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We have investigated the lasing characteristics of Tm:LSO crystal in three operation regimes: continuous wave (CW), wavelength tunable and passive Q-switching based on graphene. In CW regime, a maximum output power of 0.65 W at 2054.9 nm with a slope efficiency of 21% was achieved. With a quartz plate, a broad wavelength tunable range of 145 nm was(More)
We have demonstrated a laser-diode pumped continuous-wave (CW) and passively Q-switched laser with a Nd:Sc(0.2)Y(0.8)SiO(5) (Nd:SYSO) crystal for the first time. In the CW operation, the laser was found to oscillate in tri-wavelength regime at 1074.8 nm, 1076.6 nm and 1078.2 nm, respectively. The maximum CW output power of 1.96 W was obtained, giving an(More)
Spectral properties of Nd:Sr(1-x)Y(x)F(2+x) crystals were investigated. Compared with Nd:SrF2, the spectral parameters of Nd:Sr(1-x)Y(x)F(2+x) (x=0.05,0.1) were altered in a large scale. LD-pumped true CW laser has been demonstrated in the crystals. The slope efficiency up to 43.5% in 0.43% Nd:Sr0.95Y0.05F2.05 was achieved. The system is a promising(More)
In this paper, phantoms representing sitting postures were developed and implemented in the MCNPX code to perform dose calculations. For the ground contamination case, isotropic planar source of (137)Cs was used. The male sitting phantom received an effective dose rate of 37.73 nSv h(-1) for a contamination of 30 kBq m(-2). The gonadal equivalent dose of(More)
Heterogeneous computing systems involving the graphics processing unit (GPU) and other accelerators such as the coprocessor are playing an increasingly important role in scientific computing. However, none of the existing production Monte Carlo (MC) radiation transport codes were designed to take advantage of such heterogeneous computer architectures. In(More)
The mechanisms of functional disorders in adipocytes were studied on models of hemorrhagic shock. Injection of heparin as an anticoagulant caused regional differences in animals in phosphatidylethanolamine metabolism in the plasma membranes of adipocytes of the subcutaneous fat and those of the abdominal fat (omentum). The disorders of phospholipid(More)
The effect of anisodamine on lipoprotein metabolism in the liver and hepatocyte membrane phospholipids was studied on a model of hemorrhagic shock. Preliminary injection of anisodamine raised the content of very low-density lipoproteins in blood of the central vessels and intensified the breakdown of low-density lipoproteins in the liver. The main changes(More)
PURPOSE Using the graphical processing units (GPU) hardware technology, an extremely fast Monte Carlo (MC) code ARCHERRT is developed for radiation dose calculations in radiation therapy. This paper describes the detailed software development and testing for three clinical TomoTherapy® cases: the prostate, lung, and head & neck. METHODS To obtain(More)
We have demonstrated a diode-pumped passively mode-locked femtosecond Nd,Y:CaF2 disordered crystal laser for the first time to our knowledge. By choosing appropriate Y-doping concentration, a broad fluorescence linewidth of 31 nm has been obtained from the gain linewidth-variable Nd,Y:CaF2 crystal. With the Nd,Y:CaF2 disordered crystal as gain medium, the(More)
Traditional methods of accelerating Monte Carlo (MC) calculations typically use CPUs as the computing unit. The parallelism is based upon multithreading on a multi-core processor, and message passing interface (MPI) across many processors and nodes [1]. In recent years, the hardware accelerators have been introduced by the high performance computing(More)
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