Modeled Neutron and Charged-Particle Induced Nuclear Reaction Cross Sections for Radiochemistry in the Region of Yttrium, Zirconium, Niobium, and Molybdenum

Abstract

We have developed a set of modeled nuclear reaction cross sections for use in radiochemical diagnostics. Systematics for the input parameters required by the Hauser-Feshbach statistical model were developed and used to calculate neutron, proton, and deuteron induced nuclear reaction cross sections for targets ranging from strontium (Z = 38) to rhodium (Z = 45).

NDI Multigroup Radiochemistry Dosimetry Library hoffman2009

“…We have processed the modeled neutron induced nuclear reaction cross section data from Hoffman et al [1] into NDI 618 lanl multigroup neutron dosimetry tables for yttrium, zirconium, and rhodium, and created corresponding radiochemistry chain files. The resulting cross sections for 87g Y(n,γ) 88g Y and 88g Y(n,2n) 87g Y compare favorably to the data in the rc2004 618 library and are similar to the data in the crsllnl library.…”

“…In June 2006 Hoffman et al [1] documented a set of nuclear reaction cross sections for strontium through rhodium, created by a Hauser-Feshbach model [3] using input parameters created from the local systematic analysis of experimental data. These data are part of their efforts to update and improve Livermore radiochemistry cross section detector sets.…”

“…Recently (Summer 2012) the nuclear data team obtained a CD 1 of modeled radiochemistry data from Livermore [1]. This memo documents our evaluation of that data, our processing it into NDI multigroup neutron dosimetry data, our comparison to NDI existing production neutron dosimetry data, and our creation of radiochemistry chain data as part of the hoffman2009 library production release.…”

Modeled Neutron Induced Nuclear Reaction Cross Sections for Radiochemistry in the region of Iriduim and Gold

“…Previous papers treated the regions of bromine and krypton (Hoffman et al 2004a), iodine and xenon (Hoffman et al 2004b), samarium, europium, and gadolinium (Hoffman et al 2004c), scandium, titanium, vanadium, chromium, manganese, and iron (Kelley et al 2005), arsenic (Kelley et al 2006a), nickel, copper, and zinc (Kelley et al 2006b), and yttrium, zirconium, niobium, and molybdenum (Hoffman et al 2006c). Here we focus on neutron-induced reactions proceeding on targets of iridium and gold.…”

Evaluated Iridium, Yttrium, and Thulium Cross Sections and Integral Validation Against Critical Assembly and Bethe Sphere Measurements

“…Similar work on radchem cross section evaluations has been undertaken at Livermore, as is described in Refs. [2,3].…”