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There has been a great increase in the development of trace and ultra-trace explosive detection in the last decade, mainly because of the globalization of terrorist acts, and the reclamation of contaminated land previously used for military purposes. In this regard, detection methods for traces of explosives continue to be hampered by the low volatility of(More)
The capability to detect traces of explosives sensitively, selectively and rapidly could be of great benefit for applications relating to civilian national security and military needs. Here, we show that, when chemically modified in a multiplexed mode, nanoelectrical devices arrays enable the supersensitive discriminative detection of explosive species. The(More)
  • Eli Flaxer
  • The Review of scientific instruments
  • 2011
In electron ionization source, electrons are produced through thermionic emission by heating a wire filament, accelerating the electrons by high voltage, and ionizing the analyzed molecules. In such a system, one important parameter is the filament emission current that determines the ionization rate; therefore, one needs to regulate this current. On the(More)
We present a complete design of a multi channels PID controller for Thermoelectric Cooler (TEC) using a pulse width modulation (PWM) technique implemented by a dedicated programmable logic device (PLD) programmed by VHDL. The PID control loop is implemented by software written by National Instrument Lab-Windows CVI. Due to the fact that the implementation(More)
distributions from laser-produced Sn plasma Russell A. Burdt, Yezheng Tao, Mark S. Tillack, Sam Yuspeh, Nek M. Shaikh, Eli Flaxer, and Farrokh Najmabadi Center for Energy Research, University of California San Diego, La Jolla, California 92093, USA Electrical and Computer Engineering, University of California San Diego, La Jolla, California 92093, USA AFEKA(More)
The AFEKA – Tel Aviv Academic College of Engineering has developed a program in mechatronics studies designed not just for students of mechanical engineering but for every student in any fi eld of engineering, as well as for experimentalists in natural sciences. This program supplies the students with tools that allow them to gain interdisciplinary insights(More)
In order to protect the sample and the tip against current transients in a scanning tunneling microscope, which in most cases damages the scanned surface and the tip, when using a bias higher than 1V, we have designed a simple and low-cost circuit that limits the tunneling current. During the evolution of the current transient, when the current exceeds a(More)
  • Eli Flaxer
  • 2012 IEEE 27th Convention of Electrical and…
  • 2012
Dielectric-Barrier discharge (DBD) is the electrical discharge between two electrodes separated by an insulating dielectric barrier, originally called silent discharge. It is also known as ozone production discharge or partial discharge. The process normally uses high-voltage alternating current, ranging from lower RF to microwave frequencies. However,(More)
This paper presents a new, comprehensive digital circuit used for the control of a novel Gas Chromatograph Mass Spectrometer (GC-MS) interface that is based on Supersonic Molecular Beam (SMB). The circuit includes a Texas Instruments 150MHz digital signal controller (DSC), high voltage amplifiers for 8 independent channels and 4 independent channels of high(More)