Silicon Photomultiplier Characterization and Minimization of Cross-talk to Enable Radiation Detection in Harsh Environments
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Fritchie, Jacob Wesley↗
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Results for “PHOTOMULTIPLIERS”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Exploring AlGaInP for use in Si photomultiplier analogs
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Anderson, Evan Michael↗
Improved design provides faster response time in photomultiplier
Dynamic Crossed-Field Electron Multiplying /DCFEM/ light demodulator avoids the normal response time limitations inherent in static field devices by using time varying crossed electric and static magnetic fields. This eliminates the transit time spread that affects electrons as they proceed along the secondary emission stages of the tube.
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System measures response time of photomultiplier tubes
Calibration system enables precise determination of rise time of photosensitive detectors. To perform a calibration, the time-voltage curve of the excitation voltage for a light source is compared with the time-voltage curve of the voltage output from a photosensitive detector which is responding to the light.
Lauver, M. R.↗
Signal conditioner circuit for photomultiplier tube
Miniaturized circuit improves measurement of radiation dose absorbed in a scintillation crystal. The temperature coefficient of the field-effect transistor gate-source voltage in the isolation amplifier can be readily controlled.
Cellier, A.↗
Optical enhancement of photomultiplier sensitivity
Transmission and reflection light losses are reduced by introducing light into end-window of device at an angle large enough to normal so total internal reflection occurs at both photocathode-vacuum and window-air interfaces.
Grant, G. R.↗
Advanced infrared photomultiplier
Photocathode for the 8500 angstrom through 9000 angstrom range, improving efficiency by an order of magnitude, is achieved with a gallium arsenide cesium oxide photocathode. Protection of the GaAs surface from contamination during bake-out is another important function.
Sonnenberg, H.↗
Some recent developments in photomultipliers for scintillation counting
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Matheson, R. M.↗
Low-cost, compact, cooled photomultiplier assembly for use in magnetic fields up to 1400 Gauss
Use of vortex tube for cooling and concentric shielding have produced smaller and more compact unit than was previously available. Future uses of device could include installation in gas chromatographs and mass spectrometers. Additional uses would include measurements and controls in magnetohydrodynamic power generators and fusion reactors.
Patch, R. W.↗
Development of photomultiplier electronics and computer interfacing software for a high speed photoelectric photometer-Stoke's meter
Preliminary stages in the design, construction, and development of a photoelectric photometer system interfaced with an IMSAI 8080 microcomputer. The instrument will also include magnetic tape and magnetic disk storage capabilities to enable rapid data storage. The capability of the instrument to make observations with very high time resolution, as high as 10 msec, and measure the intensity and polarization of radiation emitted by objects which show very rapid light variations, pulsars and optical counterparts of X-ray sources was of concern. A better understanding of the magnetic fields and interstellar material which characterize the immediate environment of these stellar systems and an expansion of the observational capabilities of even modest-sized telescopes are expected.
Flesch, T. R.↗
A statistical model of the photomultiplier gain process with applications to optical pulse detection
A Markov diffusion model was used to determine an approximate probability density for the random gain. This approximate density preserves the correct second-order statistics and appears to be in reasonably good agreement with experimental data. The receiver operating curve for a pulse counter detector of PMT cathode emission events was analyzed using this density. The error performance of a simple binary direct detection optical communication system was also derived.
Tan, H. H.↗
A statistical model of the photomultiplier gain process with applications to optical pulse detection
A Markov diffusion model was used to determine an approximate probability density for the random gain. This approximate density preserves the correct second-order statistics and appears to be in reasonably good agreement with experimental data. The receiver operating curve for a pulse counter detector of PMT cathode emission events was analyzed using this density. The error performance of a simple binary direct detection optical communication system was also derived. Previously announced in STAR as N82-25100
Tan, H. H.↗
Detector Timing and Photomultiplier Tube Selection
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Winkelbauer, Jack↗
Characterizing the Temperature Dependence of Silicon Photomultipliers and Scintillators.
Abstract not provided.
Sweany, Melinda↗
A novel neutron time-of-flight spectrometer based on multi-element silicon photomultipliers.
Abstract not provided.
Vaughan, Jacquelynne↗
Silicon Photomultiplier readout solutions for organic scintillator assemblies .
Abstract not provided.
Sweany, Melinda↗
Phase II Final Technical Report | Neutron Dose Tolerant Solid-State Photomultiplier for Nuclear Imaging | Award Number DE-SC0021560 | Prepared for U.S. Department of Energy, Office of Science, SC-1 | For the Period April 4, 2022 – April 3, 2024 | Report Date July 31, 2024 | Submitted by Erik Johnson, Ph.D., Principal Investigator | Report Contributors Erik Johnson, Radiation Monitoring Devices, Inc., 44 Hunt Street, Watertown, MA 02472
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Johnson, Erik↗