Ultimate Passive Dosimeter

TDA Research, Inc. has designed and tested new sorbents thatcan improvethe performance of a commercial dosimeter badge.We demonstrated that our sorbent works well with eight differentclasses ofcontaminants specified by the DoD, five of which were previously not analyzable. Novel TDA sorbents wereexposed to known concentrations of toxicsubstances, the amounts thatcould beextracted from each sorbent were quantified chromatographically, and wecompared the performance of our sorbents with commercially availablecarbons (in mostcases ourcarbons performed better).We also tested our sorbents in an environmental chamber to replicate a field environment. In PhaseII,we will start with a proven badge and set ofsorbents used for the past15years by the Navy, and augment them with additional sorbents to capturegases notcurrently monitored. Thus,wecan rapidly and cost-effectively develop and produce an ultimate passive dosimeter that is light-weight,compact,stable and storable before and after use, and which can quantify the wearer’s time weighted exposure. At theend of the PhaseII project, our technology will havereached a TRL of7field demonstration, and we will supply the DOD with 50 badges for testing