RIID

A Radioisotope Identification Device (RIID) is a small, lightweight, portable instrument that identifies radioactive materials by measuring the energy of gamma rays they emit. RIIDs can also perform spectroscopic analysis to distinguish between different radioactive isotopes.

What is a RIID?

Radioisotope Identification Devices (RIIDs) are instruments that are designed to determine the identity of radioactive materials by measuring the energy of the emitted gamma rays. Law enforcement, customs, and other personnel are equipped with RIIDs to interdict illicit movement of radioactive material, while radiological emergency personnel, firefighters and other response personnel also use RIIDs for situational assessment during radiological emergencies

When radiation sources are detected by screening devices such as radiation portal monitors or personal radiation detectors (PRDs), RIIDs are used to determine whether the source of radioactivity constitutes a high level threat.

Kromek's RIIDs

D5 RIID main screen

D5 RIID

The D5 RIID is a small, light, <4.5% resolution wearable RIID with an expansive radioisotope library and an ultra low false alarm rate. It continuously scans and accurately identifies radiological threats in real time, even in mixed source environments.

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D3M

A wearable personal radiation detector (PRD) designed for first responders, armed forces, border security and other CBRN experts with an ultra-low false alarm rate, six-times lower than the ANSI standards.

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D3S ID

A wearable, concealable Gamma and Neutron detector which puts the power of a RIID into a package the size of a Personal Radiation Detector (PRD). D3S ID is the new standard in portable radiation detectors.

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RIID Comparison Table

Features D3M ID

 D3S ID

 D5 RIID

 
Detects radiation from Gamma emitting sources ✔ ✔ ✔
Detections radiation from Neutron emitting sources ✔ ✔ ✔
Gamma detector material CsI(TI) CsI(TI) CLLBC
Gamma detector volume 16cm3

(1 in3)

 16cm3

(1 in3)

 174cm3

(11 in3)
Gamma resolution <7% <7% <4%
Neutron detector material LiF:ZnS LiF:ZnS CLLBC
High dose sensor Pin diode Pin diode Pin diode
Built-in screen ✔ ✖ ✔
Smartphone interface ✔ ✔ ✖
Standards ANSI N42.34

(identification)

 ANSI N42.34

(identification)
ANSI N42.34
MIL-STD-810H
DEF STAN 00-035
IP rating IP65 IP53 IP67
Battery type Internal rechargeable Internal rechargeable
Internal rechargeable
Replaceable (3 x AA)
Battery life 24 hrs 12 hrs 24hrs
Device Size (excluding phone) 122mm x 80mm x 23mm

(4.8” x 3.1” x 0.9”)

 132 mm x 80 mm x 23.5 mm

(5.2″ x 3.1″ x 0.9″)

 187mm x 80mm x 70mm

(7.4″ x 3.1″ x 2.8″)
Device Weight (excluding phone) 261g

(0.57 lbs)

 237g

(0.52 lbs)

 660g

(1.47 lbs)
Communications options
USB and Bluetooth® on device
Wi-Fi and cellular on smartphone
USB and Bluetooth® on device
Wi-Fi and cellular on smartphone
USB, Bluetooth® & WiFi
Performs isotope ID ✔ ✔ ✔
Accumulated dose ✔ ✖ ✔
Discreet monitoring ✖ ✔ ✖

Which resolution do I need?

Download and read our application note about why resolution matters. Learn more about the advantages the medium resolution of Kromek’s D5 RIID brings, and find out when low resolution RIIDs come into their own.

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