A biological tissue is irradiated with neutrons. The biologically equivalent dose of the neutrons is 2.6 × 102 rem. Determine the RBE of the neutrons if the absorbed dose is 130 rd.

A) 0.5 B) 2.0 C) 4.0 D) 5.0 E) 25 A) 0.5 B) 2.0 C) 4.0 D) 5.0 E) 25

A physicist wishes to measure the exposure of a beam of gamma rays. The beam is passed through 2.00 × 10-2 kg of dry air at STP. The beam produces positive ions in the air which have a total charge of 3.87 × 10-6 C. What is the exposure (in roentgens) of the beam?

A) 7.74 × 10-8 R B) 1.94 × 10-4 R C) 3.25 × 10-2 R D) 0.750 R E) 1.25 R A) 7.74 × 10-8 R B) 1.94 × 10-4 R C) 3.25 × 10-2 R D) 0.750 R E) 1.25 R

A radiologist absorbs 4.0 × 10-5 J of radiation. Determine the absorbed dose if his mass is 74.0 kg.

A) 3.8 × 10-7 Gy B) 6.3 × 10-7 Gy C) 5.4 × 10-7 Gy D) 4.6 × 10-7 Gy E) 5.1 × 10-7 Gy A) 3.8 × 10-7 Gy B) 6.3 × 10-7 Gy C) 5.4 × 10-7 Gy D) 4.6 × 10-7 Gy E) 5.1 × 10-7 Gy

Exam 32: Ionizing Radiation, Nuclear Energy, and Elementary Particles

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How many kilowatt . hours of energy are released from 25 g of deuterium fuel in the fusion reaction: where the masses are = 2.014 102 u and = 4.002 603 u. Notes: Ignore the energy carried off by the gamma ray. Conversion factors: 1 kWh = 3.600 × 10⁶ J; 1 eV = 1.602 × 10^-¹⁹ J.

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Question 21

Nucleus A has Z protons and N neutrons. Nucleus B has 2Z protons and 2N neutrons. Nucleus A has a smaller binding energy per nucleon than B. Which entry in the table below is correct?

(Multiple Choice)

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Question 22

Which one of the following particles is not composed of quarks?

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Question 23

A biological tissue is irradiated with neutrons. The biologically equivalent dose of the neutrons is 2.6 × 10² rem. Determine the RBE of the neutrons if the absorbed dose is 130 rd.

(Multiple Choice)

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Question 24

Which source of radiation contributes most to the average biological equivalent dose received by a United States resident?

(Multiple Choice)

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Question 25

What absorbed dose of protons with an RBE of 17 will cause the same damage to biological tissue as a 200 rd dose of neutrons that have an RBE of 2.6?

(Multiple Choice)

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Question 26

Complete the following statement: The average biologically equivalent dose of radiation from consumer products received by a resident of the United States is about

(Multiple Choice)

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Question 27

What is the antiparticle of an electron?

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Question 28

A physicist wishes to measure the exposure of a beam of gamma rays. The beam is passed through 2.00× 10^-²kg of dry air at STP. The beam produces positive ions in the air which have a total charge of 3.87 × 10^-⁶C. What is the exposure (in roentgens) of the beam?

(Multiple Choice)

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Question 29

A radiologist absorbs 4.0 × 10^-⁵ J of radiation. Determine the absorbed dose if his mass is 74.0 kg.

(Multiple Choice)

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Question 30

Consider the nuclear reaction and the masses: = 235.0439 u; = 93.9063 u; n = 1.008 67 u. If 208.66 MeV of energy is released in this reaction, determine the mass of X.

(Multiple Choice)

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Question 31

Determine the amount of energy released in the following reaction: where = 4.002 603 u and = 12.000 000 u.

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Question 32

Astronomers studying the light from calcium atoms located in a galaxy in the constellation Boötes find that the spectral lines are shifted toward the red end of the spectrum. The redshift indicates that the galaxy is moving away at a speed of 3.9 × 10⁶ m/s. What is the distance (in light . years) to the galaxy?

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Question 33

In the induced nuclear reaction, , the reaction produces neon in an excited state, which subsequently decays into a nucleus X and a particle Y. Which one of the following X and Y pairs is not possible?

(Multiple Choice)

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Question 34

Complete the following statement: The term ionizing radiation does not apply to

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Question 35

Determine the atomic number Z and the nucleon number A in the following reaction: .

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Question 36

In the medical diagnostic technique known as positron emission tomography (PET), a positron and an electron annihilate each other and two $\gamma$ -ray photons are emitted. What is the angle between the momentum vectors of the two photons?

(Multiple Choice)

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Question 37

What is the importance of thermal neutrons in nuclear processes?

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Question 38

Which one of the following statements is true concerning the reaction where has a mass of 2.014 u; has a mass of 4.003 u; has a mass of 6.015 u; and 1 u = 931.5 MeV?

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Question 39

Which one of the following statements is the best explanation as to why nuclear fusion is not at present used to generate electric power?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 45

Exam 32: Ionizing Radiation, Nuclear Energy, and Elementary Particles

How many kilowatt . hours of energy are released from 25 g of deuterium fuel in the fusion reaction: where the masses are = 2.014 102 u and = 4.002 603 u. Notes: Ignore the energy carried off by the gamma ray. Conversion factors: 1 kWh = 3.600 × 106 J; 1 eV = 1.602 × 10-19 J.

Nucleus A has Z protons and N neutrons. Nucleus B has 2Z protons and 2N neutrons. Nucleus A has a smaller binding energy per nucleon than B. Which entry in the table below is correct?

Which one of the following particles is not composed of quarks?

A biological tissue is irradiated with neutrons. The biologically equivalent dose of the neutrons is 2.6 × 102 rem. Determine the RBE of the neutrons if the absorbed dose is 130 rd.

Which source of radiation contributes most to the average biological equivalent dose received by a United States resident?

What absorbed dose of protons with an RBE of 17 will cause the same damage to biological tissue as a 200 rd dose of neutrons that have an RBE of 2.6?

Complete the following statement: The average biologically equivalent dose of radiation from consumer products received by a resident of the United States is about

What is the antiparticle of an electron?

A physicist wishes to measure the exposure of a beam of gamma rays. The beam is passed through 2.00 × 10-2 kg of dry air at STP. The beam produces positive ions in the air which have a total charge of 3.87 × 10-6 C. What is the exposure (in roentgens) of the beam?

A radiologist absorbs 4.0 × 10-5 J of radiation. Determine the absorbed dose if his mass is 74.0 kg.

Consider the nuclear reaction and the masses: = 235.0439 u; = 93.9063 u; n = 1.008 67 u. If 208.66 MeV of energy is released in this reaction, determine the mass of X.

Determine the amount of energy released in the following reaction: where = 4.002 603 u and = 12.000 000 u.

In the induced nuclear reaction, , the reaction produces neon in an excited state, which subsequently decays into a nucleus X and a particle Y. Which one of the following X and Y pairs is not possible?

Complete the following statement: The term ionizing radiation does not apply to

Determine the atomic number Z and the nucleon number A in the following reaction: .

In the medical diagnostic technique known as positron emission tomography (PET), a positron and an electron annihilate each other and two γ\gammaγ -ray photons are emitted. What is the angle between the momentum vectors of the two photons?

What is the importance of thermal neutrons in nuclear processes?

Which one of the following statements is true concerning the reaction where has a mass of 2.014 u; has a mass of 4.003 u; has a mass of 6.015 u; and 1 u = 931.5 MeV?

Which one of the following statements is the best explanation as to why nuclear fusion is not at present used to generate electric power?

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How many kilowatt . hours of energy are released from 25 g of deuterium fuel in the fusion reaction: where the masses are = 2.014 102 u and = 4.002 603 u. Notes: Ignore the energy carried off by the gamma ray. Conversion factors: 1 kWh = 3.600 × 10⁶ J; 1 eV = 1.602 × 10^-¹⁹ J.

A biological tissue is irradiated with neutrons. The biologically equivalent dose of the neutrons is 2.6 × 10² rem. Determine the RBE of the neutrons if the absorbed dose is 130 rd.

A physicist wishes to measure the exposure of a beam of gamma rays. The beam is passed through 2.00× 10^-²kg of dry air at STP. The beam produces positive ions in the air which have a total charge of 3.87 × 10^-⁶C. What is the exposure (in roentgens) of the beam?

A radiologist absorbs 4.0 × 10^-⁵ J of radiation. Determine the absorbed dose if his mass is 74.0 kg.

In the medical diagnostic technique known as positron emission tomography (PET), a positron and an electron annihilate each other and two $\gamma$ -ray photons are emitted. What is the angle between the momentum vectors of the two photons?