DESIGN OF ULTRA HIGH VACUUM (UHV) SYSTEM TO EVALUATE OUTGASSING RATE OF THE MATERIALS TO ASSES THEIR UHV COMPATIBILITY
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 4, Issue 7
Abstract
Stainless steel and copper are very suitable structural metals for fabrication of UHV vessels. Indus-1 (450MeV) and Indus-2(2.5GeV) are electron storage rings dedicated for their application as a synchrotron radiation sources. In accelerators the residual gas particles limit the e-beam performance and its life time. The main factor deciding the UHV compatibility of any vacuum component is the specific outgassing rate, at room temperature and specifically at the operating temperature. To evaluate the outgassing rate of the various materials to be used in UHV, an experimental set-up made up of stainless steel has been designed, developed and tested. A thin cylindrical shell under external pressure, like a column, may collapse either by yield or by buckling. Collapse by yield is caused by stresses in the shell reaching the yield point of the material. Collapse by buckling is caused by buckling of the shell at stresses which may be considerably below the yield point. The shell strength i.e. the thickness of the considered experimental set – up chambers was designed on the basis of ASME code section VIII/Div-1, II/part-D. Orifice was designed as per AVS standard. The buckling analysis, deflection analysis and stress analysis were also performed on the experimental setup chambers using ANSYS software and results were found up to the mark. This paper elaborates design calculations for chamber and orifice, outgassing- rate measurements and the ANSYS results.
Authors and Affiliations
Ibrahim Hussain
Keywords
Related Articles
- EP ID EP148273
- DOI -
- Views 43
- Downloads 0
VIRTUAL KEYBOARD: AN INTELLIGENT INTERACTION SYSTEM FOR DESKTOP USING STANDARD CAMERA
A virtual keyboard is a type of keyboard which doesn’t require any external physical support and can be operated by simply moving fingers, rather than typing on the physical keys of keyboard. Camera tracks the fin...
DETECTION OF COMPUTER VIRUSES USING WELM_PSO
Computer viruses are big threat for our society .The expansion of various new viruses of varying forms make the prevention quite tuff .Here we proposed WELM_PSO to detect computer viruses. The proposed method effi...
MANUFACTURING OF ENVIRONMENTAL FRIENDLY PAPER FROM DOMESTIC RESIDUALS OF FRUITS AND VEGETABLES
Paper has been a very important part of a human life. It is the most versatile material with diverse uses like writing, printing, packaging, and cleaning. Traditionally, paper was produced by beating cellulose fibr...
IMPROVED STRUCTURE OF AUTOMATIC SOLAR TRACKING SYSTEM
Energy crisis is the most important issue in today's world as demand for electrical energy increasing over the years. Conventional energy sources are not only limited but also hazardous to environment. Therefore, usage...
INFORMATION AND COMMUNICATION TECHNOLOGY RESOURCES IN TEACHING INDUSTRIAL SUBJECTS AT NAVAL STATE UNIVERSITY
This study aimed to assess the Information and Communication Technology resources in teaching industrial subjects at Naval State University, Naval, Biliran. The descriptive research design was used in this study t...