1. Studies in the atmospheric monitoring at the Pierre Auger Observatory using the upgraded Central Laser Facilitymarko zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, Carlos Medina-Hernandez, 2015, published scientific conference contribution Abstract: The Fluorescence Detector (FD) at the Pierre Auger Observatory
measures the intensity of the scattered light from laser tracks
generated by the Central Laser Facility (CLF) and the eXtreme
Laser Facility (XLF) to monitor and estimate the vertical
aerosol optical depth (τ(z,t)). This measurement is needed to
obtain unbiased and reliable FD measurements of the arrival
direction and energy of the primary cosmic ray, and the depth
of the maximum shower development. The CLF was upgraded
substantially in 2013 with the addition of a solid state laser,
new generation GPS, a robotic beam calibration system, better
thermal and dust isolation, and improved software. The upgrade
also included a back-scatter Raman LIDAR to measure τ(z,t).
The new features and applications of the upgraded instrument
are described. These include the laser energy calibration
and the atmospheric monitoring measurements. The first τ(z,t)
results and comparisons after the upgrade are presented using different methods. The first method compares the FD hourly
response to the scattered light from the CLF (or XLF) against
a reference hourly profile measured during a clear night where
zero aerosol contents are assumed. The second method simulates
FD responses with different atmospheric parameters and selects the parameters that provide the best fit to the actual FD
response. A third method uses the new Raman LIDAR receiver
in-situ to measure the back-scatter light from the CLF laser.
The results show a good data agreement for the first and second
methods using FD stations located at the same distance from the
facilities. Preliminary results of τ(z,t) using the Raman LIDAR
are presented as well.
Found in: ključnih besedah
Keywords: Pierre Auger Observatory, extensive air showers, the Fluorescence Detector, atmospheric monitoring, vertical aerosol optical depth, the Central Laser Facility, the eXtreme Laser Facility
Published: 03.03.2016; Views: 3975; Downloads: 175
 Fulltext (3,96 MB) |
2. The Optical System for the Large Size Telescope of the Cherenkov Telescope Arraymarko zavrtanik, Danilo Zavrtanik, Gabrijela Zaharijas, Lili Yang, Serguei Vorobiov, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, M. Hayashida, published scientific conference contribution Found in: ključnih besedah
Keywords: Cherenkov Telescope Array (CTA), Large Size Telescopes (LST), optical system, active mirror control system
Published: 21.03.2016; Views: 3659; Downloads: 208
Fulltext (1,10 MB) |
3. Gamma and x-ray irradiation effects on different Ge and Ge/F doped optical fibersAziz Boukenter, N. Richard, Marco Cannas, Claude Marcandella, Layla Martin-Samos, Simonpietro Agnello, Diego Di Francesca, Mattia Fanetti, Imene Reghioua, Sylvain Girard, Antonino Alessi, Youcef Ouerdane, 2015, original scientific article Found in: ključnih besedah
Keywords: optical fibers, Germanium, doping, cathodoluminescence, irradiation effect
Published: 11.04.2016; Views: 4764; Downloads: 0
Fulltext (1,35 MB) |
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5. Performance of the Mechanical Structure of the SST-2M GCT proposed for the Cherenkov Telescope ArrayMarko Zavrtanik, Danilo Zavrtanik, Gabrijela Zaharijas, Lili Yang, Serguei Vorobiov, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, Jean-Laurent Dournaux, 2015, published scientific conference contribution Found in: ključnih besedah
Keywords: Cherenkov Telescope Array, small-size telescope (SST) design for CTA, dual-mirror (2M) Schwarzschild-Couder optical design, Gamma Cherenkov Telescope (GCT): SST-2M telescope design, mechanical structure
Published: 21.11.2016; Views: 3602; Downloads: 234
Fulltext (422,88 KB) |
6. INFN Camera demonstrator for the Cherenkov Telescope ArrayMarko Zavrtanik, Danilo Zavrtanik, Gabrijela Zaharijas, Lili Yang, Serguei Vorobiov, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, G. Ambrosi, 2015, published scientific conference contribution Found in: ključnih besedah
Keywords: Cherenkov Telescope Array (CTA), small-size telescope design for CTA, dual-mirror Schwarzschild-Couder optical design, silicon photomultiplier (SiPM) based camera
Published: 04.01.2017; Views: 3791; Downloads: 222
Fulltext (1,61 MB) |
7. Development of the optical system for the SST-1M telescope of the Cherenkov Telescope Array observatoryMarko Zavrtanik, Danilo Zavrtanik, Gabrijela Zaharijas, Lili Yang, Serguei Vorobiov, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, K. Seweryn, 2015, published scientific conference contribution Found in: ključnih besedah
Keywords: Cherenkov Telescope Array (CTA), small-size telescope (SST) for CTA, Davies-Cotton single-mirror design, optical system
Published: 04.01.2017; Views: 3277; Downloads: 190
Fulltext (978,78 KB) |
8. Construction of a medium-sized Schwarzschild-Couder telescope as a candidate for the Cherenkov Telescope Array: development of the optical alignment systemMarko Zavrtanik, Danilo Zavrtanik, Gabrijela Zaharijas, Lili Yang, Serguei Vorobiov, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, D. Nieto, 2015, published scientific conference contribution Found in: ključnih besedah
Keywords: Cherenkov Telescope Array (CTA), medium-size telescopes (MST) for CTA, Schwarzschild-Couder telescope design, optical alignment system
Published: 11.01.2017; Views: 3290; Downloads: 212
Fulltext (2,50 MB) |
9. Construction of a Schwarzschild-Couder telescope as a candidate for the Cherenkov Telescope Array: status of the optical systemMarko Zavrtanik, Danilo Zavrtanik, Gabrijela Zaharijas, Lili Yang, Serguei Vorobiov, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, J. Rousselle, 2015, published scientific conference contribution Found in: ključnih besedah
Keywords: Cherenkov Telescope Array (CTA), medium-size telescopes (MST) for CTA, Schwarzschild-Couder telescope design, optical system
Published: 11.01.2017; Views: 3149; Downloads: 233
Fulltext (2,31 MB) |
10. Using muon rings for the optical throughput calibration of the SST-1M prototype for the Cherenkov Telescope ArrayMarko Zavrtanik, Danilo Zavrtanik, Gabrijela Zaharijas, Lili Yang, Serguei Vorobiov, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, S. Toscano, 2015, published scientific conference contribution Found in: ključnih besedah
Keywords: Cherenkov Telescope Array (CTA), single mirror small-size telescope (SST-1M) design for CTA, optical throughput calibration, muon ring images
Published: 26.01.2017; Views: 3111; Downloads: 214
Fulltext (377,42 KB) |
