Models 375-31H Area Monitor with Neutron Detector
Section 2
Ludlum Measurements, Inc.
Page 2-1
January 2021
Getting Started
he Model 375-31H5 Area Monitor is designed for ease of use. This
section of the manual is designed to help the first-time user get
started. Initial power-up and basic features of the Model 375-31H
will be discussed in this section. Other sections of the manual
provide more detailed information.
Neutron Detector
The Model 375-31H comes equipped with a neutron detector. The neutron
detector is designed to detect thermal and fast neutrons (0.025 eV to
approximately 12 MeV). Neutrons are detected indirectly through nuclear
reactions, which result in energetically charged particles. It utlizies this
reaction in the form of helium-3 (3He), which fills the gas proportional tube
on the detector.
Gamma rejection is very good, resulting in less than 10 cpm in a 10 R/hr
field.
Note:
The detector does not contain any consumable materials.
Note:
If the detector is used in a manner not intended by the
manufacturer, the detector may not function properly.
Section
2
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