Determination of luminosity for in-ring reactions: A new approach for the low-energy domain

Determination of luminosity for in-ring reactions: A new approach for the low-energy domain
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环内反应光度的测定：低能域的新方法

DOI：
10.1016/j.nima.2020.164367
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发表时间：
2020-08
期刊：
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子：
--
通讯作者：
Jura
Jura
中科院分区：
其他
文献类型：
--
作者：
Xing Y.M.;Glorius J.;Varga L.;Bott L.;Br;au C.;Brückner B.;Chen R.J.;Chen X.;Dababneh S.;Davinson T.;Erbacher P.;Fiebiger S.;Gaßner T.;Göbel K.;Groothuis M.;Gumberidze A.;Gyürky G.;Heil M.;Hess R.;Hensch R.;Hillmann P.;Hillenbr;P.-M.;Hinrichs O.;Jura

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亮度是对光束与靶碰撞频率的度量，是测量反应截面等绝对值的重要参数。在本文中，我们利用ESR储存环的实验数据来证明，可以通过模拟测量卢瑟福散射分布来精确地确定光度。所得结果与基于X射线归一化方法的独立测量结果吻合良好。我们的新方法提供了一种替代的方法来精确测量低能量存储光束配置的光度。这可能具有很大的价值，特别是在专用的低能量储存环中，在这些环中，现有的方法难以或不可能应用。
Luminosity is a measure of the colliding frequency between beam and target and it is a crucial parameter for the measurement of absolute values, such as reaction cross sections. In this paper, we make use of experimental data from the ESR storage ring to demonstrate that the luminosity can be precisely determined by modelling the measured Rutherford scattering distribution. The obtained results are in good agreement with an independent measurement based on the x-ray normalization method. Our new method provides an alternative way to precisely measure the luminosity in low-energy stored-beam configurations. This can be of great value in particular in dedicated low-energy storage rings where established methods are difficult or impossible to apply.
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