FUN 2 EO: 1.3 - Radiation Protection Tech.

FUN 2 EO: 1.3

1 / 15

How is Kr-85 produced?

Kr88→ Rb88 + β- + γ

Kr85→ Rb85 + β- + γ

16O(p,α)13N Water molecule

Xe135→ Cs135 + β- + γ

2 / 15

How is 239Pu formed from 238U?

Through the emission of gamma radiation

Neutron capture followed by several sequential β- decays

Direct neutron capture without decay

Via fusion reactions

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

They emit harmful gamma rays

They are often alpha emitters

They act as catalysts for further reactions

They undergo spontaneous fission

4 / 15

How is the radionuclide N-16 produced?

From impurities in reactor coolant

From fission reactions

From transuranics in fuel

From the activation of water molecule

5 / 15

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

Fission of heavy nuclei

Trace impurities in the reactor coolant

Radiological decay of another nuclide

Activation of water molecule

6 / 15

What is one main reason CRUD is undesirable?

Generates excess heat

Reduces efficiency of the reactor

Acts as a catalyst for further reactions

Increases general radiation levels

7 / 15

What does CRUD refer to?

Products formed after fission reactions

Deposits of radioactive materials on core surfaces

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

Impurities in the reactor coolant system

8 / 15

What is the production reaction for radionuclide F-18?

17O(n,p)17N Water molecule

16O(n,p)16N Water molecule

18O(p,n)18F Water molecule

16O(p,α)13N Water molecule

9 / 15

The radionuclide N-13 is produced from which source?

Lithium addition for pH control

Air dissolved in water

Impurity in Water

Activation of water molecule

10 / 15

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

Fe-59

Co-58

Mn-54

Cr-51

11 / 15

What does Transuranic refer to?

Any element with an atomic number greater than that of uranium

Any element that undergoes fission in the reactor

Elements that capture neutrons and emit alpha radiation

Elements that are naturally present in the reactor coolant

12 / 15

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

58Ni(nth, p)58Co

59 Co (nth, γ )60Co

59 Co (nth, p)60Co

60Co (nth, γ )61Co

13 / 15

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

H-3

Co-58

Na-24

Ar-41

14 / 15

How is the radionuclide F-18 formed?

As a fission product

As a trace impurity in the reactor coolant

From the activation of water molecule

From neutron capture reactions of 238U

15 / 15

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

Water molecule

Lithium addition for pH control

Impurity in Water

Air dissolved in water

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