Ditemukan 3 dokumen yang sesuai dengan query
Nasir Saleh
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A concept of phase space is usable to evaluate the characteristics of various components in microoptics engineering. In this study, a microoptical branching circuit by the use of three identical micro lenses has been constructed, for the purpose of dividing an input light beam into two outputs transmission and reflection beams, respectively.
Mode distribution of input and output beams is, represented by using phase space configuration. By computer simulation, the concept of phase space has been ...
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Depok: Universitas Indonesia, 1988
T-Pdf
UI - Tesis Membership Universitas Indonesia Library
Sunarto
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A fluorescence spectrometer, with gating PMT (Photo Multiplier Tube) has been designed and constructed for the observation of Time Resolved Spectroscopy. Employed as a source far the fluorescence spectrometer a pulsed N2 lasers with about 5-nanosecond pulse width and 400-kilowatt power. Gating PMT carries out the sampling. In this method some of the dynodes of the PMT are being biased at voltages below normal operating voltage, while the other dynodes are held at their normal ...
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Depok: Fakultas Teknik Universitas Indonesia, 1988
T-Pdf
UI - Tesis Membership Universitas Indonesia Library
Lamyarni I. Sardy
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In detection of breast cancer using mammography, accurate diagnosis often depends on the visibility of small low contrast objects within the breast image. This is even more critical in the case of small tumor detection at early stage. Radiographic examination including mammography, have reduced the contrast and visibility of small objects. Due to the high X-ray penetration of the objects scattered radiation, and the limited capability of the film to develop maximum contrast over an ...
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Depok: Universitas Indonesia, 1988
T-Pdf
UI - Tesis Membership Universitas Indonesia Library
