ALICE Diffractive Detector Control System for RUN-II in the ALICE Experiment

30th Annual Meeting of the Division of Particles and Fields (DPyC) of the Mexican Physical Society

Cabanillas, J.C.^1 ; Martinez, M.I.^2 ; León, I.^1

Universidad Autónoma de Sinaloa (UAS), Josefa Ortiz de Dominguez S/N Culiacan Rosales, Sinaloa, México

CP: 80013, Mexico^1

Benemérita Universidad Autónoma de Puebla (BUAP), Cd. Universitaria, 72570 Heróica Puebla de Zaragoza, Puebla, Mexico^2

关键词: Central systems;    Detector control systems;    Nominal voltage;    Optimum operating conditions;    Photomultiplier tube;    Pseudorapidities;    Safety alerts;    Threshold levels;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/761/1/012025/pdf
DOI  :  10.1088/1742-6596/761/1/012025

来源: IOP

【 摘 要 】

The ALICE Diffractive (AD0) detector has been installed and commissioned for the second phase of operation (RUN-II). With this new detector it is possible to achieve better measurements by expanding the range of pseudo-rapidity in which the production of particles can be detected. Specifically the selection of diffractive events in the ALICE experiment which was limited by the range over which rapidity gaps occur. Any new detector should be able to take data synchronously with all other detectors and to be operated through the ALICE central systems. One of the key elements developed for the AD0 detector is the Detector Control System (DCS). The DCS is designed to operate safely and correctly this detector. Furthermore, the DCS must also provide optimum operating conditions for the acquisition and storage of physics data and ensure these are of the highest quality. The operation of AD0 implies the configuration of about 200 parameters, as electronics settings and power supply levels and the generation of safety alerts. It also includes the automation of procedures to get the AD0 detector ready for taking data in the appropriate conditions for the different run types in ALICE. The performance of AD0 detector depends on a certain number of parameters such as the nominal voltages for each photomultiplier tube (PMT), the threshold levels to accept or reject the incoming pulses, the definition of triggers, etc. All these parameters affect the efficiency of AD0 and they have to be monitored and controlled by the AD0 DCS.