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<p>Hi Gaters,</p>
<p>Recently, I reported on carrying out CT dosimetry where I want to record doses from a different number of runs or times. I am not using any radioactive source in my simulation just an imported x-ray spectrum. Based on David advice early on the two options
of starting GATE simulation. I tried the following</p>
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</p>
<p></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal; background-image: initial; background-">
<span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#212121;mso-fareast-language:
EN-NZ">/gate/application/setTotalNumberOfPrimaries 10000<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal; background-image: initial; background-">
<span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#212121;mso-fareast-language:
EN-NZ">/gate/application/start<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal; background-image: initial; background-">
<span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#212121;mso-fareast-language:
EN-NZ">and </span></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal; background-image: initial; background-">
<span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#212121;mso-fareast-language:
EN-NZ"></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal; background-image: initial; background-">
<span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#212121;mso-fareast-language:
EN-NZ">/gate/application/setNumberofPrimariesPerRun 10000<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal; background-image: initial; background-">
<span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#212121;mso-fareast-language:
EN-NZ">/gate/application/start<o:p></o:p></span></p>
All the above gave me the same results and I could not move my gantry even though I have rotation defined. </span>
<p></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal; background-image: initial; background-">
<span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#212121;mso-fareast-language:
EN-NZ">What I have done is to replace </p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px; line-height: normal; background-image: initial;">
<span style="font-size: 11.5pt; font-family: "Segoe UI", sans-serif; color: rgb(33, 33, 33);">/gate/application/setTotalNumberOfPrimaries 10000<o:p></o:p></span></p>
<div><span style="font-size: 11.5pt; font-family: "Segoe UI", sans-serif; color: rgb(33, 33, 33);">with
<p class="MsoNormal" style="margin-bottom: 0.0001pt; font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px; line-height: normal; background-image: initial;">
<span style="font-size: 11.5pt; font-family: "Segoe UI", sans-serif; color: rgb(33, 33, 33);">/gate/source/sourcename/setActivity 10000 Bq thereby using<o:p></o:p></span></p>
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<span style="font-size: 11.5pt; font-family: "Segoe UI", sans-serif; color: rgb(33, 33, 33);"><br>
</span></p>
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<span style="font-size: 11.5pt; font-family: "Segoe UI", sans-serif; color: rgb(33, 33, 33);"></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal; background-image: initial; background-">
<span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#212121;mso-fareast-language:
EN-NZ">/gate/application/setTimeStart 0. s<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal; background-image: initial; background-">
<span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#212121;mso-fareast-language:
EN-NZ">/gate/application/setTimeSlice 1 s<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal; background-image: initial; background-">
<span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#212121;mso-fareast-language:
EN-NZ">/gate/application/setTimeStop 1 s<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal; background-image: initial; background-">
<span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#212121;mso-fareast-language:
EN-NZ">/gate/application/startDAQ<o:p></o:p></span></p>
Using this idea, I will able to record higher doses as I increase the number of runs. I think am getting the results I expected but not sure is the correct way to go about as the start up protocol is kind of strictly for PET.</span>
<p></p>
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<span style="font-size: 11.5pt; font-family: "Segoe UI", sans-serif; color: rgb(33, 33, 33);">If what I have done is wrong. I would require the help of someone who has done a similar CT dosimetry simulation to help me do my first simulation. Thanks</span></p>
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<span style="font-size: 11.5pt; font-family: "Segoe UI", sans-serif; color: rgb(33, 33, 33);"><br>
</span></p>
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<span style="font-size: 11.5pt; font-family: "Segoe UI", sans-serif; color: rgb(33, 33, 33);">Best regards,</span></p>
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<span style="font-size: 11.5pt; font-family: "Segoe UI", sans-serif; color: rgb(33, 33, 33);">Emmanuel Marfo</span></p>
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<span style="font-size: 11.5pt; font-family: "Segoe UI", sans-serif; color: rgb(33, 33, 33);">University of Otago</span></p>
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<span style="font-size: 11.5pt; font-family: "Segoe UI", sans-serif; color: rgb(33, 33, 33);">Student</span></p>
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