Appendix J
RS FORM 300
UNIVERSITY OF WISCONSIN - MILWAUKEE
DEPARTMENT OF UNIVERSITY SAFETY AND ASSURANCES
RADIATION SAFETY PROGRAM
RADIATION SAFETY EXAM
NAME:
AUTHORIZED USER:
SOCIAL SECURITY #:
BIRTH DATE:
1.
The three components of every atom are
.
2.
The special unit used to measure activity is the
3.7 x 1010 disintegrations per second.
3.
After two half-lifes of any given radionuclide, what fraction of the original activity will
remain?
4.
The special unit of absorbed dose (energy deposited per gram of tissue) is the
.
5.
The three products of radioactive decay are
and
. Of these products
penetrating and
,
, and
which is equal to
,
are generally the most
are generally the least penetrating.
6.
One bequerel (l Bq) is equivalent to
disintegration per second.
7.
The two classes of radiation effects on the human body are
and
.
effects can be passed on to future generations
effects only effect the irradiated person.
and
8.
List four low energy beta-emitters (<200 keV) which are not external radiation hazards:
,
,
,
9.
In general, persons working with the above low energy beta-emitters (do/do not)
need to wear a film badge.
10.
A common radiation detection device used to detect radiation and/or monitor for
contamination is a
.
11.
During what part of the pregnancy is the fetus the most radiosensitive?
Prenatal monitoring of the declared pregnant worker is designed to keep the fetal radiation
exposure below
mrem.
76
.
12.
13.
14.
The efficiency of a liquid scintillation counter (LSC) is the measured ratio of
to
.
List three radionuclides which are external hazards if improperly shielded:
,
,
.
Radiation exposure can be reduced by increasing or decreasing what three factors?
(specify the increase or decrease)
,
.
15.
Moving twice as far from a radioactive source reduces the dose by a factor of
.
16.
Radiation exposure from internal doses to radioactive materials is restricted by defined
.
17.
The maximum whole body exposure a radiation worker may receive in a year is
mrem. NRC regulations require external exposure monitoring if a
worker is likely to receive
of that limit.
18.
Lucite is the best material for shielding high energy
19.
1500 µCi (microcuries) =
20.
In general, objects placed near a sealed source of radioactivity (will/will not)
become radioactive.
21.
A wipe test is a survey for radioactive
22.
The three approved methods for disposing of radioactive waste materials are:
,
.
and
,
emitters.
mCi (millicuries).
.
23.
A laboratory area monitoring survey must be conducted at the end of each
of work with radioactive materials.
24.
Whom would you notify in the event of a radiation emergency?
.
25.
In what part of a radionuclide laboratory may food and/or beverages be consumed, stored or
prepared?
I have read the handbook "Radiation Safety for Radiation Workers" and have completed this
examination.
Signed:
Date:
77
,