Demonstration of COMRIS, a 3-D visualization software for radioactive substances based on Compton cameras and SLAM devices

Sato, Yuki  ; Minemoto, Kojiro*; Nemoto, Makoto*

We have been developing software to visualize the location of radiation sources in three dimensions by importing output data from Compton cameras, survey meters, and SLAM (Simultaneous Localization and Mapping) devices. The software, named COMRIS (COMpton camera for Radiation Imaging System), is GUI-based and visualizes the location of radiation sources by capturing the output data of the above multiple measuring instruments. The authors previously presented an overview of COMRIS and reported the results of visualizing a Cs test source in the laboratory by combining a Compton camera and a 3D-Light Detection and Ranging (LiDAR)-based SLAM. However, we have not been able to report how this software is operated on a GUI screen. In addition, an new attempt was made this time to expand the effective field of view (FoV) to both front and rear by preparing two Compton cameras, each of which is sensitive only to the front of the device, and placing them back-to-back. In this work, we report once again on the integration method of output data from SLAM devices and Compton cameras using COMRIS, based on the GUI screen. In addition, data output from two back-to-back Compton cameras and SLAM devices were imported into COMRIS to demonstrate visualization of radiation sources.