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Insights into Imaging

Table 2 Electrical transformation efficiency (α) of inductor with various interrupters (Additional file 1: ES VII)

From: The skin dose of pelvic radiographs since 1896

 

Coil itself

mechanical

mercury

Wehnelt

Transformation efficiency α

0.60

0.45

0.50

0.17

Estimated variability

0.20

0.25

0.20

0.07

  1. α is power available to the load of the secondary circuit divided by that spent in the primary circuit of the inductor (including interrupter)
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