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electronrt:userguide:tutorials:electron_bolus

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electronrt:userguide:tutorials:electron_bolus [2021/02/12 19:57] – Added IM Dose Scaling to Intensity Modulator guide anegronelectronrt:userguide:tutorials:electron_bolus [2022/05/05 14:39] (current) – [Intensity Modulator Device] dpatenaude
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     * The thickness to add to the bolus proximal surface (use a negative value to reduce height)     * The thickness to add to the bolus proximal surface (use a negative value to reduce height)
  
- Additionally by selecting the "Bolus Design History" you can see a list of every step in the bolus design. The last step is removable individually, and there is also the option to clear all steps and start from scratch. +Additionally by selecting the "Bolus Design History" you can see a list of every step in the bolus design. The last step is removable individually, and there is also the option to clear all steps and start from scratch. 
    
 <imgcaption beams_24|Bolus design history list>{{ :electronrt:userguide:tutorials:decimal_electronrt_beams_bolus_optimized_thickness_advanced_options_operator_history.png?direct&400 }}</imgcaption> <imgcaption beams_24|Bolus design history list>{{ :electronrt:userguide:tutorials:decimal_electronrt_beams_bolus_optimized_thickness_advanced_options_operator_history.png?direct&400 }}</imgcaption>
  
 +When designing an optimized thickness bolus, you also have the option to select the patient external structure. By default, this is set to the external structure defined in the course.
 + 
 +<imgcaption bolus_external|Bolus external structure selection>{{ :electronrt:userguide:tutorials:decimal_electronrt_beams_bolus_optimized_thickness_external.png?direct&400 }}</imgcaption>
 +
 +If you want to make changes to the beam without having the optimized thickness bolus re-calculate, there is a lock button that prevents the optimized bolus from changing during other beam changes (e.g.: changing the block shape will normally cause the bolus to re-compute). This will lock the bolus design and prevent any changes. If anything in the beam is changed after locking the bolus and the bolus is unlocked then the bolus will be re-computed using the new beam parameters.
 + 
 +<imgcaption bolus_lock_button|Bolus computation lock>{{ :electronrt:userguide:tutorials:bolus_lock_button.png?direct&400 }}</imgcaption>
 ===== Uniform Thickness Bolus ===== ===== Uniform Thickness Bolus =====
  
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 If you wish to import a bolus that is not currently in your structure list please refer to the [[electronrt:userguide:tutorials:dicom_import|DICOM Patient Import]] section of the user guide for how to re-import a structure set. If you wish to import a bolus that is not currently in your structure list please refer to the [[electronrt:userguide:tutorials:dicom_import|DICOM Patient Import]] section of the user guide for how to re-import a structure set.
 +
 ===== Intensity Modulator Device ===== ===== Intensity Modulator Device =====
  
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 **NOTE:** In order to add an IMET device the selected beam MUST have a valid bolus. **NOTE:** In order to add an IMET device the selected beam MUST have a valid bolus.
 +
 +<WRAP center round important 60%>
 +Circular applicator shapes (e.g.: Siemens 4x4) are not supported for intensity modulators.
 +</WRAP>
 +
  
 <imgcaption bolus_IMET1|IM Dose Scaling control>{{ :electronrt:userguide:tutorials:bolus_im_dose_scaling.png?direct&400 }}</imgcaption> <imgcaption bolus_IMET1|IM Dose Scaling control>{{ :electronrt:userguide:tutorials:bolus_im_dose_scaling.png?direct&400 }}</imgcaption>
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 <imgcaption bolus_IMET22|RHS options to hide/show devices>{{ :electronrt:userguide:tutorials:decimal_electronrt_beams_bolus_rhs.png?direct&400 }}</imgcaption> <imgcaption bolus_IMET22|RHS options to hide/show devices>{{ :electronrt:userguide:tutorials:decimal_electronrt_beams_bolus_rhs.png?direct&400 }}</imgcaption>
  
 +Users with [[electronrt:instructions_for_use:instructions_for_use#account_permissions|Elevated Physics level]] permissions are able to import a user-defined intensity modulation device. The imported device file must be a .csv file with the format: X,Y,Diameter for each pin on a new line. The values must be at the physical block/tray position and the pin diameters must match the supported modulator diameter list. 
 +
 +An example file is:
 +<code csv im_file_example.csv>
 +0.3,-1.55885,0.352
 +-0.3,1.55885,0.158
 +</code>
 +
 +<imgcaption user_im|Option to import user defined intensity modulator file>{{ :electronrt:userguide:tutorials:user_defined_intensity_modulation.png?direct&400 }}</imgcaption>
  
  
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