?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=X-ray+micro-computed+tomography+with+amplitude+modulated+beams+(beam+tracking%2C+edge+illumination)%3A+opportunities%2C+challenges%2C+and+outlook&rft.creator=Hagen%2C+Charlotte+K&rft.creator=Lioliou%2C+Grammatiki&rft.creator=Roche+i+Morgo%2C+Oriol&rft.creator=Shah%2C+Khushal&rft.creator=Zekavat%2C+Amir&rft.creator=Astolfo%2C+Alberto&rft.creator=Munro%2C+Peter&rft.creator=Cipiccia%2C+Silvia&rft.creator=Endrizzi%2C+Marco&rft.creator=Olivo%2C+Alessandro&rft.description=In+recent+years%2C+x-ray+micro-computed+tomography+(micro-CT)+systems+with+amplitude+modulated+beams+have+gained+global+interest.+These+systems+feature+a+modulator%2C+that+is%2C+an+x-ray+opaque+mask+with+periodically+spaced+apertures%2C+in+front+of+the+sample%2C+creating+an+array+of+spatially+separated+beamlets.+The+approach+offers+x-ray+phase+contrast+imaging+(XPCI)%2C+which+improves+the+contrast-to-noise+ratio+and+reveals+the+presence+of+sub-resolution+inhomogeneities+by+capturing%2C+respectively%2C+refraction+and+ultra-small+angle+scattering+(dark+field+signal)+alongside+x-ray+attenuation.+Additionally%2C+the+modulator+can+increase+spatial+resolution%2C+as+the+narrow+beamlets+can+transfer+higher+spatial+frequencies+without+requiring+geometric+magnification.+This+brief+communication+reviews+the+working+principle+of+the+approach+and+comments+on+a+remaining+challenge+(relatively+long+scan+times).&rft.publisher=Society+of+Photo-Optical+Instrumentation+Engineers+(SPIE)&rft.contributor=M%C3%BCller%2C+Bert&rft.contributor=Wang%2C+Ge&rft.date=2024&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A+M%C3%BCller%2C+Bert+and+Wang%2C+Ge%2C+(eds.)+Proceedings+of+the+Developments+in+X-Ray+Tomography+XV.++(pp.+pp.+1-6).++Society+of+Photo-Optical+Instrumentation+Engineers+(SPIE)+(2024)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10199367%2F7%2FHagen_X-ray%2520micro-computed%2520tomography%2520with%2520amplitude%2520modulated%2520beams%2520%2528beam%2520tracking%252C%2520edge%2520illumination%2529_VoR.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10199367%2F&rft.rights=open