Radiation Detectors
CIRCUITRY AND CIRCUIT ELEMENTS
CIRCUITRY AND CIRCUIT ELEMENTS
Understanding how the reactor power monitoring detection equipment works
requires a working knowledge of basic terminology.
EO 3.1
DEFINE the following terms:
a.
Signal-to-noise ratio
b.
Discriminator
c.
Analog
d.
Logarithm
e.
Period
f.
Decades per minute (DPM)
g.
Scalar
EO 3.2
LIST the type of detector used in each of the following
nuclear instruments:
a.
Source range
b.
Intermediate range
c.
Power range
Terminology
Understanding how the reactor power monitoring detection equipment works requires a working
knowledge of basic terminology.
Signal-to-Noise Ratio
Signal-to-noise ratio is the ratio of the electrical output signal to the electrical noise
generated in the cable run or in the instrumentation.
Discriminator
Discrimination in radiation detection circuits refers to the process of distinguishing
between different types of radiation on the basis of pulse height. A discriminator circuit
selects the minimum or maximum pulse height that is to be counted.
Rev. 0
Page 55
IC-06
