High performance interactive graphics for shower reconstruction in HPC, the DELPHI barrel electromagnetic calorimeter

Conference · Wed Aug 01 00:00:00 EDT 1990 · AIP Conference Proceedings (American Institute of Physics); (USA)

OSTI ID:5768098

Stanescu, C ^[1]

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1. INFN-Sanita, Rome (Italy)

Complex software for shower reconstruction in DELPHI barrel electromagnetic calorimeter which deals, for each event, with great amounts of information, due to the high spatial resolution of this detector, needs powerful verification tools. An interactive graphics program, running on high performance graphics display system Whizzard 7555 from Megatek, was developed to display the logical steps in showers and their axes reconstruction. The program allows both operations on the image in real-time (rotation, translation and zoom) and the use of non-geometrical criteria to modify it (as the use of energy) thresholds for the representation of the elements that compound the showers (or of the associated lego plots). For this purpose graphics objects associated to user parameters were defined. Instancing and modelling features of the native graphics library were extensively used.

• OSTI ID: 5768098
• Report Number(s): CONF-9004190-; CODEN: APCPC; TRN: 91-014844
• Journal Information: AIP Conference Proceedings (American Institute of Physics); (USA), Vol. 209:1; Conference: Conference on computing in high energy physics, Santa Fe, NM (USA), 9-13 Apr 1990; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
HIGH ENERGY PHYSICS
CALORIMETRY
SHOWER COUNTERS
DESIGN
ALGORITHMS
COMPUTER CODES
DATA ACQUISITION SYSTEMS
DATA ANALYSIS
DEC COMPUTERS
NUMERICAL DATA
COMPUTERS
DATA
INFORMATION
MATHEMATICAL LOGIC
MEASURING INSTRUMENTS
PHYSICS
RADIATION DETECTORS
440104* - Radiation Instrumentation- High Energy Physics Instrumentation