X-ray or gamma ray systems or devices – Source – Electron tube
Reexamination Certificate
2007-09-04
2007-09-04
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Source
Electron tube
C378S207000
Reexamination Certificate
active
10440703
ABSTRACT:
A method and device for calibrating the energy response of detectors of photons in the range from about 0.5 keV to at least 100 keV. The device makes use of the inherent property of a polarizable crystal such as a pyroelectric crystal to produce monoenergetic x-rays when the crystal is heated or cooled in a partial vacuum. Specific calibration energies of x-ray emission, may be selected for the application of the user by selection of a coating to the pyroelectric crystal and an external foil. The calibration device may be disposed within the same housing as a penetrating radiation detector.
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http://web.archive.org/web/20021021125232/www.amptek.com/coolx.html Product disclosure, updated Sep. 20, 2002.
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Amptek Press Release, http://www.amptek.com/press.html (May 17, 2002).
Artman Thomas R.
Bromberg & Sunstein LLP
ThermoNITON Analyzers LLC
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