1.
Physics
The minimum amount of energy needed to overcome the forces holding the atom together is called:
2.
Quantities and Units
Which of the following is its effective half-life if an isotope has a physical half-life of 18 hours and biological half-life of 10 hours?
3.
Radiation Safety
A radioactive source produces exposure of 30 millirem per hour (mR/h) at 2-m distance. If the distance is increased to 5-m what is the new exposure rate?
4.
Quantities and Units
If 300 uCi of I-123 is used for an adult dose, what is the pediatric dose according to Young’s formula for a child who is 14 years old and weighs 30 kg?
5.
Quality Control
The maximum permissible limit of Al+3 in Tc-99m eluate is set by?
6.
Physics
An alpha particle is identical to the nucleus of a helium atom. Alpha particles:
7.
Radiation Safety
Which of the following is the most sensitive tissue to radiation?
8.
Radiation Safety
The survey meter, also known as the Geiger-Mueller detector or Geiger counter, is a radiation detector filled with:
9.
Physics
Which of the following best defines isotopes of an element?
10.
Quality Control
Calibration, sensitivity/constancy, efficiency, chi-square, and energy resolution are quality control procedures performed to ensure proper operation of the:
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