scholarly journals Technical Note: Out-of-field dose measurement at near surface with plastic scintillator detector

2016 ◽  
Vol 17 (5) ◽  
pp. 542-547 ◽  
Author(s):  
Alexandra Bourgouin ◽  
Nicolas Varfalvy ◽  
Louis Archambault
Keyword(s):  
Plastic Scintillator ◽  
Technical Note ◽  
Dose Measurement ◽  
Near Surface ◽  
Scintillator Detector

scholarly journals Technical Note: Evaluation of plastic scintillator detector for small field stereotactic patient-specific quality assurance

2017 ◽  
Vol 44 (10) ◽  
pp. 5509-5516 ◽  
Author(s):  
Yujiao Qin ◽  
Stephen J. Gardner ◽  
Joshua Kim ◽  
Yimei Huang ◽  
Ning Wen ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Plastic Scintillator ◽  
Technical Note ◽  
Patient Specific ◽  
Small Field ◽  
Scintillator Detector

Response of a plastic scintillator detector to light ions with energies up to hundreds of MeV

1985 ◽  
Vol 239 (3) ◽  
pp. 527-528 ◽  
Author(s):  
P.V. Degtyarenko ◽  
E.A. Doroshkevitch ◽  
Yu.V. Efremenko ◽  
V.B. Gavrilov ◽  
F.M. Khassanov ◽  
...  
Keyword(s):  
Plastic Scintillator ◽  
Light Ions ◽  
Scintillator Detector

scholarly journals Technical Note: Novel method for water vapour monitoring using wireless communication networks measurements

2009 ◽  
Vol 9 (7) ◽  
pp. 2413-2418 ◽  
Author(s):  
N. David ◽  
P. Alpert ◽  
H. Messer
Keyword(s):  
Wireless Communication ◽  
Water Vapour ◽  
Communication Networks ◽  
Weather Conditions ◽  
Technical Note ◽  
Base Stations ◽  
Propagation Path ◽  
High Temporal Resolution ◽  
Wireless Communication Networks ◽  
Near Surface

Abstract. We propose a new technique that overcomes the obstacles of the existing methods for monitoring near-surface water vapour, by estimating humidity from data collected through existing wireless communication networks. Weather conditions and atmospheric phenomena affect the electromagnetic channel, causing attenuations to the radio signals. Thus, wireless communication networks are in effect built-in environmental monitoring facilities. The wireless microwave links, used in these networks, are widely deployed by cellular providers for backhaul communication between base stations, a few tens of meters above ground level. As a result, if all available measurements are used, the proposed method can provide moisture observations with high spatial resolution and potentially high temporal resolution. Further, the implementation cost is minimal, since the data used are already collected and saved by the cellular operators. In addition – many of these links are installed in areas where access is difficult such as orographic terrain and complex topography. As such, our method enables measurements in places that have been hard to measure in the past, or have never been measured before. The technique is restricted to weather conditions which exclude rain, fog or clouds along the propagation path. Strong winds that may cause movement of the link transmitter or receiver (or both) may also interfere with the ability to conduct accurate measurements. We present results from real-data measurements taken from two microwave links used in a backhaul cellular network that show convincing correlation to surface station humidity measurements. The measurements were taken daily in two sites, one in northern Israel (28 measurements), the other in central Israel (29 measurements). The correlation between the microwave link measurements and the humidity gauges were 0.9 and 0.82 for the north and central sites, respectively. The Root Mean Square Differences (RMSD) were 1.8 g/m3 and 3.4 g/m3 for the northern and central site measurements, respectively.

scholarly journals Technical Note: Simple formulations and solutions of the dual-phase diffusive transport for biogeochemical modeling

2014 ◽  
Vol 11 (14) ◽  
pp. 3721-3728 ◽  
Author(s):  
J. Y. Tang ◽  
W. J. Riley
Keyword(s):  
Steady State ◽  
Tracer Diffusion ◽  
Technical Note ◽  
Analytical Models ◽  
Dual Phase ◽  
Near Surface ◽  
Solution Algorithms ◽  
Biogeochemical Models ◽  
Volume Approximation ◽  
Multi Phase

Abstract. Representation of gaseous diffusion in variably saturated near-surface soils is becoming more common in land biogeochemical models, yet the formulations and numerical solution algorithms applied vary widely. We present three different but equivalent formulations of the dual-phase (gaseous and aqueous) tracer diffusion transport problem that is relevant to a wide class of volatile tracers in land biogeochemical models. Of these three formulations (i.e., the gas-primary, aqueous-primary, and bulk-tracer-based formulations), we contend that the gas-primary formulation is the most convenient for modeling tracer dynamics in biogeochemical models. We then provide finite volume approximation to the gas-primary equation and evaluate its accuracy against three analytical models: one for steady-state soil CO2 dynamics, one for steady-state soil CH4 dynamics, and one for transient tracer diffusion from a constant point source into two different sequentially aligned medias. All evaluations demonstrated good accuracy of the numerical approximation. We expect our result will standardize an efficient mechanistic numerical method for solving relatively simple, multi-phase, one-dimensional diffusion problems in land models.

scholarly journals Technical note: TROG 15.01 SPARK trial multi‐institutional imaging dose measurement

2017 ◽  
Vol 18 (5) ◽  
pp. 358-363 ◽  
Author(s):  
Kimberley Legge ◽  
Peter B. Greer ◽  
Paul J. Keall ◽  
Jeremy T. Booth ◽  
Sankar Arumugam ◽  
...  
Keyword(s):  
Technical Note ◽  
Dose Measurement ◽  
Imaging Dose

SU-F-BRE-07: Experimental Validation of a Lung SBRT Technique Using a Novel, True Volumetric Plenoptic-Plastic-Scintillator Detector

2014 ◽  
Vol 41 (6Part23) ◽  
pp. 392-392
Author(s):  
M Goulet ◽  
M Rilling ◽  
L Gingras ◽  
S Beddar ◽  
L Beaulieu ◽  
...  
Keyword(s):  
Experimental Validation ◽  
Plastic Scintillator ◽  
Lung Sbrt ◽  
Scintillator Detector

Design and Testing of a Position-Sensitive Plastic Scintillator Detector for Fast Neutron Imaging

2006 ◽  
Vol 53 (6) ◽  
pp. 3894-3903 ◽  
Author(s):  
Ulisse Bravar ◽  
Paul J. Bruillard ◽  
Erwin O. Flckiger ◽  
John R. Macri ◽  
Mark L. McConnell ◽  
...  
Keyword(s):  
Fast Neutron ◽  
Plastic Scintillator ◽  
Neutron Imaging ◽  
Position Sensitive ◽  
Design And Testing ◽  
Scintillator Detector
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