High energy photon

1

Objective : To compare the retrobulbar irradiation dose distribution of high energy photon with electron in patients with Graves ' ophthalmopathy .

目的：比较高能X线和电子线在Graves眼病球后照射时的剂量分布。
2

The constraint ranges of the dark energy and high energy photon in early universe are given by the observation datas of the helium abundance . 4 .

根据氦丰度的观测值给出了早期宇宙中暗能量和高能光子的约束范围。
3

Radiotherapy was given with high energy photon beams combined with high energy electron beams in conventional fractionation , with the total dose of 30-70 Gy ( median 52 Gy ) .

放射治疗采用高能光子射线配合高能电子线，常规分割，照射剂量DT30～70Gy（中位数52Gy）。
4

That indicate KV ripple affect obviously mA value , the more X-ray photon number , the stronger of accepted signal , but the more KV ripple , the more low energy photon , the less high energy photon , the less photon that arrived at the detector .

原则上mA越高，X线量越大，接收信号越强，但是，KV波纹大，低能光子数量增加，到达探测器的高能光子数减少，对X线量影响更大。