![](https://nthumb.tpgimages.com/mid2_ocom_img/c2NpZW5jZV9waG90bw==/11/2008041620/top_20080416205556_2055.jpg/TOP03229249.jpg)
X-ray viewing machine. Historical artwork of the fluoroscope designed and built by the French inventor Eugene Ducretet (1844-1915). This device was used to examine postal packets and parcels using X-rays. It was built only a few months after Wilhelm Roentgen had discovered X-rays in 1895. The fluoroscope worked by using a screen coated with calcium fluoride to stop the X-rays and produce light instead. This production of light by atomic excitation is known as fluorescence. If an object being examined stopped the X-rays, then it would show up as a dark area on the glowing screen. Artwork from A Travers l'Electricite (G. Dary, Paris, 1900).
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Details
Creative#:
TOP03229249
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
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