Show:
Radiation Theory
Health Effects
Protection Measures
SCC Bldg 66 Radiation Safety Program
Radiation Safety Potpourri
100
Alpha radiation presents an external hazard. True or False?
Answer: False - Alpha particles will only travel a few cm in air and cannot penetrate skin. However, if they are inhaled or enter the body they present an internal hazard.
100

Radiation is ___________ and may create free radicals which can damage DNA.

Answer: Ionizing

100
The ALARA concept means
"As Low As Reasonably Achievable"
100

Who is the RSO for Building 66?

Alex Kurimsky is the Bldg 66 RSO.

100
A Becquerel is defined as ___________________.
Answer: one disintegration per second
200
What is Bremsstrahlung Radiation and how can it be produced?
Answer: Brem is secondary x-ray radiation. It can be produced by causing a fast moving electron (Beta particle) to come to a stop or change directions. This can happen when P-32 is shielded with lead (dense material) rather than glass or Plexiglas.
200

A fetus is most susceptible to the damaging effects of radiation in _______ .

Answer: the first trimester

200
Three measures that should be taken to prevent external exposures to radiation are: __________, __________, and ____________.
Answer: time, distance and shielding
200

_____________ _____________ are staff who are approved to use radiation producing equipment.

Answer: Trained operators/authorized users/trained workers

200

The total effective dose equivalent is the sum of internal and external radiation exposure. True or false.

True.
300

Gamma rays are highly penetrating radiation. True or False.

Answer: True

300
Define radiation dose rate.
Answer: the amount of radiation an individual is exposed to per unit of time
300
When working with P-32, Plexiglas shielding should be used.
Answer: True - All stocks, sub-stocks, work areas, waste containers, etc. must be shielded.
300

Radiation Safety Training has two parts: Classroom and Equipment-Specific. Who is responsible for providing the Equipment-Specific training?

Answer: The trained, qualified equipment operator.

300

It's good practice to enter an x-ray vault with an uncalibrated survey meter in hand.

Answer: False

400

In a linear accelerator, this can happen at energies above 6 MeV.

Can neutrons be produced by a high energy linear accelerator produce neutrons?

400

This dose model says any amount of radiation can cause a health effect and is the basis for all radiation protection regulations.

What is the Linear No-Threshold hypothesis

400

A lead apron will protect against all types and energies of radiation.

Answer: False. Lead aprons are effective protection for diagnostic x-rays, only.

400

The purchase or relocation of radiation producing equipment does not require RSO approval. True or False?

Answer: False - All purchases, acquisitions, or relocations need to be approved by the RSO.

400

Personal radiation exposure is measured by using _______

Answer: A whole body dosimeter

500
What is Radiation?
Answer: Radiation is energy in motion in the form of waves or streams of particles.
500

There is a delay between exposure to the radiation and the onset of cancer. This delay is known as the __________ __________.

Answer: latency period - e.g. For leukemia, it is about 8 years. For other cancers, it can be much longer.

500
What are the two principle methods of radiation detection? 1) ______ method – using portable radiation survey meters 2) ______ method – wipes tests using filter paper, swabs and a scintillation or gamma counter
DIRECT method – using portable radiation survey meters INDIRECT method – wipes tests using filter paper, swabs and a scintillation or gamma counter
500

The NYSDOH requires these components of a Radiation Safety Program to be in place.

Answer: What are 

1)a designated Radiation Protection Officer, 

2) written Radiation Safety Policy and Procedures

500

The Bldg 66 24-hour emergency number is ________?

Answer: 518-