As of now the costs of replacing existing radiation portal monitors with next-generation systems outweigh the benefits and the newer systems have only showed marginal improvements over those currently deployed, according to separate reports issued late last month from the National Academy of Sciences (NAS) and the Government Accountability Office (GAO). Despite the lackluster reviews of the Advanced Spectroscopic Portals (ASP)--which are being developed to complement, if not replace, polyvinyl toluene (PVT) radiation portal monitors--the Domestic Nuclear Detection Office (DNDO)…
Outside Reviewers See Few Positives in ASP Program
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