What was the initial uptake

Assignment Help Science

Reference no: EM131864783

Internal Dosimetry

1. Starting with the retention function for tritium defined in ICRP 30, prove that as t → ∞ ,
the number of nuclear transitions reduces to [A₀/λ].

2. The biological half-life of tritium is 10 days. A worker has 1 MBq of tritium activity left in his body after an uptake seven days ago.

(a) What was the initial uptake?

(b) Use the initial uptake to calculate how many nuclear transitions occurred in the body during those seven days.

3. For a fresh ⁹⁰Sr source, calculate (analytically) the time required to build-in the maximum activity of ⁹⁰Y. Graph both decays as a function of time. Is this secular or transient equilibrium? Explain the difference between the two.

4. Given a 3-compartment first-order kinetic model, and ending with 1015 atoms of the 2nd progeny (3^rd compartment) after 100 hours, use Bateman equations to predict the number of atoms in the 1st compartment at time zero.

The half-life of transfer from the 1st to 2^nd compartment is 15 hours, the half-life of transfer from the 2^nd to 3^rd compartment is 30 hours, and the half-life of transfer out of the 3^rdcompartment is 25 hours.

5. Construct a STELLA Model to execute the kinetics of problem #4. Run the problem for 100 hours and compare the STELLA results to your calculated results.

Reference no: EM131864783

Questions Cloud

Calculate the accounts receivable and inventory turnover : The following selected company information was reported: Account recievable begining of the year $170,000.00, Calculate the Accounts receivable turnover

How steve jobs did or did not foster growth of leaders : Describe how Steve Jobs did or did not foster the growth of other leaders within his organization (Aple). There is no chapter or case detail for the question.

Create an appropriate framework and standard for the network : Create an appropriate framework and standards for the planned network. Write a detailed setup of network devices only for a LAN.

How is the consistency of wood guaranteed : How does Steinway insure the beauty and quality of the wood finish of its pianos? How is the consistency of wood guaranteed?

What was the initial uptake : The biological half-life of tritium is 10 days. A worker has 1 MBq of tritium activity left in his body after an uptake seven days ago.

Develop a menu driven console java program todemonstrate : For this assignment, you are required to develop a Menu Driven Console Java Program todemonstrate you can use Java constructs including input/output.

Explain the term functional strategy : Describe the term functional strategy. Are functional strategies interdependent or can they be formulated independently of other functions?

Attraction of foreign investments to australian investors : Explain how low Australian interest rates can affect the tendency of Australia-based MNCs to invest abroad and In general terms, what is the attraction

Determine the present value of the lease payments : Werner Chemical, Inc., leased a protein analyzer on September 30, 2013. Determine the present value of the lease payments at September 30, 2013

User Account

All Pages