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Si Photovoltaic Semiconductor Devices Operating in Total and Partial Illumination

100%

Leţ D., Cimpoca V., Stancu A., Fluieraru C., Bacinschi Z.

Acta Physica Polonica A

2012

vol. 121

issue 1

65-67

Power photovoltaic applications, as photovoltaic power plants or building integrated photovoltaic systems, are mainly built using parallel or serial photovoltaic modules strings. Daily usage of such systems usually produces non-uniform string connected behavior due to partial or total shading. In these conditions, less illuminated cells transform into power receivers, thus producing supplementary losses and local panel heating. This phenomenon, called hot-spot, may evolve into producing zonal or total destruction of the solar modules. For these purposes this paper will submit to your attention simulation and experimental results of the partial and total illumination phenomenon, targeting specific information in the effect evaluation of any photovoltaic panel.

Special X-Ray Silicon Detectors for Medical Applications

73%

Halmagean E., Wagner D., Tsoi E., Misiakos K., Ohanisian M., Veron A., Cimpoca V., Lazarovici D.

Acta Physica Polonica A

1997

vol. 91

issue 4

789-792

The paper presents some results concerning the technology and behaviour of X-ray silicon detectors intended for controlling low radiation levels in interventional cardiology. An improved planar process was used for obtaining large area guard-ring test structures. The electrical characteristics, their modification after exposure to radiation and the results of spectroscopic X-ray measurements are discussed.

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2 Acta Physica Polonica A

1 2012

1 1997

2 Cimpoca V.

1 Bacinschi Z.

1 Fluieraru C.

1 Halmagean E.

1 Lazarovici D.

1 Leţ D.

1 Misiakos K.

1 Ohanisian M.

1 Stancu A.

1 Tsoi E.

1 Veron A.

1 Wagner D.

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Si Photovoltaic Semiconductor Devices Operating in Total and Partial Illumination

Special X-Ray Silicon Detectors for Medical Applications