ELogs/JamesGolbourn

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.

Key Dates:

• Project Outline - 03/12/2018
• Project Progress Report - 31/01/2019
• Short Presentation - 08/02/2019 (9.00 am)
• Research Essay - 31/03/2019
• Thesis Deadline - 22/08/2019
• Final Presentation - 02/09/2019

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
    • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5714372/
  • Daily QA in proton therapy using a single commercially available detector
    • https://aapm.onlinelibrary.wiley.com/doi/pdf/10.1120/jacmp.v15i6.5005
  • Sun Nuclear QA 3 Fact Sheet
    • https://www.sunnuclear.com/documents/datasheets/dailyqa3-rfdaily.pdf
  • Technical Note: An efficient daily QA procedure for proton pencil beam scanning
    • https://aapm.onlinelibrary.wiley.com/doi/10.1002/mp.12787

• IBA Zebra:
  • Quality assurance of proton beams using a multilayer ionization chamber system
    • https://aapm.onlinelibrary.wiley.com/doi/epdf/10.1118/1.4817481