ELogs/JamesGolbourn
< ELogs
Electronic Log for James Golbourn
To Do
- Email Alison for details of Hakan Nystrom.
- Get in contact with Laurent contact at Med Austrom about QA procedures.
- Prepare practice presentation for project (8/2/19)
- Write up report on meeting with UCLH.
- Look at what functioning centres are using as QA.
- Look at advantages and disadvantages of QA systems.
- Write research essay.
- Update presentation with corrections made.
Tasks Completed
- Presentation to PBT group.
- Project progress report.
- Project outline.
- First plan for research essay
Key Dates
Task | Deadline |
---|---|
Project Outline | 03/12/2018 |
Project Progress Report | 31/01/2019 |
Short Presentation | 08/02/2019 |
Research Essay | 31/03/2019 |
Thesis Deadline | 22/08/2019 |
Final Presentation | 02/09/2019 |
Research Essay First Plan
- Introduction:
- What is PBT and the theory?
- Different methods of beam production
- Pencil beam scanning and uniform scattering.
- What is Quality Assurance?
- Why is it needed?
- Relation to X-Ray QA and lack of consistency between facilities.
- Beam parameters - what needs to be measured
- Sections on different beam properties and characteristics:
- For each of these sections there should be a description of:
- What is it?
- Relation to patient dosimetry and why is it important?
- Methods of measurement.
- For each of these sections there should be a description of:
- Beam energy and range
- Beam output
- Spot size and symmetry
- Spot position and beam uniformity
- Commercial devices available for QA
- IBA Lynx
- IBA Matrixx
- IBA Zebra
- Sun Nuclear QA 3
- Various methods using these devices for QA
- Conclusion
Progress Report Outline
- Introduction to Proton beam therapy.
- What is Quality Assurance?
- Important beam characteristics.
- Commercially available devices such as the Matrixx, Lynx and Sun Nuclear QA3.
- Other methods for measuring beam properties.
Comments made about presentation
- Understand what range modulators do.
- Look into whether Zebra was initially designed for X-Rays.
- Zebra not often used for daily QA due to the very long initial set up time.
- Investigate film dosimetry e.g Gafchromic film.
- Research Lynx scintillator.
- Range calorimeter - need a moving absorber, e.g water tank, to measure energy and range.
- Know difference between scintillator screens and fibres - fibres use fibre optics and are not used due to needing something to read output from each fibre which is expensive.
- UCLH will have 4 treatment rooms.
- Put slide number on presentation.
- Expand on each daily QA:
- Table of devices
- Tolerances
- How long it takes
- Collect standards and tolerances on energy, spot size and output.
Useful Links for Research Essay
- Sun Nuclear QA 3 Device:
- A novel daily QA system for proton therapy
- Daily QA in proton therapy using a single commercially available detector
- Sun Nuclear QA 3 Fact Sheet
- Technical Note: An efficient daily QA procedure for proton pencil beam scanning
- IBA Zebra:
- Quality assurance of proton beams using a multilayer ionization chamber system