X-ray Module Heat Radiating Unit for FOD Reduction
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Solution Overview
Problem
Existing X-ray modules face challenges in reducing the focus-to-object distance (FOD) while effectively radiating heat generated in the target, leading to increased FOD and potential damage due to heat buildup.
Innovation Solution
The X-ray module incorporates a transmission type configuration with a protrusion on the housing, allowing the target to be positioned close to the X-ray-emitting window, and a heat radiating unit extending along the surface and thermally connected to the target, utilizing a heat sink and cooling unit to efficiently radiate heat without increasing FOD.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the target is disposed close to the X-ray-emitting window to reduce FOD, then the magnification ratio increases and imaging brightness improves, but heat generated in the target cannot be effectively radiated
Solution Approach 1:
The heat radiating unit extends in the radial direction (another dimension) rather than occupying axial space. This allows heat dissipation without increasing FOD, as the heat radiation function is added in a different spatial dimension perpendicular to the electron beam path.
Solution Approach 2:
The heat radiating unit is divided into a first portion (extending along the surface in the radial direction) and a second portion (extending in the axial direction), creating a three-dimensional heat dissipation structure that efficiently radiates heat from multiple directions without interfering with the compact axial arrangement.
2Temperature
If a heat radiating unit is added to effectively radiate heat from the target, then heat radiation improves, but the FOD increases
Solution Approach 1:
The heat radiating unit primarily extends in the radial direction (first portion) rather than the axial direction, utilizing space in another dimension that does not contribute to FOD. This resolves the contradiction by providing effective heat radiation while maintaining a compact axial profile.
Solution Approach 2:
The heat radiating unit is strategically positioned and shaped to provide localized heat dissipation where needed, with the first portion extending radially along the surface to maximize heat radiation efficiency without adding axial length that would increase FOD.
3Illumination intensity
If the target is disposed close to the X-ray-emitting window, then imaging brightness improves, but heat buildup causes target damage
Solution Approach 1:
The invention converts the harmful heat buildup into a manageable thermal field by providing dedicated heat radiation paths through the heat radiating unit. This allows the target to operate at high power levels needed for bright imaging while the heat is actively dissipated, preventing damage.
Solution Approach 2:
The heat radiating unit acts as an intermediary between the target and the environment, providing a dedicated thermal management system that mediates the heat transfer process. This allows the target to maintain close proximity to the window for bright imaging while the intermediary heat radiating unit handles the thermal load.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration reduces FOD, enhances heat radiation, and stabilizes X-ray output by effectively managing heat generated in the target, preventing damage and ensuring consistent imaging performance.
Implementation Method 1
a heat radiating unit disposed outside the housing... the heat radiating unit includes a first portion extending along the surface and thermally connected to the surface
Implementation Method 2
heat radiation by the heat radiating unit can be improved
Implementation Method 3
an electron gun that emits an electron beam inside the housing
Implementation Method 4
a target that includes an electron-incident surface and an X-ray-emitting surface opposite the electron-incident surface, and that transmits an X-ray generated when the electron beam is incident on the electron-incident surface
Data Source
AI summary
An X-ray module includes a housing in which an opening portion is formed; an electron gun that emits an electron beam; a target that transmits an X-ray generated when the electron beam is incident on the target and emits the X-ray from an X-ray-emitting surface; an X-ray-emitting window that seals the opening portion, and that transmits the X-ray and emits the X-ray to a first side in an axial direction; and a heat radiating unit disposed outside the housing. The housing includes a surface on which a protrusion protruding to the first side is formed, the opening portion is formed in the protrusion, and the target is disposed in the opening portion. The heat radiating unit includes a first portion extending along the surface and thermally connected to the surface, and a second portion extending from the first portion to a second side opposite the first side.