gamma iron 中文意思是什麼
gamma iron
解釋
γ鐵-
The leakage gamma ray of iron spheres is measured by high pure germanium ( hpge ) detector. comparing with the bc - 501a scintillator detector, four characteristic gamma rays : 846. 77, 1238. 282, 1771. 351 and 2212. 933kev caused by inelastically scattered neutrons are coincident with the bc - 501 a scintillator detector. it shows that the measurements by bc - 501 a scintillator detector are accurate and credible
利用高純鍺探測器測量泄漏能譜，並與bc - 501a測量的結果進行了對比，幾個典型的中子非彈性散射所產生的特徵射線峰846 . 77kev ， 1238 . 282kev ， 1771 . 351kev和2212 . 933kev ，對應的較一致，由此確定bc - 501a探測器測量結果是準確、可靠的。 -
Heavy metals, such as iron and lead, make good gamma-ray shields because of their high density.
重金屬像鐵、鉛等由於密度很大，都是防護射線的最好的防護材料。 -
At first, measuring the electron recoil spectra of target room gamma ray. through the resolution of spectra we get the gamma ray spectra caused by target room. then we transform it to the zero point, the place of neutron source, and calculate the leakage gamma ray spectra t from iron sphere caused by target room gamma ray by mcnp program
靶室產生的射線本底，通過實驗測量和模擬計算相結合的方法加以扣除，首先測量靶室產生的射線康普頓反沖電子譜，解譜得到靶室泄漏譜，將所解得的靶室泄漏譜歸一到原點，即中子源處，利用mcnp蒙卡程序輸運計算靶室射線穿透鐵球后所泄漏的能譜，最後從d ? t中子穿透鐵球伴生射線泄漏能譜s中扣除。 -
The results show that the mass absorption coefficient is nearly exponent decay with the gamma energy, the less energy of gamma ray, the more probability of absorption in the iron sphere
結果表明，隨著射線能量的增加，質量吸收系數近似呈指d一t中子穿透鐵球伴生y射線泄漏能譜實驗研究數衰減， y射線能量越低，被鐵原子核吸收的幾率越大。 -
Finally we deduct it from the d - t leakage gamma ray spectra s of iron spheres. from the analysis of gamma - ray spectrum, we find that spectra flux shows certain regularity when thickness of iron shell is increasing. the gamma flux is increasing with the thickness " increasing when thickness is less than 6cm, and it is decreasing when the thickness is more than 6cm
通過分析測量得到的不同厚度的泄漏能譜，發現鐵球厚度對能譜通量變化的影響有一定的規律，當鐵球厚度接近小於6cm時，泄漏通量隨厚度增加呈上升趨勢，當厚度接近大於6cm時，通量隨厚度增加呈下降趨勢。 -
Shielded enclosure bushing. protection against gamma rayos. requirements for cast iron screws used for ventilation
屏蔽殼體襯套.射線防護.通風用鑄鐵螺釘的要求 -
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. the energy range of measured gamma - ray spectrum is 0. 5 - 5mev
用康普頓反沖電子方法測量了14mev的d ? t中子穿透系列鐵球的伴生射線泄漏能譜，能譜的能量范圍為0 . 5 ? 5mev 。 -
This paper has discussed the airborne monitoring of radioactive contamination formed during exploitation and utilization of iron ore and coal ore, analyzed the gamma radiant eminence map of china, and determined several relatively high radioactivity level regions, thus showing the effects of airborne radioactivity survey
摘要通過對鐵、煤開發利用中形成的放射性熱點的成功航空檢測，以及對中國輻射照射量率圖的分析，確定了幾個放射性水平偏高區域，從而闡明了航空放射性測量在環境檢測中的作用。
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