Zobrazeno 1 - 10
of 16
pro vyhledávání: '"T. S. Stelljes"'
Publikováno v:
Medical Physics, 47(11), 5890-5905. Wiley
PURPOSE: Beam quality correction factors provided in current codes of practice for proton beams are approximated using the water-to-air mass stopping power ratio and by assuming the proton beam quality related perturbation correction factors to be un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db91d0a3a96ef744b2421b07f7e956c9
https://doi.org/10.1002/mp.14499
https://doi.org/10.1002/mp.14499
Autor:
Jana Kretschmer, Leonie Brodbek, T. S. Stelljes, Björn Poppe, Hui Khee Looe, Daniela Poppinga
Publikováno v:
Medical Physics. 46:1863-1873
Purpose The collimator monitoring fill factor (CM-FF) introduced by Stelljes et al. (2017) and the FWHM fill factor (FWHM-FF) introduced by Gago-Arias et al. (2012) were determined using the measured photon fluence response functions of various 2D-ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9454475f906fa71587f0249a2f89371e
https://doi.org/10.1002/mp.13417
https://doi.org/10.1002/mp.13417
Autor:
Björn Poppe, Oliver Blanck, Britta Loutfi-Krauss, Frank-André Siebert, Ulla Ramm, T. S. Stelljes, Marie-Christin Damme, Mark K. H. Chan
Publikováno v:
Current Directions in Biomedical Engineering, Vol 3, Iss 2, Pp 277-280 (2017)
For daily CyberKnife QA a Winston-Lutz-Test (Automated-Quality-Assurance, AQA) is used to determine sub-millimeter deviations in beam delivery accuracy. This test is performed using gafchromic film, an extensive and user-dependent method requiring th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00ad43a8a9ccd2d06fd6d59e8838a4d8
https://doi.org/10.1515/cdbme-2017-0057
https://doi.org/10.1515/cdbme-2017-0057
Autor:
T. S. Stelljes, Britta Loutfi-Krauss, Ulla Ramm, Frank-André Siebert, L. Masi, Manfred Alraun, Christian Albrecht, Björn Poppe, Mark K. H. Chan, Daniela Poppinga, Oliver Blanck, Sebastian Adamczyk, Roman Fehr, Marie-Christin Damme
Publikováno v:
Physica Medica. 32(6):838-846
Purpose High precision radiosurgery demands comprehensive delivery-quality-assurance techniques. The use of a liquid-filled ion-chamber-array for robotic-radiosurgery delivery-quality-assurance was investigated and validated using several test scenar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df9e5362a48b51e23d8020b8a1665a3d
Publikováno v:
Medical Physics. 46:4708-4709
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77f6d09ddb6cbd740b10eede084e5bfe
https://doi.org/10.1002/mp.13683
https://doi.org/10.1002/mp.13683
Publikováno v:
Medical Physics. 42:1528-1537
Purpose: The dosimetric properties of the OCTAVIUS Detector 1500 (OD1500) ionization chamber array (PTW-Freiburg, Freiburg, Germany) have been investigated. A comparative study was carried out with the OCTAVIUS Detector 729 and OCTAVIUS Detector 1000
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7069f9889bfdccc5ff877f775cf2e90
https://doi.org/10.1118/1.4914151
https://doi.org/10.1118/1.4914151
Publikováno v:
Medical physics. 44(3)
Purpose Two-dimensional detector arrays are routinely used for constancy checks and treatment plan verification in photon-beam radiotherapy. In addition to the spatial resolution of the dose profiles, the “coverage” of the radiation field with re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::688f35acb60f143afa384056935fda69
https://pubmed.ncbi.nlm.nih.gov/28094849
https://pubmed.ncbi.nlm.nih.gov/28094849
Publikováno v:
Medical physics. 42(4)
The dosimetric properties of the OCTAVIUS Detector 1500 (OD1500) ionization chamber array (PTW-Freiburg, Freiburg, Germany) have been investigated. A comparative study was carried out with the OCTAVIUS Detector 729 and OCTAVIUS Detector 1000 SRS arra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::dd894717758102300bfbd03c1006909f
https://pubmed.ncbi.nlm.nih.gov/25832043
https://pubmed.ncbi.nlm.nih.gov/25832043
Publikováno v:
Medical physics. 40(8)
In this work, the properties of the two-dimensional liquid filled ionization chamber array Octavius 1000SRS (PTW-Freiburg, Germany) for use in clinical photon-beam dosimetry are investigated.Measurements were carried out at an Elekta Synergy and Siem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::9860c0507ceaaa79cfd4a6c84886e852
https://pubmed.ncbi.nlm.nih.gov/31625628
https://pubmed.ncbi.nlm.nih.gov/31625628
Publikováno v:
Medical Physics. Wiley
Purpose: The application of the two‐dimensional ionization chamber array Octavius 729xdr (PTW‐Freiburg, Germany) in proton beam dosimetry, consisting of 729 vented ionization chambers arranged in a 27 × 27 cm2 matrix, equivalent to the 2D‐Arra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1922787221fb262942cedd550acb0e7
https://research.rug.nl/en/publications/ea64e314-25e9-47c0-9f53-336ef2460f98
https://research.rug.nl/en/publications/ea64e314-25e9-47c0-9f53-336ef2460f98
