Spatial resolution measurements of gallium arsenide microstrip detectors

Spatial Resolution Measurements of Gallium Arsenide Microstrip Detectors

Results are reported from beam test measurements of one of the first commercial prototype gallium arsenide microstrip detectors. The detector consisted of 128 strips on a 50μm pitch, with a wafer thickness of 200μm. Operating at a bias of 180V, the detector produced a signal to noise ratio of 19 to 1, with a particle detection efficiency of better than 99%. The spatial resolution of the detecto...

Measurements of spatial resolution of ATLAS Pixel detectors

Standard as well as irradiated silicon pixel detectors developed for the ATLAS experiment were tested in a beam. Digital and analog resolutions were determined comparing the positions measured by a microstrip telescope and by the pixel detector. Digital resolutions of 10 μm and analog resolutions of 6 μm (before irradiation) and 10 μm (after irradiation) are obtained without subtracting the err...

Analytical and Experimental Procedures for Determining Propagation Characteristics of Millimeter-Wave Gallium Arsenide Microstrip Lines

Gallium Arsenide - Based Readout Electronics

The readout of detector arrays requires the monolithic or hybrid integration of a integrate circuit multiplexer with the detector array. In most LWIR and VLWIR applications, a hybrid approach is used. For example, the detector array may be built from HgCdTe and the readout integrated circuit may be silicon CMOS [1]. The two integrated circuits are mated through a bump-bonding process in which e...

GALLIUM ARSENIDE 1. Exposure Data

1.1.3 Chemical and physical properties of the pure substance (a) Description: Grey, cubic crystals (Lide, 2003) (b) Melting-point: 1238 °C (Lide, 2003) (c) Density: 5.3176 g/cm (Lide, 2003) (d) Solubility: Insoluble in water (Wafer Technology Ltd, 1997); slightly soluble in 0.1 M phosphate buffer at pH 7.4 (Webb et al., 1984) (e) Stability: Decomposes with evolution of arsenic vapour at tempera...