A Portable Chemical Detection System with Anti-body Biosensor for Impedance Based Monitoring of T2-mycotoxin Bioterrorism Agents

2018 ◽  
pp. 45-73
Author(s):  
V. I. Ogurtsov ◽  
K. Twomey
Keyword(s):  
Detection System ◽  
Chemical Detection ◽  
Anti Body

CMOS chip chemical detection system comprising mass-sensitive nanocantilevers

2006 ◽  
Author(s):  
Ashok Srivastava ◽  
Rajiv Soundararajan ◽  
Jui-Ching Hsu
Keyword(s):  
Detection System ◽  
Chemical Detection ◽  
Cmos Chip

Concepts for scalable CDMA-networked M/LWIR semiconductor laser standoff chemical detection system

2004 ◽  
Author(s):  
Yi Wang ◽  
Yang Wang ◽  
Chuan Peng ◽  
Huanlin Zhang ◽  
Anush Seetharaman ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Detection System ◽  
Chemical Detection

Chemical detection system made by gravimetric sensor arrays and DSP-based electronics

2003 ◽  
Author(s):  
A. Depari ◽  
M. Ferrari ◽  
P. Ferrari ◽  
V. Ferrari ◽  
A. Flammini ◽  
...  
Keyword(s):  
Detection System ◽  
Sensor Arrays ◽  
Chemical Detection

Development and testing of a long-range airborne CO2 DIAL chemical detection system

1998 ◽  
Author(s):  
N. S. Higdon ◽  
Daniel C. Senft ◽  
Marsha J. Fox ◽  
Carla M. Hamilton ◽  
Brian T. Kelly ◽  
...  
Keyword(s):  
Long Range ◽  
Detection System ◽  
Chemical Detection

scholarly journals EU-SENSE detection system in mass gathering evacuation

2021 ◽  
Vol 1 (80) ◽  
pp. 175-197
Author(s):  
Joanna Kozioł ◽  
Magdalena Gikiewicz ◽  
Paweł Gromek ◽  
Łukasz Szklarski
Keyword(s):  
Virtual Environment ◽  
Detection System ◽  
Sensor Nodes ◽  
Identification System ◽  
Chemical Detection ◽  
Mass Gathering ◽  
Detection Systems ◽  
Detection And Identification ◽  
Detection Technology ◽  
The Eu

Current CBRNe detection systems are mainly available as standalone detectors, and seldom offer the potential of networking and data fusion. The research objective is to simulate the scenario-based models built in a virtual environment to examine the possible impact of the EU-SENSE system on chemical detection technology, based on an innovative CBRNe detection and identification system, which is a network of heterogeneous sensor nodes, on the evacuation of a mass gathering. The chemical detection system presents real possibilities of understanding situations that depend on the first symptoms of human health and behaviour. This information will facilitate taking appropriate measures when CBRNe hazard forces to evacuation, including quick identification of the hazard and necessity to modify preliminary evacuation gates (in terms of their localization and width).

Analysis of electron-diffraction intensity profiles using a photodiode-array detection system

1983 ◽  
Vol 41 ◽  
pp. 322-323
Author(s):  
J. B. Warren
Keyword(s):  
Electron Diffraction ◽  
Diffraction Pattern ◽  
Detection System ◽  
High Energy ◽  
Photographic Emulsion ◽  
Diffraction Intensity ◽  
Silicon Photodiode ◽  
Photodiode Array Detection ◽  
Analog To Digital ◽  
Photodiode Array

Electron diffraction intensity profiles have been used extensively in studies of polycrystalline and amorphous thin films. In previous work, diffraction intensity profiles were quantitized either by mechanically scanning the photographic emulsion with a densitometer or by using deflection coils to scan the diffraction pattern over a stationary detector. Such methods tend to be slow, and the intensities must still be converted from analog to digital form for quantitative analysis. The Instrumentation Division at Brookhaven has designed and constructed a electron diffractometer, based on a silicon photodiode array, that overcomes these disadvantages. The instrument is compact (Fig. 1), can be used with any unmodified electron microscope, and acquires the data in a form immediately accessible by microcomputer.Major components include a RETICON 1024 element photodiode array for the de tector, an Analog Devices MAS-1202 analog digital converter and a Digital Equipment LSI 11/2 microcomputer. The photodiode array cannot detect high energy electrons without damage so an f/1.4 lens is used to focus the phosphor screen image of the diffraction pattern on to the photodiode array.

Data Acquisition and Handling Unit for a Quantitative Use of Electron Energy Loss Spectroscopy

1977 ◽  
Vol 35 ◽  
pp. 232-233 ◽  
Author(s):  
P. Trebbia ◽  
P. Ballongue ◽  
C. Colliex
Keyword(s):  
Electron Microscope ◽  
Energy Loss ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Single Channel ◽  
Detection System ◽  
Surface Barrier ◽  
Solid State Detector ◽  
Electrostatic Mirror ◽  
Electron Energy Loss

An effective use of electron energy loss spectroscopy for chemical characterization of selected areas in the electron microscope can only be achieved with the development of quantitative measurements capabilities.The experimental assembly, which is sketched in Fig.l, has therefore been carried out. It comprises four main elements.The analytical transmission electron microscope is a conventional microscope fitted with a Castaing and Henry dispersive unit (magnetic prism and electrostatic mirror). Recent modifications include the improvement of the vacuum in the specimen chamber (below 10-6 torr) and the adaptation of a new electrostatic mirror.The detection system, similar to the one described by Hermann et al (1), is located in a separate chamber below the fluorescent screen which visualizes the energy loss spectrum. Variable apertures select the electrons, which have lost an energy AE within an energy window smaller than 1 eV, in front of a surface barrier solid state detector RTC BPY 52 100 S.Q. The saw tooth signal delivered by a charge sensitive preamplifier (decay time of 5.10-5 S) is amplified, shaped into a gaussian profile through an active filter and counted by a single channel analyser.

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