dysprosium

Some isotopes of dysprosium are effective absorbers of thermal neutrons and are being considered for use in the control rods in nuclear reactors.
Certains de ses isotopes absorbent les neutrons thermiques et sont utilisés dans les barres de contrôle des réacteurs nucléaires.
Some isotopes of dysprosium are effective absorbers of thermal neutrons and are being considered for use in the control rods in nuclear reactors.
Certains de ses isotopes absorbent les neutrons thermiques et sont utilisés dans les barres de contrôle des réacteurs nucléaires. PROPRIÉTÉS PHYSIQUES
It is always found in combination with other rare earths, being found in small quantities in the same minerals as dysprosium (gadolinite, fergusonite and xenotime); its abundance in the Earth's crust is 3.8 ppm.
On le rencontre toujours associé à d'autres terres rares, en faible quantité, et dans les mêmes minéraux que le dysprosium (gadolinite, fergusonite et xénotime) sa quantité dans la croûte terrestre est de 3,8 ppm.
The abundance in the Earth's crust of dysprosium is 6 ppm.
Sa quantité dans la croûte terrestre est de 6 ppm.
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