8-cm radioheliograph

Details 8-cm radioheliograph 8-cm radioheliograph

Mar 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975nuria..22....1i&link_type=abstract

Nagoya University, Research Institute of Atmospherics, Proceedings, vol. 22, Mar. 1975, p. 1-25.

Computer Science

1

Antenna Arrays, Data Processing Equipment, Design Analysis, Microwave Equipment, Numerical Control, Spectroheliographs, Antenna Design, Computer Systems Design, Frequency Scanning, High Resolution, Radio Interferometers, Solar Observatories, Solar Radio Bursts

Scientific paper

An 8-cm radioheliograph which has been under construction since 1972 is almost completed. It has a maximum resolving power of 1.5 arc min and can be operated in various operational modes combined with the existing high-resolution compound interferometer. The minimum time necessary for taking a map is 40 seconds. A two-dimensional mapping will be used whenever necessary by interrupting one-dimensional quick-scanning observations of the radio bursts with the E-W and N-S interferometers. Phase errors in the brightness distributions of the sun can be corrected through computer processing. For the study of active regions, slower scanning modes are available simultaneously with the existing 3-cm radioheliograph. A small computer system with a 32 K words of memory is installed for the scanning control, data acquisition and data processing.

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