Use of parallel‐plate ionization chambers in reference dosimetry of NOVAC and LIAC® mobile electron linear accelerators for intraoperative radiotherapy: a multi‐center survey
Sign Up to like & getrecommendations! Published in 2017 at "Medical Physics"
DOI: 10.1002/mp.12020
Abstract: Purpose: LIAC® and NOVAC are two mobile linear accelerators dedicated to intraoperative radiation therapy (IORT), generating electron beams in the energy range of 3–12 MeV. Due to high dose‐per‐pulse (up to 70 mGy per pulse),… read more here.
Keywords: ionization chambers; linear accelerators; ferrous sulphate; dosimetry ... See more keywords
Investigations of radiation properties, photon interaction parameters and water equivalence of some polymers used in the construction of ionization chambers for low energy X-ray beams
Sign Up to like & getrecommendations! Published in 2020 at "Measurement"
DOI: 10.1016/j.measurement.2019.107210
Abstract: Abstract Ionization chambers are often used in a phantom of material different from their walls, leading to a fluence perturbation. The main goal of this paper is to investigate the water equivalence of some polymers… read more here.
Keywords: water equivalence; water; ionization chambers; equivalence polymers ... See more keywords
Quantification of static magnetic field effects on radiotherapy ionization chambers.
Sign Up to like & getrecommendations! Published in 2017 at "Physics in medicine and biology"
DOI: 10.1088/1361-6560/aa5876
Abstract: Integrated magnetic resonance (MR) imaging and radiotherapy (RT) delivery machines are currently being developed, with some already in clinical use. It is anticipated that the strong magnetic field used in some MR-RT designs will have… read more here.
Keywords: variation; ionization chambers; field; air ... See more keywords
Monte Carlo calculation of beam quality correction factors for PTW cylindrical ionization chambers in photon beams.
Sign Up to like & getrecommendations! Published in 2020 at "Physics in medicine and biology"
DOI: 10.1088/1361-6560/ab9501
Abstract: The beam quality correction factor kQfor megavoltage photon beams has been calculated for eight PTW (Freiburg, Germany) ionization chambers (Farmer chambers PTW30010, PTW30011, PTW30012, and PTW30013, Semiflex 3D chambers PTW31021, PTW31010, and PTW31013, and the… read more here.
Keywords: photon beams; ionization chambers; monte carlo; quality correction ... See more keywords
Direct determination ofkB ⃗,Q,Q0for cylindrical ionization chambers in a 6 MV 0.35 T MR-linac.
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DOI: 10.1088/1361-6560/abab56
Abstract: To ensure accurate reference dosimetry with ionization chambers in MR-linacs, the influence of the magnetic field on the response of the ionization chambers must be considered. The most direct method considering the influence of magnetic… read more here.
Keywords: cylindrical ionization; determination ofkb; ionization chambers; direct determination ... See more keywords
Ionization Chambers to Determine Neutron and Gamma-Ray Kerma in a Research Reactor
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DOI: 10.1109/tns.2019.2937750
Abstract: Ionization chambers were designed and constructed to determine the kerma rates in various materials within several centimeters of a Training, Research, Isotopes, General Atomics (TRIGA) reactor core operating at 1 MW. The primary aim of… read more here.
Keywords: gas; kerma; ionization chambers; ionization ... See more keywords