A small air-shower array at Mount Chacaltaya
Creators
- 1. Tokyo Inst. of Tech. (Japan). Dept. of Physics
- 2. Department of Physics, Okayama University, Okayama 700 (Japan)
- 3. Faculty of General Education, Ehime University, Matsuyama, Ehime 790 (Japan)
- 4. The Institute of Physical and Chemical Research, Wako, Saitama 351-01 (Japan)
- 5. Faculty of General Education, Fukui University of Technology, Fukui 910 (Japan)
- 6. Nagoya University of Foreign Studies, Nissin, Aichi 470-01 (Japan)
- 7. STE Laboratory, Nagoya University, Nagoya, Aichi 464 (Japan)
- 8. National Astronomical Observatory, Mitaka, Tokyo 181 (Japan)
- 9. Instituto de Investigaciones Fisicas, Universidad Mayor de San Andres, La Paz (Bolivia)
Description
We have operated a small air-shower array at Mount Chacaltaya in Bolivia since September 1987 and have observed air showers with primary energies above 2.0.1013 eV. This array consists of thirty-three unshielded scintillation detectors and a shielded scintillation detector. The unshielded detectors are installed over an almost flat field of approximately 8.103m2 area, while the shielded detector is located at the array center. In the present paper, we report both the details and the operation of this array and the analysis method for the observed data. Furthermore, we have simulated air showers with a Monte Carlo technique. Then, analyzing these air showers, we examine the performance of our array, that is, the accuracy in determination of the electron sizes and the arrival directions of observed air showers. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Journal Volume
- 373
- Journal Issue
- 2
- Journal Page Range
- p. 282-289.
- ISSN
- 0168-9002
- CODEN
- NIMAER
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 27048361
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- ACCURACY; ANGULAR DISTRIBUTION; COSMIC RAY DETECTION; COUNTING CIRCUITS; DATA ANALYSIS; DATA PROCESSING; ENERGY SPECTRA; EXTENSIVE AIR SHOWERS; HODOSCOPES; LOGIC CIRCUITS; MONTE CARLO METHOD; PEV RANGE; SCINTILLATION COUNTERS; SPATIAL DISTRIBUTION
- Descriptors DEC
- CALCULATION METHODS; COSMIC RADIATION; COSMIC SHOWERS; DETECTION; DISTRIBUTION; ELECTRONIC CIRCUITS; ENERGY RANGE; IONIZING RADIATIONS; MEASURING INSTRUMENTS; RADIATION DETECTION; RADIATION DETECTORS; RADIATIONS; SECONDARY COSMIC RADIATION; SHOWERS; SPECTRA