Terminal Learning Objective
Upon completion of this lesson, you will
be able to perform radiological
monitoring and survey operations
including computing transmission and
correlation factors, recording data on DA
Form 1971-R or 1971-1-R, and preparing
and submitting NBC 4 Reports.
B-6
VG 1
Learning Objective A
This learning objective will address how to
supervise radiation monitoring.
B-6
VG 2
Area Radiological
Monitoring
 Periodic monitoring consists of frequent checks
of the unit area for radiation.
 Continuous monitoring is the surveillance for
radiation in the unit area or position. Aroundthe-clock check for radiation in the area.
B-6
VG 3
Radiation Monitoring
Techniques
 Direct monitoring is done outside and is the
simplest and most precise of the techniques.
 Indirect monitoring is done inside shelters or
vehicles. Allows unit to measure radiation
levels and still keep exposure to a minimum.
B-6
VG 4
Radiation Monitoring
Reports
 Automatic reports - All units in the
contaminated area submit certain monitoring
reports automatically. These provide minimum
essential information for warning, hazard
evaluation, and survey planning.
 Directed reports - Special units may be
required or directed to submit additional
reports.
B-6
VG 5
Automatic Reports
 Initial reports - First report sent when the unit
monitor records an outside dose rate reading of
1 or more cGyph.
 Peak reports - Sent because radiation levels
will rise, peak, and then decrease.
 Special reports - These reports invite command
attention to areas or conditions of serious
concern.
B-6
VG 6
Directed Reports
 A Series report consists of dose rate readings
taken at the same location at 30-minute
intervals for 2 ½ hours followed by hourly
reports.
 A Summary report shows the radiation
distribution throughout a unit’s area of
responsibility.
 The Verification report is a unit’s response to a
direct request from the NBCC, if data is lacking
from a specified location near or in the unit
area.
B-6
VG 7
Learning Objective B
This learning objective will
address how to prepare and
submit NBC 4 Nuclear Reports.
B-6
VG 8
NBC 4 Nuclear Reports
When any unit detects NBC hazards through
monitoring, survey or reconnaissance, this
information is reported using an NBC 4 Report.
B-6
VG 9
Prepare an NBC 4 Nuclear
Report
NBC 4 Radiation Dose Rate Measurements or Chemical/Biological Areas of Contamination
For use of this form, see FM 3-3; the proponent agency is TRADOC.
From
To
Precedence
IMMEDIATE
Security Classification
Date-Time (Zulu, Local, or Letter Time Zone)
Type of Report
Category of Report
Nuclear
Chemical
Initial
Follow-Up
Biological
Instructions
1. Line items QUEBEC, ROMEO, and SIERRA may be repeated as often as necessary.
2. Line items HOTEL, QUEBEC, ROMEO, and SIERRA are mandatory for NBC 4 reports.
3. Line items ALPHA and KILO are aotional for NBC 4 reports.
B-6
VG 10
Prepare an NBC 4 Nuclear
Report (cont.)
Section II--Nuclear Only
Description
Strike Serial Number
(assigned by NBCE)
Crater Diameter
Line
Data
ALPHA
KILO
Location of Reading (UTM)
QUEBEC
Dose rate (cGyph) (the words “initial,” “Peak,”
“Increasing,” or “Decreasing” may be added
ROMEO
Date and Time of reading
(ZULU, local, or letter zone)
SIERRA
Location of Reading (UTM)
QUEBEC
Dose Rate (cGyph) (the words “Initial,” “Peak,”
“Increasing,” or “Decreasing” may be added)
ROMEO
Date and Time of reading
(ZULU, local, or letter zone)
SIERRA
Location of Reading (UTM)
QUEBEC
Dose Rate (cGyph) (the words “Initial,” “Peak,”
“Increasing,” or “Decreasing” may be added)
ROMEO
Date and Time of reading
(ZULU, local, or letter zone)
SIERRA
Remarks
ZULU BRAVO
REVERSE, DA FORM 1971-10-R, OCT 92
B-6
VG 11
Learning Objective C
This learning objective will address
how to compute correlation factors.
B-6
VG 12
Calculate Correlation
Factors (CF)
 During radiological monitoring, take shielded
readings.
—Take unshielded readings within three
minutes of the shielded readings.
—Record this information on DA Form
1971-R.
 Use the following formula to compute the
correlation factor (CF):
OD / ID =CF
 Round the answer to the nearest hundredth.
B-6
VG 13
Learning Objective D
This learning objective will
address how to record data on
DA Form 1971-R or 1971-1-R.
B-6
VG 14
Purpose of
DA Form 1971-R or 1971-1-R
The DA Form 1971-R is used to record
monitoring data at the unit level. It is also
used as a copy sheet for monitoring data
passed from one headquarters to another.
B-6
VG 15
DA Form 1971-R
B-6
VG 16