New generation of medical light sources based on tungsten halogen incandescent lamps

1994 ◽  
Vol 28 (6) ◽  
pp. 355-362
Author(s):  
A. A. Churkin ◽  
M. M. Veprintseva ◽  
Yu. N. Filippovskii ◽  
A. B. Pokrovskii ◽  
P. M. Rudakov
Author(s):  
M. Inguscio ◽  
F. S. Cataliotti ◽  
C. Fort ◽  
F. S. Pavone ◽  
M. Prevedelli
Keyword(s):  

Author(s):  
Dr. R. Thillaikkarasi ◽  
Sindhuja R ◽  
Sivabharati M ◽  
Abira Bright ◽  
Sreejith V

Optics has, since ancient times, being used as aid for the exam human patients and in some therapeutic treatments. Many of the optic medical instruments in use today were developed in the nineteenth century and, with the advent of optical fibers and laser light sources in the mid twentieth century, a new generation of medical devices, instruments, and techniques have been developed that have helped modernize medicine and perform task unimaginable only a few decades ago. This chapter illustrates through several optical instrument and application examples the uses, benefits, and future prospects that optics brings as an enabling technology to the medicine and the overall healthcare industry.


Author(s):  
E. A. Kuznetsov ◽  
N. P. Nesterkina ◽  
Yu. A. Zhuravleva ◽  
S. A. Mikaeva

The article provides a technical and economic comparison of costs when covering 10 classrooms of a general educational institution with LED and fluorescent lamps for a period of 10 years. The main advantage of led light sources is the high level of light output compared to traditional light sources. Replacing incandescent lamps and gas-discharge ICS with led ICS can significantly reduce energy costs. Currently, led ICS are increasingly replacing traditional ICS due to their high energy efficiency and safety. For comparison, luminescent lamps LVO04-4x14-031 and LED lamps DVO12-45-003 produced by JSC “Ardatovsky lighting plant” with a comparable light flux and light distribution were selected. The number of lamps in the 65 m2 auditorium was chosen based on the normalized illumination of 500 Lux on a horizontal work surface (0.8 m). The calculation of the number of lamps that meet all the requirements for lighting in General and higher educational institutions was carried out in the DiaLux 4.13 program. According to preliminary calculations, lighting with led lamps will reduce energy costs over 10 years by 2.16 times compared to fluorescent lamps. The maximum expenses are spent on the purchase of new led lamps. This is mainly due to the higher price of led lighting devices compared to fluorescent ones.


2015 ◽  
Vol 22 (3) ◽  
pp. 577-583 ◽  
Author(s):  
Gabriel Blaj ◽  
Pietro Caragiulo ◽  
Gabriella Carini ◽  
Sebastian Carron ◽  
Angelo Dragone ◽  
...  

Free-electron lasers (FELs) present new challenges for camera development compared with conventional light sources. At SLAC a variety of technologies are being used to match the demands of the Linac Coherent Light Source (LCLS) and to support a wide range of scientific applications. In this paper an overview of X-ray detector design requirements at FELs is presented and the various cameras in use at SLAC are described for the benefit of users planning experiments or analysts looking at data. Features and operation of the CSPAD camera, which is currently deployed at LCLS, are discussed, and the ePix family, a new generation of cameras under development at SLAC, is introduced.


2016 ◽  
Vol 62 (2) ◽  
pp. 203-209
Author(s):  
Ryszard S. Romaniuk

Abstract Free electron laser FELs are built in Europe mainlyB as nondependent infrastructures, or as a development of synchrotron ones. They are constructed mainly in centres which have considerable experience with synchrotron light sources of the third generation like DESY, Trieste, INFN, etc. Advances in very energetically efficient superconducting linear accelerators for electron beams, like TESLA type, caused an abrupt development of FEL machines all over Europe. New generation of FELs emits light beam of extreme intensity, good parameters, in IR, VIS, UV, EUV and X-ray spectral regions. The machine construction teams comprise also of young active researchers from Poland. In particular, these is a considerable participation of M.Sc. and Ph.D. students from Warsaw University of Technology at building of FLASH I, FLASH II, and EXFEL machines. Unique experiences gathered at work with these large experiments result in development of these young teams, and their further engagement in new initiatives: laser, laser – accelerator, inertial, plasma, plasma – energy, etc. This is what we observe with satisfaction. However, due to the lack of large research infrastructures in Poland, we are not members of the infrastructure owner clubs. Our young researchers may take part in the initiatives only indirectly as members of cooperative teams from the leading countries. As a further consequence, there is also a confined access of Polish laser and accelerator researchers to some kinds of European infrastructure development projects now under realization within the H2020.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
D. M. Di Paola ◽  
P. M. Walker ◽  
R. P. A. Emmanuele ◽  
A. V. Yulin ◽  
J. Ciers ◽  
...  

AbstractUltrafast nonlinear photonics enables a host of applications in advanced on-chip spectroscopy and information processing. These rely on a strong intensity dependent (nonlinear) refractive index capable of modulating optical pulses on sub-picosecond timescales and on length scales suitable for integrated photonics. Currently there is no platform that can provide this for the UV spectral range where broadband spectra generated by nonlinear modulation can pave the way to new on-chip ultrafast (bio-) chemical spectroscopy devices. We demonstrate the giant nonlinearity of UV hybrid light-matter states (exciton-polaritons) up to room temperature in an AlInGaN waveguide. We experimentally measure ultrafast nonlinear spectral broadening of UV pulses in a compact 100 μm long device and deduce a nonlinearity 1000 times that in common UV nonlinear materials and comparable to non-UV polariton devices. Our demonstration promises to underpin a new generation of integrated UV nonlinear light sources for advanced spectroscopy and measurement.


2014 ◽  
Vol 21 (5) ◽  
pp. 912-936 ◽  
Author(s):  
Michael Borland ◽  
Glenn Decker ◽  
Louis Emery ◽  
Vadim Sajaev ◽  
Yipeng Sun ◽  
...  

Third-generation low-emittance storage-ring light sources based on double- and triple-bend cells and undulator magnets have been in operation around the world for more than two decades. On the horizon is a new generation based on the multi-bend achromat (MBA) lattice concept promising two to three orders of magnitude higher brightness than is available in today's sources. In this paper, the challenges inherent in designing MBA lattices, as well as potential solutions, are described. Topics covered include lattice concepts, scaling of storage-ring performance, brightness optimization, nonlinear dynamics, beam lifetime and injection schemes.


2013 ◽  
Vol 765-767 ◽  
pp. 213-216
Author(s):  
Wen Qing Shi ◽  
Zheng Ye Xiong ◽  
Yong Qiang Li ◽  
Cun You Huang

Aiming at the high energy-consuming characteristics of Chinese marine fishery, the application of LED in Chinese marine fishery is analyzed. It has remarkable energy-saving effect if the fishing style of trawling is replaced by light-seine fishing, and the gathering-fish lamps of metal halide lamps or incandescent lamps are replaced by LED light sources. The conversion of the trawlers to light-seine vessel and widespread use of LED light sources will lead to cut down energy consumption and increase the economic benefits. Based on rough calculation, it can make Chinese fisherfolk increase income about hundreds of millions of dollars and reduce more than millions of tons CO2 emission if the conversion of the trawlers to light-seine vessel and the replacement of metal halide lamps or incandescent lamps to LED light sources can reach 20% of all. Moreover, LED light source can use for general lighting purpose in marine fishery. All of these will cause the development of the correlative industries. For instance, the market demand of LED is very vast.


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