A simple light intensity monitor device in optical modulation spectroscopy

Autor:	C Felici, C Ranghiasci
Rok vydání:	1973
Předmět:	Physics Photomultiplier business.industry Detector General Engineering General Physics and Astronomy Differential amplifier High voltage Phototube Wavelength Light intensity Optics Modulation General Materials Science business Instrumentation
Zdroj:	Journal of Physics E: Scientific Instruments. 6:1183-1185
ISSN:	0022-3735
Popis:	A simple electronic light intensity monitor device has been built for a photomultiplier which is used as a detector in a reflection modulation experiment. The system consists of a differential amplifier. This varies the high voltage applied to the phototube, so that a plot of Delta R/R against wavelength is obtained, which only needs to be modified by a scaling factor. An electroreflectance spectrum of gallium selenide, obtained by the servo system, is also shown.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::78754f8ebcb299cff2c03410e708d6eb https://doi.org/10.1088/0022-3735/6/12/013 Zobrazit plný text záznamu