A biooptical modeling, which is based on a radiation transfer model, can be employed to simultaneously retrieve the concentration of various colour factors by multi-spectral remote sensing data, after connecting inher...A biooptical modeling, which is based on a radiation transfer model, can be employed to simultaneously retrieve the concentration of various colour factors by multi-spectral remote sensing data, after connecting inherent optical properties （absorption coefficient and backward scattering coefficient） of colour factor with apparent optical properties （remote sensing reflectivity）. At present, this method has been used in a relatively wide range of applications in the inversion of a conventional water colour factor concentration in the case II water body： applications such as chlorophyll, suspended sediment, yellow substance. On the basis of extensive field testing data of water quality, correspondingly apparent optical properties, and the full use of the existing parametric model of colour factor inherent optical properties （with the parametrization of petroleum substance inherent optical properties established in the project） the remote recognition model for oil concentration is established by introducing oil as a new water co/our factor into a biooptical remote algorithm. The estimated value of the oil concentration was obtained by solving the biooptical model, using the data measured in May 2008 and August 2009 and June 2010 in seawater. The highly accurate inversion result promises to estimate the oil concentration in water for remote sensing.展开更多
The well-de ned carbon ion beam Bragg peak is the main advantage for using a carbon ion beam for precise particle therapy.However,this advantage cannot be fully exploited due to uncertainty in the particle distributio...The well-de ned carbon ion beam Bragg peak is the main advantage for using a carbon ion beam for precise particle therapy.However,this advantage cannot be fully exploited due to uncertainty in the particle distribution range.To solve this problem,we build a secondary particle intensity(SPI)monitor system,which is completed a CeBr3 detector array,an integral ionisation chamber(IC),and a data acquisition(DAQ)system,as shown in Fig.1(a).展开更多
The Heavy Ion Medical machine(HIMM)developed by the Institute of Modern Physics is now on its operation phase.The transverse emittance of the extracted beam from the HIMM cyclotron is measured and then optimized for i...The Heavy Ion Medical machine(HIMM)developed by the Institute of Modern Physics is now on its operation phase.The transverse emittance of the extracted beam from the HIMM cyclotron is measured and then optimized for injection into the synchrotron.展开更多
The Heavy-ion Medical Machine(HIMM),which is the first commercial medical accelerator designed and built independently by the Institute of Modern Physics(IMP,CAS)in Wuwei,Gansu Province,China,had officially started cl...The Heavy-ion Medical Machine(HIMM),which is the first commercial medical accelerator designed and built independently by the Institute of Modern Physics(IMP,CAS)in Wuwei,Gansu Province,China,had officially started clinical therapy.展开更多
基金The National Natural Science Foundation of China under contract No.41271364the Key Projects in the National Science and Technology Pillar Program of China under contract No.2012BAH32B01-4the Liaoning Province Excellent Talents in Universities of China under contract No.LR2011019
文摘A biooptical modeling, which is based on a radiation transfer model, can be employed to simultaneously retrieve the concentration of various colour factors by multi-spectral remote sensing data, after connecting inherent optical properties （absorption coefficient and backward scattering coefficient） of colour factor with apparent optical properties （remote sensing reflectivity）. At present, this method has been used in a relatively wide range of applications in the inversion of a conventional water colour factor concentration in the case II water body： applications such as chlorophyll, suspended sediment, yellow substance. On the basis of extensive field testing data of water quality, correspondingly apparent optical properties, and the full use of the existing parametric model of colour factor inherent optical properties （with the parametrization of petroleum substance inherent optical properties established in the project） the remote recognition model for oil concentration is established by introducing oil as a new water co/our factor into a biooptical remote algorithm. The estimated value of the oil concentration was obtained by solving the biooptical model, using the data measured in May 2008 and August 2009 and June 2010 in seawater. The highly accurate inversion result promises to estimate the oil concentration in water for remote sensing.
文摘The well-de ned carbon ion beam Bragg peak is the main advantage for using a carbon ion beam for precise particle therapy.However,this advantage cannot be fully exploited due to uncertainty in the particle distribution range.To solve this problem,we build a secondary particle intensity(SPI)monitor system,which is completed a CeBr3 detector array,an integral ionisation chamber(IC),and a data acquisition(DAQ)system,as shown in Fig.1(a).
文摘The Heavy Ion Medical machine(HIMM)developed by the Institute of Modern Physics is now on its operation phase.The transverse emittance of the extracted beam from the HIMM cyclotron is measured and then optimized for injection into the synchrotron.
基金National Natural Science Foundation of China(U11775281,U11815301)。
文摘The Heavy-ion Medical Machine(HIMM),which is the first commercial medical accelerator designed and built independently by the Institute of Modern Physics(IMP,CAS)in Wuwei,Gansu Province,China,had officially started clinical therapy.
