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US 9,508,522 B2Granted
X-ray generator including heat sink block
AssigneesSamsung Electronics Co., Ltd., SRI International
InventorsShang-hyeun Park, Paul R. Schwoebel, Il-hwan Kim, Do-yoon Kim, Yong-chul Kim, Chang-soo Lee, Tae-won Jeong
Life of this patent
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Abstract
An x-ray generator includes a housing, a cathode block that is arranged in the housing and emits electrons via a field emission scheme, an anode block that is arranged in the housing and generates x-rays in response to the electrons emitted from the cathode block and collide with the anode block, and a heat sink block that contacts the cathode block and dissipates heat generated therein to an outside of the housing.
Claims16
An x-ray generator comprising:
- a housing;
- a cathode block which is arranged in the housing and emits electrons via a field emission scheme;
- an anode block which is arranged in the housing and generates x-rays in response to the electrons which are emitted from the cathode block and collide with the anode block;
- and
- a heat sink which contacts the cathode block and disperses heat generated therein to an outside of the housing,
- wherein the cathode block comprises:
- a cathode electrode;
- a plurality of emitters arranged on the cathode electrode;
- a mesh-type gate electrode spaced apart from the cathode electrode;
- an insulating layer arranged between the cathode electrode and the mesh-type gate electrode and comprising a plurality of gate spacers which are alternately arranged with the emitters;
- and
- a charge prevention film arranged on the insulating layer, and
- wherein the charge prevention film prevents the insulating layer from being electrically charged by electrons generated by the emitters, and
- wherein a portion of the heat sink is exposed to the outside of the housing.
11 more elements
Dependencies are inferred from the claim text.