Radiation Recognition Algorithm and the Replay Tool with DNDO

Radiation Recognition Algorithm and the Replay Tool with DNDO

NUVIA Dynamics Inc. (formerly known as Pico Envirotec Inc.) participated in a Cooperative Research and Development Agreement (CRADA) program for the Replay Tool and Algorithm improvement with Domestic Nuclear Detection Office (DNDO), a Federal agency within the Department of Homeland Security (DHS). The Replay Tool System is a batch oriented application and can handle more than 5000 files, using customizable Radionuclides libraries and Identification algorithms.

The Radiation Detection System Replay Tool and Radiation Recognition Algorithm improvement were developed during the CRADA Project.

The Replay Tool is a stand-alone version of the algorithms employed in the radiation detection system to generate alarm decisions and indicators.  Its primary function is to reproduce the algorithm that is used in a Radiation Detection system as closely as possible.

The Radiation Recognition Algorithm is an algorithm used to detect, identify, or categorize radiation signatures in input data, including Radionuclide Identification from a radionuclide library.

The Replay Tool system can work with the data acquired with instruments supporting NUVIA Dynamics’ (Pico Envirotec’s) binary data format or any data in a format meeting ANSI N42.42 requirements. It can handle more than 5000 files providing resulting output data in ANSI N42.42 format.

The Replay Tool System was tested by DNDO specialists and can be supplied with any of NUVIA Dynamics’ systems for Radiation Detection and Monitoring which are offered for a wide range of customers in Homeland Security (HLS), Emergency First Response (EFR, HAZMAT), CBRNe, Border Control and other Law Enforcement and Environment Control industry sectors.

P-THEM test flight in Sudbury

P-THEM test flight in Sudbury

Another test flight of the P-THEM system has been conducted in Sudbury in the Beginning of October 2014.


The PICO Envirotec team (including Anton, Ian, Ivo and Scott) assembled the system in Sudbury airport on the October 1. Though we were ready but the ceiling was about 300ft – we had to wait for a clear sky.

On October 2, the weather offered us a small timeframe to do one test flight.

Conductor body in the test area has been nicely detected.


Here’s the video of the flight.