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We propose to demonstrate near infrared (NIR) sensor arrays with 10 times lower noise than arrays presently available to improve the sensitivity of current spectroscopy systems. Such an achievement would allow the measurement of new phenomena through Raman spectroscopy and other diagnostic techniques. The low noise performance is enabled by the use of low-noise Si readout integrated circuits mated ...

A volatile organic compound (VOC) detection system that is portable, sensitive to the low-ppb level, and able to provide reliable measurements in real time is needed for environmental compliance monitoring and process control in chemical plants. Recently, handheld and battery-powered ppb-level VOC photoionization detectors (PID) have become commercially available. However, the presence of water ...

NIST is seeking a large-area solar simulator to overcome the shortcomings of current devices. Therefore, Physical Optics Corporation (POC) developed in Phase I a new Holographic Light-Emitting-Diode (LED)-Based Solar Simulator (HOLIOS) system based on: high-power LEDs with electronic drivers; holographic filters; and collimating, homogenizing, and projection optics for indoor testing of photovolta ...

The objective of this proposal is to create a prototype imaging variable kinetic energy electron analyzer in the range 0.1 to 8 keV for use with an X-ray excitation source. The imaging analyzer is to have a target imaging spatial resolution of 100 nm. The X-ray excitation source will be a synchrotron light source. The instrument can be described as an X-ray photoelectron spectroscopy (XPS) microsc ...

A volatile organic compound (VOC) detection system that is portable, sensitive to the low-ppb level, and able to provide reliable measurements in real time is needed for environmental compliance monitoring and process control in chemical plants. Recently, hand-held and battery-powered ppb-level VOC photoionization detectors (PID) have become commercially available. However, the presence of w ...

Development of a Compact Aerosol Instrumentation Suite for Unmanned Aerial Vehicles

There are over 480,000 trucks on US roads, and each vehicle produces up to 20 tons CO2, 420 lbs or CO, 11 lbs of particulates and 250 lbs of nitrous oxides per year, when idling, and producing auxiliary power needed for the drivers comfort. A Quiet Reliable and Compact Fuel Cell Based APU (QRCFC-APU) is proposed to significantly reduce these emissions. The QRCFC overcomes challenges with current ...

There are more than 480,000 trucks on U.S. roads, and each vehicle produces up to 20 tons CO2, 420 lbs of CO, 11 lbs of particulates, and 250 lbs of nitrous oxides per year, when idling, and producing auxiliary power needed for the driver’s comfort. A Quiet Reliable and Compact Fuel Cell Based APU (QRCFC-APU) is proposed to significantly reduce these emissions. The QRCFC overcomes challenges wit ...

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This is a Phase 2 proposal to develop an instrument to simultaneously measure particle size, velocity, and concentration in applications characterized by a large size range and high particle concentration. The instrument will be based on the Pulse Displacement Technique whose feasibility was demonstrated during Phase 1. Experiments performed during Phase 1 demonstrated a high accuracy in meas ...