Handling Using Diaphragms/Collimeters TRIZ Cases

Movable masking device segments the beam path to reduce unused radiation dose at scan ends without increasing space height.

Sector annulus collimators enable overlapping Bragg diffracted radiation at detectors, eliminating slow mechanical scanning and special sample preparation.

Adding compensating functions to leaf coordinates minimizes the tongue and groove effect, reducing striping in delivered fluence for precise dose distribution.

A movable wedge with an integrated shield blocks unnecessary X-rays during scanning, reducing radiation dose without adding complex biaxial slit mechanisms.

Segmented collimator elements irradiate marginal regions to supply attenuation data, eliminating truncation artefacts while minimizing X-ray dose.

Interlocking channels and protrusions define precise apertures, reducing scattered X-rays without requiring difficult small-feature machining on tungsten.

A stationary x-ray diffraction device uses a multi-plane scatter collimator with quadrilateral passages to direct legitimate scattered photons toward the detector.

Optical sensors identify unique collimator traits to prevent human errors during medical linear accelerator treatment delivery.

Dual collimators in a fan-shaped box enable precise X-ray beam centering, reducing shielding layer thickness while improving inspection quality.

Disk chopper wheel assembly uses source-side and output-side scatter plates to absorb scattered radiation while maintaining safe operation levels.

Composite filler material fills through-channels in anti-scatter collimators to resolve mechanical stability issues caused by operational deformation.

Segmented parallel hole segments with distinct pointing directions form a fanbeam collimator, reducing manufacturing complexity and cost.

A radiography apparatus quantifies braze bonding length by converting transmitted radiation intensity into measurable light signals.

Carbon nanotube field emission replaces thermal cathodes to boost efficiency while a replaceable cartridge manages vacuum degradation.

Shorter multi-leaf collimator segments minimize nozzle volume while maintaining precise dose distribution at the peripheral edge of the irradiation field.

A collimator module uses resin to hold grid-formed X-ray blocking plates, simplifying manufacturing of detailed components.

Grooves in upper and lower supports orient collimator plates to maintain flatness, preventing focal point shifts and image artifacts during wide-range scanning.

A mini-beam collimator generates a spatially fractionated dose profile to treat brain tumors while minimizing collateral damage to healthy tissues.

A delta map transforms reference isotope calibration data to other isotopes in non-pixelated gamma detectors.

A fluid column radiation modulator adjusts immersion depth to shape beams in real time.

A single-actuator collimator uses overlapping plate elements to adjust x-ray beam shapes in two dimensions.

Rotating pinhole bodies within a SPECT scanner collimator dynamically adjusts the focus volume to resolve imaging precision versus adaptability contradictions.

Alternating spacer and absorber foils selectively capture stray neutrons, eliminating scattered noise that degrades transmission image clarity.

A multi-leaf collimator leaf uses segmented materials to attenuate radiation while reducing component weight.

A collimating body with side-by-side portions moves to align or stagger hole sets for radiation field adjustment.

Multi-slit knife-edge collimators enable real-time Bragg peak monitoring by detecting prompt gamma rays, eliminating PET imaging delays.

Variable grid wall parameters achieve a uniform scatter-to-primary ratio, resolving non-uniform image quality degradation in radiation detectors.

Segmented display windows refresh the region of interest at a higher rate than the field of view.

A sensor array measures ray intensity to align the source and detector module in inspection systems.

Segmented collimator blades selectively transmit radiation to reduce patient exposure without requiring rapid x-ray power adjustments.

Segmenting the collimator into two diaphragms reduces structural complexity and fabrication costs while maintaining precision for quasi-3D tomosynthesis.

Adjustable X-ray collimator uses independent sliding stops driven by rotating nuts and leading screws to control beam geometry.

Multi-leaf collimator apertures orient parallel to periodic tumor trajectories to synchronize leaf movements with target motion.

Segmenting dynamic treatments into control points to reduce calculation time while maintaining head scatter phase space accuracy.

Staggered coaxial iris diaphragms create polygonal beam profiles that reduce penumbrae and leakage radiation during tumor treatment.

A dual-energy X-ray imaging system acquires quantitative bone mineral density data using flat-panel detectors.

A laser generator unit reflects light via a mirror to visually indicate the X-ray irradiation region on the shutter.

A collimator with an angled base refracts light to adjust emission angles without tilting the device.

A collimator uses a thinner electron absorbing plug to manage beam leakage.

Wider base portions on anti-scatter plates minimize dynamic shadowing artifacts caused by focal spot motion in CT scanners.

Repositioning the x-ray source relative to collimating apertures adjusts the field of view, maintaining resolution across varying object distances.

A multi-layer multi-leaf collimator acts as a virtual flattening filter for photon beams.

An integrated light source visualizes the invisible X-ray beam geometry, resolving alignment precision issues without adding complex mechanical controls.

A fast X-ray shutter blocks radiation outside the area of interest to improve image quality.

Polygonal shell beam segmentation expands d-spacing detection ranges while avoiding high-energy generator complexity and heavy shielding requirements.

Compensating for misaligned optical and x-ray axes during collimator element adjustment to eliminate unnecessary patient radiation exposure.

A collimator assembly uses a reinforcing layer to maintain structural rigidity during gantry rotation.

A prolate spheroid collimator uses twisted slit apertures to maintain a constant beam cross-section during rotation.

Lateral leaf movement eliminates gaps between adjacent leaves, preventing leakage radiation in multi-leaf collimators.

Processor executes treatment plan with transition phases to reconfigure radiation system independently of patient motion, reducing idle time during delivery.