Lmfbr Shielding Development Program. Interim Report. Preliminary Evaluation of Techniques for Predicting the Spectra of Neutrons Transmitted by Grid Plate Shields.
Year: 1970
Type: report
Abstract: This is an Interim progress report on the status of the LMPBR shielding program in progress at Oak Ridge lationa,l Laboratory.The effort is mainly concerned -with the evaluation and development of caleulational techniq,ues for predicting the flueace of neutrons that penetrate a sodium and stainless steel shield to reach the grid plate heneath the FFTP core.Experimental determinations of th© spectra of neutrons transmitted through 12~in,~ and 2i)~in.-thickshields of sodium, of iron, and iron ping plus sodium are G-csBpared vitb two-dimensional digerete ordinates calculations, aiid> in some cases, with Monte Carlo calculations of these spectra.Also presented are the results of a series of one-dimensional ASflSI calculations made to evaluate the effect of material choice in an early PPTF configuration.On the basis of the studies completed to date, a number of conclusions are presented outlining the current situation regarding shielding design calculations of this nature.HOTIGI T{H» document cenfoms mfofmotfon ol a |3reliit»mqiry nature and was j>repared primonfy for tntemat use at th® Oak Rrdg» Na-ftonal LahoratQfy It is »ub|ect to revision or correctiw and tWfefer* dees not represent a hna\ report frmMmmn m Tiiis mo^mmt is mumsm
DOI: 10.2172/4121783
Language: English
Subfield: Nuclear Energy and Engineering
Field: Energy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2522993012