DCT Trigger for a Detection of Very Inclined Showers in the Pierre Auger Surface Detector Engineering Array in the new High-Resolution Front-End Based on the Cyclone V FPGA

• Autorzy: Zbigniew Szadkowski
• Języki publikacji: EN

Abstrakty

EN

The paper presents the first results from the trigger based on the Discrete Cosine Transform (DCT) operating in the new Front-End Boards with Cyclone V FPGA deployed in 8 test surface detectors in the Pierre Auger Engineering Array. The patterns of the Analog-to-Digial Converter (ADC) traces generated by very inclined showers were obtained from the Auger database and from the CORSIKA simulation package supported next by OffLine reconstruction Auger platform which gives a predicted digitized signal profiles. Simulations for many variants of the initial angle of shower, initialization depth in the atmosphere, type of particle and its initial energy gave a boundary of the DCT coefficients used next for the on-line pattern recognition in the FPGA. Preliminary results have proven a right approach. We registered several showers triggered by the DCT for 120 MSps and 160 MSps. (original abstract)

Słowa kluczowe

EN

Physics

PL

Fizyka

• Czasopismo: Annals of Computer Science and Information Systems
• Rocznik: 2015
• Tom: 5
• Strony: 701--708

Twórcy

autor

Zbigniew Szadkowski

• University of Łódź, Poland

Bibliografia

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• Z. Szadkowski, K.-H. Becker, K.-H. Kampert, "Development of a new first level trigger for surface array in the Pierre Auger Observatory based on the CycloneTM Altera R FPGA", Nucl. Instr. Meth., ser. A, vol. 545, pp. 793-802, June 2005. DOI: 10.1016/j.nima.2005.03.118
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Identyfikatory

DOI

10.15439/2015F159