1) ray density meter
伽玛射线密度计
1.
In order to measure the sand concentration distribution by using a ray density meter, a measuring-path adjusting device is designed.
泥砂浓度沿管道截面的分布与管道固液两相流动特性有着密切的关系；为了采用伽玛射线密度计测量泥砂浓度沿管道截面的分布，设计了一种测量通道调节机构，使放射源与探测器能够扫过整个管道截面；提出了一种简便易行的密度计标定方法；实验室实测表明，密度标定及测量方法可行，测量精度可以达到。
2) gamma-ray
伽玛射线
1.
In the frame of the revised outer gap model,study the non-thermal X-ray radiation of seven old pulsars observed by Chandra, the predicted values are consistent with the observed date, and calculate the non-thermal X-ray luminosity of old pulsars with outer gaps, and compute the gamma-ray luminosity and gamma-ray fluxes of these old pulsars with outer gaps.
利用新的外间隙模型,研究计算了老年脉冲星的非热X-射线光度,并与Chandra观测到的七颗老年脉冲星的非热X-射线光度的观测结果进行了比较,模型的计算结果和观测数据吻合较好,同时计算了老年脉冲星可能的伽玛射线光度和流量。
2.
The original spectrum from the soil is simulated by MCNP and the experiment of influence to natural gamma-ray is done.
采用MCNP模拟软件和水分对天然伽玛射线的影响实验,对不同水分土壤中铀系和钍系天然伽玛的原始谱进行了模拟运算。
3) gamma rays
伽玛射线
1.
New Progress in Gamma Knife--SGS-1 Stereo-orientation Gamma Rays Whole Body Treating System;
伽玛刀的新发展——SGS-I型立体定向伽玛射线全身治疗系统
5) gamma ray
伽玛射线
6) gamma-ray bursts
伽玛射线暴
1.
The relationship between the pulse FWHM (full-widths at half maximum) and the energy of gamma-ray bursts (GRBs) is explored based on the observed data from BATSE data base (http:cossc:gsfc:nasa:gov/atse/).
探索来源于BATSE(http://cossc:gsfc:nasa:gov/batse)的GRB(Gamma-Ray Burst,伽玛射线暴)观测数据的半峰宽度(FWHM)与能量之间的关系,基于64个用KRL函数模型(即,文[1]中的(22)式)能很好地拟合的FRDE(Fast Rise and Exponential Decay,快速上升指数下降)型脉冲样本。
2.
Gamma-ray bursts (GRBs) are flashes of gamma-ray occurring at cosmological distances, being the most powerful explosions since the Big Bang.
伽玛射线暴是宇宙中的伽玛射线突然增亮的现象,是继大爆炸后最剧烈的爆发。
补充资料：FB-2300F型γ射线微机工业密度计
FB-2300F型γ射线微机工业密度计
FB一2300F型7射线微机工业密度计
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条