The first clue that a person has been exposed to radiation is a change in blood count. Why?
Q: What is radiation dose unit? What is the value of 1 rad?
A: The units used to measure radiation dose include rad, Gray, rem or roentgen, Sievert. Equivalent…
Q: Are some types of cancer more sensitive to radiation than others? If so, what makes them more…
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Q: High frequency, very short wavelength Gamma Rays are used to treat some types of cancer. Describe…
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Q: Do humans receive more radiation from artificial or from natural sources of radiation?
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Q: What happens when beta radiations are passed through amagnetic field?
A: When beta radiations are passed through a magnetic field they will get deflected by the magnetic…
Q: Give three (3) examples of uses of Radioactivity (for example, in medicine, agriculture industry,…
A: Objective: To determine the three examples of uses of radioactivity.
Q: A batch of I-125 seeds is ordered so that the activity will be 0.48 mCi/seed on the day of the…
A: activity (A) = 0.48 mCi t = 5 days half life of I-125 = 60 days
Q: Shielding needed for alpha radiation Shielding needed for beta radiation Shielding needed for gamma…
A: Alpha particle is helium nucleus hence a heavy particle, and it has a very short range. Alpha…
Q: Why breeder reactors are more hazardous than conventional reactors?
A: Breeder reactors are simply reactors which produce more fuel than they consume. For example Uranium…
Q: A 85.0-kg person is exposed to 389 rad of radiation. How many joules did this person absorb?
A: Given, Exposed radiation= 389 rad 1J/kg = 100 rad Mass (M)=85 kg Total energy absorbed (T.E)=? We…
Q: A friend produces a Geiger counter to check the local normal background radiation. It clicks…
A: A friend produces a Geiger counter to check the local normal background radiation.
Q: A Geiger counter registerss a count rate of 6,800 counts per minute from a sample of a radioisotope.…
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Q: What characteristics of a material will make it a better absorber of gamma rays?
A: The characteristics of material that will make it a good gamma absorber is high density and high…
Q: It’s possible that a bone tumor will not show up on an x-ray image but will show up in a gamma scan.…
A: Bone tumor
Q: Radiotherapy is more likely to be used to treat cancer in elderly patients than in young ones.…
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Q: Compare a low dose of radiation to a human with a low dose of radiation used in food treatment.
A: When a low intensity radiation is given to a human body, then it only detects the inner part of body…
Q: Calculate the effects of radiation dosage in sieverts for a 55-kg person who is exposed to 3.3 x…
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Q: True or false ? The dose from cosmic radiation is higher at the mountains than the sea level.
A: Yes, the dose from cosmic radiation is higher at the mountains than the sea level, given statement…
Q: How much ionising radiation is needed to get cancer? Explain how it will give you cancer?
A: Ionising radiation, such as gamma rays, X-rays and radioactive particles can cause cancer by…
Q: Calculate the radiation dosage and grace for a 57-kg person Who is exposed for 8.0 as to a 3.0 Ci…
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Q: How is it possible for a positively charged nucleus to release a negatively charged beta particle?
A: Required : How is it possible for a positively charged nucleus to release a negatively charged beta…
Q: A patient has 10% as much radioactivity as they had 4 days ago when a radioisotope was administered.…
A: The amount of radioactivity remaining after a given time: Nt=N0×12n where Nt = activity at time t…
Q: Which is a factor in determining the amount of radiation exposure a person takes from a source?
A: The human gets exposure to the radiation by the radiation emitted by the nuclear power generation…
Q: Assume that a full CT scan of the spinal cord (columna vertebralis) of a patient delivers an…
A: The objective of this question is to calculate the total number of X-rays necessary to deliver a…
Q: Which of the following cells has the highest radio-sensitivity O None of the given options O Lung O…
A: cells has high radio sensitivity
Q: Question 8 a) Explain what is meant by “somatic effects” of radiation exposure. b) Explain how the…
A: a) Somatic effects of radiation exposure refer to the biological changes that occur in the body of…
Q: What happens when gamma radiations are passed through a magnetic field?
A: Gamma particles will not get affected by the electric field, because, it is charge-less particles.
Q: What is the source of the most radiation for an average person?
A: Radiations are the transfer of the energy in the form of the electromagnetic wave through any medium…
Q: The typical free path of alpha-particle from ionizing radiation in human body is
A: Alpha particles are positively charged and made up of two protons and two neutrons from the atom’s…
Q: The diagram below shows how far apart two beams of radiation must be placed so that they will not…
A: The given diagram shows how far apart two beams of radiation must be placed so that they will not…
Q: Why is radiation therapy used in treating cancer, when it can also cause cancer?
A: Radiation causes cancer but the effect of radiation on a patient of cancer is different. Radiation…
Q: 9. A 80-kg man is exposed to a beam of alpha particles, each of which imparts an energy of 100 MeV…
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Q: Distinguish between the effects radiation can have on a general body cell (somatic) and cells that…
A: Radiation can have different effects on total body cells (somatic cells) and cells that make up the…
Q: You suspect that a patient’s arm is broken. What type of radiation might help you find out
A: To explain : The radiation used to check if patient's arm is broken
Q: The radiation effects which can be passed on to the offspring or to a later generation of a person…
A: Different radiations carry different energy and momentum and thus the effects of different…
The first clue that a person has been exposed to radiation is a change in blood count. Why?
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