Results 11 to 20 of about 637,149 (308)
Treatment planning with a 2.5 MV photon beam for radiation therapy
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose 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) beyond it.
Navid Khaledi +5 more
wiley +1 more source
Volume staging for arteriovenous malformation SRS treatment using VMAT
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Volume staging involves dividing the target volume into smaller parts and treating each part separately. In this study, the feasibility of volume‐staged stereotactic radiosurgery (VS‐SRS) on a linear accelerator using volumetric modulated arc therapy (VMAT) and a frameless patient positioning system is investigated.
Claudia Mendez, Ermias Gete
wiley +1 more source
The impact on education of Astronomical Olympiads and the International Olympiad on Astronomy and Astrophysics [PDF]
EPJ Web of Conferences, 2019 Astronomical Olympiads and similar competitions for highschool students have been run in some countries for more than half a century, and last year marked the tenth anniversary of the largest such competition with global reach, the International Olympiad
Stachowski Greg, Sule Aniket
doaj +1 more source
A straightforward estimation of the maximum sunspot number for cycle 23 [PDF]
Annales Geophysicae, 1999 Using the annual number of geomagnetically quiet days (aa < 20 γ) for the year after the solar minimum, this precursor method predicts that the maximum sunspot number for cycle 23 will be 140 ± 32, indicating that cycle 23 will be similar to cycles
B. Mendoza, B. Mendoza, J. Ramírez
doaj +1 more source
Superluminous supernovae: an explosive decade [PDF]
Astronomy and Geophysics, Volume 62, Issue 5, October 2021, Pages
5.34-5.42, 2021 I review our current understanding of superluminous supernovae, mysterious events 100 times brighter than conventional stellar explosions.
arxiv +1 more source
Laboratory Astrophysics and the State of Astronomy and Astrophysics [PDF]
, 2009 Laboratory astrophysics and complementary theoretical calculations are the foundations of astronomy and astrophysics and will remain so into the foreseeable future.
: +13 more
core +3 more sources
Graduate Program in Astrophysics in Split [PDF]
, 2006 Beginning in autumn 2008 the first generation of astronomy master students will start a 2 year course in Astrophysics offered by the Physics department of the University of Split, Croatia (http://fizika.pmfst.hr/astro/english/index.html).
Krajnovic, Davor
core +2 more sources
The future of astronomy with small satellites [PDF]
Nature Astronomy volume 4, pages 1031-1038 (2020), 2020 The number of small satellites has grown dramatically in the past decade from tens of satellites per year in the mid-2010s to a projection of tens of thousands in orbit by the mid-2020s. This presents both problems and opportunities for observational astronomy.
arxiv +1 more source
Cassini ISS mutual event astrometry of the mid-sized Saturnian satellites 2005-2012 [PDF]
, 2014 Reproduced with permission from Astronomy & Astrophysics ...
Acton +19 more
core +3 more sources
Galaxies, 2021 Radio astronomy commenced in earnest after World War II, with Australia keenly engaged through the Council for Scientific and Industrial Research. At this juncture, Australia’s Commonwealth Solar Observatory expanded its portfolio from primarily studying
Alister W. Graham +4 more
doaj +1 more source