1) transmission attenuation correction
穿透衰减校正
1.
Study on improving image quality with transmission attenuation correction;
穿透衰减校正改善成像质量的研究
2) attenuation correction
衰减校正
1.
In this paper we present a modified algorithm of CT-Based attenuation correction for PET/CT Scanners in the presence of contrast agent,which can lead to unbiased result for the estimation of emission activity in these cases.
PET/CT扫描一般直接将CT透射扫描数据用于PET发射扫描的衰减校正,但是在有口服造影剂使用的场合,常规的衰减校正算法对PET扫描结果会带来约20%的正偏差。
2.
The CT option can make attenuation correction to SPECT image or coincidence PET image, which makes the image of nuclear medicine closer to the real situation of distribution of radioactive nuclide in patients.
该CT能完成对SPECT图像或符合线路PET图像的衰减校正,使核医学图像能更接近的反映核素在人体内的真实分布情况。
3.
Some new advances of research and clinical study on PET/CT were summarized briefly,including the choice of crystals,development of CT,radiotherapy plan,attenuation correction with CT,respiratory motion and CT contrast induced artifacts.
本文简要介绍PET/CT有关的几个技术问题和临床应用方面的新进展,如晶体的选择、CT技术进展、放射治疗、衰减校正、呼吸运动及CT造影剂的影响等。
3) Damping factor alignment
衰减系数校正
4) fluorescence bleaching compensation
荧光衰减校正
6) Attenuation correction
衰减订正
1.
Application of mountain return PIA to the attenuation correction of 3-cm weather radar data;
山回波的PIA因子在3cm雷达波衰减订正中的应用
2.
With the KZS algorithm the wavelet attenuation correction of the X-band weather radar is realized by using the ground-clutter echo as the criterion.
用KZS算法(地物回波)做标准来实现X波段气象雷达回波的微波衰减订正。
3.
It is corrected that attenuation correction techniques in heavy and big-scale moderate rainfall events,and the comparison analysis between gauge rainfall and estimation of radar rainfall before and after attenuation.
利用昆明多普勒天气雷达资料,采用迭代订正方法对强降水和大范围中等强度降水引起雷达信号的衰减情形进行了订正研究,同时对比分析了衰减订正前后的雷达测量降水与自动雨量站逐小时累计的雨量资料。
补充资料：BCS穿透深度（BCSpenetrationdepth）
BCS穿透深度（BCSpenetrationdepth）
对纯超导体，由BCS电流方程，在伦敦极限下（`\xi_0\lt\lt\lambda`或$l\lt\lt\xi_0$）的穿透深度与伦敦穿透深度λL(T)相符。对非纯超导体（含杂质），在伦敦极限下为
$\lambda(T)=\lambda_L(T)(1 \xi_0//l)^{1/2}$
一般地，λL(T)由经验公式表示其与温度T的关系（见“伦敦穿透深度”）。在皮帕德极限下（$\xi_0\gt\gt\lambda$或$\xi_0\lt\ltl$），ξp=ξ0，则给出为
$\lambda(T)=\frac{8}{9}\lambda_L(T)[\frac{sqrt3\xi_0}{2\pi\lambda_L(T)}]^{1/3}$
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