The Evaluation and Use of a Portable TEPC System for Measuring In-flight Exposure to Cosmic Radiation
| Autor: | R. Hunter, R. D. Bentley, G C Taylor, D J Thomas, T. J. Conroy, J. B. L. Jones, A. Pond |
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| Rok vydání: | 2002 |
| Předmět: |
Neutrons
Radiation Radiological and Ultrasound Technology business.industry X-Rays Member states Public Health Environmental and Occupational Health Crew Civil aviation Cosmic ray General Medicine Space Flight United Kingdom Aeronautics Calibration Environmental science Radiology Nuclear Medicine and imaging Radiometry Instrument design Nuclear medicine business Cosmic Radiation |
| Zdroj: | Radiation Protection Dosimetry. 99:435-438 |
| ISSN: | 1742-3406 0144-8420 |
| Popis: | A recent EC directive has called for all member states to introduce legislation covering the assessment and restriction of air crew exposure to cosmic radiation. In the UK the Civil Aviation Authority, in conjunction with the Department of the Environment. Transport and the Regions issued guidelines suggesting the use of a predictive code such as CARI for this purpose. In order to validate the use of calculated route doses, an extensive programme of measurements is being carried out on long haul routes in conjunction with Virgin Atlantic Airways, using a prototype HAWK TEPC developed by Far West Technology. This programme began in January 2000 and by the end of February 2001 had resulted in the accumulation of data from 74 flights. In this paper the instrument design is discussed, together with the calibration programme. An overview of the in-flight results is also presented, including comparisons between measurements and calculations, which indicates that CARI under-predicts the route doses by approximately 20%. |
| Databáze: | OpenAIRE |
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