Monte Carlo and analytical calculations for characterization of gas bremsstrahlung in ILSF insertion devices

Gas bremsstrahlung is generated in high energy electron storage rings through interaction of the electron beam with the residual gas molecules in vacuum chamber. In this paper, Monte Carlo calculation has been performed to evaluate radiation hazard due to gas bremsstrahlung in the Iranian Light Source Facility (ILSF) insertion devices. Shutter/stopper dimensions is determined and dose rate from the photoneutrons via the giant resonance photonuclear reaction which takes place inside the shutter/stopper is also obtained. Some other characteristics of gas bremsstrahlung such as photon fluence, energy spectrum, angular distribution and equivalent dose in tissue equivalent phantom have also been investigated by FLUKA Monte Carlo code.

[1]  E. Ahmadi,et al.  Low field low emittance lattice for the storage ring of Iranian Light Source Facility , 2013 .

[2]  A. Sadeghipanah,et al.  ILSF, A THIRD GENERATION LIGHT SOURCE LABORATORY IN IRAN , 2013 .

[3]  J. Rahighi,et al.  3rd GENERATION LIGHT SOURCE PROJECT IN IRAN , 2011 .

[4]  I. Coulthard,et al.  Radiation shielding considerations against gas bremsstrahlung for the BioXAS beamlines at the Canadian Light Source , 2010 .

[5]  R. Feng,et al.  Dose rate estimates due to gas bremsstrahlung for a photon shutter and collimator unit of the VESPERS beamline at the Canadian Light Source , 2007 .

[6]  F. Cerutti,et al.  The FLUKA code: Description and benchmarking , 2007 .

[7]  H. Hirayama,et al.  Shielding design study against gas bremsstrahlung for the CLS first optics enclosures , 2006 .

[8]  J. Asai.  Radiation shielding considerations against gas bremsstrahlung for the transverse wall at the Canadian Light Source , 2006 .

[9]  A. Ferrari,et al.  FLUKA: A Multi-Particle Transport Code , 2005 .

[10]  M. Silari,et al.  Effective dose and organ doses due to gas bremsstrahlung from electron storage rings , 2001 .

[11]  P. Berkvens,et al.  Absorbed dose distributions in a tissue-equivalent absorber for bremsstrahlung produced at the beamlines of the European Synchrotron Radiation Facility , 2000 .

[12]  H. Shimizu,et al.  Measurement of gas bremsstrahlung at the SPring-8 insertion device beamline using PWO scintillator , 2000 .

[13]  A. Fasso,et al.  Gas bremsstrahlung considerations in the shielding design of the Advanced Photon Source synchrotron radiation beam lines , 1994 .

[14]  G. Tromba,et al.  Fluctuations of the gas bremsstrahlung dose rate at an electron storage ring , 1994 .

[15]  M. Pelliccioni,et al.  Estimation of fluence rate and absorbed dose rate due to gas bremsstrahlung from electron storage rings , 1993 .

[16]  G. Tromba,et al.  Gas bremsstrahlung from electron storage rings: A Monte Carlo evaluation and some useful formulae , 1990 .

[17]  A. Rindi.  Gas bremsstrahlung from electron storage rings. , 1982, Health physics.

[18]  A. Burtsev,et al.  HIGH ENERGY PARTICLES , 1957 .