Methodology for Identifying Radiation Effects in Robotic Systems With Mechanical and Control Performance Variations

Howard, Joseph T.; Barth, Eric J.; Schrimpf, R.D.; Reed, Robert A.; Adams, Lowell; Vibbert, D.; Witulski, A.F.

doi:10.1109/tns.2018.2886242

Cited by 2 publications

(4 citation statements)

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“…Metal-oxide semiconductors (MOS) have electronic properties altered (Ma and Dressendorfer, 1989), elastomer materials used in seals can become embrittled (Wündrich, 1984), and optical components have been known to change their transparency and refractive indices over time (Brichard et al, 2001). Changes in the magnitude of measured errors in motor control were observed by Howard et al (2018). Given enough radiation, these changes in mechanical, optical, or electronic properties can ultimately cause failure in susceptible components, potentially causing the robot to break down.…”

Section: Methodology For Performance Assessment Of Industrial Robotsmentioning

confidence: 99%

“…Step 1. Due to high complexity of off-the-shelf industrial robots, it is often very hard to establish analytical models of the systems which may be influenced by radiation (Howard et al, 2018 ). However, it is possible to identify the components which are least radiation tolerant and estimate their failure dose through individual component irradiation testing.…”

Section: Methodology For Performance Assessment Of Industrial Robomentioning

confidence: 99%

“…All possible measurements related to the performance of a robotic system should be recorded for later analysis of degradation from radiation exposure. Howard et al ( 2018 ) recorded all the input and output signals of each sensing and controlling component at a high sampling rate of 1.25 kHz, during their test exposure using X-rays. However, such hardware level signals are often difficult to access in industrial robots, but it may be possible to observe at least the control errors from robotic controllers.…”

Section: Methodology For Performance Assessment Of Industrial Robomentioning

confidence: 99%

See 2 more Smart Citations

Radiation Tolerance Testing Methodology of Robotic Manipulator Prior to Nuclear Waste Handling

et al. 2020

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Dramatic cost savings, safety improvements and accelerated nuclear decommissioning are all possible through the application of robotic solutions. Remotely-controlled systems with modern sensing capabilities, actuators and cutting tools have the potential for use in extremely hazardous environments, but operation in facilities used for handling radioactive material presents complex challenges for electronic components. We present a methodology and results obtained from testing in a radiation cell in which we demonstrate the operation of a robotic arm controlled using modern electronics exposed at 10 Gy/h to simulate radioactive conditions in the most hazardous nuclear waste handling facilities.

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Section: Methodology For Performance Assessment Of Industrial Robotsmentioning

confidence: 99%

Section: Methodology For Performance Assessment Of Industrial Robomentioning

confidence: 99%

Section: Methodology For Performance Assessment Of Industrial Robomentioning

confidence: 99%

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Radiation Tolerance Testing Methodology of Robotic Manipulator Prior to Nuclear Waste Handling

et al. 2020

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“…The exposed radiation source can be broadly categorized into two categories mainly: 1) ray based and 2) particle based. Extensive researches have highlighted that radiation exposure impinge semiconductor devices [2]- [3]. The focal point of radiation induced degradation measurement has been on custom camera sensors.…”

Section: B Existing Workmentioning

confidence: 99%