DESY: Software Development Support of the Array Control and Date Acquisition System (ACADA) Deliverables of DESY for CTA

DESY is one of the world's leading accelerator centres. Researchers use the large-scale facilities at DESY to explore the microcosm in all its variety. Zeuthen is (besides Hamburg) the second location of DESY, located in the south-eastern outskirts of Berlin. Since 2011, the DESY Zeuthen campus has been profiled as a globally visible center for astroparticle physics. DESY Zeuthen is involved in several international research projects in astroparticle physics. The Cherenkov Telescope Array (CTA) is the planned next generation observatory for ground-based very-high-energy gamma-ray astronomy [RD1]. In order to provide full sky coverage, CTA will consist of two large arrays with 118 Cherenkov telescopes in total, to be deployed in the Southern (Paranal, Chile) and Northern (La Palma, Spain) Hemispheres. The southern array will be sensitive to entire energy range of CTA. The northern array will focus on low- and mid-energy ranges. In addition to a large number of scientific instruments, CTA will comprise three types of telescopes covering different energy ranges: Small sized telescopes (SST) to cover the highest energy gamma-rays, medium sized telescopes (MST) to cover the core energy range of CTA and large sized telescopes (LST) sensitive to low-energy gamma-rays. The array control and data acquisition (ACADA) system will provide the functionality required: — to monitor and control all telescopes and auxiliary instruments in CTA; — to perform observations and calibration procedure; — to handle, filter and store data from all the telescope and auxiliary instruments; and — to produce status and quality reports.