Collimator for nuclear medical equipment and method of manufacturing the same
A technology of medical equipment and collimator, which is applied in the direction of using diaphragm/collimator, X-ray/γ-ray/particle irradiation therapy, etc. It can solve the problem of small bonding area, unstable bonding, and easy falling off of corrugated plates, etc. problem, to achieve the effect of enriching structural features and improving collimation effect
Active Publication Date: 2018-03-30
WUHAN ZHIWEI TECH CO LTD
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Problems solved by technology
Due to the small bonding area of this bonding method, it is easy to lead to unstable bonding, and the corrugated plate is easy to fall off, causing the structure of the collimator to collapse.
Method used
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[0036] In order to facilitate a better understanding of the purpose, technical features and effects of the present invention, the present invention will be further explained in conjunction with the accompanying drawings and specific embodiments.
[0037] A kind of collimator 100 used for nuclear medical equipment provided by the present invention can be used to collimate the rays on the detector, and improve SPECT (or CT) image resolution, such as Figure 1 to Figure 9 As shown, the collimator 100 includes several corrugated plates 10 and several flat plates 20 , and several collimation holes 5 located between the corrugated plates 10 and the flat plates 20 . Both the corrugated plate 10 and the flat plate 20 are made of a radiation absorbing material 1 (such as figure 2 ), such as lead, tungsten or an alloy containing lead or tungsten, etc., in the present invention, the corrugated plate 10 and the flat plate 20 are made of the same material, of course, the possibility of u...
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The invention relates to a collimator for nuclear medical equipment, which comprises a plurality of corrugated plates and a plurality of flat plates, wherein each corrugated plate comprises crests, troughs and side edge walls connected with the crests and the troughs; the crests or the troughs, the side edge walls and the flat plates together form collimating holes in a surrounding mode to allow rays to pass through; and the plate thickness of each crest, each trough and each flat plate is smaller than that of each side edge wall. Preferably, the crest and the trough have the same plate thickness, and the thickness sum of the crest or the trough and the flat plate is equal to the plate thickness of the side edge wall, the hole wall thickness between any adjacent two collimating holes is the same, a collimating hole array in the collimator can be ensured to be uniformly distributed in the collimator, uniform ray collimating by the collimator is facilitated, and the collimating effects of the collimator are improved. In the case of manufacturing, a plurality of corrugated plates with the crests and the troughs having plate thicknesses smaller than those of side edge walls and flat plates whose plate thicknesses are also smaller than those of side edge walls are stacked alternatively to form the collimator.
Description
technical field [0001] The invention relates to the technical field of radionuclide imaging, in particular to a collimator for nuclear medical equipment and a manufacturing method thereof. Background technique [0002] In radionuclide imaging technology, especially in CT (computed tomography, electronic computer tomography) and SPECT (single photon emission computed tomography, single photon emission computed tomography) technology, collimator is an essential key component one. The collimator is usually made of materials with radiation absorption properties, such as lead, tungsten, etc., and a number of collimation holes are arranged on it to form a collimation hole array. The function of the collimator is to block the rays that do not fly along the collimation holes. , allowing the passage of rays flying along the collimating hole above it, is widely used in nuclear medical equipment. [0003] In the past, many collimators were often manufactured by corrugated plate bondi...
Claims
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IPC IPC(8): G21K1/02A61N5/10
Inventor 李延召
Owner WUHAN ZHIWEI TECH CO LTD