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Class Information
Number: 250/308
Name: Radiant energy > Inspection of solids or liquids by charged particles > Including a radioactive source
Description: Subject matter wherein the source of charged particles comprises a radioactive material.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7429733 |
Method and sample for radiation microscopy including a particle beam channel formed in the sample source |
Sep. 30, 2008 |
| 7420166 |
Real-time S-parameter imager |
Sep. 2, 2008 |
| 7394069 |
Large-field scanning of charged particles |
Jul. 1, 2008 |
| 7351525 |
Positronium-mediated method for identifying a contaminant gas in a gaseous mixture |
Apr. 1, 2008 |
| 7319223 |
Method and apparatus for characterizing a recess located on a surface of a substrate |
Jan. 15, 2008 |
| 7254212 |
Particulate matter analyzer, collecting filter and system for analyzing and collecting samples from fluids |
Aug. 7, 2007 |
| 7141790 |
Defect inspection instrument and positron beam apparatus |
Nov. 28, 2006 |
| 7005639 |
System and method of composition correction for beta gauges |
Feb. 28, 2006 |
| 6921896 |
Automatic backscatter gauge |
Jul. 26, 2005 |
| 6872936 |
Accelerated weathering apparatus |
Mar. 29, 2005 |
| 6818902 |
Positron source |
Nov. 16, 2004 |
| 6815676 |
Material defect evaluation apparatus using positron and its evaluation method |
Nov. 9, 2004 |
| 6740877 |
Scanning electron microscope and sample observation method using the same |
May. 25, 2004 |
| 6646261 |
SEM provided with a secondary electron detector having a central electrode |
Nov. 11, 2003 |
| 6642529 |
Methods for the automated testing of reticle feature geometries |
Nov. 4, 2003 |
| 6630666 |
Positron trap beam source for positron microbeam production |
Oct. 7, 2003 |
| 6627890 |
Particle beam apparatus for tilted observation of a specimen |
Sep. 30, 2003 |
| 6627908 |
Radiation source assembly and connector press used in producing such assemblies |
Sep. 30, 2003 |
| 6617599 |
Apparatus and method for automated indexing of a nuclear gauge |
Sep. 9, 2003 |
| 6573501 |
Holography transmission electron microscope |
Jun. 3, 2003 |
| 6555816 |
Scanning electron microscope and sample observation method using the same |
Apr. 29, 2003 |
| 6552338 |
Ion photon emission microscope |
Apr. 22, 2003 |
| 6465781 |
Method and apparatus for inspecting or measuring a sample based on charged-particle beam imaging, and a charged-particle beam apparatus |
Oct. 15, 2002 |
| 6310936 |
Thin layer nuclear density guage |
Oct. 30, 2001 |
| 6307205 |
Omega energy filter |
Oct. 23, 2001 |
| 6291823 |
Ion-induced electron emission microscopy |
Sep. 18, 2001 |
| 6285734 |
Method for determining element contents using wave dispersive and energy dispersive x-ray fluorescence analysis |
Sep. 4, 2001 |
| 6238522 |
Method and apparatus for measuring sheet thickness in a paper-making machine |
May. 29, 2001 |
| 6228664 |
Calibration method for radiation spectroscopy |
May. 8, 2001 |
| 6204507 |
Device for testing flat materials |
Mar. 20, 2001 |
| 6153884 |
Radioisotope proximity sensor |
Nov. 28, 2000 |
| 6149593 |
Method and apparatus for detecting beta radiation |
Nov. 21, 2000 |
| 6043489 |
Positron source |
Mar. 28, 2000 |
| 5753914 |
Method and apparatus for investigating the physical properties of material surface layer |
May. 19, 1998 |
| 5696372 |
High efficiency near-field electromagnetic probe having a bowtie antenna structure |
Dec. 9, 1997 |
| 5672876 |
Method and apparatus for measuring distribution of radioactive nuclide in subject |
Sep. 30, 1997 |
| 5627372 |
Measuring on-line tobacco rod basis weight using combined high accuracy/slow response and low accuracy/fast response gauges |
May. 6, 1997 |
| 5625187 |
Apparatus for measuring the density of accumulations of fibrous material in multiple rod making machines of the tobacco processing industry |
Apr. 29, 1997 |
| 5576541 |
Apparatus for measuring the basis weight |
Nov. 19, 1996 |
| 5530245 |
Surface characterization of catalytic materials by positron annihilation radiation lineshapes measurements |
Jun. 25, 1996 |
| 5509622 |
Protective cover, radiation shield and test unit for helicopter blade crack indicator |
Apr. 23, 1996 |
| 5510616 |
Cigarette density profile measurement system |
Apr. 23, 1996 |
| 5406085 |
Apparatus and method for rapid and nondestructive determination of lattice defects in semiconductor materials |
Apr. 11, 1995 |
| 5399859 |
Flow meter |
Mar. 21, 1995 |
| 5331163 |
Radioactive areal density detector with scintillating receiver |
Jul. 19, 1994 |
| 5233195 |
Methods and apparatus for measuring characteristics of moving webs |
Aug. 3, 1993 |
| 5229610 |
Method and apparatus for detecting hydrogen-containing compounds |
Jul. 20, 1993 |
| 5200619 |
Determination of interfacial states in solid heterostructures using a variable-energy positron beam |
Apr. 6, 1993 |
| 5182051 |
Raioactive tracing with particles |
Jan. 26, 1993 |
| 5166964 |
Method and apparatus for measuring density |
Nov. 24, 1992 |
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