(d) A bicycle operated during darkness upon a highway, a sidewalk where bicycle operation is not prohibited by the local jurisdiction, or a bikeway, as defined in Section 890.4 of the Streets and Highways Code, shall be equipped with all of the following: The ground, and restarting it in a safe manner. (c) No person shall operate upon a highway a bicycle that is of a size that prevents the operator from safely stopping the bicycle, supporting it in an upright position with at least one foot on (b) No person shall operate on the highway a bicycle equipped with handlebars so raised that the operator must elevate his or her hands above the level of his or her shoulders in order to grasp the normal steering grip area. International Journal of Nuclear Energy Science and Technology, 2019 Vol.13 No.4, pp.(a) No person shall operate a bicycle on a roadway unless it is equipped with a brake that will enable the operator to make one braked wheel skid on dry, level, clean pavement. Keywords: TRR reflector conversion thermal neutron flux enhancement Monte Carlo-based calculations compact core. Moreover, this study demonstrates that compacting the core could significantly enhance the thermal neutron flux up to 58% that is noticeably more than the reflector conversion effect. In addition, instead of total reflector conversion, application of some dimensionally optimised BeO blocks located around the irradiation boxes increases the thermal neutron flux up to 2.62%.
The calculations showed that the reflector replacement could result in a little enhancement of thermal neutron flux while beryllium oxide is suggested as the most efficient material (about 2.78% on average per channel).
#REFLECTOR 2 CODE CODE#
The core is modelled using Monte Carlo-based code with the graphite routine reflector and with Be, BeO, and D 2O reflectors. Here, the effect of graphite reflector replacement with other customary reflectors on thermal neutron flux enhancement of Tehran Research Reactor (TRR) core has been investigated. Title: Computational investigation of Tehran research reactor graphite reflector replacement with Be, BeO or D 2O and its impacts on thermal neutron flux enhancementĪuthors: Zohreh Gholamzadeh Farrokh Khoshahval Masoud Amin Mozafari Atieh Joze-VaziriĪddresses: Reactor and Nuclear Safety Research School, Nuclear Science and Technology Research Institute (NSTRI), Tehran, Iran ' Reactor and Nuclear Safety Research School, Nuclear Science and Technology Research Institute (NSTRI), Tehran, Iran ' Reactor and Nuclear Safety Research School, Nuclear Science and Technology Research Institute (NSTRI), Tehran, Iran ' Reactor and Nuclear Safety Research School, Nuclear Science and Technology Research Institute (NSTRI), Tehran, IranĪbstract: Thermal neutron flux enhancement is an essential objective to achieve more radioisotope production in the research reactors. International Journal of Nuclear Energy Science and Technology.Inderscience Publishers - linking academia, business and industry through research The core is modelled using Monte Carlo-based code with the graphite routine reflector and with Be, BeO, and D2O reflectors. Article: Computational investigation of Tehran research reactor graphite reflector replacement with Be, BeO or D2O and its impacts on thermal neutron flux enhancement Journal: International Journal of Nuclear Energy Science and Technology (IJNEST) 2019 Vol.13 No.4 pp.350 - 371 Abstract: Thermal neutron flux enhancement is an essential objective to achieve more radioisotope production in the research reactors.
0 kommentar(er)
