http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009086898-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0332d288b73ae34f372ef93b9f5220d3 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2223-076 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J35-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N23-223 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J35-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N23-223 |
| filingDate | 2007-09-27^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_18071683ed6f483ee70b3ea7fadf9c2e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_233a29e9fb721fb6655d560d21104ce6 |
| publicationDate | 2009-04-02^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2009086898-A1 |
| titleOfInvention | Analytical x-ray tube for close coupled sample analysis |
| abstract | An x-ray device and method useful in performing close coupled sample analyses. The x-ray device includes an evacuated enclosure having a window and in which is disposed a cathode assembly, control grid, insulator, and anode arranged so that the anode is interposed between the electron source and the window. The anode includes a target surface oriented toward the window and the anode defines a drift tunnel which is substantially aligned with a hollow defined by the insulator. The control grid can be used to influence the energy of the electrons emitted by the filament of the cathode assembly. A high voltage field between the anode and filament causes electrons emitted by the cathode to accelerate rapidly through the insulator. After accelerating to an energy level consistent with the high voltage field, the electrons then pass through the drift tunnel without gaining any additional appreciable energy. The potential difference between the target surface and the window causes the drifting electrons to decelerate, and eventually stop, before they can strike the window. The decelerated electrons then re-accelerate, under the influence of the potential between the window and the anode, toward the target surface, striking the target surface and producing x-rays which are directed through the window so as to impact a sample. One or more detectors proximate to the sample sense the characteristic response emitted by the sample when it is struck by the x-rays produced by the x-ray tube. A computer in communication with the detectors facilitates processing and analysis of the characteristic response sensed by the detectors. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10483077-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013322601-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104067146-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9281155-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10901112-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101813710-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10976271-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10734188-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013230143-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2019019647-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016343533-A1 |
| priorityDate | 2007-09-27^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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