Share
Detection of Nuclear Weapons and Materials: Science, Technologies, Observations Jonathan Medalia Specialist in Nuclear Weapons Policy: August 4, 2009
Congressional Research Service the Libr
(Author)
·
Jonathan Medalia
(Author)
·
Bibliogov
· Paperback
Detection of Nuclear Weapons and Materials: Science, Technologies, Observations Jonathan Medalia Specialist in Nuclear Weapons Policy: August 4, 2009 - Medalia, Jonathan ; Congressional Research Service the Libr
Choose the list to add your product or create one New List
✓ Product added successfully to the Wishlist.
Go to My Wishlists
Origin: U.S.A.
(Import costs included in the price)
It will be shipped from our warehouse between
Friday, August 09 and
Friday, August 16.
You will receive it anywhere in United Kingdom between 1 and 3 business days after shipment.
Synopsis "Detection of Nuclear Weapons and Materials: Science, Technologies, Observations Jonathan Medalia Specialist in Nuclear Weapons Policy: August 4, 2009"
Detection of nuclear weapons and special nuclear material (SNM, certain types of uranium and plutonium) is crucial to thwarting nuclear proliferation and terrorism and to securing weapons and materials worldwide. Congress has funded a portfolio of detection R&D and acquisition programs, and has mandated inspection at foreign ports of all U.S.-bound cargo containers using two types of detection equipment. Nuclear weapons contain SNM, which produces unique or suspect signatures that can be detected. It emits radiation, notably gamma rays (high-energy photons) and neutrons. SNM is very dense, so it produces a bright image on a radiograph (a picture like a medical x-ray) when x- rays or gamma rays are beamed through a container in which it is hidden. Using lead or other shielding to attenuate gamma rays would make this image larger. Nuclear weapons produce detectable signatures, such as radiation generated by or a noticeable image on a radiograph. Other detection techniques are also available. Nine technologies illustrate the detection portfolio: (1) A new scintillator material to improve detector performance and lower cost. (2) GADRAS, an application using multiple algorithms to determine the materials in a container by analyzing gamma-ray spectra. If materials are the eyes and ears of detectors, ...