PMID: 9531385Apr 8, 1998Paper

Calibration of a mosfet detection system for 6-MV in vivo dosimetry

International Journal of Radiation Oncology, Biology, Physics
Paolo Scalchi, Paolo Francescon

Abstract

Metal oxide semiconductor field-effect transistor (MOSFET) detectors were calibrated to perform in vivo dosimetry during 6-MV treatments, both in normal setup and total body irradiation (TBI) conditions. MOSFET water-equivalent depth, dependence of the calibration factors (CFs) on the field sizes, MOSFET orientation, bias supply, accumulated dose, incidence angle, temperature, and spoiler-skin distance in TBI setup were investigated. MOSFET reproducibility was verified. The correlation between the water-equivalent midplane depth and the ratio of the exit MOSFET readout divided by the entrance MOSFET readout was studied. MOSFET midplane dosimetry in TBI setup was compared with thermoluminescent dosimetry in an anthropomorphic phantom. By using ionization chamber measurements, the TBI midplane dosimetry was also verified in the presence of cork as a lung substitute. The water-equivalent depth of the MOSFET is about 0.8 mm or 1.8 mm, depending on which sensor side faces the beam. The field size also affects this quantity; Monte Carlo simulations allow driving this behavior by changes in the contaminating electron mean energy. The CFs vary linearly as a function of the square field side, for fields ranging from 5 x 5 to 30 x 30 cm2...Continue Reading

References

Sep 1, 1990·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·G LeunensE van der Schueren
Feb 1, 1990·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·G LeunensE van der Schueren
Jun 1, 1980·International Journal of Radiation Oncology, Biology, Physics·F M KhanT H Kim
May 1, 1995·Medical Physics·D W RogersT R Mackie
Nov 1, 1993·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·G GaravagliaB Mijnheer
May 1, 1996·Medical Physics·M J ButsonP E Metcalfe
Nov 1, 1996·Medical Physics·R Sjögren, M Karlsson

❮ Previous
Next ❯

Citations

Sep 6, 2003·Australasian Physical & Engineering Sciences in Medicine·T CheungP K N Yu
Jun 29, 2011·Australasian Physical & Engineering Sciences in Medicine·Aisling HaugheyKoki Mugabe
Apr 30, 2013·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·A SorsX Franceries
Jul 17, 2003·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Esther Bloemen-van GurpPhilippe Lambin
Aug 1, 2007·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·G A Pablo CirroneLucia M Valastro
Jun 24, 2010·Physics in Medicine and Biology·Nicholas HardcastleAnatoly B Rosenfeld
Feb 26, 2008·Medical Physics·James A TanyiBill J Salter
Jun 24, 2009·Medical Physics·A CherpakJ E Cygler
Jul 15, 2005·Medical Physics·Paolo ScalchiPriyadarshini Rajaguru
Sep 6, 2014·Journal of Medical Physics·A Sathish KumarB Paul Ravindran
Jun 27, 2014·Strahlentherapie und Onkologie : Organ der Deutschen Röntgengesellschaft ... [et al]·Juan López-TarjueloCarlos Ferrer-Albiach
Feb 18, 2015·Radiation Protection Dosimetry·Svetlana M PejovicOlivera Ciraj-Bjelac
Dec 26, 2012·Medical Dosimetry : Official Journal of the American Association of Medical Dosimetrists·Kana MatsubaraHidetoshi Saitoh
Mar 25, 2009·International Journal of Radiation Oncology, Biology, Physics·Wouter van ElmptAndré Dekker
Sep 3, 2008·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Julian R PerksJames A Purdy
Nov 27, 2007·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Amanda CherpakJoanna E Cygler
Aug 19, 2006·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Esther J Bloemen-van GurpPhilippe Lambin
Dec 20, 2005·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Mario CioccaRoberto Orecchia
Oct 4, 2005·International Journal of Radiation Oncology, Biology, Physics·Rita ConsortiMarcello Benassi
Apr 9, 2005·International Journal of Radiation Oncology, Biology, Physics·Serge MarciéJean-Pierre Gérard
Apr 17, 2009·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Rajesh A KinhikarDeepak D Deshpande
Oct 30, 2016·Reports of Practical Oncology and Radiotherapy : Journal of Greatpoland Cancer Center in Poznań and Polish Society of Radiation Oncology·Juan López-TarjueloCarlos Ferrer-Albiach
Jul 4, 2002·Medical Physics·Cynthia F ChuangPing Xia
Sep 11, 2014·Journal of Applied Clinical Medical Physics·Wei Loong JongAnatoly B Rosenfeld
Oct 9, 2004·Physics in Medicine and Biology·R RamaseshanM Islam
Jan 11, 2019·Journal of Applied Clinical Medical Physics·Anabela G DiasJoana Lencart
Dec 22, 2006·Physics in Medicine and Biology·Vanessa PanettieriMontserrat Ribas
Oct 2, 2009·Physics in Medicine and Biology·M A CarvajalA M Lallena
Jan 22, 2010·Physics in Medicine and Biology·Dirk VerellenGuy Storme
Feb 17, 2006·Physics in Medicine and Biology·Rajesh A KinhikarDeepak D Deshpande
Apr 29, 2006·Radiation Protection Dosimetry·A B RosenfeldM Zaider
Jul 1, 2020·Physics in Medicine and Biology·Anatoly B RozenfeldVladimir Feygelman
Apr 14, 2017·Journal of Medical Physics·Y Retna PonmalarHenry Finlay Godson
Dec 8, 2005·Physics in Medicine and Biology·S BestN Suchowerska
May 30, 2007·Journal of Applied Clinical Medical Physics·Raj VaradhanMichael Weber
Jun 1, 2007·Japanese Journal of Clinical Oncology·HyunDo HuhSeongHoon Kim
Jul 12, 2017·Medical Physics·Nikolina VicoroskiMarco Petasecca

❮ 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.