Jean R Plummer

US Patent:

20180224334, Aug 9, 2018

Filed:

Feb 9, 2017

Appl. No.:

15/428639

Inventors:

- Aiken SC, US
Robert J. Lascola - NA SC, US
David Immel - Augusta GA, US
Jean R. Plummer - Aiken SC, US

International Classification:

G01J 3/42
G01J 3/427
G01N 21/31
G01J 3/02
G01J 3/10

Abstract:

Spectrophotometers and spectroscopy processes are described that can provide for in-line calibration at every spectral acquisition as well as for continuous response correction during sample processing. The spectrophotometers include multiple polychromatic light sources that include characteristic emission spectra for use as an internal wavelength drift calibration system that is independent of environmental factors. Correction functions provided by the internal calibration process can be applied continuously and across an entire sample spectrum. The intensity response of each spectrometer in a spectrophotometer can also be monitored and continuously corrected for stray light, dark current, readout noise, etc.

US Patent:

20160274041, Sep 22, 2016

Filed:

Mar 18, 2015

Appl. No.:

14/661624

Inventors:

- Aiken SC, US
Jean R. Plummer - Aiken SC, US

International Classification:

G01N 23/223

Abstract:

A calibration system for an image plate used to detect high-energy particles produced by a radioisotope includes a casing and an image plate holder disposed at least partially inside the casing. The image plate is retained by the image plate holder inside the casing. A calibration source generates energy inside the casing to prepare the image plate for detection.

US Patent:

20160170034, Jun 16, 2016

Filed:

Feb 12, 2016

Appl. No.:

15/042185

Inventors:

- Aiken GA, US
David M. Immel - Augusta GA, US
Matthew D. Folsom - Aiken SC, US
Jean R. Plummer - Aiken SC, US
Michael G. Serrato - Aiken SC, US

International Classification:

G01T 1/08
G01T 7/00

Abstract:

A radiation imaging system includes a casing and a camera disposed inside the casing. A first field of view through the casing exposes the camera to light from outside of the casing. An image plate is disposed inside the casing, and a second field of view through the casing to the image plate exposes the image plate to high-energy particles produced by a radioisotope outside of the casing. An optical reflector that is substantially transparent to the high-energy particles produced by the radioisotope is disposed with respect to the camera and the image plate to reflect light to the camera and to allow the high-energy particles produced by the radioisotope to pass through the optical reflector to the image plate.