How long should a sealed radioactive source be exposed during a school demonstration?

20 mins maximum keeping exposure as low as reasonably practicable

Which type of ionising radiation can be stopped most effectively by a few centimetres of air or a single sheet of paper?

Alpha radiation, due to its high ionising potential and low penetration

If an isotrak source is dropped a long distance, what should be the first response?

Remove source from use, check drop area with GM tube, inform the RPS

Before using radioactive materials in a lesson, what must a teacher consult to ensure safe and legal practice?

CLEAPSS guidance, source risk assessments and contingencies document

Which of the following actions would NOT meet good practice when using radioactive sources in lessons?

Allowing a KS4 student to briefly handle a source under close supervision

What is the safest and most compliant way to store radioactive sources when they are not in use?

In a lead-lined container, labelled and locked in a designated location

Who is formally responsible for ensuring radioactive sources are used in accordance with national safety regulations?

The head of science and the Radiation Protection Supervisor (RPS)

In the event of a fire alarm, what procedure should you follow if a radioactive source is in use?

In its container, store in nominated cupboard, inform Fire Safety Officer

What is the main reason for using tongs and gloves when handling radioactive sources during a demonstration?

To prevent direct contact and reduce exposure by increasing distance

Why is it important to keep a log of all radioactive source use in school?

To maintain accountability and detect misuse or loss

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Radiation Safety Quiz

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Questions 10

Answers

1
How long should a sealed radioactive source be exposed during a school demonstration?
Until a clear reading is obtained from the detector
No longer than 30 mins per class session
As long as the RPS is present in the room
20 mins maximum keeping exposure as low as reasonably practicable
2
Which type of ionising radiation can be stopped most effectively by a few centimetres of air or a single sheet of paper?
Neutron radiation, due to its neutrality
Beta radiation, due to its low mass
Gamma radiation, due to its lack of charge
Alpha radiation, due to its high ionising potential and low penetration
3
If an isotrak source is dropped a long distance, what should be the first response?
Check for damage yourself and then ask students to leave the room
Collect the source immediately with tongs and continue the lesson
Report the incident at the next department meeting
Remove source from use, check drop area with GM tube, inform the RPS
4
Before using radioactive materials in a lesson, what must a teacher consult to ensure safe and legal practice?
CLEAPSS guidance, source risk assessments and contingencies document
National curriculum objectives for physics
The exam board specification for assessment weightings
The school’s data protection and privacy policy
5
Which of the following actions would NOT meet good practice when using radioactive sources in lessons?
Using a Geiger counter to monitor source strength
Allowing a KS4 student to briefly handle a source under close supervision
Ensuring that sources point away from students during demonstrations
Wearing disposable gloves and using tongs
6
What is the safest and most compliant way to store radioactive sources when they are not in use?
In an opaque plastic box labelled “Hazardous – Do Not Touch”
In a lead-lined container, labelled and locked in a designated location
In the chemical storeroom, away from flammable substances
Locked in a secure drawer inside the science prep room
7
Who is formally responsible for ensuring radioactive sources are used in accordance with national safety regulations?
The head of science and the Radiation Protection Supervisor (RPS)
The classroom teacher delivering the lesson
The awarding body responsible for exams
School site team
8
In the event of a fire alarm, what procedure should you follow if a radioactive source is in use?
Secure source in its storage container if time allows, then evacuate.
In its container, store in nominated cupboard, inform Fire Safety Officer
Carry the source out with you to keep it safe.
Evacuate immediately, notify the RPS
9
What is the main reason for using tongs and gloves when handling radioactive sources during a demonstration?
To avoid contamination from student handling
To prevent direct contact and reduce exposure by increasing distance
To improve manual precision during demonstrations
To comply with lab hygiene protocols
10
Why is it important to keep a log of all radioactive source use in school?
To meet insurance policy requirements
To comply with data protection laws
To maintain accountability and detect misuse or loss
To track student engagement

Radiation Safety Quiz Flashcards | StudBud