Download or read book Aspects of Fast Neutron Microdosimetry written by Judith Helen Meek and published by . This book was released on 1983 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microdosimetry for a Fast Neutron Therapy Beam written by Peter Justin Binns and published by . This book was released on 1993* with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microdosimetric Investigations at the Fast Neutron Therapy Facility at Fermilab written by Katja Maria Langen and published by . This book was released on 1997 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microdosimetry of Fast Neutrons in Selected Biological Materials written by Robert E. Wallace and published by . This book was released on 1987 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neutron Dosimetry written by John W. Baum and published by . This book was released on 1955 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microdosimetry for Boron Neutron Capture Therapy written by and published by . This book was released on 2000 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The specific aims of the research proposal were as follows: (1) To design and construct small volume tissue equivalent proportional counters for the dosimetry and microdosimetry of high intensity thermal and epithermal neutron beams used in BNCT, and of modified fast neutron beams designed for boron neutron capture enhanced fast neutron therapy (BNCEFNT). (2) To develop analytical methods for estimating the biological effectiveness of the absorbed dose in BNCT and BNCEFNT based on the measured microdosimetric spectra. (3) To develop an analytical framework for comparing the biological effectiveness of different epithermal neutron beams used in BNCT and BNCEFNT, based on correlated sets of measured microdosimetric spectra and radiobiological data. Specific aims (1) and (2) were achieved in their entirety and are comprehensively documented in Jay Burmeister's Ph. D. dissertation entitled ''Specification of physical and biologically effective absorbed dose in radiation therapies utilizing the boron neutron capture reaction'' (Wayne State University, 1999). Specific aim (3) proved difficult to accomplish because of a lack of sufficient radiobiological data.
Download or read book The Physics and Radiobiology of Fast Neutron Beams written by David K. Bewley and published by CRC Press. This book was released on 1989-10-01 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over fifty years have passed since the first patient was treated with fast neutrons, but this form of therapy is still a matter of bitter dispute. Neutron generators have been installed in many countries and now patients can be treated with equipment that is technically similar to modern megavoltage x-ray equipment. The Physics and Radiobiology of Fast Neutron Beams presents a full discussion of the physical and radiobiological factors governing the production and use of fast neutron beams for therapy. The book discusses vastly improved neutron generators, advances in the standardization of dosimetric methods, and the specification of radiation quality. In addition, it explores nuclear methods of analysis, particularly neutron activation analysis in vivo. Influencing the place of radiotherapy with neutrons and other heavy particles, the radiobiological factors governing the treatment of cancer with radiation are examined. The author also studies the radiation hazard of neutrons, a matter of importance in the use of neutrons for chemical analysis in vivo. The Physics and Radiobiology of Fast Neutron Beams will be a valuable introduction to the subject for radiotherapists, medical physicists, radiographers, and radiobiologists new to the field. The book is also a useful summary of current knowledge for those already established in the use of fast neutrons for medical purposes.
Download or read book Fast neutron Microdosimetry with CR 39 Solid State Nuclear Track Detector SSNTD written by Seungjae Han and published by . This book was released on 1989 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microdosimetric Investigations at the Fast Neutron Therapy Facility at Fermilab written by and published by . This book was released on 1997 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microdosimetry was used to investigate three issues at the neutron therapy facility (NTF) at Fermilab. Firstly, the conversion factor from absorbed dose in A-150 tissue equivalent plastic to absorbed dose in ICRU tissue was determined. For this, the effective neutron kerma factor ratios, i.e. oxygen tissue equivalent plastic and carbon to A-150 tissue equivalent plastic, were measured in the neutron beam. An A-150 tissue equivalent plastic to ICRU tissue absorbed dose conversion factor of 0.92 " 0.04 determined. Secondly, variations in the radiobiological effectiveness (RBE) in the beam were mapped by determining variations in two related quantities, e{sup *} and R, with field size and depth in tissue. Maximal variation in e{sup *} and R of 9% and 15% respectively were determined. Lastly, the feasibility of utilizing the boron neutron capture reaction on boron-10 to selectively enhance the tumor dose in the NTF beam was investigated. In the unmodified beam, a negligible enhancement for a 50 ppm boron loading was measured. To boost the boron dose enhancement to 3% it was necessary to change the primary proton energy from 66 MeV and to filter the beam by 90 mm of tungsten.
Download or read book Advances in Dosimetry for Fast Neutrons and Heavy Charged Particles for Therapy Applications written by International Atomic Energy Agency and published by . This book was released on 1984 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physics Dosimetry and Microdosimetry of Boron Neutron Capture Therapy written by Zamir Ghani and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A validated experimental and numerical procedure is described detailing macroscopic and microscopic dose calculations forming the basis of a protocol for the pre-clinical biological characterisation of the University of Birmingham's BNCT facility. Fundamental reference dosimetric measurements have been carried out at the University of Birmingham's accelerator based NCT facility and the Massachusetts Institute of Technology (MIT) research reactor to characterise macroscopic and microscopic doses and derive correction factors for the irradiation of V79 cells incubated in boric acid and irradiated as monolayers. On and off-axis thermal neutron, fast neutron and photon doses have been measured and calculated with standard macroscopic dosimetry techniques (foils and ion chambers) from which normalised MCNPX calculations are used to derive perturbation factors and off-axis corrections for cell flask irradiations. Microdosimetric correction factors are calculated for the boron dose component using Monte Carlo methods to simulate lithium ion and alpha particle tracks in semi-stochastic geometries representative of cell monolayer irradiations, incubated in a medium with 50ppm boric acid. Further simulations of recoil protons from nitrogen capture reactions allow for the calculation of correction factors for the non-uniform distribution of the nitrogen dose at the cellular level.
Download or read book Proton and Neutron Microdosimetry written by Lawrence Albert Smith and published by . This book was released on 1975 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neutron Dosimetry written by H. G. Menzel and published by . This book was released on 1997 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neutron Interactions with Biological Tissue Progress Report 1992 1993 written by and published by . This book was released on 1993 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first area of research focuses on track structure effects in neutron microdosimetry and nanodosimetry. This is an investigation of the effect of proton energy-loss straggling and the associated transport of energy by secondary electrons on neutron event-size distributions in small sites. Secondly, energy deposition spectra and their moments for fast neutrons are investigated. Using calculated charged particle initial spectra and slowing-down spectra the authors can calculate the energy deposition in spherical cavities. Lastly, an attempt was made to study the relation of neutron energy deposition calculations to biology and biophysical models.
Download or read book The Physics Dosimetry and Microdosimetry of Boron Neutron Capture Theraphy written by Zamir Ghani and published by . This book was released on 2012 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Use of Thin Silicon Surface Barrier Detectors in Neutron Microdosimetry written by Margaret Gray Charnock and published by . This book was released on 1977 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
