Evaluation method of optical filters used in fluorescence detectors

Geranios, AK; Fokitis, E; Maltezos, S; Petridis, A; Vassiliou, M

dc.contributor.author	Geranios, AK	en
dc.contributor.author	Fokitis, E	en
dc.contributor.author	Maltezos, S	en
dc.contributor.author	Petridis, A	en
dc.contributor.author	Vassiliou, M	en
dc.date.accessioned	2014-03-01T01:18:57Z
dc.date.available	2014-03-01T01:18:57Z
dc.date.issued	2003	en
dc.identifier.issn	0091-3286	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15283
dc.subject	Fluorescence detectors	en
dc.subject	Optical filters	en
dc.subject.classification	Optics	en
dc.subject.other	Cameras	en
dc.subject.other	Fluorescence	en
dc.subject.other	Light absorption	en
dc.subject.other	Photodetectors	en
dc.subject.other	Photomultipliers	en
dc.subject.other	Ultraviolet radiation	en
dc.subject.other	Fluorescence detectors	en
dc.subject.other	Optical filters	en
dc.title	Evaluation method of optical filters used in fluorescence detectors	en
heal.type	journalArticle	en
heal.identifier.primary	10.1117/1.1540973	en
heal.identifier.secondary	http://dx.doi.org/10.1117/1.1540973	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	A calculation method for evaluating UV optical filters, suitable for fluorescence detectors (FD), such as the one from the Auger Project and other similar cosmic ray observatory setups, is presented. We have considered the adopted geometry of a telescope based on a spherical mirror and a camera consisting of a photomultiplier pixel array. In the calculations, an angular weighting factor is introduced, which affects the results of the optical filter performance. Two optical filters, of the interference and absorption type, are evaluated using this method. Experimental measurements of the spectral transmittance of the filters for various angles of incidence are made by a double beam spectrophotometer. To calculate an overall performance, the most dominant spectral lines of the atmospheric fluorescence are used, modified by the atmospheric transmission coefficients. This performance is determined by the detection efficiency of the pixel detector (photomultiplier) with the optical filters used. (C) 2003 Society of Photo-Optical Instrumentation Engineers.	en
heal.publisher	SPIE-INT SOCIETY OPTICAL ENGINEERING	en
heal.journalName	Optical Engineering	en
dc.identifier.doi	10.1117/1.1540973	en
dc.identifier.isi	ISI:000181583800025	en
dc.identifier.volume	42	en
dc.identifier.issue	3	en
dc.identifier.spage	759	en
dc.identifier.epage	764	en