Training activity information
Details
Perform output factor calculations and measurements for electron beams
Type
Developmental training activity (DTA)
Evidence requirements
Evidence the activity has been undertaken by the trainee​.
Reflection on the activity at one or more time points after the event including learning from the activity and/or areas of the trainees practice for development.
An action plan to implement learning and/or to address skills or knowledge gaps identified.
Considerations
- Locating dmax for electrons, PDI vs PDD
- Chamber suitability vs field size
- Virtual source SSD
Reflective practice guidance
The guidance below is provided to support reflection at different time points, providing you with questions to aid you to reflect for this training activity. They are provided for guidance and should not be considered as a mandatory checklist. Trainees should not be expected to provide answers to each of the guidance questions listed.
Before action
- What is the definition of an electron beam output factor?
- What factors influence electron beam output (e.g., applicator size, energy)?
- What measurement techniques are used to determine output factors?
- What are the standard reference conditions for output factor measurements?
In action
- As you perform the calculations, are you applying the correct formulas and considering relevant correction factors?
- During the measurements, are you ensuring consistent setup and alignment?
- Are you comparing your measured values with the calculated output factors? If there are discrepancies, how are you investigating them?
On action
- How did you perform the output factor calculations for electron beams? How did your measured values compare to the calculated values?
- What did you learn about the factors that influence electron beam output? Were there any discrepancies between calculations and measurements, and how did you investigate them?
- How will this activity improve your ability to perform output factor determinations for electron beams in the future? What resources or further learning would support this development?
Beyond action
- How has your understanding of the factors influencing electron beam output evolved since this training activity?
- How do you ensure that output factors are regularly verified and updated?
- Considering your current practice, how has your confidence in performing and interpreting output factor calculations changed?
- Since performing these calculations and measurements, have you gained a deeper understanding of the complexities influencing electron beam output, perhaps through treatment planning or troubleshooting?
- How has this activity influenced your confidence in verifying electron beam doses?
Relevant learning outcomes
| # | Outcome |
|---|---|
| # 1 |
Outcome
Perform required measurements to characterise treatment beams. |
| # 3 |
Outcome
Apply appropriate guidance, regulations and codes of practice to ensure patient safety in all elements of practice. |