FUN 2 EO: 1.3 - Radiation Protection Tech.

FUN 2 EO: 1.3

1 / 15

How is Kr-85 produced?

Xe135→ Cs135 + β- + γ

Kr85→ Rb85 + β- + γ

16O(p,α)13N Water molecule

Kr88→ Rb88 + β- + γ

2 / 15

What is the production reaction for radionuclide F-18?

18O(p,n)18F Water molecule

16O(n,p)16N Water molecule

17O(n,p)17N Water molecule

16O(p,α)13N Water molecule

3 / 15

What is a common source for the production of the radionuclide N-17?

Radiological decay of another nuclide

Activation of water molecule

Trace impurities in the reactor coolant

Fission of heavy nuclei

4 / 15

Which radionuclide is produced from the shorthand production reaction 50Cr(nth, γ)51Cr?

Mn-54

Fe-59

Co-58

Cr-51

5 / 15

What is one main reason CRUD is undesirable?

Increases general radiation levels

Reduces efficiency of the reactor

Acts as a catalyst for further reactions

Generates excess heat

6 / 15

Which radionuclide is produced through the shorthand reaction 23Na(n,γ)24Na?

Na-24

Ar-41

Co-58

H-3

7 / 15

What does CRUD refer to?

Products formed after fission reactions

Deposits of radioactive materials on core surfaces

Impurities in the reactor coolant system

Metal oxides formed due to oxidation or corrosion of metallic surfaces in contact with the coolant

8 / 15

How is the radionuclide N-16 produced?

From the activation of water molecule

From transuranics in fuel

From fission reactions

From impurities in reactor coolant

9 / 15

What does Transuranic refer to?

Elements that are naturally present in the reactor coolant

Any element that undergoes fission in the reactor

Any element with an atomic number greater than that of uranium

Elements that capture neutrons and emit alpha radiation

10 / 15

What is the origin of Radionuclide H-3 production reaction?

Lithium addition for pH control

Water molecule

Air dissolved in water

Impurity in Water

11 / 15

The radionuclide N-13 is produced from which source?

Lithium addition for pH control

Air dissolved in water

Activation of water molecule

Impurity in Water

12 / 15

How is the radionuclide F-18 formed?

As a fission product

From neutron capture reactions of 238U

From the activation of water molecule

As a trace impurity in the reactor coolant

13 / 15

Why can Transuranics have a significant impact on the radiological controls required?

They emit harmful gamma rays

They undergo spontaneous fission

They act as catalysts for further reactions

They are often alpha emitters

14 / 15

Which production reaction correctly represents how Co-60 is produced?

59 Co (nth, γ )60Co

58Ni(nth, p)58Co

60Co (nth, γ )61Co

59 Co (nth, p)60Co

15 / 15

How is 239Pu formed from 238U?

Through the emission of gamma radiation

Via fusion reactions

Neutron capture followed by several sequential β- decays

Direct neutron capture without decay

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