Zobrazeno 1 - 10
of 29
pro vyhledávání: '"R D, Zwicker"'
Publikováno v:
Medical physics. 35(6)
Determination of shielding requirements for medical linear accelerators has been greatly facilitated by the publication of the National Council on Radiation Protection and Measurements (NCRP) latest guidelines on this subject in NCRP Report No. 151.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::80df0d6648727b714f03f0a65f6c2114
https://pubmed.ncbi.nlm.nih.gov/18649457
https://pubmed.ncbi.nlm.nih.gov/18649457
Publikováno v:
Oncology (Williston Park, N.Y.). 15(2)
Whole-breast external-beam radiation therapy (EBRT) involves a 6-week course of fractionated treatments. In contrast, brachytherapy can be completed in a 4- to 5-day treatment course. Because of this shortened time frame, there has been interest in b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a6ce9ef403587b1570ac4a1040e2eafd
https://pubmed.ncbi.nlm.nih.gov/11252933
https://pubmed.ncbi.nlm.nih.gov/11252933
Publikováno v:
The British journal of radiology. 69(820)
Effective radiotherapy for extensive angiosarcomas of the face and scalp is technically difficult due to the complex shape of the volume at risk, which can consist of the superficial tissues of the entire head. This work reports the details of a rota
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::dcdcde635235759280bd3c429a489135
https://pubmed.ncbi.nlm.nih.gov/8665137
https://pubmed.ncbi.nlm.nih.gov/8665137
Publikováno v:
Medical physics. 18(6)
This work reports the results of an experiment carried out to investigate the compatibility of TG-21 ion chamber calibration with Fricke dosimetry near the extremes of the clinically available megavoltage photon energy range. Doses determined from io
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f3681b6b7692af5fd777c5a8c08f9110
https://pubmed.ncbi.nlm.nih.gov/1753913
https://pubmed.ncbi.nlm.nih.gov/1753913
Autor:
R. D. Zwicker
Publikováno v:
Physical Review B. 18:2004-2010
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20535bcdab28975dc5d1a0cb57881b13
https://doi.org/10.1103/physrevb.18.2004
https://doi.org/10.1103/physrevb.18.2004
Publikováno v:
Medical Physics. 12:793-798
Abutment of unmodified electron fields to irradiate large areas can lead to significant dose inhomogeneities in the region of junction of the fields. In this paper we describe the design and dosimetric characteristics of a device developed to broaden
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9a81434a0957fc0d55206b43bd9b7b2
https://doi.org/10.1118/1.595667
https://doi.org/10.1118/1.595667
Autor:
R. D. Zwicker
Publikováno v:
physica status solidi (b). 64:K87-K91
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c2504e59306178275b2ab81848c0ea2
https://doi.org/10.1002/pssb.2220640246
https://doi.org/10.1002/pssb.2220640246
Publikováno v:
Medical Physics. 11:534-538
The presence of the Lucite blocking tray in a 45‐MV betatron beam leads to a considerable loss in the skin‐sparing properties of this unit. Measurements conducted with a parallel‐plate chamber show that the surface dose is approximately doubled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::413ba2630fa0cdc5967091950920610c
https://doi.org/10.1118/1.595523
https://doi.org/10.1118/1.595523
Autor:
R. D. Zwicker
Publikováno v:
Physical Review B. 12:5502-5505
It is shown that the use of variational trial functions with non-Hermitian pseudopotentials can lead to energies which do not represent accurate upper bounds to the true energy. Such difficulties can be resolved in principle by choosing a trial funct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13e59adc39a85d4be6b8f171339dccdb
https://doi.org/10.1103/physrevb.12.5502
https://doi.org/10.1103/physrevb.12.5502
Publikováno v:
Medical Physics. 12:27-31
A new calculation procedure for interstitial implants with I-125 seeds is presented. The total activity of I-125 seeds required to deliver a net minimum dose of 1 Gy is also given as a function of implant volume for various seed spacings. This will p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4622a6b9ce8f6295756f29e59bf95840
https://doi.org/10.1118/1.595733
https://doi.org/10.1118/1.595733