Practical radiography : a handbook for physicians, surgeons, and other users of X-rays (1901)
Isenthal, A. W, Ward, H. Snowden (Henry Snowden), 1865-1911 · London : Published for The Photogram, Ltd. by Dawbarn and Ward, Ltd. · leaf 44
in workable limits of temperature, we mustconnect several thermo-electric couples in series (similar togalvanic cells in series), that is, the antimony element ofeach couple to the bismuth element of the next couple.Such a combination constitutes a thermo-electric batteryor thermopile. In practice… … Fig. 9. the other junctions are either cooled artificially or are keptfairly cool by means of suitable radiating surfaces. Of themore successful constructions we will mention but one,that of Giilcher (Fig. 9), which consists of 66 individualcouples, heated by about fifty burners in the form of…
Radiography · X-rays
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