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Radiation Math

Old 10-18-2016, 07:29 AM
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Default Radiation Math

Anyone good at calculating radiation exposure? Could use some help via PM.
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Old 10-18-2016, 07:30 AM
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Sure.. our company makes radiation sources for cancer therapy. Send me a PM
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Old 10-18-2016, 07:33 AM
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Originally Posted by dell30rb View Post
Sure.. our company makes radiation sources for cancer therapy. Send me a PM
Perfect, that's exactly what I'm looking for. PM enroute. Thanks!
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Old 10-18-2016, 04:53 PM
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That's pretty impressive, You ask a question about Rad math and in less than a minute get a response. Man, THT is full of remarkable connections.
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Old 10-18-2016, 07:19 PM
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Originally Posted by FishHound44 View Post
That's pretty impressive, You ask a question about Rad math and in less than a minute get a response. Man, THT is full of remarkable connections.
Its crazy how fast you can get real, usable, and accurate knowledge here.
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Old 10-18-2016, 07:40 PM
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This one really impressed the crap out of me. I figure I would get some smart math folks responding but dell30rb really hit the nail on the head and then some. Thanks!
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Old 10-19-2016, 03:50 AM
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The one minute turnaround is stunning. I've both given and received expert advice on many matters on this site. It's what keeps us all together as a "virtual family".
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Old 10-19-2016, 03:53 AM
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Damn that is amazing !
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Old 10-19-2016, 06:12 AM
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I just want "the rest of the story"
Do ya Glow in the dark?
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Old 10-19-2016, 06:34 AM
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Originally Posted by Capt Odyssea View Post
I just want "the rest of the story"
Do ya Glow in the dark?
Not yet. I will be getting 75mCi of radioactive iodine to kill any remaining thyroid tissue in my body. Basically thyoird was removed for cancer, then metastasis (metastasis is that type of tissue growing somewhere else) which was thyroid cancer inside a lymph node so now they want to kill it with the internal radiation.

I wanted to calculate what my exposure is to other people, aka when it's safe for others that I'm out and about again.
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Old 10-19-2016, 03:46 PM
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Depending on your situation, you may be required to stay in the facility for a few days. You will have a Nuclear medicine procedure Using I-131 it is a beta and gama emitter. The beta particle is the one doing the work on your thyroid but it is also the problem with you being in public or in contact with other people. Children and women of childbearing age are the most at risk. Any urine sweat or other bodily fluids waste will be contaminated until the Isotope has been removed from your body through the natural decay of the isotope and the biological excretion of the I131. Biological half life is what you are looking for and it will be dependent on your fluid intake exercise and metabolism. All areas that you are using will be contaminated and if you were in a hospital all linens would be kept in storage until background is reached. Any contact with contamination and possibly ingestion of contaminates will do the same to the contaminated persons normal thyroid as it is doing to yours. The physical half life is 8 days so it sticks around a while but your body gets rid of it much faster. The beta particle is stopped before it can leave your body but the gamma rays will be emitted to a distance of safety of about 6 feet.

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Old 10-19-2016, 04:56 PM
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Originally Posted by LODI QUACKER View Post
Depending on your situation, you may be required to stay in the facility for a few days. You will have a Nuclear medicine procedure Using I-131 it is a beta and gama emitter. The beta particle is the one doing the work on your thyroid but it is also the problem with you being in public or in contact with other people. Children and women of childbearing age are the most at risk. Any urine sweat or other bodily fluids waste will be contaminated until the Isotope has been removed from your body through the natural decay of the isotope and the biological excretion of the I131. Biological half life is what you are looking for and it will be dependent on your fluid intake exercise and metabolism. All areas that you are using will be contaminated and if you were in a hospital all linens would be kept in storage until background is reached. Any contact with contamination and possibly ingestion of contaminates will do the same to the contaminated persons normal thyroid as it is doing to yours. The physical half life is 8 days so it sticks around a while but your body gets rid of it much faster. The beta particle is stopped before it can leave your body but the gamma rays will be emitted to a distance of safety of about 6 feet.
Thanks for the response.

Almost unilaterally they are now doing this as outpatient to save the insurance $. Only when there is a significant threat to the general population are they doing inpatient.

I've read the guidelines and how the procedure works, but I want to know at what point I am emitting a "safe" amount and at what distances so I can be responsible instead of just head out into public not caring about others.
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Old 10-19-2016, 05:00 PM
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Originally Posted by LODI QUACKER View Post
Depending on your situation, you may be required to stay in the facility for a few days. You will have a Nuclear medicine procedure Using I-131 it is a beta and gama emitter. The beta particle is the one doing the work on your thyroid but it is also the problem with you being in public or in contact with other people. Children and women of childbearing age are the most at risk. Any urine sweat or other bodily fluids waste will be contaminated until the Isotope has been removed from your body through the natural decay of the isotope and the biological excretion of the I131. Biological half life is what you are looking for and it will be dependent on your fluid intake exercise and metabolism. All areas that you are using will be contaminated and if you were in a hospital all linens would be kept in storage until background is reached. Any contact with contamination and possibly ingestion of contaminates will do the same to the contaminated persons normal thyroid as it is doing to yours. The physical half life is 8 days so it sticks around a while but your body gets rid of it much faster. The beta particle is stopped before it can leave your body but the gamma rays will be emitted to a distance of safety of about 6 feet.

Damn! Excellent!! I had the "Radio Active Seeds" done for Prostate Cancer 6 yrs. ago. They explained the 1/2 Life of the Radiation and all..Also told Me that the Radiation I had was 1/2 the Radiation I could stand in a Life Time.Any comments on that?? I almost didn't go that route,but so far it's worked out good for me...Due for My yearly PSA test now...
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Old 10-19-2016, 05:07 PM
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Sorry to hear that Crazybeard,
Thoughts and prayers with you.
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Old 10-19-2016, 05:39 PM
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I worked in the DOD nuke program- when I had this treatment I could not clear a radiation monitor for a year.
That doesn't mean that you are unsafe to others, just that you are still radioactive.
The human body can safely absorb lots of radiation without real harm- it is a natural part of life. People that live in Denver absorb more naturally occurring radiation in a year than I was allowed to absorb as a Nuke worker in the same year.
One of the best descriptions given during training was that radioactive material is like dog crap- you can get it on you, in you and smear it on other things, and that radiation( the energy given off by the radioactive material) is like the smell from that same dog crap- you can smell it but you can't touch it or spread it around.
Good Luck and I hope it works for you.
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Old 10-19-2016, 05:43 PM
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Like I said, the Gamma radiation is no big deal, stay 6 feet away from people that you live with and they are safe. You will not be around the general public for enough time for them to get significant exposure from gamma radiation. But that is not the problem. The problem is with the beta particles and you contaminating your environment, by simply living you will be contaminating everything around you and everything you touch. That is why traditionally for the first two days they liked to isolate the patient when the majority of the isotope is being excreted. They also, after the patient leaves, clean and close the room until background radiation levels are reached and if possible the rooms on each side stay vacant as well. For prep for the patient, everything in the room would be wrapped in plastic sheeting to include the floors. Now, generally people are getting a larger dose than you are receiving for an initial ablation but the contamination is the same.
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Old 10-20-2016, 05:34 AM
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Originally Posted by LODI QUACKER View Post
Like I said, the Gamma radiation is no big deal, stay 6 feet away from people that you live with and they are safe. You will not be around the general public for enough time for them to get significant exposure from gamma radiation. But that is not the problem. The problem is with the beta particles and you contaminating your environment, by simply living you will be contaminating everything around you and everything you touch. That is why traditionally for the first two days they liked to isolate the patient when the majority of the isotope is being excreted. They also, after the patient leaves, clean and close the room until background radiation levels are reached and if possible the rooms on each side stay vacant as well. For prep for the patient, everything in the room would be wrapped in plastic sheeting to include the floors. Now, generally people are getting a larger dose than you are receiving for an initial ablation but the contamination is the same.
Honestly I would feel better if they did it as inpatient but that isn't an option in my case as you said he dose is not high enough.

What is your thoughts on exposure to something like a laptop computer? I know it will get contaminated but how long until it is safe after?
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Old 10-20-2016, 05:45 AM
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My wife went thru the same procedure 3 years ago. She received 100 mCi of I-131. Our daughter was 5yrs old at the time and was concerned about that so she left the hospital after the treatment and went to a vacation house for a week by herself. May not have been necessary but we thought it was the safest plan. Good luck.

Scott
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Old 10-20-2016, 05:49 AM
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Originally Posted by sfaatz View Post
My wife went thru the same procedure 3 years ago. She received 100 mCi of I-131. Our daughter was 5yrs old at the time and was concerned about that so she left the hospital after the treatment and went to a vacation house for a week by herself. May not have been necessary but we thought it was the safest plan. Good luck.

Scott
Definitely a good plan with a growing child. They are the most succeptible.

I plan on doing something similar. Too bad I can't fly right after. I'd go for a couple week vacation somewhere fun.
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Old 10-20-2016, 12:46 PM
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80 days will be the approximate time to complete background. Your body will get rid of it much quicker. That is why they like to isolate you initially to remove most of the isotope. You can do the same thing for much less money and better food. Go get a hotel room for 2-3 nights.

You can fly, you can get a written conformation that you had the procedure and fly away.
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