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(3.173 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。
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...
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...
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 ...
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 ...
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...
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...
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-...