu</a>>
<b>On Behalf Of </b>Bjarnason, Thor [IH] via Intl_dxmedphys_wd_osu_list<br>
<b>Sent:</b> 05 May 2026 6:35 PM<br>
<b>To:</b> International Diagnostic Medical Physics List <<a href="mailto:intl_dxmedphys_wd_osu_list@lists.osu.edu">intl_dxmedphys_wd_osu_list@lists.osu.edu</a>><br>
<b>Subject:</b> [Intl_DxMedPhys] Help aging an x-ray machine<o:p></o:p></span></p>
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If you suspect this is a phishing or fraudulent email please forward it to <a href="mailto:spam@interiorhealth.ca">
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white">Hi All, Anyone by chance know the age of this x-ray machine? It is a GE. There is a Operation and Maintenance manual beside the unit and I could only leaf through
it briefly. That was for a “Model D3 Mobile Shockproof X-ray unit”.</span><span style="font-size:1.0pt;font-family:"Arial",sans-serif;color:white"> </span><span style="font-size:1.0pt;color:white"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif">Hi All,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif">Anyone by chance know the age of this x-ray machine? It is a GE.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif">There is a Operation and Maintenance manual beside the unit and I could only leaf through it briefly. That was for a “Model D3 Mobile Shockproof X-ray unit”. But that might
not be this machine. There was also an old looking generator nearby (base in lower frame) with the cable cut and no tube in site.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif">I did a quick internet search but am on the road testing equipment this week so gave up pretty quickly.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Kind regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Thor Bjarnason, PhD, PEng, FCCPM</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Senior Medical Physicist, Medical Imaging, Interior Health;</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Clinical Associate Professor, Department of Radiology, University of British Columbia;</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif;mso-fareast-language:EN-GB">Adjunct Professor, Department of Physics, University of British Columbia Okanagan</span><o:p></o:p></p>
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