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Refractive lens for x-rays, contains sawtooth shaped grooves for x-rays to pass through as they enter one end of lens and exit opposite end
KTH, Skolan för teknikvetenskap (SCI), Fysik, Medicinsk bildfysik.
2001 (Engelska)Patent (Övrig (populärvetenskap, debatt, mm))
Abstract [en]

The lens contains sawtooth-shaped grooves (103, 104) located between the two ends of the lens in at least two surfaces. A refractive device for x-rays comprises a low Z-material part (101) with one end (105) for receiving x-rays from an x-ray source, and an opposite end (106) for these x-rays to exit from. The device also includes a number of essentially sawtooth-shaped grooves located between the two ends in at least two surfaces. The grooves are arranged so that x-rays entering the device will have to pass through them as they travel between the two ends of the device, after which they are focused to a refraction point. Independent claims are also included for (a) a lens containing this refractive device, (b) an x-ray system for two-dimensional focusing of x-rays and including at least two of these lenses, each x-ray beam intersecting the two lenses one after the other, and at least one lens being rotated about an optical axis relative to the other lens, (c) a method for two-dimensional focusing using these lenses, (d) a method for obtaining a bimodal energy distribution from an x-ray source using this lens, (e) a method for making a refractive x-ray lens with a sawtooth profile by engraving the profiles in a substrate, processing an original piece and using the original to press grooves into a suitable material.

Ort, förlag, år, upplaga, sidor
2001.
Nationell ämneskategori
Medicinsk apparatteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-322678OAI: oai:DiVA.org:kth-322678DiVA, id: diva2:1722345
Patent
SE 514223 (2001-01-22)
Anmärkning

QC 20230116

Tillgänglig från: 2022-12-28 Skapad: 2022-12-28 Senast uppdaterad: 2023-01-16Bibliografiskt granskad

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Cederström, Björn

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Cederström, Björn
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Totalt: 23 träffar
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