Welcome
Thank you for purchasing the I™, the latest generation in Spec-
troscopic Personal Radiation Detectors (SPRDs). This manual is designed to
guide you through configuration, operation and maintenance of your new
equipment.
The I™ is designed to monitor radiation and warn you if an
increased radiation level is detected. The I™ is capable of detect-
ing gamma radiation as well as thermal neutrons (optional). In addition to
the features provided by standard PRDs, the I™ also allows you
to qualitatively analyze a detected gamma radiation source by identifying the
isotopes using a template matching algorithm (optional).
The I™ is equipped with two (2) Cadmium-Zinc-Telluride
(CZT) crystals. These detectors are called finder detectors, and they are used
to monitor the gamma dose rate. For nuclide identification purpose, one (1)
optional high resolution CZT detector is used. For counting thermal neu-
trons, one (1) optional
3
He proportional counter is used.
The I™ operates in two main modes: Unattended Surveillance
Mode (USM) and User Attended Mode (UAM). UAM allows you to interact
with the I™, whereas the device runs unattended in USM.
In USM, the device constantly monitors gamma dose rate and neutron count
rate (optional). A green status LED indicates that the device is active and
running. To save power, the display is not powered in this mode. If the user-
defined alarm levels are exceeded, the display is powered up and visual, audi-
ble, and tactile (via vibration motor) indications are given. The display can be
manually switched on at any time.
LED’s, a speaker, a vibration motor, and an optional headset featuring Blue-
Thermo Fisher Scientific Interceptor™/en/5.1(4956)/Feb2010 iii
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