Chem 133 Week 6 Quiz complete Actual
set with Questions and correct/verified
Answers
nuclear 92% - ANSWER-What is the most reliable energy source?
coal, natural gas, nuclear, solar, and wind - ANSWER-What are the 5 types of energy source?
1. Excitation of electrons
2. Ionization of atoms or molecules
3. Nuclear reactions - ANSWER-Energy loss for passage through matter can happen by:
Radiation, exposure, absorbed dose, dose equivalent - ANSWER-What is R-E-A-D
the amount of ionizing radiation released by a material. The units of measure for radioactivity are the
curie (Ci) and becquerel (Bq). - ANSWER-What is radiation?
describes the amount of radiation traveling through the air. The units for exposure are the roentgen (R)
and coulomb/kilogram (C/kg). - ANSWER-What is exposure?
describes the amount of radiation absorbed by an object or person. The units for absorbed dose are the
radiation absorbed dose (rad) and gray (Gy). - ANSWER-What is Absorbed dose?
or effective dose, combines the amount of radiation & the medical effects of that type of radiation. Units
for dose equivalent are the roentgen equivalent man (rem) and sievert (Sv), and biological dose
equivalents are commonly measured in 1/1000th of a rem (known as a millirem or mrem) - ANSWER-
What is Dose equivalent?
Your dose rate will decrease by 1𝑟𝑟2, which means that if you move further away from the source, the
effective dose will decrease exponentially. - ANSWER-Will your dose rate decrease linear or exponential
when you move further away from the point source?
solve - ANSWER-You are working for a company that produces radioisotopes and you were asked to carry
500 g of a 𝐶𝐶𝐶𝐶60 source to a customer. The nuclide produces two gamma rays with an energy of 𝐸𝐸1 =
1.17 𝑀𝑀𝑀𝑀𝑀𝑀 and 𝐸𝐸2 = 1.33 𝑀𝑀𝑀𝑀𝑀𝑀. You are driving for 6 hours and the source is 2 m away
from you contained in a 10 cm lead shielding and a build up factor of 1.2. What would your absorbed
dose be? The density of lead is 11.34 g/cm3. The photon yield is 1.
Coherent (Rayleigh scattering), Photoelectric effect, Compton scattering, and Pair production - ANSWER-
What are the different interactions of photons (gamma rays) with atoms?
elastic scattering of the photon with an electron. Photon energy is not changed but the direction of the
particle. - ANSWER-What is Coherent (Rayleigh scattering)?
Photon completely transfers energy to an electron which gets ejected from the atom. The energy of that
electron is smaller than the energy of the absorbed photon because it needed to overcome the binding
energy from the atom - ANSWER-What is Photoelectric effect?
set with Questions and correct/verified
Answers
nuclear 92% - ANSWER-What is the most reliable energy source?
coal, natural gas, nuclear, solar, and wind - ANSWER-What are the 5 types of energy source?
1. Excitation of electrons
2. Ionization of atoms or molecules
3. Nuclear reactions - ANSWER-Energy loss for passage through matter can happen by:
Radiation, exposure, absorbed dose, dose equivalent - ANSWER-What is R-E-A-D
the amount of ionizing radiation released by a material. The units of measure for radioactivity are the
curie (Ci) and becquerel (Bq). - ANSWER-What is radiation?
describes the amount of radiation traveling through the air. The units for exposure are the roentgen (R)
and coulomb/kilogram (C/kg). - ANSWER-What is exposure?
describes the amount of radiation absorbed by an object or person. The units for absorbed dose are the
radiation absorbed dose (rad) and gray (Gy). - ANSWER-What is Absorbed dose?
or effective dose, combines the amount of radiation & the medical effects of that type of radiation. Units
for dose equivalent are the roentgen equivalent man (rem) and sievert (Sv), and biological dose
equivalents are commonly measured in 1/1000th of a rem (known as a millirem or mrem) - ANSWER-
What is Dose equivalent?
Your dose rate will decrease by 1𝑟𝑟2, which means that if you move further away from the source, the
effective dose will decrease exponentially. - ANSWER-Will your dose rate decrease linear or exponential
when you move further away from the point source?
solve - ANSWER-You are working for a company that produces radioisotopes and you were asked to carry
500 g of a 𝐶𝐶𝐶𝐶60 source to a customer. The nuclide produces two gamma rays with an energy of 𝐸𝐸1 =
1.17 𝑀𝑀𝑀𝑀𝑀𝑀 and 𝐸𝐸2 = 1.33 𝑀𝑀𝑀𝑀𝑀𝑀. You are driving for 6 hours and the source is 2 m away
from you contained in a 10 cm lead shielding and a build up factor of 1.2. What would your absorbed
dose be? The density of lead is 11.34 g/cm3. The photon yield is 1.
Coherent (Rayleigh scattering), Photoelectric effect, Compton scattering, and Pair production - ANSWER-
What are the different interactions of photons (gamma rays) with atoms?
elastic scattering of the photon with an electron. Photon energy is not changed but the direction of the
particle. - ANSWER-What is Coherent (Rayleigh scattering)?
Photon completely transfers energy to an electron which gets ejected from the atom. The energy of that
electron is smaller than the energy of the absorbed photon because it needed to overcome the binding
energy from the atom - ANSWER-What is Photoelectric effect?
