Microscopic imaging of properties of room-temperature objects

Details Microscopic imaging of properties of room-temperature objects Microscopic imaging of properties of room-temperature objects

G - Physics

01

B

G01B 7/28 (2006.01) G01B 11/24 (2006.01) G01N 15/00 (2006.01)

Patent

CA 2246303

A cryogenic apparatus for microscopy of physical properties of an object including a thin, stiff, transparent substrate or window (28) within the outer wall of the vacuum space (18) of a dewar and a cryogenic sensor (72) within the vacuum space and spaced very close distances to the window (28). This construction allows for positioning a sample for measurement outside of the vacuum space, at room temperature or higher and for microscopy of physical properties of the sample (91) by monitoring the output from the cryogenic sensor as it is scanned along the surface of the sample (91).

L'invention concerne un appareil cryogénique pour l'examen microscopique des propriétés physiques d'un objet, lequel comprend un substrat ou une fenêtre (28) mince, rigide et transparent dans la paroi extérieure de l'espace mis sous vide (18) d'un dewar, ainsi qu'un capteur cryogénique (72) placé dans ledit espace tout près de la fenêtre (28). Cette configuration permet de placer, au fin de mesure, un échantillon à l'extérieur de l'espace sous vide, à la température ambiante ou à des températures supérieures, pour l'examen microscopique des propriétés physiques de l'échantillon (91), l'opération consiste à recueillir les indications fournies par le capteur cryogénique lorsque celui-ci est balayé le long de la surface de l'échantillon (91).

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