Calculations and Neutron and Photon Source Terms andAttenuation Profiles for the Generic Design of SPEAR3 Storage Ring Shield

Conference · Tue Jan 03 04:00:00 EST 2006

OSTI ID:877999

Rokni, S H; Khater, H; Liu, J C; Mao, S; Vincke, H

The FLUKA Monte Carlo particle generation and transport code was used to calculate shielding requirements for the 3 GeV, 500 mA SPEAR3 storage ring at the Stanford Synchrotron Radiation Laboratory. The photon and neutron dose equivalent source term data were simulated for a 3 GeV electron beam interacting with two typical target/shielding geometries in the ring. The targets simulated are a rectangular block of 0.7 cm thick copper and a 5 cm thick iron block, both tilted at 1{sup o} relative to the beam direction. Attenuation profiles for neutrons and photons in concrete and lead as a function of angle at different shield thicknesses were calculated. The first, second and equilibrium attenuation lengths of photons and neutrons in the shield materials are derived from the attenuation profiles. The source term data and the attenuation lengths were then used to evaluate the shielding requirements for the ratchet walls of all front-ends of the SPEAR3 storage ring.

• Research Organization: Stanford Linear Accelerator Center (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 877999
• Report Number(s): SLAC-PUB-11088
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ATTENUATION
Accelerators
Other
SAFETY
CONCRETES
COPPER
DOSE EQUIVALENTS
ELECTRON BEAMS
IRON
NEUTRONS
PHOTONS
RADIATION PROTECTION
SHIELDING
SHIELDS
SOURCE TERMS
STORAGE RINGS
SYNCHROTRON RADIATION
TARGETS