搜索结果: 91-105 共查到“知识库 核探测技术与核电子学”相关记录280条 . 查询时间(0.453 秒)
小型堆研发及核应急准备进展
小型核反应堆 核应急 应急准备 应急计划区
2014/3/28
小型核反应堆具有良好的安全特性、模块化建造方式和广泛的应用领域，已成为国际上重要的核能研发工作。相对于百万千瓦级大型核电站而言，外部约束条件（应急计划是其中之一）对小型堆的经济性具有更大的影响，尤其是对需要靠近用户的小型核反应堆（例如供水、供热等）更是如此。作为克服这种约束条件的一个重要策略，小型核反应堆在设计上追求更高的安全特性。对于需要靠近用户的小型核反应堆（例如供热、供汽等），将应急计划区限...
核主泵制造关键科学问题研究取得重要进展
核主泵制造 关键科学问题 研究进展
2013/1/18
近日，973计划“核主泵制造的关键科学问题”项目年度总结报告会在杭州召开，科技部基础研究司、国家核电技术公司、973计划顾问、咨询组相关专家、项目组成员，以及“大型先进压水堆核电站”核电重大专项屏蔽电机主泵承制单位等50余人参加了会议。
为扩展中国原子能科学研究院高压倍加器的ns脉冲束的能区范围，研制了一种新的聚束装置，使该加速器从仅能提供300 keV ns脉冲束，扩展到能提供100～400 keV整个能区的ns脉冲束。
日本福岛第一核电站发生事故后，造成大量的放射性物质释放。为准确评估事故的释放量，本文根据美国公布的航测137Cs地面沉积浓度图和日本福岛第一核电站事故发生后观测的气象数据，利用拉格朗日烟团模式反推137Cs的释放量，并通过计算估算日本福岛第一核电站核事故向大气释放的131I当量，约为1.07×1018 Bq，估算结果与日本政府公布的估算结果接近。
Charged-particle multiplicity and transverse energy in Pb-Pb collisions at sqrt(snn) = 2.76 TeV with ALICE
Charged-particle multiplicity transverse energy Pb-Pb collisions
2011/7/21
The measurements of charged-particle multiplicity and transverse energy at mid-rapidity in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV are reported as a function of centrality. The fraction of the inelas...
Pion productions by proton and Helium-3 on Au197 target at beam energies of 2.8, 5, 10 and 16.587 GeV/nucleon
Pion productions beam energies nucleon Nuclear Theory
2011/7/22
Based on a Relativistic Boltzmann-Uehling- Uhlenbeck transport model, proton and $^{3}$He induced reactions on $^{197}$Au target at beam energies of 2.8, 5, 10 and 16.587 GeV/nucleon are studied. It i...
D meson nuclear modification factors in Pb-Pb collisions at {\surd}sNN = 2.76 TeV, measured with the ALICE detector
D meson nuclear Pb-Pb collisions ALICE detector
2011/7/21
The ALICE experiment has measured the D meson production in pp and Pb-Pb collisions at the LHC at {\surd}s = 7 and 2.76 TeV and {\surd}sNN = 2.76 TeV respectively, via the exclusive reconstruction of ...
STAR Measurements of Bottom to Charm Ratio and Heavy Quark Interaction with the QCD Medium through Non-Photonic Electron-Hadron Correlations
STAR Charm Ratio Heavy Quark Interaction QCD Medium
2011/7/20
We present STAR measurements of relative charm and bottom contributions to NPE from $p+p$ collisions at $\sqrt{s}$= 200 and 500 GeV energies. We report the total bottom quark production cross section ...
Performance simulation of a MRPC-based PET Imaging System
Performance simulation MRPC-based PET Imaging System
2011/7/21
The low cost and high resolution gas-based Multi-gap Resistive Plate Chamber (MRPC) opens a new possibility to find an efficient alternative detector for Time of Flight (TOF) based Positron Emission T...
We present the first results using the STAR detector from the Beam Energy Scan (BES) program at the Relativistic Heavy-Ion Collider (RHIC). In this program, Au ion collisions at center of mass energie...
Gluon polarization measurements with inclusive jets at STAR
Gluon polarization inclusive jets STAR
2011/7/20
At RHIC kinematics, polarized jet hadroproduction is dominated by $gg$ and $qg$ scattering, making the jet double longitudinal spin asymmetry, $A_{LL}$, sensitive to gluon polarization in the nucleon....
ALICE detector upgrades
ALICE detector upgrades
2011/7/21
The LHC with its unprecedented energy offers unique opportunities for groundbreaking measurements in p+p, p+A and A+A collisions even beyond the baseline experimental designs. ALICE is setting up a pr...
Charged particle directed flow in Pb-Pb collisions at sqrt{s_NN} = 2.76 TeV measured with ALICE at the LHC
Charged particle directed flow Pb-Pb collisions sqrt ALICE
2011/7/20
Charged particle directed flow at midrapidity, |eta|<0.8, and forward rapidity, 1.7 < |eta|<5.1, is measured in Pb-Pb collisions at sqrt{s_NN} = 2.76 TeV with ALICE at the LHC. Directed flow is report...
Resonance measurements in pp and Pb--Pb collisions with the ALICE detector
Resonance measurements pp Pb--Pb collisions ALICE detector
2011/7/21
The study of resonance production in pp collisions helps understanding hadronization mechanisms and tuning the QCD-inspired particle production models. In Pb--Pb collisions, resonances allow one to pr...
Heavy-flavour production in Pb-Pb collisions at the LHC, measured with the ALICE detector
Pb-Pb collisions LHC ALICE detector Heavy-flavour production
2011/7/20
We present the first results from the ALICE experiment on the nuclear modification factors for heavy-flavour hadron production in Pb-Pb collisions at sqrt{s_NN}=2.76 TeV. Using proton-proton and lead-...