Results 131 to 140 of about 4,159,704 (407)

Implementation of needle‐tracking technology for real‐time transrectal ultrasound‐guided interstitial gynecological HDR brachytherapy: A feasibility study

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose To investigate the feasibility of adapting a commercial prostate biopsy system for transrectal ultrasound (TRUS)‐guided hybrid gynecological (GYN) high‐dose‐rate (HDR) brachytherapy (BT). Leveraging 3D‐TRUS and MR image fusion, the prototype system aims to improve real‐time needle placement accuracy.
Lindsey H. Bloom   +8 more
wiley   +1 more source

Miniature Twist/Rotation Fabry Perot Sensor Based on a Four-Core Fiber

open access: yesProceedings, 2018
This paper presents a miniature Fabry Perot twist/rotation sensor. The presented sensor consists of a single lead-in multicore fiber, which has four eccentrically positioned cores, a special asymmetrical microstructure, similar to a truncated cylinder ...
Vedran Budinski, Denis Donlagic
doaj   +1 more source

Resonance enhancement of magnetic Faraday rotation

open access: yes, 2008
Magnetic Faraday rotation is widely used in optics. In natural transparent materials, this effect is very weak. One way to enhance it is to incorporate the magnetic material into a periodic layered structure displaying a high-Q resonance.
Figotin, Alex, Vitebskiy, Ilya
core  

Wave optics for rotating stars [PDF]

open access: yes
12 pages including 8 figures (plus appendices)
Bonga, B.P.   +2 more
openaire   +2 more sources

An investigation into the feasibility and efficacy of stereotactic radiosurgery for 1–3 cm single brain lesions on the ring‐mounted Halcyon LINAC

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose An evaluation of the accuracy, safety, and efficiency of the Halcyon ring delivery system (RDS) for stereotactic radiosurgery (SRS) treatment to relatively small (1–3 cm) brain lesions. Methods After completing the extensive in‐house quality assurance checks including Winston–Lutz test and independent dose verification via MD Anderson ...
Kate Hazelwood   +5 more
wiley   +1 more source

Study on rotation angle and three-zone deformation characterization of hinged structure of mining overburden rock based on OFDR

open access: yesMeitan kexue jishu
In order to study the fiber optical strain characterization method of the overlying rock structure during mining in a certain mine in northern Shannxi, based on the engineering geological conditions of 12217 working face in Buertai Mine, the strain ...
Qi LIU   +4 more
doaj   +1 more source

Optics used to measure torque at high rotational speeds [PDF]

open access: yes, 1964
In measuring torque transmitted by a high speed rotation shaft, an apparatus has been devised which includes a shaft, an optical system and readout servomechanism.
Krsek, A., Jr., Tieferman, M.
core   +1 more source

Electronic Theory for the Nonlinear Magneto-Optical Response of Transition-Metals at Surfaces and Interfaces: Dependence of the Kerr-Rotation on Polarization and on the Magnetic Easy Axis

open access: yes, 1995
We extend our previous study of the polarization dependence of the nonlinear optical response to the case of magnetic surfaces and buried magnetic interfaces.
A. Carl   +28 more
core   +1 more source

AAPM Task Group No. 249.B—Essentials and guidelines for clinical medical physics residency training program

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract The establishment of guidelines and curriculum standards for medical physics residency training is a critical component of setting expectations and competencies for the profession. Since the last publication of these standards, residency training has become integrated into the eligibility criteria for most medical physics certification bodies.
Jonathon A. Nye   +16 more
wiley   +1 more source

Development of device for optical measurement of spin rate of wind tunnel models [PDF]

open access: yesScientific Technical Review, 2018
In wind tunnel tests of free-spinning missile models it is of interest to measure the rotation rate of the models. As it is essential to provide free rotation of such models with minimum friction in the bearings, the instrumentation for measuring the ...
Ilić Goran   +2 more
doaj  

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