collimators
Parallel light makers
Collimators are devices that narrow or align beams of light, radiation, or particles into parallel rays.
In medical imaging, a collimator shapes X-ray or gamma ray beams to target specific body areas while reducing scatter.
Telescopes and lasers use collimators to produce focused, parallel light.
The verb is collimate: The technician collimated the beam before the scan.
Instrument magnifying faraway objects
- observatoryFacility for celestial study
- spectroscopyStudy of light-matter interaction
- X-ray telescopeInstrument detecting high-energy cosmic radiation
- ChandraSanskrit word for moon
imaging · celestial · photometry · astrometry · focal plane · baffle · Hubble · point source
Light-focusing curved glass
- apertureAdjustable optical inlet
- prismLight-splitting optical element
- spectroscopeDevice separating light frequencies
- focuserThing that sharpens clarity
eyepiece · light beam · divergence · convergence · slit · pinhole · diaphragm · waveguide
Correct relative positioning
- calibrationAdjusting for measurement accuracy
- adjustmentAlteration to improve fit
- parallelismMatching structural elements
- accuracyDegree of correctness
tolerance · metrology · measurement · fine-tuning · repeatability · theodolite · quality control · instrumentation
Gamma-emitting radiotracer imaging method
- detectorDevice that senses
- radionuclideDecay-prone atomic nucleus
- pinholeMinute circular opening
- septaAnatomical partition walls
lead shielding · resolution · sensitivity · nuclear medicine · imaging · isotope
Straight-path particle accelerator
- dosimetryRadiation absorption measurement
- isocenterBeam intersection point
- penumbraRegion of partial illumination
- electron beamFocused stream of charged particles
treatment planning · gantry · scatter · bolus · wedges
telescope
Instrument magnifying faraway objects
- observatoryFacility for celestial study
- spectroscopyStudy of light-matter interaction
- X-ray telescopeInstrument detecting high-energy cosmic radiation
Chandra · imaging · celestial · photometry · astrometry · focal plane · baffle · Hubble · point source
lens
Light-focusing curved glass
- apertureAdjustable optical inlet
- prismLight-splitting optical element
- spectroscopeDevice separating light frequencies
focuser · eyepiece · light beam · divergence · convergence · slit · pinhole · diaphragm · waveguide · fiber optics
alignment
Correct relative positioning
- calibrationAdjusting for measurement accuracy
- adjustmentAlteration to improve fit
- parallelismMatching structural elements
accuracy · tolerance · metrology · measurement · fine-tuning · repeatability · theodolite · quality control · instrumentation
SPECT
Gamma-emitting radiotracer imaging method
- detectorDevice that senses
- radionuclideDecay-prone atomic nucleus
- pinholeMinute circular opening
septa · lead shielding · resolution · sensitivity · nuclear medicine · imaging · isotope
linear accelerator
Straight-path particle accelerator
- dosimetryRadiation absorption measurement
- isocenterBeam intersection point
- penumbraRegion of partial illumination
electron beam · treatment planning · gantry · scatter · bolus · wedges
collimatorsdiffusers
Things that spread outward
spreaders · dispersers · randomizers · concave lenses · prisms
collimatorscondensers
Equipment converting vapor to liquid
focusers · concentrators · convex lenses · prisms · lenses