Results 1 to 10 of about 4,510,095 (299)

Calibration of reference KAP-meters at SSDL and cross calibration of clinical KAP-meters [PDF]

Acta Oncologica, 2009
In the summer of 2007 the secondary standard dosimetry laboratory (SSDL) in Norway established a calibration service for reference air-kerma product meter (KAP-meter). The air-kerma area product, P(KA), is a dosimetric quantity that can be directly related to the patient dose and used for risk assessment associated with different x-ray examinations ...
Per O, Hetland, Eva G, Friberg, Kirsti M, Ovrebø, Hans H, Bjerke   +3 more
openaire   +2 more sources

Self-cross Phase Calibration Method of Oversized Front Distributed Phased Array Radar

Leida xuebao, 2013
For oversized front distributed phased array radar, the conventional phased array radar calibration algorithm can not work. This paper presents the combination of self-calibration and cross-calibration algorithm.
Yan Zhou-jie, Wang Hua-bing, Chen Yuan-zheng, Zhao Yan-li   +3 more
doaj   +1 more source

Independent Calibration of Water Vapor Raman Lidar by using Additional Elastic Measurements at Water Vapor Raman Wavelength

EPJ Web of Conferences, 2016
A new method for independent calibration of water vapor Raman lidar by using additional measurements of elastic signals at water vapor Raman wavelength was introduced.
Wu Decheng, Wang Zhien, Liu Dong, Xie Chenbo, Wang Yingjian   +4 more
doaj   +1 more source

SAR Radiometric Cross-Calibration Based on Multiple Pseudoinvariant Calibration Sites With Extensive Backscattering Coefficient Range

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Synthetic aperture radar (SAR) radiometric cross-calibration achieves the calibration of uncalibrated satellites by employing calibrated satellites to illuminate the same ground targets.
Yongsheng Zhou, Xiang Chen, Qiang Yin, Fei Ma, Fan Zhang   +4 more
doaj   +1 more source

Derivation of Hyperspectral Profile of Extended Pseudo Invariant Calibration Sites (EPICS) for Use in Sensor Calibration

Remote Sensing, 2019
Reference of Earth-observing satellite sensor data to a common, consistent radiometric scale is an increasingly critical issue as more of these sensors are launched; such consistency can be achieved through radiometric cross-calibration of the sensors. A
Mahesh Shrestha, Nahid Hasan, Larry Leigh, Dennis Helder   +3 more
doaj   +1 more source

Cross-Calibration of iDXA and pQCT Scanners at Rural and Urban Research Sites in The Gambia, West Africa. [PDF]

Calcif Tissue Int, 2023
Ó Breasail M, Janha R, Zengin A, Pearse C, Jarjou L, Prentice A, Ward KA.   +6 more
europepmc   +1 more source

A cross-calibration study using a novel dual X-ray absorptiometry system for bone mineral density measurements with the European Spine Phantom. [PDF]

Quant Imaging Med Surg, 2023
Jiang Y, Wu Y, Zhang Y, Yang X, Gao J.
europepmc   +1 more source

Liver-spleen contrast standardization of gadolinium-ethoxybenzyl-diethylenetriamine penta-acetic acid-enhanced magnetic resonance imaging based on cross-calibration. [PDF]

Quant Imaging Med Surg, 2022
Mori H, Akimoto S.
europepmc   +1 more source

Cross-Calibration of Bone Mineral Densities and Body Composition between GE Lunar Prodigy and Osteosys Primus. [PDF]

J Bone Metab, 2021
Ha YC, Yoo JI.
europepmc   +1 more source

Radiometric Cross-Calibration of Hyperspectral Microsatellites Using Spectral Homogeneity Factor

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
On-orbit radiometric calibration is essential for the quantitative use of hyperspectral satellite and sensor monitoring, but its frequency is constrained by available calibration sites, especially for microsatellites with limited imaging capabilities. To
Siqing Zhang, Keyi Rao, Zhaocong Wu, Shaoju Wang, Zhixiong Dai, Ruixin Fang, Kexin Wang   +6 more
doaj   +1 more source