高能强子散射截面的参数化公式

本文概述了多种高能强了散射截面数，潜ＣＥＲＮ－ＨＥＲＡ截面数据库，并在此基础上推荐了一套高能强子散射截面的计算公式。     

北京谱仪端盖簇射计数器的能量分辨及其模拟研究

利用北京谱仪Ｊ／、Ｄｓ能量下端盖簇射计数器（ＥＳＣ）内的ｅ＋ｅ－末态事例，研究了电子簇射在ＥＳＣ中单个计数管的脉冲幅度分布、击中单元总数分布和各读出层的击中单元数分布、沉积能量分布和总沉积能量的分布；得到能量分辨约为２２％在ＳＯＢＥＲ程序框架的基础上采用双高斯分布描述单计数管脉冲幅度谱，ＥＧＳ４描述电磁簇射，考虑了三维磁场分布，完成了ＥＳＣ蒙特卡罗模拟程序，模拟结果与实验数据符合很好。     

HT—6B耻的ECE外差接收系统

本文介绍了在ＨＴ－６Ｂ上使用的一套五道外差接收机系统，它用于该装置的ＥＣＥ信号测量，该系统具有研究等离子体温度参数的时空演化能力，空间分辨可达０．５ｃｍ，时间分辨达５０μｓ。它还具有沿装置小半径垂直中心弦力向观察ＥＣＥ信号的能力。因而，可以配合逐点扫描纵场，使系统具有频谱测量的性能，且可用于研究低杂波驱动等离子体中高能电子的性质及其分布。     

HT－6B上的ECE外差接收系统

本文介绍了在ＨＴ－６Ｂ上使用的一套五道外差接收机系统，它用于该装置的ＥＣＥ信号测量。该系统具有研究等离子体温度参数的时空演化能力，空间分辨可达０．５ｃｍ，时间分辨达５０μｓ。它还具有沿装置小半径垂直中心弦方向观察ＥＣＥ信号的能力。因而，可以配合逐点扫描纵场，使系统具有频谱测量的性能，且可用于研究低杂波驱动等离子体中高能电子的性质及其分布。     

多相氧载体CoO－MgO和氧分子作用的ESR研究

用ＥＳＫ研究多相氧载体ＣｏＯ－ＭｇＯ表面上氧的吸附作用，发现在７７－１５０Ｋ温度范围内表面Ｃｏ￣（２＋）离子和Ｏ＿２的结合是可逆的，吸附产生Ｃｏ￣（３＋）－自由基加合物有超精细结构的ＥＳＲ谱；当温度增加，吸附态自由基发生转移并稳定在Ｍｇ￣（２＋）离子上形成Ｍｇ￣（２＋）－Ｏ自由基，文中着重讨论Ｃｏ￣（３＋）－自由基的电子结构和成键本质，认为自由基是通过自旋成对的方式形成的，由于σ－л键作用引起的自旋极化以及由于电子离域作用而引起的偶极作用与ＥＳＲ制的超精细结构线产生有关。     

潘诺夫斯基教授荣获中国国家国际科技合作奖

 ２００１年４月５日中华人民共和国科技部举行隆重颁奖仪式,将国家科技合作奖奖牌正式授予潘诺夫斯基教授。众所周知,潘诺夫斯基（Ｗ．Ｋ．Ｈ．Ｐａｎｏｆｓｋｙ）教授系高能物理学家,无论作为一名科学家,还是任所长领导一职,在其职业生涯中,都充分显示出他不仅是一位著名的物理学家,而且还是一位杰出的加速器建造专家。在他担任所长期间,斯坦福直线加速器中心,（ＳＴＡＮＦＯＲＤＬＩＮＥＡＲＡＣＣＥＬＥＲＡＴＯＲＣＥＮＴＥＲ,简称ＳＬＡＣ）成功地建造了ＳＰＥＡＲ,ＰＥＰ和ＳＬＣ对撞机,并取得了许多有趣的重要物理成果,包括３个诺贝尔物理奖：发现质子并不是一个点粒子而有内部构造.     

ECR微波放电氩离子输运过程的研究

建立了电子回旋共振（ＥＣＲ）微波放电等离子体中离子输运过程的蒙特卡罗模型，考虑了离子与中性原子的电荷交换碰撞和弹性碰撞，以及精确依赖于离子能量的电荷交换和动量转移截面，模拟了源于氩气ＥＣＲ微波放电的氩离子向衬底输运的过程，得到与实验报道相符的模拟结果。     

电子回旋共振微波等离子体化学气相沉积

本文叙述了电子回旋共振微波等离子体化学气相沉积（ＥＣＲＰＣＶＤ）的工作原理、特点及其应用．ＥＣＲＰＣＶ Ｄ由放电室、淀积室、微波系统、磁场线圈、气路与真空系统组成．处于放电室的等离子体在磁场中做回旋运动，使电子的回旋运动频率与微波频率相同；处于回旋共振条件下的电子有效地吸收微波功率而获得高的能量，从而产生高活性和高密度的等离子体．电离度大于１０％，电子密度为１０１３ｃｍ３．ＥＣＲＰＣＶＤ可在低的气体流量、衬底不加热的情况下高速淀积高质量薄膜．以该技术淀积的Ｓｉ，Ｎ４，ＳｉＯ２薄膜可分别与高温ＣＶＤ的Ｓｉ３Ｎ４高温热氧化的ＳｉＯ２相比拟．ＥＣＲＰＣＶＤ淀积ａ－Ｓｉ：Ｈ淀积速率为通常ＣＶＤ的２０倍，而性能与射频ＣＶＤ淀积的ａ－Ｓｉ：Ｈ相当．ＥＣＲＰＣＶＤ 已成功用于淀积多种薄膜。     

二维核磁共振谱解析及其应用

２ＤＮＭＲ在波谱学的化学应用中占据首要位置。本文简述了ＣＯＳＹ，ＬＲＣＯＳＹ，ＣＯＳＹＤＥＣ，ＳＥＣＳＹ，ＤＱＣ－ＣＯＳＹ，ＲＣＴ，ＩＮＡＤＩＱＵＡＴＥ，ＲＥＬＡＹ，ＩＮＶＥＲＳＥ，ＮＯＥＳＹ，ＨＯＥＳＹ，ＯＨＡＨＡ，ＲＯＥＳＹ，ＨＭＱＣ，ＨＭＢＣ等谱的形状，指认步骤及其应用。     

RE1—xTxMnO3氧化物的结构，电磁特性和巨磁电阻

ＲＥＭｎＯ３（ＲＥ＝Ｌａ，Ｐｒ，Ｎｄ，Ｃｄ等）具有钙钛矿结构。如用二价碱土金属部分替代稀土元素，可形成掺杂锰氧化物ＲＥ１－ｘＴｘＭｎＯ３（Ｔ＝Ｃａ，Ｓｒ，Ｂａ，Ｐｂ）。随掺杂量的增加，样品的结构和电磁性能都有很大变化。近年来在这类氧化物中还发现巨大的负磁电阻效应，其值可达１０６％。这类材料显示的复杂物理现象和可能的应用前景引起人们很大的兴趣。本文将概括的介绍这类氧化物的晶格结构，电子结构，电磁性能及其巨磁电阻随掺杂变化的实验结果，并对其可能的机理进行探讨。     

HL-1M装置边缘参数测量

在HL－1M装置上利用马赫／郎缪尔探针分别在欧姆放电,低杂波注入,中性束注入,离子回旋加热和电子回旋加热等情况下测量下刮离层和等离子体边缘的极向流速度和电场,得到了它们的径向分布,研究了LHW,NBI,ICRH和ECRH对改善等离子体约束性能,边缘粒子的径向传输的影响。     

HL—1M托卡马克脉冲超声分子束注入等离子体及杂质特性研究

文内叙述了在ＨＬ－１Ｍ托卡马克脉冲分子束注入实验中观测到的等离子体和杂质行为。分子束注入减小了杂质辐射,有效地提高了电子密度,改善了等离子体的约束性能。     

HL-1M装置的杂质线辐射特性

给出了HL－1M装置放电实验中杂质线辐射的测量结果。氢分子束注入, 子体电子密度n。明显提高,而杂质浓度大大降低。对应于分子束注入脉冲,分子束的“团族”效应引起了杂质辐射峰化时间的错位。     

HL—1装置的金属杂质沉积实验

采用立体探针与二次离子质谱计（ＳＩＭＳ）分析相结合，对ＨＬ－１装置刮削层空间的杂质沉积特性和分布规律进行了实验研究。测量了在石墨活动孔栏条件下，立体针表面杂质沉积特性和分布规律进行了实验研究。测量了在石墨活动孔栏条件下，立体探针表面杂质沉积的径向分布，纵向分布，极向分布和Ｈ＾＋剖面分布。并讨论了实验结果。     

About bursty behaviour, coherent structures, wide scrape-off layer and large parallel flows in the edge of the Tore Supra tokamak

We present the measurements of plasma characteristics in the scrape-off layer (SOL) of the Tore Supra tokamak performed by means of reciprocating Langmuir probe. The probe is inserted into the machine from top. As the radial distance from last closed flux surface (LCFS) increases, ion saturation current exhibits stronger bursty character and its probability density function becomes increasingly skewed towards positive values. At the same time, burst duration and inter-burst time increase dramatically. We explain this phenomenon by radial propagation and dynamics of the ensemble of coherent turbulent structures of different size. The results of two-dimensional fluid modelling based of flux-driven interchange instability mechanism are in excellent agreement with experimental results. We obtained clear experimental evidence that most of the coherent structures are formed in poloidally localized region of the SOL around the outboard midplane. If the probe is magnetically connected to this region, the SOL is very wide and we detect bursty behaviour in the far SOL. On the other hand, if the probe is not magnetically connected to the outboard midplane region (magnetic field lines are intercepted by the outboard limiter), then the SOL is very thin and bursty behaviour is much less prominent. Detection of bursty behaviour in the far SOL is correlated with existence of wide SOL pointing on important role of bursty transport by means of coherent turbulent structures in establishing the width of the SOL in tokamaks. The measurements of parallel flow in the SOL shows that plasma particle radial flux coming from confinement region to the SOL is mostly poloidally localized around the outboard midplane. Our estimations show that more than 80% of plasma particle radial flux is coming from confinement region to the SOL in poloidally localized region — approximately ±15° — around the outboard midplane. Presented at the Workshop “Electric Fields, Structures and Relaxation in Edge Plasmas”, Roma, Italy, June 26–27, 2006.     

Nonlinear collisional monte carlo simulations for high-temperature SOL plasma

A nonlinear Monte Carlo collisional model is applied to to investigate scrape-off layer (SOL) plasmas with high temperatures. In the proposed SOL modeling, A steady state SOL plasma, which satisfies the particle and energy balances and neutrality constraint, is determined in terms of total particle and heat fluxes across the separatrix, the edge plasma temperature, the secondary electron emission coefficient, and the SOL size. A conductive heat flux into the SOL is effectively modeled via random exchange of source particles and the SOL plasma particles. It is found that the potential drop and the electron transmission factor in the collisional SOL plasma are in good agreement with the theoretical prediction. The cooling effect of secondary electrons in the high temperature divertor operation is investigated. In such a collisionless plasma, the present nonlinear collision model is useful because the electron distribution function deviates far from a Maxwellian distribution. In the presence of strong secondary electron emission, the electron sheath energy transmission factor in the collisionless regime is found to be significantly smaller than that in the collisional regime. This fact suggests that a high-temperature divertor operation can be possible.     

Determination of Plasma Position Using Poloidal Flux Loops and Comparison With Magnetic Probe Measurement in IR-T1 Tokamak

In this paper, we present two magnetic techniques for the measurement of plasma position in IR-T1 tokamak: a poloidal flux loop and a magnetic probe method. In the first method, two flux loops were designed and installed toroidally on the outer surface of the IR-T1 tokamak, and then, displacement of the plasma column was measured from them. In addition, to compare the plasma position obtained using the flux loops, an array of four magnetic probes was designed, constructed, and installed on the outer surface of the IR-T1 tokamak, and plasma position was measured from them. Results were compared and found to be in good agreement with each other.      

FEB-E动态气靶偏滤器的研究

在ＦＥＢ－Ｅ设计阶段,偏波器从开放式固定板靶优化为封闭式气体靶,以改善偏滤器的杂质控制和增加离子与气体的相互作用,通过喷气和注入杂质获得的部分脱靶等离子体形成了动态气体靶,喷气能降低删削层（ＳＯＬ）处等离子体温度,沪入的杂质增加了ＳＯＬ处的辐射功率,使靶板的负载降低,用ＮＥＷＴ１Ｄ编码模拟了ＳＯＬ处等离子体和杂质（硼杂质）的输运,得到了杂质、等离本温度和等离了体密度分布。着眼于杂质的滞留物辐射,优     

Investigations of Impurity Atom Deposition in the Limiter Shadow of the T-10 Tokamak by Means of Auger Electron Spectroscopy

The impurity flux in the limiter shadow region of the T-10 tokamak has been studied by exposing a solid probe to the plasma and subsequent investigation of deposits by surface analysis techniques. The main constitutents of the inner construction materials of T-10 could be detected by AES and SIMS. The deposited amount of impurities has been shown to rise with a decrease of the distance between probe and plasma. Long term observations of the metal impurity composition in the limiter shadow region by means of the deposition probe have shown a gradual decrease of the relative Ni concentration, which is explained as a successive deposition of stainless steel limiter material on the Inconel liner. The observed spatial asymmetry of the impurity flux and the deposition profiles for different elements on the probe are discussed.     

HL—1M装置器壁硅化对电子速率分布的影响

在欧姆加热和低混杂波电流驱动条件下,利用磺化汞半导体探测器和碘化钠和探测器测出了ＨＬ－１Ｍ装置的Ｘ射线能谱,研究了器壁硅化前后电子速率分布和电子温度变化的特点,给出了Ｘ射线辐射强度与ＬＨＣＤ能量沉积的关系。