In the foregoing provision, we used the raze of cesium-137 in trout and char to designate the ecological half-life for cesium in a lake. That provision was not animated in the radiation dose to the fish; the fish were barely life used as a resources to investigate the radioactivity fostering in a Chernobyl-contaminated lake. In this provision, so-far, we gain criticize some irrelative methods of estimating the organ radiation doses to rainbow trout from uptake of I-131. You gain attend-to that the methods used are very common to the approaches used to assess organ doses in humans.
Read the pamphlet adown and defense the questions that supervene.
Q1: The axioms used in this exemplification was naturalized on an studied indemnify of iodine-131 into Fern Lake in Washington State in 1957. (The radioactive iodine was life used as a tracer to supervene the kinetics of firmly-fixed iodine in the lake.) Presume the radioactivity was indemnifyd into the lake on July 1 and measurements implied that by August 1 the iodine-131 tension had reached on tenth of its former estimate. What would be the scold uniform for exponential disengage [Hint: consider b in equation (2)], and would would be the halftime for iodine-131 in Fern Lake?
Q2: Now presume that 100 MBq had be indemnifyd into the lake on July 1. What would be the tension of iodine-131 in a normal trout's thyroid on September 1? [Hint: you insufficiency to use the b you considerd in Q1 and unfold equation (3) for B(t) where the thyroid is the "source organ."]
Q3: If a trout's thyroid is 5% of its sum assemblage concretion, and the dose scold to a trout's thyroid in Fern Lake on September 1 is 0.005 mGy per day, then what is the Dose Conversion Factor (DCF) in mGy d-1 per Bq kg-1 for iodine-131 dose to the thyroid in trout? [Hint: You are going to insufficiency equation (4).]
[Note: You insufficiency no other instruction than what you've interpret in the two declaration over, to defense these questions.]
please try defenseing the questions from your own control and don’t true observation from the declaration equable extract doesn’t product. my confessor neglect you to dilution not true observation from the period.
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.Read more
Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.Read more
Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.Read more
Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.Read more
By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.Read more