Novikov’s inversion formula for the attenuated Radon transform—A new approach

Novikov’s inversion formula for the attenuated Radon transform—A new approach
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诺维科夫衰减氡变换反演公式——一种新方法

DOI:
10.1007/bf02922067
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发表时间:
2004
期刊:
The Journal of Geometric Analysis
影响因子:
--
通讯作者:
J. Strömberg
J. Strömberg
中科院分区:
--
文献类型:
--
作者:
Jan Boman;J. Strömberg

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研究了二维权Radon变换的逆问题,Rρƒ(L)=ƒL=ƒ(·),其中权函数ρ(L,x),L a直线,x∈L具有特殊形式.R·G·诺维科夫最近给出了当ρ具有形式(1.2)时R-ρ的逆的显式公式,这是一个重要的突破;在这种情况下,R-ρ称为衰减Radon变换。在这里,我们使用完全不同的、相当初级的方法,对更大的ρ类证明了类似的结果。
We study the inversion of weighted Radon transforms in two dimensions, Rρƒ(L)=ƒL =ƒ(·), where the weight function ρ(L, x), L a line and x ∈ L, has a special form. It was an important breakthrough when R.G. Novikov recently gave an explicit formula for the inverse of Rρ when ρ has the form(1.2); in this case Rρ is called the attenuated Radon transform. Here we prove similar results for a somewhat larger class of ρ using completely different and quite elementary methods.