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Open Access Green as soon as Postprint is submitted to ZB.
Light monitoring by isotropic and by integrated fiber detectors.
Proc. SPIE 1201, 320-326 (1990)
In the medical field of laser light application detector systems are required for measuring the light power applied to the tissue and monitoring instabilities caused by the delivery system during the application of the laser light. An isotropic detector was developed consisting of a fiber tip molded to a sphere and covered with diffuse backscattering layers. The homogeneity of the isotropic detection is 85-90% in an angular field of ±160°C. Additionally a monitoring device has been developed which consists of a darkened chamber holding a part of the fiber bent to a curve. Integrated photodiodes detect the photons 'stepping' out of the fiber. Defects of the fiber, the fiber tip, changes in the medium around the fiber tip, and variations of the laser output have influences on the detector signal. Both devices could be useful in evaluating an exact dosimetry for light.
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Publication type
Article: Journal article
Document type
Scientific Article
ISSN (print) / ISBN
0277-786X
e-ISSN
1996-756X
Journal
Proceedings of SPIE
Quellenangaben
Volume: 1201,
Pages: 320-326
Publisher
SPIE
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Laser laboratory (ZLL)