1. Photoacoustics - A nondestructive evaluation technique for thermal and optical characterisation of metal mirrorsMohanachandran Nair Sindhu Swapna, NAMPOORI V P N, Sankararaman S, 2018, original scientific article Abstract: Photoacoustic technique has emerged as a powerful tool for nondestructive evaluation and characterization. The high signal to noise ratio, sensitivity, and the least quantity of sample required make the technique suitable for wide range of applications. The intensity modulated laser beam focused on to the sample in the photoacoustic cell generates acoustic waves. Analysis of the acoustic signal enables the measurement of thermal and optical properties of the material. In the present work, the photoacoustic technique has been extended to find the thermal diffusivity and to demonstrate how the technique can be used for measuring optical reflection coefficient of a precious metal mirror—Aranmula mirror. The mirror being metal with high reflection coefficient, it finds application in optical instrumentation. The mirror is subjected to morphological characterization by atomic force microscopy and field emission scanning electron microscopy. The elemental and structural characterizations are done by energy dispersive x-ray spectroscopy, X-ray dot mapping, and X-Ray diffraction analysis. The fractal dimension of the particle distribution over the surface provides information about the surface roughness. The box-counting and power spectral fractal dimensions are found to be around 1.63 and 1.65 respectively. Keywords: Photoacoustics, Nondestructive evaluation, Aranmula metal mirror, Reflectivity Published in RUNG: 30.06.2022; Views: 2969; Downloads: 0 This document has many files! More... |
2. Jezero : 3D vizualizacija podatkov o literarnih avtoricahNarvika Bovcon, Aleš Vaupotič, artistic work Keywords: Sylvia Plath, Mirror, vizualizacija podatkov, 3D tisk, 3D skeniranje, tipografija, srebrna skulptura, miniatura, portret Published in RUNG: 03.07.2017; Views: 5439; Downloads: 0 |
3. Construction of a Medium-Sized Schwarzschild-Couder Telescope for the Cherenkov Telescope Array: Implementation of the Cherenkov-Camera Data Acquisition SystemM. Santander, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), double-mirror Schwarzschild-Couder medium-size telescopes
(MST-2M) for CTA, data acquisition system Published in RUNG: 02.03.2017; Views: 5130; Downloads: 253
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4. Software design for the control system for Small-Size Telescopes with single-mirror of the Cherenkov Telescope ArrayA. Porcelli, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), single-mirror Small-Size Telescopes (SST-1M) for CTA, SST-1M control system, software design Published in RUNG: 02.03.2017; Views: 5276; Downloads: 180
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5. Monte Carlo Studies of the GCT Telescope for the Cherenkov Telescope ArrayThomas Armstrong, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), GCT: a dual-mirror small-size telescope (SST-2M) design for CTA, Monte Carlo performance studies Published in RUNG: 16.02.2017; Views: 4737; Downloads: 209
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6. Flasher and muon-based calibration of the GCT telescopes proposed for the Cherenkov Telescope ArrayAnthony M. Brown, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), dual mirror small-size telescope (SST-2M, GCT) design for CTA, optical throughput calibration, flasher-based calibration, muon ring images Published in RUNG: 26.01.2017; Views: 4676; Downloads: 249
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7. Using muon rings for the optical throughput calibration of the SST-1M prototype for the Cherenkov Telescope ArrayS. Toscano, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), single mirror small-size telescope (SST-1M) design for CTA, optical throughput calibration, muon ring images Published in RUNG: 26.01.2017; Views: 4794; Downloads: 225
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8. Camera calibration strategy of the SST-1M prototype of the Cherenokov Telescope ArrayE. Prandini, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Keywords: Cherenokov Telescope Array (CTA)
single mirror small-size telescope (SST-1M) design for CTA, camera calibration Published in RUNG: 24.01.2017; Views: 4664; Downloads: 233
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9. Developments of a new mirror technology for the Cherenkov Telescope ArrayJerzy Michałowski, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), mirror technology for CTA, cold-slumping, front reflecting aluminium-coated panel Published in RUNG: 16.01.2017; Views: 4731; Downloads: 255
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10. Recent developments for the testing of Cherenkov Telescope Array mirrors and actuators in TübingenJ. Dick, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), mirrors, actuators, mirror control alignment Published in RUNG: 16.01.2017; Views: 4270; Downloads: 217
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