Differences

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--- electronrt:userguide:tutorials:electron_beams [2021/10/26 13:43] – [IMET-809] Beams Block info update anegron
+++ electronrt:userguide:tutorials:electron_beams [2022/05/02 16:01] (current) – [Electron Beam Normalization] dpatenaude
@@ Line 54: / Line 54: @@
         - The gantry angle is less than 5.0 or greater than 355.0 degrees
         - The couch angle is less than 10.0 or greater than 350.0 degrees
-      - **Beam Energy:** The minimum commissioned energy with an R90 large enough to reach the deepest portion of the distal surface of the target
+      - **Beam Energy:** The minimum commissioned energy with an R90 large enough to reach the deepest portion of the distal surface of the target.
-      - **Block Size:** The smallest fitting block size enabled for the selected treatment machine
+      - **Beam Normalization:** If a matching [[electronrt:userguide:tutorials:all_tutorials#site_settings|normalization template]] is found this will automatically be applied.
+      - **Block Size:** The smallest fitting block size enabled for the selected treatment machine.
 <imgcaption beams_6|Geometric Target Options>{{ :electronrt:userguide:tutorials:decimal_electronrt_beams_new_beam_target.png?direct&400 }}</imgcaption>
@@ Line 101: / Line 102: @@
 ==== Electron Beam Normalization ====
-In this block the user can specify how the electron beam will be normalized to scale the computed relative dose (%) to absolute (Gy) dose. The eRT application provides the following normalization options:
+In this block the user can specify how the electron beam will be normalized. Absolute dose based normalization can be selected to scale the computed relative dose (%) to absolute (Gy) dose.
-<WRAP center round tip 60%>
+If the Course is assigned a treatment site with a [[[electronrt:userguide:tutorials:all_tutorials#plan_defaults_templates|beam normalization template]] and the the selected geometric target is one of the prescription structures, the normalization will be set according to the template in the treatment site. If the the geometric target is not a prescription structure, the absolute dose value must be set by the user. Refer to [[electronrt:userguide:tutorials:all_tutorials#plan_defaults_templates|Editing the Site Settings]] to set a beam normalization template.
-**Note:**\\
-When creating a new Electron Beam you will be unable to see your beam approach or dose until a beam normalization is fully specified.
-</WRAP>
-<imgcaption beam_normalization|Beam Normalization>{{ :electronrt:userguide:tutorials:decimal_electronrt_beams_normalization.png?direct&400 |}}</imgcaption>
+<imgcaption beam_normalization|Absolute Dose Beam Normalization>{{ :electronrt:userguide:tutorials:absolute_dose_based_normalization.png?direct&400 |}}</imgcaption>
+If MU dose conversion tables exist in the machine selected for the plan, MU based normalization can be selected to scale the relative dose based on a user specified MU value per fraction. In this case, the absolute beam dose value is calculated based on the given MU value per fraction. MU dose conversion data tables can be imported in the [[:electronrt:userguide:tutorials:all_tutorials#machine_settings|Site Configuration Machine Settings]].
+<imgcaption beam_normalization|MU Based Beam Normalization>{{ :electronrt:userguide:tutorials:mu_based_normalization.png?direct&400 |}}</imgcaption>
+The eRT application provides the following options for absolute dose based normalization:
   * **Location**: Normalize the dose to a small spherical volume surrounding a specific point.
-    * Users are able to specify the sphere's center point, sphere radius, and the absolute dose value to set.
+    * Users are able to specify the sphere's center point and radius.
     * The average //Given Dose// within the specified sphere is computed and set to the //Absolute Beam Dose// value when normalizing the beam.
     * The normalization sphere will be shown in the sliced views when this location-based normalization option is used.
   * **Structure**: Normalize the dose to a structure from the imported DICOM Structure Set. The following structure options are available to normalize dose to a structure:
-    * **Min**: The minimum //Given Dose// within the specified structure is found and this value is set to the provided //Absolute Beam Dose// value.
+    * **Min**: The minimum //Given Dose// within the specified structure is found and this value is set to the //Absolute Beam Dose// value.
-    * **Mean**: The average //Given Dose// within the specified structure is computed and this value is set to the provided //Absolute Beam Dose// value.
+    * **Mean**: The average //Given Dose// within the specified structure is computed and this value is set to the //Absolute Beam Dose// value.
-    * **Vol**: The //Given Dose// covering the specified fraction of the structure is computed and this value is set to the provided //Absolute Beam Dose// value.
+    * **Vol**: The //Given Dose// covering the specified fraction of the structure is computed and this value is set to the //Absolute Beam Dose// value.
-  * **Isodose**: Set a specific //Given Dose// value to the specified //Absolute Beam Dose// value.
+  * **Isodose**: Set a specific //Given Dose// value to the //Absolute Beam Dose// value.
 <imgcaption beam_normalization_sphere|Location Normalization Sphere>{{ :electronrt:userguide:tutorials:decimal_electronrt_beams_normalization_sphere.png?direct&400 |}}</imgcaption>