Defense Threat Reduction Agency, 6801 Telegraph Rd., Alexandria, VA 22310-3398

A -- FALLOUT MICROPHYSICS MODELING SOL AIC4511 POC Thomas L. Cox, Negotiator, (703) 325-1196 WEB: Click here to access the DTRA Current Solicitations, http://www.dtra.mil/acq/curproc.html. E-MAIL: Click here tto contact the contract specialist via, thomas.cox@dtra.mil. This synopsis is FOR INFORMATION ONLY. Proposed contract effort supports the development of improved models for the prediction of radioactive fallout from nuclear weapon detonations. These improved models will first be developed in the context of a first-principle hydrocode, and later used to improve the fallout prediction module NWPN in the DTRA HPAC PC-based collateral effects prediction tool. The overall objective of the proposed program is to improve the accuracy of predictions of collateral effects from nuclear fallout for a variety of nuclear burst scenarios. THis objective will be accomplished by first improving the modeling of fallout particle formation in the first-principles MAZe code. An integral part of the effort involves modifications to the MAZe computational fluid dynamics code, which Titan Corporation developed under DTRA sponsorship. Making these modifications requires an intimate knowledge of MAZe and only Titan Corporation possesses such expertise. DTRA has determined that Titan possesses unique expertise in the design and fielding of laboratory experiments involving particulates. DTRA intends to award a sole source contract to Titan Corporation for the above services on the basis that DTRA has determined that only Titan Corporation possesses the prerequisite knowledge and background for satisfactory performance. This synopisis is for informtion purposes only -- FOR INFORMATION CONTACT THOMAS L. COX, (202) 325-1196. -- SEE Note 22. Posted 05/28/99 (W-SN337215). (0148)

Loren Data Corp. http://www.ld.com (SYN# 0004 19990602\A-0004.SOL)