Related by context. Frequent words. (Click for all words.) 54 X ray detector 54 collimated 53 collimators 53 collimation 52 bipolar transistors 52 fluoroscopic 52 optical encoder 52 tomographic 52 Magnetic resonance 51 confocal 51 photon counting 51 subwavelength 51 brightfield 51 scanning electron microscopes 50 THz radiation 50 chemiluminescence 50 interferometric 50 intracardiac 49 scintillator 49 LightSpeed VCT 49 computed tomography SPECT 49 pulsed laser 49 #nm wavelength [001] 49 Doppler ultrasound 49 monochromator 48 photometer 48 SPECT imaging 48 keV 48 airflows 48 thermal dissipation 48 radiosurgical 48 microbubble 48 spectral imaging 48 optical coherence tomography OCT 47 Millimeter wave 47 x ray diffraction 47 quantum cascade lasers 47 infrared detector 47 near infrared NIR 47 radiofrequency RF 47 temperature gradients 47 postprocessing 47 ionisation 47 nonlinear optical 47 opto 47 thermo mechanical 47 photometric 47 coating thickness 47 dispersive 47 infrared LEDs 47 cryogenic temperatures 46 isotropic 46 X ray beam 46 CO2 lasers 46 leakage currents 46 magnetic resonance MR 46 numerical aperture 46 paramagnetic 46 ratiometric 46 thermoelectric generators 46 radiotracer 46 perfusion imaging 46 cryogen 46 synchrotrons 46 quantum cascade laser 46 linac 46 x ray beam 46 #bits 46 sensor arrays 46 adiabatic 46 Nd YAG 46 image intensifier 45 cryo electron microscopy 45 peristaltic 45 enthalpy 45 confocal microscope 45 rescaling 45 terahertz waves 45 collimator 45 imaging 45 flexible endoscopes 45 SolarWindow 45 fluorescence detection 45 JPEG compression 45 scanning electron microscope SEM 45 photoluminescence 44 3T MRI 44 fluoroscopy 44 crystalline modules 44 AFMs 44 SPECT CT 44 electroluminescence 44 PET CT scan 44 coplanar 44 keyers 44 X ray mammography 44 Sofradir 44 nanocoatings 44 vascular ultrasound 44 linewidth 44 convection cooled