I am receiving external beam therapy from a linear accelerator. Here is a picture of the machine:

If you are interested the following website gives some very specific information about the linear accelerator
http://www.radiologyinfo.org/en/info.cfm?pg=ebtSimply stated, all seven of my areas have been mapped out and the dose information entered into a computer that operates the linear accelerator. The linear accelerator puts out high energy x-rays that are shaped exactly to match each area. The arm of the machine is called a gantry and it rotates around my body positioning itself for each area. When the gantry is above me I can see metal pieces moving to form different shapes as it moves to a new position/area.
A cone is placed on the end of the gantry for the two areas that receive electron treatment. You would think a cone would be cone shaped, right? Well it is not, instead it is a square metal frame and the template for each of the two areas slides onto the bottom of the frame.
Two radiation therapists work with me, throughout the treatment they work together to carefully check measurements and positioning. Both yesterday and today they too have used permanent markers to create dots, dashes, solid lines, and x's on my body. The first treatment they used blue and purple markers, today they used green and orange markers - my chest, neck, and underarm are now a colorful road map. They were so proud of their work that today they took Polaroid pictures - I'm teasing of course - the pictures were documentation of the treatment areas.
In addition I also officially have a tattoo - in fact I have three tattoos. I wanted hearts or flowers but the only choice was a dot so in the midst of my colorful road map I have three dots.
So, pretty much the treatment sessions move along quickly. Randy and I enter a side door which leads into a small waiting room with dressing rooms behind it. I remove my upper clothing, place them in a locker, and put on a gown. After changing I join Randy in the waiting room and usually have only a few minutes before the radiation therapists are ready for me. Randy stays in the waiting room drinking coffee and having a cookie, muffin, or pastry and chats with the other spouses. My time in the treatment room is very short - the therapists are efficient and although the delivery is not determined by time but rather by dose of radiation the time for each area is anywhere from about 15 to 30 seconds.
As of now my treatment plan is Monday through Friday with weekends off for a total of 28 treatments to all seven areas followed by a boost of 8 - 10 treatments only for the incision site which runs from almost the middle of my chest to under my arm. Two down and several more to go ... it is far less than the chemo treatment time. I will diligently apply the RadiaGel three times a day and follow the nutrition plan recommended by Dr. Davis as I count down the treatments. I will write about the nutrition recommendations on another post.