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Description: The Beta backscatter technique for estimating eggshell strength first described by James and Retzer (2) and James et al. (3) is the only method published to date in which the egg is not tested mechanically or immersed in salt solutions. If the technique estimates shell thickness, one of the factors controlling shell strength, it may find application in commercial grading because it is feasible to automate this method. The radiation backscattered by the shell was found highly correlated with shell strength deter mined by impact from a falling steel ball (2, 3, 6). These data, however, were biased because the height from which the ball dropped was pre-estimated from the backscatter reading. Backscatter readings were also significantly correlated with shell thickness. Later work (1, 5) indicated that backscatter readings estimated shell strength, as measured by destructive and non-destructive quasi-static compression tests, with only limited precision. The estimate of thickness however was comparable to that obtained from the specific gravity of the egg-The purpose of the work here was to further investigate the backscatter technique and examine some of the factors affecting its performance.
Keywords: factors affecting the performance of the beta backscatter eggshell measurement
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Citation: Voisey, Peter W. and Paul E. James 1970. FACTORS AFFECTING THE PERFORMANCE OF THE BETA BACKSCATTER EGGSHELL MEASUREMENT. Canadian Agricultural Engineering 12(1):48-51.
Volume: 12
Issue: 1
Pages 48 - 51
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Date: 1970
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Coverage: Canada
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