This document describes the Cherenkov detector that is to be constructed for the Hall A neutron d2 experiment (E06-014). The inclusive nature of that experiment makes the addition of the Cerenkov counter for pion and proton rejection critical for the low energy bins. Monte Carlo and analysis of G E suggest particle rates of (assuming a 500MeV ee threshold on the the BigBite shower detector): • ...

Electronic nose (E-Nose) is one of the applications for surface acoustic wave (SAW) sensors. In general, the SAW sensor, as a gas sensor, consists of a passive element (LiNbO3 and IDTs) and an oscillator circuit, as shown in Fig. 1. For the E-Nose applications, a SAW sensor array is formed to construct the odor patterns for gas recognition. Because the oscillator frequency of each sensor is so ...

The parts-per-billion-level nitric oxide (NO) gas sensing capability of a copper-ion-doped polyaniline/tungsten oxide nanocomposite (Cu(2+)/PANI/WO3) film coated on a Rayleigh surface acoustic wave device was investigated. The sensor developed in this study was sensitive to NO gas at room temperature in dry nitrogen. The surface morphology, dopant distribution, and electric properties were char...

hotolithography and the semiconductor industry are facing a critical juncture. The 32 nm node (at which production photolithographic technology is able to pattern some specific chip features at 32 nm) is only a few years away, and next-generation methods for patterning the even-smaller, sub-30-nanometer-scale dimensions on silicon wafers at the node beyond that are unproved. Scientists at IBM’s...

A single polyaniline nanofiber field effect transistor (FET) gas sensor fabricated by means of electrospinning was investigated to understand its sensing mechanisms and optimize its performance. We studied the morphology, field effect characteristics and gas sensitivity of conductive nanofibers. The fibers showed Schottky and Ohmic contacts based on different electrode materials. Higher applied...

In this work we have fabricated hydrogen gas sensors based on undoped and 1 wt% multi-walled carbon nanotube (MWCNT)-doped tungsten oxide (WO(3)) thin films by means of the powder mixing and electron beam (E-beam) evaporation technique. Hydrogen sensing properties of the thin films have been investigated at different operating temperatures and gas concentrations ranging from 100 ppm to 50,000 p...

Quercetin inhibits proliferation of human gastric and colonic cancer cells in vitro by suppressing mitosis and increasing apoptosis. Quercetin might therefore act as an anticarcinogen in the alimentary tract, but previous findings have been inconsistent. We fed rats quercetin at dietary concentrations of 1, 5, 20, and 50 g/kg. At < or = 20 g/kg, we observed a statistically significant reduction...