AN EXAMPLE OF A NON-STOCHASTIC (DETERMINISTIC, TISSUE REACTONS) EFFECT IS:

The use of added filtration causes the primary x-ray beam to be modified in one or more of the following ways (all other factors unchanged): 1 Increase in the peak energy of the beam2 Increase in the average energy of the beam3 Increase in the number of photons reaching the patient

Chromosomal damage is most readilly observed during:

The Luxel® radiation monitoring device is able to indicate the radiation detected by a process called:

A radioactive substance with a half-life of 4.8 hours contains 20 millicuries of activity. How many millicuries will remain after two days?

The following doses were received by an employee at a reactor facility (the numbers in parentheses are quality factors): .02 GRAY alpha (20), .01 GRAY beta (1), .03 GRAY x-ray (1)What is the employee’s total dose equivalent?

DNA IS COMPOSED OF MANY MOLECULES STRUNG TOGETHER IN A VERY LONG CHAIN. THE “DOUBLE-HELIX” PORTION OF THIS CHAIN (THE RAILS) IS MADE OF: 1 SUGAR-PHOSPHATE MOLECULES 2 NITROGENOUS BASES 3 PURINES AND PYRIMIDINES

Brachytherapy involves (or has involved) the use of one or more of the following: 1 Linear accelerator2 Radioactive seed implantation3 Cobalt-60 therapy unit

Based on recommendations contained in NCRP Report =116, the lifetime dose accumulation for a 30 year-old radiation worker should not have exceeded:

The distance between the fluoroscopic tube and the tabletop (source-to-tabletop distance) on fixed (stationary) systems shall not be: