Beam properties and stability of a flattening-filter free 7 MV beam-an overview

Medical Physics
Yvonne DziermaChristian Ruebe

Abstract

Several works have recently focused on flattening-filter-free (FFF) beams of linear accelerators of various companies (in particular, Varian and Elekta), but no overview as yet exists for the flattening-filter free 7XU beam (Siemens Artiste). Dosimetric properties of the 7XU beam were measured in May and September 2011. We present depth dose curves and beam profiles, output factors, and MLC transmission and assess the stability of the measurements. The 7XU beam was commissioned in the Pinnacle[superscript three] treatment planning system (TPS), and modeling results including the spectrum are presented. The percent depth dose curve of the 7XU beam is similar to the flat 6X beam line, with a slightly smaller surface dose. The beam profiles show the characteristic shape of flattening-filter free beams, with deviations between measurements of generally less than 1%. The output factors of the 7XU beam decrease more slowly than for the 6X beam. The MLC transmission is comparable but slightly less for the 7XU beam. The 7XU beam can be adequately modeled by the Pinnacle[superscript three] TPS, with successful dosimetric verification. The spectrum of the 7XU beam has lower photon fluence up to approximately 2.5 MeV and higher fluence be...Continue Reading

References

Sep 6, 2003·International Journal of Radiation Oncology, Biology, Physics·Jian Z WangRobert D Stewart
Sep 16, 2003·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Xiangkui MuBjörn Zackrisson
Apr 20, 2004·International Journal of Radiation Oncology, Biology, Physics·Jack F FowlerSteven P Howard
Jul 28, 2004·International Journal of Radiation Oncology, Biology, Physics·Yuta ShibamotoMasaki Hara
Jul 2, 2005·International Journal of Radiation Oncology, Biology, Physics·Stephen F KryIsaac I Rosen
Mar 23, 2006·Physics in Medicine and Biology·Oleg N VassilievMichael T Gillin
Apr 29, 2006·Radiation Protection Dosimetry·Munir AhmadRavinder Nath
May 16, 2006·Medical Physics·Oleg N VassilievRadhe Mohan
Jul 29, 2006·Medical Physics·Falk PönischRadhe Mohan
Jun 5, 2007·International Journal of Radiation Oncology, Biology, Physics·Oleg N VassilievUwe Titt
Jul 20, 2007·International Journal of Radiation Oncology, Biology, Physics·Stephen F KryRadhe Mohan
Aug 21, 2007·Radiation Medicine·Asghar MesbahiAlireza Farajollahi
Mar 28, 2008·Physics in Medicine and Biology·Jason Cashmore
Aug 5, 2008·Radiation Medicine·Asghar Mesbahi, Farshad Seyed Nejad
Apr 17, 2009·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Sotirios StathakisNiko Papanikolaou
Jul 14, 2009·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Gabriele KraglDietmar Georg
Mar 23, 2010·Physics in Medicine and Biology·Stephen F KryRadhe Mohan
Apr 7, 2010·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·C Clifton LingEllen Yorke
Oct 5, 2010·Zeitschrift für medizinische Physik·Gabriele KraglDietmar Georg
Jul 8, 2011·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Ines LohseKathrin Zaugg
Jul 9, 2011·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Brita Singers SørensenLars Hjorth Præstegaard

❮ Previous
Next ❯

Citations

Jun 4, 2013·Radiation Oncology·Matthias KretschmerFlorian Würschmidt
Dec 11, 2013·Medical Physics·Yuichi AkinoKazuhiko Ogawa
Apr 30, 2014·Strahlentherapie und Onkologie : Organ der Deutschen Röntgengesellschaft ... [et al]·Yvonne DziermaChristian Rübe
May 30, 2013·Strahlentherapie und Onkologie : Organ der Deutschen Röntgengesellschaft ... [et al]·Y DziermaC Ruebe
Nov 27, 2014·Radiation Oncology·Yvonne DziermaChristian Rübe
Jun 15, 2013·Zeitschrift für medizinische Physik·Julia JankDietmar Georg
Mar 8, 2016·Zeitschrift für medizinische Physik·Yvonne DziermaChristian Rübe
Dec 15, 2015·Journal of Radiation Research·Keita KurosuKazuhiko Ogawa
Sep 9, 2015·Strahlentherapie und Onkologie : Organ der Deutschen Röntgengesellschaft ... [et al]·Yvonne DziermaJochen Fleckenstein
Nov 22, 2013·Journal of Applied Clinical Medical Physics·David B WiantBenjamin J Sintay
Oct 22, 2013·Physics in Medicine and Biology·Sergei Zavgorodni
Nov 19, 2019·Journal of Applied Clinical Medical Physics·Yoshihiro TanakaToshijiro Yamamoto
Jun 1, 2018·Journal of Radiation Research·Hisashi NakanoMasahiko Koizumi
Dec 9, 2016·Journal of Applied Clinical Medical Physics·Christopher L GuySiyong Kim

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.