Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1192 for “"Spectrometer"”.
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A neutron diffraction spectrometer
A single crystal neutron spectrometer using a copper crystal has been designed and constructed for the purpose of studying the low energy (<1 ev) neutron spectrum from the V.P.I. reactor. The basic theory necessary for the design, the details of the spectrometer, calibration data and method of …
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A fast neutron spectrometer
A fast neutron spectrometer was designed and constructed using a proton-recoil telescope. Recoil protons from a thin foil of polyethylene were detected with a silicon surface-barrier diode. The output pulse from the detector is proportional to the energy of the protons and hence the energy of the …
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Calibration of the infrared spectrometer
LD2668 .T4 1948 C65
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A new compact neutron spectrometer
A new compact neutron spectrometer has been designed, developed and characterized. The detector is based on EJ299-33 plastic scintillator coupled to silicon photomultipliers, and a digital implementation of pulse shape discrimination is used to separate events associated with neutrons from those …
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High Speed Fiber Optic Spectrometer
… model of a novel high speed fiber optic spectrometer (HSFOS). In addition, the performance analysis is conducted and preliminary experimental results are listed and discussed. Such a spectrometer is highly desired by the ever-increasing applications of fiber optic sensors. In the recent …
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White mica: spectrometer design, district-scale mapping, and integration of imaging spectrometer and lidar data
… The dissertation comprises three parts: 1) spectrometer design, 2) district-scale mapping, and 3) integration of imaging spectrometer and lidar data. White micas are common products of hydrothermal alteration associated with mineral deposits. A review of spectral studies conducted at a …
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An Automated Arc/flame Spectrometer System
Made available in DSpace on 2014-12-13T20:09:54Z (GMT). No. of bitstreams: 1 7624210.pdf: 9156507 bytes, checksum: 781c96871cbb527682c6998712356fa6 (MD5) Previous issue date: 1976
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Development of a quadrupole mass spectrometer
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1964.
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Visible spectrometer utilizing organic thin film absorption
In this thesis, I modeled and developed a spectrometer for the visible wavelength spectrum, based on absorption characteristics of organic thin films. The device uses fundamental principles of linear algebra to reconstruct spectral components of a signal from the transmission through an organic …
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NEREUS Nemertes : embedded mass spectrometer control system
… suite to control an embedded autonomous mass spectrometer. I first evaluate previous control systems for the hard- ware and evaluate a set of software design goals. The NSystem software builds upon the previous functionalities by offering text-file based scheduling and subroutines, as well as …
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High current coaxial ion beam/laser beam spectrometer
The construction and operation of a new apparatus for making spectroscopic investigations of molecular ions is described. In the new ion beam machine, the ion beam and laser beam overlap in a coaxial geometry. The machine has much higher ion current than an apparatus previous used. The laser beam …
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MINIATURE MASS SPECTROMETER SYSTEM WITH A SAMPLING PROBE
… systems and the sampling probes. Mass spectrometers are usually installed and used in the analytical laboratory. It requires complex sample preparation before the analysis. Use of miniature mass spectrometer enables the chemical analysis outside the lab and a sampling probe provides …
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