Year: 2025
Type: conference-paper
Abstract: The Cherenkov Telescope Array Observatory (CTAO) is the next-generation $\gamma$-ray observatory. CTAO foresees two observation sites, one located in the Northern Hemisphere (Canary Island of La Palma) and the other in the Southern Hemisphere (Atacama Desert in Chile), for observing $\gamma$-ray events coming from all over the celestial vault. Thanks to the CTA+ program, two Large-Sized Telescopes (LST) will be added to the baseline configuration of the CTAO Southern array of telescopes. The Cherenkov-imaging cameras of the LSTs are compounded of 1855 photomultiplier tubes (PMTs) covering a hexagonal area of around 4.5 m$^2$. Each camera is calibrated by a system, dubbed Camera Calibration Box (CCB) and placed at the center of the telescope mirror’s dish surface. The CCB illuminates the PMTs also during the observation time (100 Hz, interleaved flat-field events) with a uniform, intensity-selectable, and diffuse UV (355 nm) light. The CCB is especially designed to withstand the extremely harsh environmental conditions of the CTAO Southern site and to provide high accessibility and maintainability. This contribution presents the CCB's key and peculiar design characteristics, in particular the optical and the software interface design choices including the internal stable and high sensitivity photon flux monitoring system.
DOI: 10.22323/1.501.0792
Authors: Michele Palatiello, Marco Mastrofini, Andrea Busatta, Fabrizio Lucarelli, Francesco Dazzi, Lucio Angelo Antonelli, Alda Rubini, CTAO-LST Project
Language: English
Subfield: Instrumentation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funders: National Science Foundation, Sveučilište u Zagrebu, Comunidad de Madrid, Ministerio de Ciencia, Innovación y Universidades, Centres de Recerca de Catalunya, European Commission, Deutsche Forschungsgemeinschaft, Ministry of Education, Culture, Sports, Science and Technology, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Fundação de Amparo à Pesquisa do Estado de São Paulo, Ministerstvo Školství, Mládeže a Tělovýchovy, Bundesministerium für Bildung und Forschung, Generalitat de Catalunya, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Max-Planck-Gesellschaft, Narodowe Centrum Nauki, Hrvatska Zaklada za Znanost, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Fundação Araucária, Centre National de la Recherche Scientifique, Ministerio de Ciencia e Innovación, Istituto Nazionale di Astrofisica, Sveučilište Josipa Jurja Strossmayera u Osijeku, Junta de Andalucía, Ministério da Ciência, Tecnologia, Inovações e Comunicações, Istituto Nazionale di Fisica Nucleare, Japan Society for the Promotion of Science, Consejo Superior de Investigaciones Científicas, Staatssekretariat für Bildung, Forschung und Innovation, European Regional Development Fund, Agencia Estatal de Investigación, Institut National de Physique Nucléaire et de Physique des Particules, Institute for Cosmic Ray Research, University of Tokyo
Awards: G1059663884, G1089506725, G120905174, G1272927172, G1293671712, G1301723534, G1323383031, G1325701057, G1381791653, G1449231074, G1485410139, G176604203, G1767413778, G1888088267, G1953887145, G195395952, G196419191, G2030784793, G2209488408, G2233160401, G2309174360, G2313451655, G2507835933, G2554159582, Cherenkov Telescope Array - participation of the Czech Republic, G265847165, G2660406951, G2753747443, G278595929, G282847690, G291036901, G2988934680, Fermi gases in complex lattice structures: from Dirac points to Spin liquids, G302750986, G304813024, G3197651753, G3207356259, G3384621141, G3439265645, G3480869486, G348919436, G3490171961, G357246561, G3622461675, G363809202, G3690828678, G3715634343, G3735356012, G373897614, G3780874795, G3817602061, G3869365384, G393177772, G3978510197, G4087634877, G4104599821, G4238322289, G4317403835, G434337789, 癌細胞の遊離, 定着機構と転移抑制に関する研究, The Preparatory Phase for the Cherenkov Telescope Array
(CTA-PP), G463062595, G4760961572, G483893733, 原子炉による悪性皮膚腫瘍の選択的治療, G496129201, INtelligent Fast Interconnected and Efficient Devices for Frontier Exploitation in Research and Industry, G5011157824, G5080475149, G5243814431, Very-high-energy Gamma Ray Astronomy in the Multi-messenger Era, G529962013, G531036588, G545007060, G5555131222, G5641063287, G5662822759, G5702163051, G5845768719, G5894067328, G5915139351, G5916014575, Cherenkov Telescope Array: Infrastructure Development and Start of Implementation, G6033112984, G617610489, G6513613686, G6649312515, G6791753710, G6941735741, G7084143925, G7191602444, G7207111357, G7363506711, G7392162325, G7425137858, 古代説話における諸寺縁起の研究, G7805626310, G8079053745, G8347645112, G8373891351, G8546142835, G8639560392, G8684520763, G8752642921, G8792602865, G8920101981
OpenAlex ID: W4414530799
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