Results 271 to 280 of about 936,741 (303)

Derivation of isoeffect dose rate for low-dose-rate brachytherapy and external beam irradiation

International Journal of Radiation Oncology*Biology*Physics, 1999
The combination of external beam irradiation and brachytherapy has been used effectively in the management of many malignancies. Brachytherapy dose is typically prescribed to an isodose rate line, from which the implant duration is derived. In this study, the linear-quadratic model is used to derive the brachytherapy dose rate at which biological ...
H B, Giap, V, Massullo
openaire   +2 more sources

Estimation of external plume dose for a coastal site

Nuclear Engineering and Design, 2018
Abstract Estimation of external exposure due to atmospheric releases of photon emitting radionuclides from nuclear facilities is important during normal and emergency conditions since their contribution to the total public dose is relatively significant.
Jayant Krishan, Anand S., Pradeep Bhargava, Jesan T., Kapil Deo Singh, R.M. Tripathi   +5 more
openaire   +1 more source

Three-dimensional dose distributions for external beam radiotherapy

International Journal of Radiation Oncology*Biology*Physics, 1978
Abstract A computer program has been developed to calculate three-dimensional dose distributions for external beam radiotherapy. The distribution is composed of a series of parallel planes of variable separation for either a single field or for a combination of regular and/or irregular fields.
openaire   +2 more sources

Dose–volume effects for normal tissues in external radiotherapy: Pelvis

Radiotherapy and Oncology, 2009
A great deal of quantitative information regarding the dose-volume relationships of pelvic organs at risk has been collected and analysed over the last 10 years. The need to improve our knowledge in the modelling of late and acute toxicity has become increasingly important, due to the rapidly increasing use of inverse-planned intensity-modulated ...
Fiorino C, Valdagni R, Rancati T, Sanguineti G.   +3 more
openaire   +3 more sources

Gamma-Ray Dose Distributions in Externally Irradiated Cylinders

Radiation Research, 1970
HUBBARD, LINCOLN B., Gamma-Ray Dose Distributions in Externally Irradiated Cylinders. Radiat. Res. 44, 4-12 (1970). An approximate model is presented for the irradiation of uniform cylinders by external, broad-beam gamma rays. In this model the point doses for unilateral and bilateral irradiations are simple expressions of elementary functions.
openaire   +2 more sources

Age-Dependent Effective Doses for External Photons

Radiation Protection Dosimetry, 1994
Monte Carlo calculations of the effective dose, E, for external photons have been performed using anthropomorphic phantoms of six age groups: 0, 1, 5, 10 and 15 years, and adult. Twelve incident energies from 17 keV to 8.5 MeV were selected for each of five irradiation geometries: AP, PA, RLAT, ROT and ISO.
openaire   +1 more source

DOSE CALCULATION FOR EXTERNAL BEAMS

1982
Gunilla C. Bentel, Charles E. Nelson, K. Thomas Noell   +2 more
openaire   +1 more source

Rates of rectal toxicity in patients treated with high dose rate brachytherapy as monotherapy compared to dose-escalated external beam radiation therapy for localized prostate cancer

Radiotherapy and Oncology, 2020
Hong Ye, Evelyn Sebastian
exaly  

A comparison of outcomes for patients with intermediate and high risk prostate cancer treated with low dose rate and high dose rate brachytherapy in combination with external beam radiotherapy

Clinical and Translational Radiation Oncology, 2020
Finbar Slevin, Ann M Henry
exaly  

High dose rate brachytherapy in combination with external beam radiotherapy in the radical treatment of prostate cancer: initial results of a randomised phase three trial

Radiotherapy and Oncology, 2007
Peter J Hoskin
exaly