Pencil beam scanning is the practice of steering a beam of radiation or charged particles across an object. It is often used in proton therapy, to reduce unnecessary radiation exposure to surrounding non-cancerous cells.
Ionizing radiationphotons or x-rays (IMRT) use pencil beam scanning to precisely target a tumor.[1] Photon pencil beam scans are defined as crossing of two beams to a fine point.
Charged particlesedit
Several charged particles devices used with Proton therapy cancer centers use pencil beam scanning.[2] The newer proton therapy machines use a pencil beam scanning technology.[3] This technique is also called spot scanning.[4] The Paul Scherrer Institute was the developer of spot beam.[5]
Intensity Modulated Proton Therapyedit
Varian's IMPT system uses all pencil-beam controlled protons where the beam intensity can also be controlled at this small level. This can be done by going back and forth over a previously radiated area during the same radiation session.
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April 13, 2024
pencil, beam, scanning, pencil, beam, scanning, practice, steering, beam, radiation, charged, particles, across, object, often, used, proton, therapy, reduce, unnecessary, radiation, exposure, surrounding, cancerous, cells, contents, ionizing, radiation, charg. Pencil beam scanning is the practice of steering a beam of radiation or charged particles across an object It is often used in proton therapy to reduce unnecessary radiation exposure to surrounding non cancerous cells Contents 1 Ionizing radiation 2 Charged particles 3 Intensity Modulated Proton Therapy 4 See also 5 ReferencesIonizing radiation editIonizing radiation photons or x rays IMRT use pencil beam scanning to precisely target a tumor 1 Photon pencil beam scans are defined as crossing of two beams to a fine point Charged particles editSeveral charged particles devices used with Proton therapy cancer centers use pencil beam scanning 2 The newer proton therapy machines use a pencil beam scanning technology 3 This technique is also called spot scanning 4 The Paul Scherrer Institute was the developer of spot beam 5 Intensity Modulated Proton Therapy editVarian s IMPT system uses all pencil beam controlled protons where the beam intensity can also be controlled at this small level This can be done by going back and forth over a previously radiated area during the same radiation session See also editPencil mathematics Pencil optics Radiation treatment planning mean free path Monte Carlo method for photon transport Hybrid theory for photon transport in tissue Diffusion theory Monte Carlo method Varian Medical SystemsReferences edit Blake GM Parker JC Buxton FM Fogelman I October 1993 Dual X ray absorptiometry a comparison between fan beam and pencil beam scans Br J Radiol 66 790 902 6 doi 10 1259 0007 1285 66 790 902 PMID 8220974 Khan Faiz M 2010 The Physics of Radiation Therapy ISBN 9780781788564 http www accessdata fda gov cdrh docs pdf10 K100766 pdf page4 03 30 09 Advances in Proton Therapy Pencil Beam Technology Reach Patient Care MD Anderson Cancer Center www mdanderson org Archived from the original on 2011 03 03 The PSI Proton Therapy Facility radmed web psi ch Archived from the original on 2002 01 06 Retrieved from https en wikipedia org w index php title Pencil beam scanning amp oldid 1166263522, wikipedia, wiki, book, books, library,
