Apparatus, method and system for imaging and utilization of SEM charged particles
Abstract
A scanning electron microscope (SEM) system includes an SEM objective that emits an electron beam toward a sample, causing emission of charged particles including secondary electrons, Auger electrons, backscattered electrons, anions and cations. The SEM system includes electron optics elements that are configured to establish electric fields around the sample that accelerate charged particles toward a detector. A two-dimensional distribution of locations of incidence of the charged particles on the detector is indicative of energies of the charged particles and their emission angles from the sample. A three-dimensional spatial distribution of charged particles emitted from the sample is recovered by performing an Abel transform over the distribution on the detector. The energies and emission angles of the charged particles are then determined from the three-dimensional spatial distribution.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1735243
- Patent Number(s):
- 10770262
- Application Number:
- 16/198,356
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- DOE Contract Number:
- NA0003525
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 11/21/2018
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 47 OTHER INSTRUMENTATION
Citation Formats
Chandler, David W., and Celio, Kimberlee Chiyoko. Apparatus, method and system for imaging and utilization of SEM charged particles. United States: N. p., 2020.
Web.
Chandler, David W., & Celio, Kimberlee Chiyoko. Apparatus, method and system for imaging and utilization of SEM charged particles. United States.
Chandler, David W., and Celio, Kimberlee Chiyoko. Tue .
"Apparatus, method and system for imaging and utilization of SEM charged particles". United States. https://www.osti.gov/servlets/purl/1735243.
@article{osti_1735243,
title = {Apparatus, method and system for imaging and utilization of SEM charged particles},
author = {Chandler, David W. and Celio, Kimberlee Chiyoko},
abstractNote = {A scanning electron microscope (SEM) system includes an SEM objective that emits an electron beam toward a sample, causing emission of charged particles including secondary electrons, Auger electrons, backscattered electrons, anions and cations. The SEM system includes electron optics elements that are configured to establish electric fields around the sample that accelerate charged particles toward a detector. A two-dimensional distribution of locations of incidence of the charged particles on the detector is indicative of energies of the charged particles and their emission angles from the sample. A three-dimensional spatial distribution of charged particles emitted from the sample is recovered by performing an Abel transform over the distribution on the detector. The energies and emission angles of the charged particles are then determined from the three-dimensional spatial distribution.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 08 00:00:00 EDT 2020},
month = {Tue Sep 08 00:00:00 EDT 2020}
}
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