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DIGE differential cross section data for oxygen isotopic analysis
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms ( IF 1.3 ) Pub Date : 2020-09-17 , DOI: 10.1016/j.nimb.2020.09.005
A. Jokar , H. Rafi-kheiri

In this work the absolute differential cross sections of the 18O(d,pγ)19O (Eγ = 1376 keV) ,18O(d,nγ)19F (Eγ = 1357 keV) and 16O(d,pγ)17O (Eγ = 871 keV) reactions were measured for the isotopic analysis of oxygen by DIGE technique. The energy of the incident deuterons was varied from 590 to 1994 keV in steps of 10 keV. Gamma-rays and backscattered deuterons were collected simultaneously by an HPGe detector at an angle of 90° and an ion implanted Si detector at a scattering angle of 165° with respect to the beam direction. An anodic Ta216,18O5 thin layer on tantalum was used throughout the cross sections measurement. The validity of obtained cross sections was checked by benchmarking experiment with a thick Y2O3 target. The overall systematic uncertainty of the measured cross section data was estimated to be better than 9%.



中文翻译:

DIGE微分截面数据用于氧同位素分析

在这项工作中的绝对微分截面18 O(d,Pγ)19 ö(E γ  = 1376千电子伏),18 O(d,NT个)19 F(Ë γ  = 1357千电子伏)和16 O(d,Pγ ) 用DIGE技术测量了17 O( = 871 keV)反应用于氧同位素分析。入射氘核的能量从590keV到1994keV不等,步长为10keV。相对于电子束方向,HPGe检测器以90 °的角度同时收集了γ射线和反向散射的氘核,离子注入的Si检测器以165°的散射角同时收集了它们。阳极Ta 2 16,18 O在整个横截面测量中,使用了5个钽薄层。通过使用厚的Y 2 O 3靶进行基准测试来检验所获得横截面的有效性。测得的横截面数据的整体系统不确定性估计优于9%。

更新日期:2020-09-18
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