Results 141 to 150 of about 192,375 (290)

Astrometric Observations of a Near-Earth Object Using the Image Fusion Technique [PDF]

, 2021
Yi-Gong Zhang, Jiancheng Wang, Jie Su, X. Cheng, Zhenjun Zhang   +4 more
openalex   +1 more source

Assessing HyperSight iterative CBCT for dose calculation in online adaptive radiotherapy for pelvis and breast patients compared to synthetic CT

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose/objectives Recent technological advancements have increased efficiency for clinical deliverability of online‐adaptive‐radiotherapy (oART). Previous cone‐beam‐computed‐tomography (CBCT) generations lacked the ability to provide reliable Hounsfield‐units (HU), thus requiring oART workflows to rely on synthetic‐CT (sCT) images derived ...
Jingwei Duan, Joel A. Pogue, Dennis N. Stanley, Sui Shen, Natalie N. Viscariello, Carlos E. Cardenas, Richard A. Popple, Joseph Harms   +7 more
wiley   +1 more source

Impact of enhanced leaf model on dose calculation accuracy in single‐isocenter multitarget stereotactic radiosurgery treatments

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Single‐isocenter multitarget (SIMT) radiosurgery has become increasingly popular as advancement in planning and delivery systems have made this approach clinically viable. With targets varying in size and distance from isocenter, SIMT plans are highly complex with dynamic multileaf collimator (MLC) motion.
Hem Moktan, Hongyu Jiang, H. Harold Li, Kenny Guida   +3 more
wiley   +1 more source

Stream and sporadic meteoroids associated with Near Earth Objects [PDF]

, 2012
T. J. Jopek, I. P. Williams
openalex   +1 more source

NEOMOD 2: An updated model of Near-Earth Objects from a decade of Catalina Sky Survey observations [PDF]

, 2023
David Nesvorný, D. Vokrouhlický, F. C. Shelly, Rogerio Deienno, W. F. Bottke, E. Christensen, Robert Jedicke, Shantanu P. Naidu, Steven R. Chesley, P. W. Chodas, Davide Farnocchia, Mikael Granvik   +11 more
openalex   +1 more source

Impact of acceleration treatment on treatment plan and delivery qualities in tomotherapy for lung cancer

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Acceleration treatment (AT) is a novel treatment planning parameter introduced in the tomotherapy‐dedicated treatment planning system, Precision. This study explores the effects of AT on tomotherapy plans using helical (TomoHelical) and direct (TomoDirect) irradiation techniques.
Ryosuke Shirata, Tatsuya Inoue, Yugo Ebinuma, Akihiro Yamano, Takayuki Yagihashi, Hironori Nagata, Yumiko Minagawa, Yuki Mukai, Akiko Sato, Motoko Omura   +9 more
wiley   +1 more source

On the Lunar Origin of Near-Earth Asteroid 2024 PT5

The Astrophysical Journal Letters
The near-Earth asteroid (NEA) 2024 PT5 is on an Earth-like orbit that remained in Earth's immediate vicinity for several months at the end of 2024. PT5's orbit is challenging to populate with asteroids originating from the main belt and is more commonly ...
Theodore Kareta, Oscar Fuentes-Muñoz, Nicholas Moskovitz, Davide Farnocchia, Benjamin N. L. Sharkey   +4 more
doaj   +1 more source

Erratum to: Determination of the Motion Parameters of Near-Earth Objects from Position Measurements Performed at the Terskol Observatory [PDF]

, 2023
P. A. Levkina, И. Н. Чувашов
openalex   +1 more source

In vivo transit dosimetry methodology for whole breast intensity modulated radiation therapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background In vivo transit dosimetry using an electronic portal imaging device (EPID‐IVTD) is an important tool for verifying the accuracy of radiation therapy treatments. Despite its potential, the implementation of EPID‐IVTD in breast intensity modulated radiation therapy (IMRT) treatments has not yet been standardized, limiting its clinical
Lucia Zirone, Elisa Bonanno, Giuseppina R. Borzì, Nina Cavalli, Alessia D'Anna, Andrea Girlando, Martina Pace, Giuseppe Stella, Carmelo Marino   +8 more
wiley   +1 more source

Long-term Monitoring of Didymos with the LCOGT Network and MRO after the DART Impact

The Planetary Science Journal
The world’s first planetary defense test mission was carried out in late 2022 by NASA’s Double Asteroid Redirection Test (DART) mission. The main DART spacecraft, which was accompanied by the ASI-provided LICIACube cubesat, intentionally impacted ...
Tim Lister, Cora Constantinescu, William Ryan, Eileen Ryan, Edward Gomez, Liz Phillips, Agata Rożek, Helen Usher, Brian P. Murphy, Joseph Chatelain, Sarah Greenstreet   +10 more
doaj   +1 more source