decimal App Documentation

User Tools

Site Tools

Trace:
electronrt:userguide:tutorials:skin_collimator

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
electronrt:userguide:tutorials:skin_collimator [2021/05/12 13:58] – [Skin Collimator Creation] Image description anegronelectronrt:userguide:tutorials:skin_collimator [2021/07/29 18:28] (current) – external edit 127.0.0.1
Line 14: Line 14:
   * **Thickness:** The value (in cm) of the thickness of the skin collimator from the surface of the patient external structure.   * **Thickness:** The value (in cm) of the thickness of the skin collimator from the surface of the patient external structure.
  
-**Note:** The app will automatically recalculate and display changes to the skin collimator as the thickness is edited.+**Note:** The default Thickness value is automatically calculated based on the beam energy. To edit the thickness, click the "edit" control to the right of the thickness value. The app will automatically recalculate and display changes to the skin collimator as the thickness is edited.
  
 <imgcaption skin_collimator_controls|Skin collimator controls>{{ :electronrt:userguide:tutorials:skin_collimator_controls.png?direct&400 }}</imgcaption> <imgcaption skin_collimator_controls|Skin collimator controls>{{ :electronrt:userguide:tutorials:skin_collimator_controls.png?direct&400 }}</imgcaption>
Line 20: Line 20:
 ===== Margins ===== ===== Margins =====
   * **Target Margin:** The value (in cm) of the margin around the target structure as projected to isocenter. A negative margin can be used to specify a contraction around the beam target while positive values will cause an expansion.   * **Target Margin:** The value (in cm) of the margin around the target structure as projected to isocenter. A negative margin can be used to specify a contraction around the beam target while positive values will cause an expansion.
 +  * **Block Margin:** The value (in cm) of the margin between the skin collimator opening shape and the electron block opening shape. When a skin collimator is added to the beam, the block opening shape becomes an expansion of the skin collimator opening shape according to the block margin value. Any edits made to the shape of the block opening will be transferred to the skin collimator opening shape when the users chooses to add skin collimation to the beam.
   * **Outer Margin:** The value (in cm) of the margin between the skin collimator opening shape and the outer shape of the collimator as projected to isocenter. A negative margin can be used to specify a contraction of the outer skin collimator shape while positive values will cause an expansion.   * **Outer Margin:** The value (in cm) of the margin between the skin collimator opening shape and the outer shape of the collimator as projected to isocenter. A negative margin can be used to specify a contraction of the outer skin collimator shape while positive values will cause an expansion.
  
Line 35: Line 36:
 ===== Collimator Avoidance Structures ===== ===== Collimator Avoidance Structures =====
  
-Using controls that are shared with electron blocks, the user may select one or more structures in the structure list here to add as an [[electronrt:userguide:tutorials:all_tutorials#avoidance_structures|Avoidance Structure]]. Avoidance structures will decrease the skin collimator opening to remove all areas within the projection of the structure.+Using controls that are shared with electron blocks, the user may select one or more structures in the structure list here to add as an [[electronrt:userguide:tutorials:all_tutorials#avoidance_structures|Avoidance Structure]]. Avoidance structures will decrease the skin collimator opening to remove all areas within the projection of the structure. Note that avoidance structures will also affect the shape of the electron block opening as it is an expansion of the skin collimator opening.
  
 <imgcaption collimator_avoidance|Skin collimator with avoidance structure>{{ :electronrt:userguide:tutorials:skin_collimator_avoidance_structure.png?direct&500 }}</imgcaption> <imgcaption collimator_avoidance|Skin collimator with avoidance structure>{{ :electronrt:userguide:tutorials:skin_collimator_avoidance_structure.png?direct&500 }}</imgcaption>
Line 41: Line 42:
 ===== Collimator Manual Edits ===== ===== Collimator Manual Edits =====
  
-By default manual editing of the block shape it disabled, but a user can elect to enable the ability to manually change the skin collimator opening shape in a manner that is identical to [[electronrt:userguide:tutorials:all_tutorials#manual_edits|Manually Editing]] the electron block opening shape.+By default manual editing of the block shape it disabled, but a user can elect to enable the ability to manually change the skin collimator opening shape in a manner that is identical to [[electronrt:userguide:tutorials:all_tutorials#manual_edits|Manually Editing]] the electron block opening shape. Note that manual edits will also affect the shape of the electron block opening as it is an expansion of the skin collimator opening.
      
 <imgcaption block_manual_edit|Skin collimator manual edits>{{ :electronrt:userguide:tutorials:skin_collimator_manual_edits.png?direct&400 }}</imgcaption> <imgcaption block_manual_edit|Skin collimator manual edits>{{ :electronrt:userguide:tutorials:skin_collimator_manual_edits.png?direct&400 }}</imgcaption>
electronrt/userguide/tutorials/skin_collimator.1620827884.txt.gz · Last modified: (external edit)