Avinash Rao Kuppa

6 Questions 8 Answers 0 Followers

Questions related from Avinash Rao Kuppa

In an external beam radiotherapy, will the electron applicator has any effect on flatness of the beam ?

I would like to understand if an Monty Carlo simulation is made for an External beam radiotherapy system (6 MeV) only with primary and secondary collimators, will the flatness vary because of not...

02 August 2016 9,212 5 View

Will the DRR be constructed by a TPS from the CT images?

Can any one help me if a DRR (Digitally reconstructed radiograph) image will be provided by TPS ? If yes then will there be a DICOM tag no for such images. If TPS doesn't provide DRR image where...

14 December 2015 9,005 5 View

What is the requirement of having a field light on a radiotherapy machine which delivers IMRT or VMAT etc ?

In the current radiotherapy machines which deliver VMAT, IMRT, SRS or SBRT, what is the role of field light. In a conventional 3D-CRT it is understood the requirement of field light, where you get...

26 March 2015 7,665 7 View

On an SRS and SBRT LINAC, is it necessary to have an orthogonal KV imaging or can it be around 100 deg, etc?

The majority of stereotactic imaging units combined with a LINAC use two sets of KV beams which are placed 90 degrees apart for getting a stereotactic image. If the angle between the KV beam...

15 April 2014 6,179 3 View

On a radiotherapy LINAC with IMRT, IGRT modes, how important is it to have a Collimator rotation ?

Usually all conventional radiotherapy LINAC have a collimator rotation, like varian elekta etc. But in the recent machines like Tomotherapy or VERO brain lab, the collimatort rotation is missing....

12 February 2014 8,378 5 View

Can anyone help me out with literarure on how to design a bow tie filter for CBCT?

I would like to know how to design a bow tie filter for CBCT, the material to be used for the same.

03 February 2014 7,073 1 View