NDTnet 1998 Aug, Vol.3 No.8

Full-Text - Abstract

The need for tools
Much has been done and much still can be done to improve radiation safety performance where field-radiography is concerned. The PREDICT-approach focuses on ways of coping with this challenge. The need for improvement on one hand has its roots in external forces, like legislation and safety rules from third parties. On the other hand managers and operators within NDT-companies are committed to improve safety but lack sufficient tools to do so.

Dose-causation-process
To enable dose-control one needs a theoretical-model, which describes the dose-causation-process. It gives the necessary information such as where, when and how much exposure can be expected under which conditions, and most important of all which part can be prevented. With this information the most effective preventive measures can be expressed in quantitative figures and priorities for action can be determined.

Statistical indicators
Secondly one needs to know something about the past and actual performance. The statistical information can be deducted from dose monitoring data which reflects the actual exposure in the field. Within this system indicators are defined such that one can use them for performance-measuring.

Pre-active versus retro-active
Current safety management systems are mainly retro-active, which implies that one learns from past results. The PREDICT-approach tends to be more on the pre-active side of safety management. The main goals are controlling the operator-exposure and introduction of dose-prevention-programs. Joining the dose-causation-model with the statistical data enables one to set a target-area: 'which dose-reduction do we want to achieve in a certain future period ?'

Fig. No more ALARA-ca-dabra1

Abstract Source:
Book of Abstracts, 7th European Conference on Non-Destructive Testing, 26-29 May 1998, ISBN: 87-986898-0-00

Full-Text Source:
Proceedings of the 7th European Conference on Non-Destructive Testing, 26-29 May 1998, ISBN:

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