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, objavljeni znanstveni prispevek na konferenci Opis: 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. Najdeno v: ključnih besedah Ključne besede: Pierre Auger Observatory, extensive air showers, the Fluorescence Detector, atmospheric monitoring, vertical aerosol optical depth, the Central Laser Facility, the eXtreme Laser Facility Objavljeno: 03.03.2016; Ogledov: 3897; Prenosov: 170
Polno besedilo (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, objavljeni znanstveni prispevek na konferenci Najdeno v: ključnih besedah Ključne besede: Cherenkov Telescope Array (CTA), Large Size Telescopes (LST), optical system, active mirror control system Objavljeno: 21.03.2016; Ogledov: 3597; Prenosov: 205
Polno besedilo (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, izvirni znanstveni članek Najdeno v: ključnih besedah Ključne besede: optical fibers, Germanium, doping, cathodoluminescence, irradiation effect Objavljeno: 11.04.2016; Ogledov: 4685; Prenosov: 0
Polno besedilo (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, objavljeni znanstveni prispevek na konferenci Najdeno v: ključnih besedah Ključne besede: 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 Objavljeno: 21.11.2016; Ogledov: 3544; Prenosov: 230
Polno besedilo (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, objavljeni znanstveni prispevek na konferenci Najdeno v: ključnih besedah Ključne besede: Cherenkov Telescope Array (CTA), small-size telescope design for CTA, dual-mirror Schwarzschild-Couder optical design, silicon photomultiplier (SiPM) based camera Objavljeno: 04.01.2017; Ogledov: 3726; Prenosov: 218
Polno besedilo (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, objavljeni znanstveni prispevek na konferenci Najdeno v: ključnih besedah Ključne besede: Cherenkov Telescope Array (CTA), small-size telescope (SST) for CTA, Davies-Cotton single-mirror design, optical system Objavljeno: 04.01.2017; Ogledov: 3217; Prenosov: 186
Polno besedilo (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, objavljeni znanstveni prispevek na konferenci Najdeno v: ključnih besedah Ključne besede: Cherenkov Telescope Array (CTA), medium-size telescopes (MST) for CTA, Schwarzschild-Couder telescope design, optical alignment system Objavljeno: 11.01.2017; Ogledov: 3228; Prenosov: 209
Polno besedilo (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, objavljeni znanstveni prispevek na konferenci Najdeno v: ključnih besedah Ključne besede: Cherenkov Telescope Array (CTA), medium-size telescopes (MST) for CTA, Schwarzschild-Couder telescope design, optical system Objavljeno: 11.01.2017; Ogledov: 3095; Prenosov: 229
Polno besedilo (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, objavljeni znanstveni prispevek na konferenci Najdeno v: ključnih besedah Ključne besede: Cherenkov Telescope Array (CTA), single mirror small-size telescope (SST-1M) design for CTA, optical throughput calibration, muon ring images Objavljeno: 26.01.2017; Ogledov: 3045; Prenosov: 210
Polno besedilo (377,42 KB) |