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Paper   IPM / ILSF / 16821
  Title:   vacumm system design for the storage ring of Iranian light Source facillity
1.  H. Karimi
2.  S.Z. Kalantari
3.  J. Rahighi
  Status:   Published
  Journal: Nucl. Instr. and Meth. in Phys. Res. A
  Year:  2019
  Supported by:  IPM
The current study describes the vacuum system of ILSF storage ring. The design uses the stainless steel vacuum chambers with a continuing keyhole profile all around the storage ring. The NEG cartridge and Ion pumps which are installed in the antechamber will pump all the vacuum sectors. Using Monte-Carlo simulation proved that the machine could reach an average pressure of 1 nTorr after the commissioning phase, which could guarantee a vacuum life time of about 13 h. The general layout of the vacuum system and the construction steps for the vacuum chambers will also be elaborated on. Several discrete photon absorbers which are designed in three types will absorb all the synchrotron radiations. For the heat load study, a simulation with Synrad is performed to calculate the power distribution on the absorber surfaces. Then the result is used to calculate the stress and strain on the absorbers by Finite Element Analysis (FEA).

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