Monitoring the image quality in a microscope

Volkova, Maria A.; Litvinovich, Alexander; Mel’nikov, K. I.; Natarovskii, S. N.

doi:10.1364/jot.76.000609

Cited by 1 publication

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“…In contrast to [19] where a transparent mesh electrode was used for illuminating large areas, we collected the light in the direction perpendicular to the electrodes (see figure 1). This allowed for increasing the depth of the radiating layer in the line of sight and thus to improve the radiation power [20].…”

Section: Discharge Vessel and Power Supplymentioning

confidence: 99%

A Miniaturized XeCl Dielectric Barrier Discharge as a Source of Short Lived, Fast Decaying UV Radiation

Bussiahn¹,

Pipa²,

Kindel³

2010

Contrib. Plasma Phys.

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A dielectric barrier discharge (DBD) of coaxial geometry has been examined as source of intensive, short-lived UV radiation. A binary gas mixture consisting of 98% Xe + 2% Cl2 and a ternary composition of 96% Ne + 6% Xe + 0.2% HCl were investigated in the pressure range between 10 and 750 mbar. The discharge was excited by unipolar high voltage square pulses with amplitudes of 3 to 7 kV at a repetition rate of 100 Hz. UV radiation intensity is increased by combining 5 square pulses with a period of 1 μs each in one train (burst). Radiation decay on three orders of magnitude within 10 μs was obtained for both gas mixtures in burst mode. Maximum energy of the light pulse was the same for both gas mixtures and estimated as 40 nJ. It is shown that the optimum gas pressure for highest radiation intensity depends not only on gas composition but also on applied voltage and number of pulses in the train. A variation of the spectral band shape of XeCl emission during the pulse is detected.

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Section: Discharge Vessel and Power Supplymentioning

confidence: 99%