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arXiv · 0911.1715

Doppler-tuned Bragg Spectroscopy of Excited Levels in He-Like Uranium: a discussion of the uncertainty contributions

Martino Trassinelli·Ajay Kumar·H. F. Beyer·Paul Indelicato·Renate Märtin·Regina Reuschl·Thomas Stöhlker
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Abstract

We present the uncertainty discussion of a recent experiment performed at the GSI storage ring ESR for the accurate energy measurement of the He-like uranium 1s2p3P2- 1s2s3S1 intra-shell transition. For this propose we used a Johann-type Bragg spectrometer that enables to obtain a relative energy measurement between the He-like uranium transition, about 4.51 keV, and a calibration x-ray source. As reference, we used the Ka fluorescence lines of zinc and the Li-like uranium 1s22p2P3/2 - 1 s22s 2S1/2 intra-shell transition from fast ions stored in the ESR. A comparison of the two different references, i.e., stationary and moving x-ray source, and a discussion of the experimental uncertainties is presented.

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Martino Trassinelli, Ajay Kumar, H. F. Beyer, Paul Indelicato, Renate Märtin, Regina Reuschl, Thomas Stöhlker. 2009-11-09. Doppler-tuned Bragg Spectroscopy of Excited Levels in He-Like Uranium: a discussion of the uncertainty contributions. https://doi.org/10.1088/1742-6596%2F163%2F1%2F012026

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