Simultaneous, robot-compatible γ-ray spectroscopy and imaging of an operating nuclear reactor

Tsitsimpelis, Ioannis and West, Andrew and Licata, Mauro and Aspinall, Michael and Jazbec, Anze and Snoj, Luka and Martin, Phillip and Lennox, Barry and Joyce, Malcolm (2020) Simultaneous, robot-compatible γ-ray spectroscopy and imaging of an operating nuclear reactor. IEEE Sensors Journal. ISSN 1530-437X

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Abstract

The design and test of a robot-compatible, radiation detection instrument providing simultaneous γ-ray imaging and γ-ray spectroscopy is described. The sensing system comprises a cerium bromide inorganic scintillation detector and a cylindrical, lead slot collimator that is configured with a robot-compatible, on-board data acquisition system. The mount for the sensor is a lightweight, bespoke 3-axis gimbal actuated by servos for pan, tilt and rotation of the collimator for imaging capability. This paper discusses the integration of this relatively low-cost radiation detection apparatus with a commercially available, Robot-Operating-System-controlled robotic platform (a Clearpath Robotics™ Jackal). The detection system is compliant with the power and mass payload constraints of the robot. Its performance has been evaluated by means of two practical examples: a) measurements in a laboratory environment to assess the ability of the system to resolve two caesium-137 point sources, and b) deployment at the Jožef Stefan Institute TRIGA Mark II research reactor to assess the ability of the system to characterise the γ-ray emission at 1 kW from a horizontal tangential beam port in the reactor hall and from the reactor sample pool above the core.

Item Type:
Journal Article
Journal or Publication Title:
IEEE Sensors Journal
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2208
Subjects:
ID Code:
149043
Deposited By:
Deposited On:
13 Nov 2020 12:50
Refereed?:
Yes
Published?:
Published
Last Modified:
24 Nov 2020 08:58