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北京大学物理学院重离子物理研究所招聘1名劳动合同制工作人员
为了实现对大口径碳化硅非球面反射镜的表面改性层硅的高精度快速抛光,设计制作了高能量大束流氩离子枪。通过热灯丝和阳极栅网的组合实现氩原子的离子化,通过调节氩离子所处区域的电位来确定离子的能量,通过静电聚焦透镜来实现氩离子的聚焦。调节灯丝和阳极栅网之间的电压达到离子化率的最大化,调节静电聚焦透镜的尺寸和相对位置实现氩离子的高透过率。氩离子枪的材料选择既需满足超高真空使用又要避免产生真空放电。通过理论计...
The physical mechanisms of periodic separation and relaxation of electric charges within aerosol particles possessing the properties the short-circuited batteries can be extremely diverse. With use of...
We investigate the quantum hadrodynamic equation of state for neutron stars (with and without including hyperons) in the presence of strong magnetic fields.
We deduce approximate equations of state from experimental measurements in proton-proton and proton-antiproton collisions.
Neutron rich matter is central to many fundamental questions in nuclear physics and astrophysics. Moreover, this material is being studied with an extraordinary variety of new tools such as the Facili...
We study the photon-triggered light and heavy meson production in both p+p and A+A collisions. We find that a parton energy loss approach that successfully describes inclusive hadron attenuation in nu...
We study the Wigner functions of the nucleon which provide multidimensional images of the quark distributions in phase space. These functions can be obtained through a Fourier transform in the transve...
With the new viscous hydrodynamic + hadron cascade hybrid code VISHNU, a rather precise (O(25%)) extraction of the QGP shear viscosity (eta/s)_QGP from heavy-ion elliptic flow data is possible if the ...
Fluctuations in initial parton density give rise to fluctuating geometrical shapes and hot spots in high energy heavy ion collisions.
We studied nucleus-nucleus collision in strong magnetic field based on a transport model. It is found that neutrons and protons can be separated from a nucleus by strong magnetic field and neutron-ric...
The $\pi^0 \gamma$ invariant mass distribution spectra in the $ (\gamma, \pi^0\gamma) $ reaction were measured by TAPS/ELSA collaboration to look for the hadron parameters of the $\omega$ meson in Nb ...
Using the quantum molecular dynamics model, we study the nuclear dynamics at the balance energy of mass asymmetric colliding nuclei by keeping the total mass of the system fixed as 40, 80, 160, and 24...
Using the quantum molecular dynamics model, we study the role of mass asymmetry of colliding nuclei on the fragmentation at the balance energy and on its mass dependence. The study is done by keeping ...
A Skyrme-type momentum-dependent nucleon-nucleon force distinguishing isospin effect is parameterized and further implemented in the Lanzhou Quantum Molecular Dynamics (LQMD) model for the first time,...

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