Localization of hotspots via a lightweight system combining Compton imaging with a 3D lidar camera
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Efficient and secure decommissioning of nuclear facilities demands advanced technologies. In this context, gamma-ray detection and imaging are crucial in identifying radioactive hotspots and monitoring radiation levels. Our study is dedicated to developing a gamma-ray detection system tailored for integration into robotic platforms for nuclear decommissioning, offering a safe and automated solution for this intricate task and ensuring the safety of human operators by mitigating radiation exposure and streamlining hotspot localization. Our approach integrates a Compton camera based 3D reconstruction algorithm with a single Timepix3 detector. This eliminates the need for a second detector and significantly reduces system weight and cost. Additionally, combining a 3D camera with the setup enhances hotspot visualization and interpretation, rendering it an ideal solution for practical nuclear decommissioning applications. In a proof-of-concept measurement utilizing a 137Cs source, our system accurately localized and visualized the source in 3D with an angular error of 1◦ and estimated the activity with a 3% relative error. This promising result underscores the system’s potential for deployment in real-world decommissioning settings. Future endeavors will expand the technology’s applications in authentic decommissioning scenarios and optimize its integration with robotic platforms. The outcomes of our study contribute to heightened safety and accuracy for nuclear decommissioning works through the advancement of cost-effective and efficient gamma-ray detection systems
Abstract
Efficient and secure decommissioning of nuclear facilities demands advanced technologies. In this context, gamma-ray detection and imaging are crucial in identifying radioactive hotspots and monitoring radiation levels. Our study is dedicated to developing a gamma-ray detection system tailored for integration into robotic platforms for nuclear decommissioning, offering a safe and automated solution for this intricate task and ensuring the safety of human operators by mitigating radiation exposure and streamlining hotspot localization. Our approach integrates a Compton camera based 3D reconstruction algorithm with a single Timepix3 detector. This eliminates the need for a second detector and significantly reduces system weight and cost. Additionally, combining a 3D camera with the setup enhances hotspot visualization and interpretation, rendering it an ideal solution for practical nuclear decommissioning applications. In a proof-of-concept measurement utilizing a 137Cs source, our system accurately localized and visualized the source in 3D with an angular error of 1◦ and estimated the activity with a 3% relative error. This promising result underscores the system’s potential for deployment in real-world decommissioning settings. Future endeavors will expand the technology’s applications in authentic decommissioning scenarios and optimize its integration with robotic platforms. The outcomes of our study contribute to heightened safety and accuracy for nuclear decommissioning works through the advancement of cost-effective and efficient gamma-ray detection systems
참고문헌 (28)
- R. Volk, "The future of nuclear decommissioning – a worldwide market potential study", Energy Pol, 124, pp.226~261 (2019)
- J. Kaulard, "Radiation Protection during Decommissioning of Nuclear Facilities – Experiences and Challenges", 70, pp.14~24 (2005)
- D. De Schepper, "ARCHER: autonomous robot platform for CHaractERization", IEEE Rob. Autom. Lett (2022)
- Radiological Characterization of Shut Down Nuclear Reactors for Decommissioning Purposes, , INTERNATIONAL ATOMIC ENERGY AGENCY, 389~ (1998)
- F. Jean, "CARTOGAM portable gamma imaging", 47(3), pp.952~956 (2000)
- K. Amgarou, "iPIX: A New Generation Gamma Imager for Rapid and Accurate Localization of Radioactive Hotspots", pp.3~5 (2014)
- C.G. Wahl, "The Polaris-H imaging spectrometer", Nucl. Instruments Methods Phys. Res. Sect. A Accel. Spectrometers, Detect. Assoc. Equip, 784, pp.377~381 (2015)
- D. Turecek, "Compton camera based on Timepix3technology", J. Instrum, 13(11), pp.C11022~ (2018)
- Y. Kim, "Radiation measurement and imaging using 3D position sensitive pixelated CZT detector", Nucl. Eng. Technol, 51(5), pp.1417~1427 (2019)
- M. Herranz, "Recommended in Situ Measurement Techniques for Each Constrained Environment", INSIDER, pp.755554~ (2020)
- K. Amgarou, "State-of-the-art and challenges of non-destructive techniques for in-situ radiological characterization of nuclear facilities to be dismantled", Nucl. Eng. Technol, 53(11), pp.3491~3504 (2021)
- V. Paradiso, "3-D localization of radioactive hotspots via portable gamma cameras", Nucl. Instruments Methods Phys. Res. Sect. A Accel. Spectrometers, Detect. Assoc. Equip, 910, pp.194~203 (2018)
- D. Turecek, "Single layer Compton camera based on Timepix3 technology", J. Instrum, 15(1), pp.17~ (2020)
- T. Poikela, "Timepix3: a 65K channel hybrid pixel readout chip with simultaneous ToA", ToT and sparse readout, 2014, pp.9(5), ~
- M. J. Cree, "Towards direct reconstruction from a gamma camera based on Compton scattering", IEEE Trans. Med. Imag, 13(2), pp.398~407 (1994)
- "PIXet Pro (V1.7.8)"[URL]
- M. Khalil, "Intrinsic XRF corrections in Timepix3 CdTe spectral detectors", J. Instrum, 14(1), pp.C01018~ (2019)
- "X-Ray Transition Energies, version 1.2" (2005)[URL]
- B. Bergmann, "3D track reconstruction capability of a silicon hybrid active pixel detector", Eur. Phys. J. C, 77(6), pp.1~9 (2017)
- B. Bergmann, "D reconstruction of particle tracks in a 2 mm thick CdTe hybrid pixel detector", Eur. Phys. J. C, 79(2) (2019)
- G. Arino-Estrada, "Measurement of mobility and lifetime of electrons and holes in a Schottky CdTe diode", J. Instrum, 9(12) (2014)
- J. Fink, "Characterization of charge collection in CdTe and CZT using the transient current technique", Nucl. Instruments Methods Phys. Res. Sect. A Accel. Spectrometers, Detect. Assoc. Equip, 560(2), pp.435~443 (2006)
- Q. -Y. Zhou, "Open3D: A Modern Library for 3D Data Processing", ~ (2018)
- D. Turecek, "USB 3.0 readout and time-walk correction method for Timepix3 detector", J. Instrum, 11(12) (2016)
- E. Frojdh, "Timepix3: first measurements and characterization of a hybridpixel detector working in event driven mode", J. Instrum, 10(1), pp.C01039~ (2015)
- M. Urban, "Timepix3: temperature influence on X-ray measurements in counting mode with Si sensor", Radiat. Meas, 141, pp.106535~ (2021)
- L. Brabants, "Validation of TOPAS MC for modelling the efficiency of an extended-range coaxial p-type HPGe detector", Appl. Radiat. Isot, 173, pp.109699~ (2021)
- G. Daniel, "Compton imaging reconstruction methods: a comparative performance study of direct backprojection, SOE, a new Bayesian algorithm and a new Compton inversion method applied to real data with Caliste", EPJ Web Conf, 225, pp.06006~ (2020)