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Micro faraday-element array detector for ion mobility spectroscopy

Patent ·
OSTI ID:982793
 [1];  [1];  [2];  [2]
  1. Albuquerque, NM
  2. Tucson, AZ
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An ion mobility spectrometer includes a drift tube having a collecting surface covering a collecting area at one end of the tube. The surface comprises a plurality of closely spaced conductive elements on a non-conductive substrate, each conductive element being electrically insulated from each other element. A plurality of capacitive transimpedance amplifiers (CTIA) adjacent the collecting surface are electrically connected to the plurality of elements, so charge from an ion striking an element is transferred to the capacitor of the connected CTIA. A controller counts the charge on the capacitors over a period of time.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
6,809,313
Application Number:
10/390,507
OSTI ID:
982793
Country of Publication:
United States
Language:
English

References (3)

Micromachined Faraday cup array using deep reactive ion etching journal January 2002
Output characteristics of stacked CMOS-type active pixel sensor for charged particles journal January 2001
Infrared imaging and spectroscopy with HAWAII and PICNIC arrays conference August 1998

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