Abstract: The disclosed method measures the distance between two arbitrary points of interest from the user position by determining the range and angle between the two points. To measure the angle between the two points, a first method uses a micro-opto-electro-mechanical scanner to form a scan line between the two points of interest. A scan angle is determined based on the applied AC voltage needed to cause the endpoints of the scan line to coincide with the points of interest. The second method, an image-processing method, is applied to determine the angles between the points of interest. A Microprocessor uses captured images including the points of interest to determine the angle between the points. In both methods, the Microprocessor calculates the distance between the two points of interest by using the determined angle, together with the measured ranges and sends the calculated distance to a display.

Abstract: The primary objective of the present method and apparatus is to provide a portable and new diagnosis system for quickly and reliably examining tissue conditions. The method uses the most advance miniaturized micro-opto-electro-mechanical systems (MOEMS) system for generating a rapid variable optical delay line capable of generating wideband terahertz pulses. The method detects and analyzes cancerous tissues by comparing a plurality of spectrum resolved images of suspected tissue without applying harmful agents into the tissue to facilitate interaction with illumination sources. The method employs non-evasive, real time terahertz imaging systems and techniques to diagnose tissue for detecting the presence of cancer. A map showing, which tissue is healthy and which is cancerous can aid in the accurate removal of cancerous tissue.

Abstract: A method of wave propagation from 100–10000 GHz. The currently disclosed method and apparatus adapts micro-opto-electro-mechanical systems (MOEMS) technologies and processes to construct Kinoform optical components from microwave to terahertz range. The method uses induced coupled plasma (ICP) and gray scale processes for upper terahertz band; LIGA-based high aspect ratio (HAR) and gray scale processes are for the mid band; and computer numerical control (CNC) for lower band. In all cases, the thickness of any processed components is about the respective wavelength and system efficiency is about 95%. A Kinoform lens element is designed at 5000 GHz. However, the method is applicable for the entire terahertz band.

Abstract: Electromagnetic waves in wide frequency ranges up to photonics have been used for applications to time-domain imaging (TDI). Realistic time domain imaging requires a rapid optical delay line on the order of 100 ps with sampling rate at least 100 Hz. Present available optical time delay systems suffer either from low sampling rate or low time delay length, deviating from ideal requirements. The purpose of this invention is to introduce a miniature and rapid scanning optical delay line based on micro-opto-electro-mechanical system (MOEMS) technology to improve the data acquisition in time domain imaging, capable of sampling rate beyond 100 Hz and time delays beyond the 100 ps.

Abstract: Techniques and devices for diagnosing tissue via hyperspectral imaging are presented. A three dimensional "image" where one dimension contains spectral information is formed from a region of interest. The spectral content of the image can be analyzed on a pixel-by-pixel basis to determine the presence of certain matter and the spatial extend thereof The techniques are non-invasive and do not require introduction of agents typically required to facilitate interaction with illumination sources.

Abstract: A radioisotope production facility (12) produces radioisotopes having application to Positron Emission Tomography. The radioisotopes produced include .sup.18 F, .sup.13 N, .sup.15 O, and .sup.11 C, and are produced by irradiating a selected target material (40) with a high energy .sup.3 He.sup.++ beam accelerated in a radio frequency quadruple (RFQ) linear accelerator (34). The facility includes, in addition to the RFQ linear accelerator and the selected target, a source of .sup.3 He.sup.++ ions (30), low energy transport means (32) for focusing the .sup.3 He.sup.++ beam into the RFQ linear accelerator, and a high energy transport means (36) for directing the accelerated .sup.3 He.sup.++ beam at the selected target. Further included is a target subsystem (16) that holds the target, automatically prepares precursors containing the .sup.18 F, .sup.13 N, .sup.15 O, and .sup.