Neutron-based portable drug probe

Womble, Phillip C.; Vourvopoulos, G.; Howard, Jack B.; Paschal, Jon

doi:10.1063/1.59213

Cited by 4 publications

(4 citation statements)

References 1 publication

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“…For narcotics detection the approach generally seeks to quantify the relative strength of carbon, oxygen, and hydrogen from within an interrogation volume, seeking to match particular ratios for these elements with known ratios for the materials. [252][253][254][255][256] For explosives the presence of nitrogen in high densities is used as a key indicator while full analysis of N, C, O, and H is used to confirm detection and allows for identification in some cases. [257,258] Data for these parameters is presented in Table 8 for some important explosive materials.…”

Section: Detection Of Contraband High Explosives and Chemical Weapomentioning

confidence: 99%

Production and applications of neutrons using particle accelerators

Chichester

2009

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Advances in neutron science have gone hand in hand with the development and of particle accelerators from the beginning of both fields of study. Early accelerator systems were developed simply to produce neutrons, allowing scientists to study their properties and how neutrons interact in matter, but people quickly realized that more tangible uses existed too. Today the diversity of applications for industrial accelerator-based neutron sources is high and so to is the actual number of instruments in daily use is high, and they serve important roles in the fields where they're used. This chapter presents a technical introduction to the different ways particle accelerators are used to produce neutrons, an historical overview of the early development of neutron-producing particle accelerators, a description of some current industrial accelerator systems, narratives of the fields where neutron-producing particle accelerators are used today, and comments on future trends in the industrial uses of neutron producing particle accelerators.

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Section: Detection Of Contraband High Explosives and Chemical Weapomentioning

confidence: 99%

Production and applications of neutrons using particle accelerators

Chichester

2009

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“…The penetrating ability of neurons and γ rays provides an effective way for analyzing the elemental content of an interrogated material. 3 However, this instrument is bulky, expensive, and not easily field portable. Another detection system uses γ resonance technology that provides the combined capability of absorption and fluorescence in the simultaneous detection and imaging of multiple elements for identification of contraband and total density for imaging of contents.…”

Section: Introductionmentioning

confidence: 99%

“…On-site detection of contraband has been an active area of research in the past decade. − The increasing number of contraband is forcing security professionals to face the daunting task of identifying field employable technologies that can accurately pinpoint the presence of contraband materials in small quantities. Instruments used in the field include gas chromatograph (GC) with mass spectrometer (MS), neutron-alpha activation spectrometer, and neutron analyzers …”

Section: Introductionmentioning

confidence: 99%

“…Another type of field detectors uses the characteristic γ rays from the elements in drugs such as C, O, H, Cl, and N. These are produced by nuclear reactions from fast and thermal neutrons. The penetrating ability of neurons and γ rays provides an effective way for analyzing the elemental content of an interrogated material . However, this instrument is bulky, expensive, and not easily field portable.…”

Section: Introductionmentioning

confidence: 99%

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Detection of Contrabands in Cargo Containers Using a High-Speed Gas Chromatograph with Surface Acoustic Wave Sensor

Staples¹,

Viswanathan²

2008

Ind. Eng. Chem. Res.

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A portable chemical profiling system for cargo containers using a single, uncoated, high Q surface acoustic wave sensor, along with a high-speed chromatograph and column, a programmable gate array microprocessor, and a vapor preconcentrator, is described. This unit provides a recognizable visual vectorial image in N-dimensional space (where N equals the number of sensors) of specific vapor mixtures (fragrances) containing possibly hundreds of different chemical species in 20 s or near real time with picogram sensitivity. This new approach, based upon fast chromatography, which combines the technology with sampling system is proven to solve complex contraband detection and measurement problems with the probability of detection equal to or greater than 90% with a false alarm rate of 1%.

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Use of neutron reflection method for chemical analysis of bulk samples

Papp

Csikai

2015

J Radioanal Nucl Chem

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Neutron-based portable drug probe

Cited by 4 publications

References 1 publication

Production and applications of neutrons using particle accelerators

Production and applications of neutrons using particle accelerators

Detection of Contrabands in Cargo Containers Using a High-Speed Gas Chromatograph with Surface Acoustic Wave Sensor

Use of neutron reflection method for chemical analysis of bulk samples

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