A Photoelectric Photometer Employing an Electron Counting Technique
نویسندگان
چکیده
منابع مشابه
OPTIMA: A Photon Counting High-Speed Photometer
OPTIMA is a small, versatile high-speed photometer which is primarily intended for time resolved observations of young high energy pulsars at optical wavelengths. The detector system consists of eight fiber fed photon counters based on avalanche photodiodes, a GPS timing receiver, an integrating CCD camera to ensure the correct pointing of the telescope and a computerized control unit. Since Ja...
متن کاملMeasurements of Photon Beam Flattening Filter Using an Anisotropic Analytical Algorithm and Electron Beam Employing Electron Monte Carlo
Introduction: This study aimed to report the measurement of photon and electron beams to configure the Analytical Anisotropic Algorithm and Electron Monte Carlo used in clinical treatment. Material and Methods: All measurements were performed in a large water phantom using a 3-dimensional scanning system (PTW, Germany). ...
متن کاملAn evaluation of photoelectric haemoglobinometers.
A number of photoelectric haemoglobinometers have been evaluated as to their suitability for haemoglobinometry in the routine clinical laboratory. They have been tested for accuracy, precision, linearity of response, instrument comparability and, where relevant, for carry-over. The advantages and defects of each are described.
متن کاملAn adult image identification system employing image retrieval technique
As the development of the Internet, children are easily exposed on the pornography through web browsers. To block adult images, content-based image retrieval technique is employed for adult image identification. First, the background is removed to obtain the rectangular region of interesting based on the detection of skin-like pixels. For each input image, the MPEG-7’s color, texture, and the p...
متن کاملImproved susceptibility disk assay method employing an agar overlay technique.
Susceptibility disks impregnated with 35 different antibiotics were assayed by the current Code of Federal Regulations method and by a new method employing an agar overlay. The new method, a simplified analytical procedure, exhibited improvement in zone definition and an increase in dose response. Assays performed by the new method were accurate and precise. The agar overlay technique appears t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1948
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/108.6.476