Night-to-Night Calibration Checks at the High Resolution Fly's Eye Cosmic Ray Observatory
Abstract
The High Resolution (HiRes) Fly's Eye cosmic ray observatory is used to detect and study the highest energy particles. The Air Flourescene technique is utilized to perform measurements of the energies of the primary cosmic rays as well as determine the energy spectrum and composition of cosmic rays and search for anisotropy in arrival direction. Nightly, the relative calbration of the detector's 16,000+ photo-multiplier tubes is checked with a laser/fiber optic system. A review of the Air Flourescence detection technique and the associated physics will be presented along with a brief description of the HiRes detector. The design, construction, operation, and monitoring of the night-to-night calibration system will be discussed with an emphasis on the end-use of the nightly calibration check data.
- Publication:
-
APS April Meeting Abstracts
- Pub Date:
- April 2001
- Bibcode:
- 2001APS..APRC14008A