Paper Title
Structural And Thermal Analysis Of Vacuum Chambersusing Finite Element Method For Insurtion Device In Indus-2 Storage Ring

Indus-2 is a 2.5GeV, 200mA, Synchrotron Radiation Source (SRS) located at Raja Ramanna Centre for Advanced Technology (RRCAT), Indore, MP, India. As part of insertion device (ID) development programme, an APPLE-2 (Advanced Planar Polarized Light Emitter) type Undulator (also known as U-3 Undulator) is being developed for generating variably polarized synchrotron radiation (SR) required for carrying out magnetic circular dichroism (MCD) and magnetic linear dichroism (MLD) experiments. As part of Indus-2 storage ring, operating (dynamic) pressure of ~ 2 X 10-9 mbar is required to be maintained in the undulator vacuum system for ensuring longer stored beam lifetime of > 16 hr. Highly intensive Undulator SR beam when enter in dipole chambermay hit the downstream dipole vacuum chamber surface in case of mis steering of e- beam and will raise the temperature to unacceptable level. This paper covers structural and thermal aspects of undulator and dipole vacuum chambers. Keywords— Undulator, Aluminium alloy, Synchrotron Radiation, Deformation, Temperature.