Machining program creating device for keyway milling for wire electric discharge machine
US-2015367436-A1 · Dec 24, 2015 · US
Multilayer, multiaperture collimator for medical imaging and fabrication method
US8957397B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8957397-B2 |
| Application number | US-201213586910-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 16, 2012 |
| Priority date | Sep 26, 2011 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
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A photon collimator, suitable for use in medical imaging equipment, is constructed from a block of photon-attenuating material, such as solid tungsten or molybdenum alloy that defines a plurality of integrally formed septa slats. Each slat has an elongated length dimension greater than thickness and depth dimensions, and is oriented in an opposed pattern array that is laterally spaced relative to its respective thickness dimension. An aperture channel is defined between each pair of opposed slats. Rows of integrally formed slats in one block or separately affixed blocks may be stacked on each other at skewed angles to form two-dimensional grids of apertures having polygonal cross sections. The slats may be formed by electric discharge or laser thermal ablation machining, such as by a sequential passing of an EDM wire cutting head along the pattern array, repeating sequential cutting of respective channel depth and width.
First claim
Opening claim text (preview).
What is claimed is: 1. A photon collimator, comprising: a monolithic block of absorptive photon-attenuating material having upper and lower opposite sides, the sides respectively having length and width, the monolithic block defining first and second pluralities of uninterrupted integrally formed continuous planar septa slats across the entire block length of a respective opposite block side; each slat in each respective first and second slat plurality having an elongated length…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
Physics · mapped topic
- B23H9/00Primary
Operations & Transport · mapped topic
Cross-Sectional Technologies · mapped topic
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- What does patent US8957397B2 cover?
- A photon collimator, suitable for use in medical imaging equipment, is constructed from a block of photon-attenuating material, such as solid tungsten or molybdenum alloy that defines a plurality of integrally formed septa slats. Each slat has an elongated length dimension greater than thickness and depth dimensions, and is oriented in an opposed pattern array that is laterally spaced relative …
- Who is the assignee on this patent?
- Malmin Ronald E, Siemens Medical Solutions
- What technology area does this patent fall under?
- Primary CPC classification B23H9/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).