Light distribution of optical fiber diffusers in turbid medium derived from air-based measurement methods
- Interstitial photodynamic therapy (iPDT) treats malignant brain cancer cells by irradiation with low power laser light. The light is guided into the human body by diffuse emitting fibers. This study targets the light distribution of optical diffusers within the brain tissue. It was shown, that by submerging an optical diffuser into human brain phantom, its radiation profile measured in air converges towards a Gaussian distribution with increasing phantom depth. A camera method using digital averaging filters as well as an integrating sphere setup, both, smoothing the diffuser radiation profile were applied onto the evaluated diffuser.
Author: | Stephan Ströbl, Christian Freymüller, Matthias Domke, Ronald Sroka |
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Parent Title (English): | VII International Symposium Topical Problems of Biophotonics 2019. Proceedings. 27-21 July, 2019. Nizhniy Novgorod - Uglich - Nizhniy Novgorod |
Document Type: | Conference Proceeding |
Language: | English |
Year of publication: | 2019 |
Release Date: | 2019/12/18 |
First Page: | 269 |
Last Page: | 270 |
Organisationseinheit: | Forschung / Forschungszentrum Mikrotechnik |
DDC classes: | 600 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften und Maschinenbau / 621 Angewandte Physik |
Publicationlist: | Domke, Matthias |
Ströbl, Stephan |