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Experimental set-up for high precision nuclear physics measurements at the IFIN-HH 9MV tandem accelerator
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms ( IF 1.3 ) Pub Date : 2021-05-15 , DOI: 10.1016/j.nimb.2021.05.002
A.N. State , H. Petrascu , D.G. Ghita

The experimental set-up working on the zero-degree beam-line of the 9MV Tandem Accelerator at IFIN-HH now offers a high accuracy and repeatability of the heavy ions nuclear physics experiments. This is achieved by an automated moving system, placed inside a circular reaction chamber, consisting of four moving arms covering a complete 360°. Each arm can hold one detector and is powered by a stepper motor having the possibility of micro-stepping up to 1/256 if the application requires, with a reduction gear box of 60:1 and a resolver acting as a witness for eventual position corrections. Moreover, the target support, positioned in the center of the chamber, is also assisted by a stepper motor and can rotate over 360° clockwise or counterclockwise. Two identical ΔE – E telescopes have received an upgrade in both the gas automated pressure and constant flow regulation by using a software implemented PID (Proportional-Integral-Derivative) controller.



中文翻译:

在IFIN-HH 9MV串联加速器上进行高精度核物理测量的实验装置

现在,在IFIN-HH的9MV串联加速器零度光束线上进行的实验设置为重离子核物理实验提供了高精度和可重复性。这是通过将自动移动系统放置在圆形反应室内实现的,该系统由四个覆盖整个360°的移动臂组成。每个臂可容纳一个检测器,并由步进电机提供动力,如果应用需要,步进电机可以微步进至1/256,减速齿轮箱为60:1,旋转变压器用作最终位置校正的见证人。此外,位于腔室中央的目标支架也由步进电机辅助,可以顺时针或逆时针旋转360°。两个相同Δ通过使用软件实现的PID(比例积分微分)控制器,E – E望远镜在气体自动压力和恒定流量调节方面都得到了升级。

更新日期:2021-05-15
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