Zobrazeno 1 - 10
of 45
pro vyhledávání: '"James L, Gräfe"'
Publikováno v:
Journal of Medical Physics, Vol 48, Iss 4, Pp 312-327 (2023)
Radiosurgery and stereotactic radiotherapy have established themselves as precise and accurate areas of radiation oncology for the treatment of brain and extracranial lesions. Along with the evolution of other methods of radiotherapy, this type of tr
Externí odkaz:
https://doaj.org/article/3a4cb09a6af545d9bd3a2e7c0c400a47
Publikováno v:
Journal of Applied Clinical Medical Physics. 23
The shallow depth of maximum dose and higher dose fall-off gradient of a 2.5 MV beam along the central axis that is available for imaging on linear accelerators is investigated for treatment of shallow tumors and sparing the organs at risk (OARs) bey
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ea856ccf3068c56ac14631d1c83e377
https://doi.org/10.1002/acm2.13811
https://doi.org/10.1002/acm2.13811
Publikováno v:
Journal of Radiological Protection. 39:1031-1040
PURPOSE In vivo x-ray fluorescence is a non-invasive analytical technique for determining trace and toxic element exposures. In this work we measure the dose for a portable handheld x-ray system (pXRF). MATERIALS AND METHODS We used EBT3 radiochromic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::306bb17a1c0bd4c0455cb21f79aaf567
https://doi.org/10.1088/1361-6498/ab3237
https://doi.org/10.1088/1361-6498/ab3237
Publikováno v:
Journal of Applied Clinical Medical Physics
Purpose The purpose of this work was to investigate the dosimetric impact of mixed energy (6‐MV, 15‐MV) partial arcs (MEPAs) technique on prostate cancer VMAT plans. Methods This work involved prostate only patients, planned with 79.2 Gy in 44 fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90dfaeb184ca631aa7c88ee71a3ff2ba
https://doi.org/10.1002/acm2.12561
https://doi.org/10.1002/acm2.12561
Publikováno v:
Medical physicsReferences. 48(7)
Purpose A multi-scale investigation of the biological properties of gadolinium neutron capture (GdNC) therapy with applications in particle therapy is conducted using the TOPAS Monte Carlo (MC) simulation code. The simulation results are used to quan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::455a226c5b78125f66fb8d90cc28e5b4
https://pubmed.ncbi.nlm.nih.gov/33959981
https://pubmed.ncbi.nlm.nih.gov/33959981
Publikováno v:
Applied Radiation and Isotopes. 182:110151
Development of portable X-ray fluorescence devices has made it easier to quickly assess trace elements such as zinc in human tissue. A TOPAS Monte Carlo code was used to investigate the use of a portable X-ray fluorescence system for detecting zinc i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::787a7bc79942a03e7f1879a9c8be8572
https://doi.org/10.1016/j.apradiso.2022.110151
https://doi.org/10.1016/j.apradiso.2022.110151
Autor:
Joanna, Nguyen, James L, Gräfe
Publikováno v:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 168
The air kerma rate constant is important for estimating radiation dose and shielding calculations to ensure radiation exposure is as low as reasonably achievable (ALARA). Currently, there are significant deviations in this constant reported for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::041d80b98d840a003ee0d4472ab06f88
https://pubmed.ncbi.nlm.nih.gov/33658132
https://pubmed.ncbi.nlm.nih.gov/33658132
Publikováno v:
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB). 82
Purpose The purpose of this work was to present a new single-arc mixed photon (6&18MV) VMAT (SAMP) optimization framework that concurrently optimizes for two photon energies with corresponding partial arc lengths. Methods and materials Owing to simul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31333edadf1ceb9a4659ca8801a751ad
https://pubmed.ncbi.nlm.nih.gov/33611049
https://pubmed.ncbi.nlm.nih.gov/33611049
Publikováno v:
Physiological measurement. 41(7)
Lanthanum (La) retention in bone has been shown to occur in individuals who are orally administered lanthanum carbonate (LaC), a drug to treat hyperphosphatemia. The breakdown of LaC in the gastrointestinal tract into LaCoherent normalization was inv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::54cb143d5a80cfbed7e354bff72db92c
https://pubmed.ncbi.nlm.nih.gov/32392547
https://pubmed.ncbi.nlm.nih.gov/32392547
Publikováno v:
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-11 (2020)
Scientific Reports, Vol 10, Iss 1, Pp 1-11 (2020)
This study investigates the photon production from thermal neutron capture in a gadolinium (Gd) infused tumor as a result of secondary neutrons from particle therapy. Gadolinium contrast agents used in MRI are distributed within the tumor volume and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62366d196bcc33e38c393814787a8403
https://pubmed.ncbi.nlm.nih.gov/32770174
https://pubmed.ncbi.nlm.nih.gov/32770174