Khan Summary Chapter 6
In the orthovoltage era, the skin was the limiting organ to delivering radiation.The skin erythema…
Shortcut Keys for the Eclipse TPS
The following are shortcut keys for the Eclipse TPS that I thought could have potential use…
Notes on Proton Planning
The accuracy of a delivered photon treatment is more of an isocentricity question in that if the…
Khan Chapter 5 Summary
As radiation pass through media, it may strip electrons from atoms. This kind of radiation is…
Khan Chapter 27 Summary
Protons that traverse through a medium can interact by inelastic collisions or elastic scattering…
Khan Chapter 4.5 Summary
The linear accelerator uses high-frequency electromagnetic waves to accelerate electrons to…
Khan Chapter 3 Summary
A vacuum sealed x-ray tube is made up of a cathode (negative electrode) and anode (positive…
Khan Chapter 2 Summary
A radioactive nucleus with excess energy may distribute enough energy onto a nucleon for it…
Khan Chapter 1 Summary
The atom is made up of a nucleus and a surrounding electron cloud that orbits the nucleus…
Basic IMRT QA/Portal Dosimetry Guide
As opposed to using a phantom and ionization chamber for pre-treatment verification, a portal…
Basic Optimization Guide
To limit dose to an OAR during optimization, you may find yourself using numerous upper objectives. Every one of these objectives are assigned a priority, and when you have numerous…
Avoidance Sector Guide
Avoidance sectors are regions along the arc rotation that the dosimetrist has specified that no dose be deposited. During treatment, the gantry will rotate as normal through an avoidance sector,…