Concept

High-intensity discharge lamp

Related publications (120)

Clinical evaluation of a method for detecting superficial transitional cell carcinoma of the bladder by light-induced fluorescence of protoporphyrin IX following topical application of 5-aminolevulinic acid: Preliminary results

BACKGROUND AND OBJECTIVE: In bladder cancer, conventional white light endoscopic examination of the bladder does not provide adequate information about the presence of "flat" urothelial lesions such as carcinoma in situ. In the present investigation, we ex ...

1997

Cylindrical fiberoptic light diffuser for medical applications

Hubert van den Bergh

BACKGROUND AND OBJECTIVE: A cylindrical light diffuser has been developed mainly for medical applications, including photodynamic therapy (PDT), in particular interstitial PDT, PDT of the bronchi, or intravascular PDT. STUDY DESIGN/MATERIALS AND METHODS: T ...

1996

Usefulness of fluorescence photodetection of neoplastic urothelial foci in bladder cancer following intravesical instillation of delta-aminolevulinic acid (5-ALA)

Hubert van den Bergh, Georges Wagnières

An excellent knowledge of histopathological risk factors of superficial bladder transitional cell carcinoma is mandatory to establish the prognosis of the disease. Presence or absence of carcinoma in situ (CIS) in superficial bladder cancer is one of the m ...

1996

Consistency between Experimental Data for Ambipolar Diffusion Length and for Photoconductivity when Incorporated into the Standard Defect Model for a-Si:H

Arvind Shah

Reasonable consistency between experimental data for the ambipolar diffusion length and experimental data for the photoconductivity is demonstrated for steady-state measurements performed on a-Si:H layers. This consistency is obtained based on the ''standa ...

1995

High-speed laser chemical vapor deposition of copper: a search for optimum conditions

Hubert van den Bergh

The photothermal laser-induced chem. vapor deposition of Cu was studied as a function of the writing speed, the light intensity, and the diam. of the focal spot on the substrate, at three different pressures of the Cu bishexafluoroacetylacetonate precursor ...

1989

Group delay measurement in single-mode fibers with true picosecond resolution using double optical modulation

Luc Thévenaz

Highly accurate group delay measurements in long single-mode fibers were achieved over the full 1200-1600 nm spectral range by measuring phase shifts of a modulated lightwave. The high modulation frequency is shifted down to the kilohertz range using a sec ...

1988

Structure and formation of metal film deposited by laser-induced dissociation

Hubert van den Bergh, René Monot

Sn and Pt films were laser deposited on a quartz plate or C membrane supports by using light-induced thermal dissocn. and photodissocn. of SnMe4 and bis(hexafluoroacetylacetonato)platinum, resp. An Ar laser (l = 514.5, 455.5, 257.3 nm) and a Hg lamp (l = 2 ...

1984

Mesures de températures ioniques dans un plasma de brève durée à l'aide d'un interféromètre de Fabry-Pérot multicanal

This work describes ion temperature measurements made by means of Doppler line broadening in a rotating magnetic field pinch experiment. A 12-channel Fabry-Perot interferometer has been constructed and profiles of various helium and impurity lines were mea ...

[s.n.]1971

High-power modular LED-based illumination systems for mask-aligner lithography

Hans Peter Herzig, Toralf Scharf, Johana Bernasconi

Mask-aligner lithography is traditionally performed using mercury arc lamps with wavelengths ranging from 250 nm to 600 nm with intensity peaks at the i, g and h lines. Since mercury arc lamps present several disadvantages, it is of interest to replace the ...

A field study investigation on the influence of light level on subjective thermal perception in different seasons

Marilyne Andersen, Jan Wienold, Luisa Pastore, Giorgia Chinazzo

This paper evaluates the influence of light levels (i.e., illuminance) on subjective thermal perception of people, distinguishing between thermal sensation and thermal evaluation. The goal is to investigate whether reported effects found by other studies i ...

NCEUB 20180

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