Remote sensing of radiation

Moss, C. Eugene; Goeller, Roy M.; Milligan, D.F; Valencia, J.E.; Zinn, J.

doi:10.1016/s0168-9002(98)01120-6

Cited by 12 publications

(3 citation statements)

References 5 publications

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“…This will be discussed further below. Moss et al (1999) have performed a similar study using an ion chemistry model Moss et al (1999) our HNO3 concentration increases by several orders of magnitude. One notable difference between the two studies is the response of the species H2O2.…”

mentioning

confidence: 86%

Remote Sensing of Alpha and Beta Sources - Modeling Summary

Dignon¹,

Frank²,

Cherepy³

2005

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mentioning

confidence: 86%

Remote Sensing of Alpha and Beta Sources - Modeling Summary

Dignon¹,

Frank²,

Cherepy³

2005

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“…Nuclear hazards arise through accidents [4], war [5] and terrorism [6,7] and defending against these hazardous materials involves tasks ranging from acquiring intelligence to assuring decontamination [8]. Whilst early published work on nuclear detection by non-traditional signatures [9] was arguably driven by the fear of terrorism [10], the civil nuclear energy renaissance and concerns of nuclear weapons proliferation [11,12] are increasingly important drivers for seeking enhanced nuclear sensing. Clear benefits will arise across all sectors from an enhanced capacity to sense radioactive and nuclear materials from greater range, at lower concentrations, with greater specificity, with more precise spatial attribution, in a more timely fashion and with greater operational versatility than is currently possible.…”

Section: Introductionmentioning

confidence: 99%

A framework for the systematic realisation of phenomena for enhanced sensing of radiological and nuclear materials, and radiation

Healy

2015

J. Radiol. Prot.

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The quest for new sensing phenomena continues because detecting, discriminating, identifying, measuring and monitoring nuclear materials and their radiation from greater range, at lower concentrations, and in a more timely fashion brings greater safety, security and efficiency. The potential phenomena are diverse, and those that have been realised can be found in disparate fields of science, engineering and medicine, which makes the full range difficult to realise and record. The framework presented here offers a means to systematically and comprehensively explore nuclear sensing phenomena. The approach is based on the fundamental concepts of matter and energy, where the sequence starts with the original nuclear material and its emissions, and progressively considers signatures arising from secondary effects and the emissions from associated materials and the environment. Concepts of operations such as active and passive interrogation, and networked sensing are considered. In this operational light, unpacking nuclear signatures forces a fresh look at the sensing concept. It also exposes how some phenomena that exist in established technology may be considered novel based on how they could be exploited rather than what they fundamentally are. This article selects phenomena purely to illustrate the framework and how it can be best used to foster creativity in the quest for novel phenomena rather than exhaustively listing, categorising or comparing any practical aspects of candidate phenomena.

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“…For example, it is well known that several hundreds ppb of radicals such as ozone, nitrogen oxide are produced through radiochemical reactions between ionizing radiations and the atmosphere 1) when the absorbed dose rate in the radiation field exceeds 10 Gy/s. Heretofore, Moss et al 2) have attempted to measure the radiation intensity remotely by detecting atmospheric radicals in a spectroscopic method, but have faced a large difficulty in achieving the detection sensitivity enough to measure a very small amount of radiation induced radicals.…”

Section: Introductionmentioning

confidence: 99%

Development of novel radiation remote-sensing method based on laser spectroscopic measurement of radiation-induced radicals

et al. 2004

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For monitoring of intense radiation fields, such as around nuclear reactors, high energy accelerators, it is requested to develop a reliable radiation sensing method with high radiation resistance. As one of the promising methods, we propose a novel radiation remote-sensing method based on high sensitive cavity ring-down (CRD) laser spectroscopic measurement of radiation induced radicals. To verify the detection principle, we have made basic experiments on the CRD spectroscopic measurement of the radiation induced ozone concentration in the air irradiated by 60 Co gamma-rays, while we have also developed the calculation model to estimate the yields of radiation induced radicals by solving simultaneous rate equations numerically. Through comparison between the experiments and the calculations, we have confirmed the detection principle and the validity of the calculation model, where the results show that the detectable range for the absorbed dose rate is from 4.8x10 -2 to 3.2 Gy/s with time resolution of 35 sec by controlling the flow rate of the irradiated air.

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Remote sensing of radiation

Cited by 12 publications

References 5 publications

Remote Sensing of Alpha and Beta Sources - Modeling Summary

Remote Sensing of Alpha and Beta Sources - Modeling Summary

A framework for the systematic realisation of phenomena for enhanced sensing of radiological and nuclear materials, and radiation

Development of novel radiation remote-sensing method based on laser spectroscopic measurement of radiation-induced radicals

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