Commissioning results of CERN HIE-ISOLDE and INFN ALPI cryogenic control systems

26th International Cryogenic Engineering Conference & International Cryogenic Materials Conference 2016

材料科学;物理学

Inglese, V.^1 ; Pezzetti, M.^1 ; Calore, A.^2 ; Modanese, P.^2 ; Pengo, R.^2

CERN, Geneva, Switzerland^1

Laboratori Nazionali Legnaro, Padua, Italy^2

关键词: Cryogenic control systems;    Cryogenic system;    Hardware and software;    Isotope-separator-on-line;    National laboratory;    Superconducting linear accelerators;    Superconducting RF cavity;    Superconducting solenoids;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/171/1/012002/pdf
DOI  :  10.1088/1757-899X/171/1/012002

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The cryogenic systems of both accelerators, namely HIE ISOLDE (High Intensity and Energy Isotope Separator On Line DEvice) at CERN and ALPI (Acceleratore Lineare Per Ioni) at LNL, have been refurbished. HIE ISOLDE is a major upgrade of the existing ISOLDE facilities, which required the construction of a superconducting linear accelerator consisting of six cryomodules, each containing five superconductive RF cavities and superconducting solenoids. The ALPI linear accelerator, similar to HIE ISOLDE, is located at Legnaro National Laboratories (LNL) and became operational in the early 90's. It is composed of 74 superconducting RF cavities, assembled inside 22 cryostats. The new control systems are equipped with PLC, developed on the CERN UNICOS framework, which include Schneider and Siemens PLCs and various fieldbuses (Profibus DP and PA, WorldFIP). The control systems were developed in synergy between CERN and LNL in order to build, effectively and with an optimized use of resources, control systems allowing to enhance ease of operation, maintainability, and long-term availability. This paper describes (i) the cryogenic systems, with special focus on the design of the control systems hardware and software, (ii) the strategy adopted in order to achieve a synergic approach, and (iii) the commissioning results after the cool-down to 4.5 K of the cryomodules.