Electron energy loss spectrometer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 8, 2018
Issued Date -
N/A
app pub date -
Jun 25, 2015
filing date -
Jun 27, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electron energy loss spectrometer for electron microscopy is disclosed having an electrically isolated drift tube extending through the bending magnet and through subsequent optics that focus and magnify the spectrum. An electrostatic or magnetic lens is located either before or after or both before and after the drift tube and the lens or lenses are adjusted as a function of the bending magnet drift tube voltage to maintain a constant net focal length and to avoid defocusing. An energy selecting slit is included in certain embodiments to cleanly cut off electrons dispersed outside the energy range incident on the detector, thereby eliminating artifacts caused by unwanted electrons scattering back into the spectrum.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- H01J Class
- 31.16 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 8, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 8, 2029 |
