Category: electronics & instrumentation
BNL Reference Number: BSA 08-14
Patent Status: U.S. Patent Number 7,858,949 was issued on December 28, 2010
The high-pressure xenon (HPXe) ionization chamber detects ionizing radiation and high-energy particles. The anode of this HPXe chamber is uniquely separated into non-contacting stacked elements arranged concentrically with the longitudinal axis of the chamber. The novel design offers superior performance, stability, and cleaner radiation signatures.
The present invention includes a high-energy detector with a cathode chamber, a support member, and anode segments. The cathode chamber extends along a longitudinal axis. The support member is fixed within the cathode chamber and extends from the first end of the chamber to the second. The anode segments are supported by the support member and spaced along the longitudinal surface of the support. The anode segments' stacked configuration generates at least a first electrical signal in response to electrons impinging thereon.
The inventive HPXe radiation detector shows superior performance in its reduced sensitivity to acoustic noise through reduction of parasitic capacitance.
Deployed as a single detector or in an array, the HPXe detector can be used to detect radiation and to distinguish benign materials from threats. The detector may also find use in other industrial or construction fields such as wellbore logging.
For more information about this technology, contact Kimberley Elcess, (631) 344-4151.