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Experience with the Alderson Rando phantom. [17-MeV electrons]

Abstract

The dose delivered to the spinal cord is of particular interest in electron beam therapy of medulloblastoma. Lithium fluoride thermoluminescent dosimetry has been used in an assessment of the dose distributions from a 17 MeV electron beam in an Alderson Rando Phantom (Alderson, S.W., Lanzl, L.H., Rollins, M., and Spira, J., 1962, American J. of Roentgenology, Radium Therapy and Nuclear Medicine, vol. 87, 185). Measurements were also made on three autopsy specimens immersed in water. There were substantial differences between the two sets of results. The density of the bony part of the phantom seemed to be markedly lower than that of the water; radiographs of various parts of the phantom confirmed that large areas of low density existed. The manufacturers have stated that in order to simulate true in vivo conditions, an artificial skeleton would have to be introduced into the tissue-like material of the phantom, and that the real skeletons now used appear to be unsuitable for electron beam dosimetry. It is therefore doubtful whether this electron beam dosimetry justifies the expense associated with the insertion of these unsatisfactory skeletons into the soft tissue-equivalent material.
Authors:
Somerwil, A; Kleffens, H.J. Van [1] 
  1. Rotterdams Radio Therapeutisch Instituut (Netherlands)
Publication Date:
Apr 01, 1977
Product Type:
Journal Article
Reference Number:
AIX-08-324926; EDB-77-149533
Resource Relation:
Journal Name: Br. J. Radiol.; (United Kingdom); Journal Volume: 50:592
Subject:
61 RADIATION PROTECTION AND DOSIMETRY; ELECTRON DOSIMETRY; SPATIAL DOSE DISTRIBUTIONS; PHANTOMS; ACCURACY; BIOLOGICAL MODELS; ELECTRON BEAMS; ELECTRONS; ERRORS; MEV RANGE 10-100; PERFORMANCE; RADIOTHERAPY; SIMULATION; SKELETON; SPINAL CORD; TISSUE-EQUIVALENT MATERIALS; VERTEBRAE; BEAMS; BODY; CENTRAL NERVOUS SYSTEM; DOSIMETRY; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; LEPTON BEAMS; LEPTONS; MEDICINE; MEV RANGE; MOCKUP; NERVOUS SYSTEM; NUCLEAR MEDICINE; ORGANS; PARTICLE BEAMS; RADIATION DOSE DISTRIBUTIONS; RADIOLOGY; STRUCTURAL MODELS; THERAPY; 655003* - Medical Physics- Dosimetry
OSTI ID:
7090168
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: BJRAA
Submitting Site:
INIS
Size:
Pages: 295-296
Announcement Date:
Oct 01, 1977

Citation Formats

Somerwil, A, and Kleffens, H.J. Van. Experience with the Alderson Rando phantom. [17-MeV electrons]. United Kingdom: N. p., 1977. Web.
Somerwil, A, & Kleffens, H.J. Van. Experience with the Alderson Rando phantom. [17-MeV electrons]. United Kingdom.
Somerwil, A, and Kleffens, H.J. Van. 1977. "Experience with the Alderson Rando phantom. [17-MeV electrons]." United Kingdom.
@misc{etde_7090168,
title = {Experience with the Alderson Rando phantom. [17-MeV electrons]}
author = {Somerwil, A, and Kleffens, H.J. Van}
abstractNote = {The dose delivered to the spinal cord is of particular interest in electron beam therapy of medulloblastoma. Lithium fluoride thermoluminescent dosimetry has been used in an assessment of the dose distributions from a 17 MeV electron beam in an Alderson Rando Phantom (Alderson, S.W., Lanzl, L.H., Rollins, M., and Spira, J., 1962, American J. of Roentgenology, Radium Therapy and Nuclear Medicine, vol. 87, 185). Measurements were also made on three autopsy specimens immersed in water. There were substantial differences between the two sets of results. The density of the bony part of the phantom seemed to be markedly lower than that of the water; radiographs of various parts of the phantom confirmed that large areas of low density existed. The manufacturers have stated that in order to simulate true in vivo conditions, an artificial skeleton would have to be introduced into the tissue-like material of the phantom, and that the real skeletons now used appear to be unsuitable for electron beam dosimetry. It is therefore doubtful whether this electron beam dosimetry justifies the expense associated with the insertion of these unsatisfactory skeletons into the soft tissue-equivalent material.}
journal = []
volume = {50:592}
journal type = {AC}
place = {United Kingdom}
year = {1977}
month = {Apr}
}