Handling Using Diaphragms/Collimeters TRIZ Cases
- Dynamic X-ray Collimator Diaphragm for Spiral Scan Dose Reduction
Movable masking device segments the beam path to reduce unused radiation dose at scan ends without increasing space height.
- X-ray Collimator Design for Rapid Bragg Diffraction Overlap
Sector annulus collimators enable overlapping Bragg diffracted radiation at detectors, eliminating slow mechanical scanning and special sample preparation.
- Minimizing Tongue and Groove Effect in IMRT Leaf Sequencing
Adding compensating functions to leaf coordinates minimizes the tongue and groove effect, reducing striping in delivered fluence for precise dose distribution.
- Wedge Collimation for X-ray CT Dose Reduction
A movable wedge with an integrated shield blocks unnecessary X-rays during scanning, reducing radiation dose without adding complex biaxial slit mechanisms.
- Collimator Assembly for Reducing Truncation Artefacts in CT Imaging
Segmented collimator elements irradiate marginal regions to supply attenuation data, eliminating truncation artefacts while minimizing X-ray dose.