mev

A preliminary experiment is conducted with ( direct)-film method under the condition that fast neutron with energies lower than 7 MeV is generated by the reaction of~ 9Be ( d, n) on the Peking University 4.5 MV Van de Graaff.

利用9Be（d，n）反应在北京大学4.5MV静电加速器上产生低于7MeV能区的快中子，采用胶片成像法进行了快中子照相的初步实验。

Isomeric cross section ratio for the~ ( 197) Au ( n, 2n) reaction at 15 MeV is measured by the activation method.

用活化法测量了15MeV中子引起~（197）Au（n，2n）反应的同质异能素截面比。

Design and implementation of control system for 4 MeV LIA

4MeV直线感应加速器控制系统设计与实现

Counting rates of the BF3 long neutron counter and the liquid scintillation detector were simultaneously increased by a factor of 15 compared to the background. A recoil proton energy spectrum of 2.45 MeV neutrons was also measured by the liquid scintillation detector with n-γ discrimination.

长中子计数器和液体闪烁计数器的计数均比本底高15倍，液体闪烁计数器同时记录了2.45MeV中子的反冲质子能谱。

Calculation and Analysis of~ ( 58) Ni ( p, x) Reaction in Energy Region E_p ≤ 200 MeV

E p≤200MeV能区p+~（58）Ni反应的计算与分析

A conception design of 200 MeV electron test beam

200MeV电子试验束的概念设计

The relative neutron sensitivity of the dosimeter for 14 Mev neutron ra ( ? ) from 0.024 to 0.027.

它对14兆电子伏中子的相对中子灵敏度 Ku 在0.024—0.027范围内.

The physical design and beam test for the BPL 35.5 MeV beam transport system are desc-ribed.

本文阐述了北京质子直线加速器35.5MeV应用束流输运系统的物理设计和调试结果.

For this reason, it is necessary to establish and develop a new nuclear reaction model for light nucleus and to measure double-differential cross sections precisely for some key nuclei within 8~ 13 MeV region.

因此，建立和发展用于描述轻核核反应过程的新的理论模型是非常有意义的。

Extrapolation chamber measurements of absorbed dose rate distributions for 1.5 MeV electron beam in silicon

用外推电离室测量1.5MeV电子束在硅中的剂量率分布

Calculation results of fast neutron ( E > 1 MeV ) irradiation damage had been given according to the NRC-RG 1.99 ( Rev 2 )

按照NRC-RG1.99 ( Rev2 ) 规定给出了快中子 ( E>1Mev ) 辐照损伤计算结果.

The preliminary research of the neutron material analysis method using photoneutron produced by 9 MeV electron accelerator

利用9MeV电子加速器产生的光中子进行中子元素分析的方法初探

Resistivity and damage annealing of high energy ( MeV) oxygen ion implanted semi-insulating GaAs

高能（MeV级）氧离子注入本征型GaAs的电性能及注入损伤退火行为的研究

Low solar wind density and the strong substorm are the two key parameters leading to the 2 MeV electron flux at geostationary orbit reach very high level during the geomagnetic storm recovery phase.

在磁暴恢复相期间，低的太阳风密度和强的亚暴是导致地球同步轨道能量大于2MeV电子通量的达到极高值的两个关键参数。

The enhanced adhesion of In, Sn, Al, Pd, Cu and Ni films on Teflon substrates under 6 MeV F ion irradiation was studied.

用6MeV的氟离子对淀积在聚四氟乙烯基底上的In、Sn、Al、Cu、Pd和Ni等金属薄膜进行了一定剂量范围的辐照，测定了发生增强附着效应的阈剂量值。

The study on solid metal neutron production target properties for incident 150 MeV proton is performed.

对150MeV质子入射钨、铅和铅铋合金固态金属靶的性质进行了研究。

Independent Yield Measurement for the Hg-Isotope Products From 600 MeV~ ( 18) O+~ ( nat) Pb ( thick target) System(ⅰ) Experiment and Technique

600MeV~（18）O+~（nat）Pb（厚靶）系统生成Hg同位素独立产额测量（Ⅰ）实验和技术

Comparing it with the result of non-relativistic approximation, the maximum correction of position of energy level Δ E_1 is several tens MeV, the maximum correction of annihilated width Δ E_2, is about more than ten MeV.

与非相对论近似的结果比较，能级位置的修正△E1最大可达几十个MeV，湮灭宽度的修正△E2最大可达十几个MeV。

Study on the shielding material of 14 MeV neutrons collimation based on MCNP

基于MCNP程序模拟的14MeV中子准直屏蔽材料的研究

Sb, Ag, Cu, Pd and Ni films deposited on Si substrates were irradiated with 6 MeV F ions. The Scotch tape test was employed to measure adhesion changes as a function of dose.

用6MeV F离子束辐照了淀积在Si单晶基底上的Sb、Ag、Cu、Pd和Ni金属薄膜，并用胶带法对不同辐照剂量的各点进行了增强附着阈剂量的测量。

The way of Compton recoil electron is used to measure the gamma-ray leakage spectra from iron spherical target assembly pulsed with 14-MeV D-T neutrons.

用康普顿反冲电子方法测量了14MeV的D T中子穿透系列铁球的伴生γ射线泄漏能谱，能谱的能量范围为0.55MeV。

3.5 MeV pulsed power system for LIA injector

3.5MeV注入器脉冲功率系统

As the beams are stably trans-ported , an energy 10.4 MeV, current 2.6 kA, 100 ns ( FWHM ) intense electron beam can be obtained.

当束稳定输运时, 可获得束能 10.4MeV,束流强度2.6kA, 束半高宽约100ns的强流脉冲电子束.

Because the energy region in nucleus is hundreds of MeV, the research is restricted and the results are not ideal for the wide energy region ( including low, middle and high energy).

因为核物理所研究的能区一般在几百个兆电子伏特，所以当能区很宽时（包括中、低能区和高能区），核物理所作的研究就要受到限制，结果也不尽如人意。

Correction factors of the BPS Te-Te spherical cavity ionzation chamber in 15 MeV neutron field

BPS型TE-TE球形空腔电离室在15MeV中子场测量的修正因子

Destruction Study of Tantalum Target Impacted by 12 MeV Electron Beam

12MeV强流脉冲电子束对钽靶的破坏研究

Applications of 10 MeV water calorimeter for measuring electron beam doses

10MeV水量热计在电子束剂量测量中的应用

Temperature gradient technique ( TGT) grown Ti-doped sapphire crystals were irradiated by 1.5 MeV neutrons with a dose of 4.32 × 10~ ( 16) neutrons/ cm~ 2. Absorption, emission and excitation spectra were presented.

对温度梯度法（TGT）生长的钛宝石晶体进行中子辐照，中子能量为1.5MeV，剂量为4.32×1016neutrons/cm2。

This paper describes the construction, principles and features of the dosimeter which is used to monitor the dosage in 4 MeV linear electron accelerator for detection of defects.

本文介绍应用在4MeV电子直线探伤加速器现场监测剂量强度的剂量仪的结构、原理和特点。

Isolated double conducting layers formed by MeV si, o implantation in SI-GaAs

MeV硅、氧离子注入SI-GaAs形成相互隔离的双导电层