There are two special lectures, one on FFF beam Physics and the other on SBRT commissioning, these  special lectures are free to view. No charges for enrolment 

This course has got four lectures, the first lecture discusses the sources used in external beam radiotherapy, from superficial therapy to linear accelerators and the basic terminologies used, the second discusses the factors used for determination of dose such as PPD, TAR, TMR, TPR, SMR and SAR and their dependence on other factors, the third lecture discusses the calculation methods for MU / treatment time and the fourth lecture discusses treatment planning techniques for 2D and 3D treatments , basic tissue inhomogeneity correction and calculation for irregular fields.  There are about 10 MCQs for each lecture and the student has to complete them successfully to proceed to the next lecture.  A certificate can be downloaded once all the assignments are completed successfully.

You can entoll for this course free of charge till 25th for one week access. If you need longer access (a years) you will have to pay the enrolment fee.

The course fee is Indian Rupees 200 or US $3 (for enrolment from outside India).  For Payment in US$ please use  debit or credit card with the PayPal gateway.  To pay with Credit or Debit card, please click on "Send payment via PayPal"  below the USD and in the next page click on "Pay by Debit or Credit Card"  ( No need to have a PayPal account).