Imaging sensors and readout electronics have made tremendous strides in the past two decades. The application of modern semiconductor fabrication techniques and the introduction of customized monolithic integrated circuits have made large scale imaging systems routine in high energy physics. This technology is now finding its way into other areas, such as space missions, synchrotron light sourc...

The measurement of radioactivity deposited in the lung is often performed with an array of germanium detectors placed over the chest of the individual. The detector array size can be from four to eight detectors depending on the size of the germanium detector and Dewar assembly. Typically, large area diameter germanium detectors (70 mm diameter) consist of four detectors, and the larger arrays ...

This work presents the results from characterization of a Position-Sensitive Planar Germanium (PSPGe) detector. The PSPGe detector is double-sided orthogonal strip consisting 10x10 electrical segmentation along horizontal and vertical directions. was performed using coincidence setup between well-characterized scanning system employing positron annihilation correlation principle. consists Posit...

The Jet Propulsion Laboratory (JPL) has a long history in the development and application of infrared detector technology for the exploration of our planetary system. We will describe some recent applications of IR detector technology at JPL for ground based astronomy, the Earth Observing System, the Cassini Mission to Saturn and the other proposed planetary missions. The infrared detector tech...

We present the design, manufacturing, and testing of a 37-element array corrugated feedhorns for Cosmic Microwave Background (CMB) measurements between $140$ $170$ GHz. The was designed to be coupled Kinetic Inductance Detector arrays, either directly (for total power measurements) or through an orthomode transducer polarization measurements). manufactured in platelets by chemically etching alu...

The open-source software package SolidStateDetectors.jl to calculate the fields and simulate drifts of charge carriers in solid state detectors, together with corresponding pulses, is introduced. can perform all calculations full 3D while it also make use detector symmetries. effect surroundings a be studied. programmed user friendly performance oriented language Julia, such that field drift si...

PURPOSE The most common metric for comparing measured to calculated dose planes is a pass rate generated using percent difference, distance-to-agreement (DTA), or some combination of the two (e.g. gamma evaluation). The grid of analyzed points often corresponds to a dosimeter array with low areal-density of point detectors. This work examines the statistical uncertainty of planar dose compariso...

Taking inspiration from eukaryotic cilia, we report a method for growing dense arrays of magnetically actuated microscopic filaments. Fabricated from the bottom-up assembly of polymer-coated cobalt nanoparticles, each segmented filament measures approximately 5–15 mm in length and 23.5 nm in diameter, which was commensurate with the width of a single nanoparticle. A custom microscope stage actu...

In this paper, a new method is proposed for calibrating a planar array of general geometry with respect to errors in location, phase and gain, even when all errors are present simultaneously (global calibration). The method requires the use of three pilot sources, which operate one at a time and from at least two different azimuth angles. Since the sources need not operate simultaneously, one o...

Linear and planar antenna arrays are synthesized to have maximum directivity for a specified sidelobe level. The directivity is maximized subject to a given SLL. The beamwidth and the zeros of array factor are studied as well as the directivity. Maximum directivity-arrays are compared through some examples with super-directive, uniform, Dolph-Chebyshev and Riblet-Chebychev arrays to find a comp...