| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_167786c998fa195b9384d11794b943c6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_df40a18be0f231c8f0770a5a07abfe0c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-542
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01T1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-583
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01T1-169
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01T1-185
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-587 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01D18-00 |
| filingDate |
2007-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2008-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ece7da5fe0cfd0d55122d87fea6207a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_961541f261b400b43fc0444f7c1d5027 |
| publicationDate |
2008-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7413345-B1 |
| titleOfInvention |
Calibration device and method of using same |
| abstract |
A calibration apparatus for the calibration of patient dose measurement and control systems of the character used in diagnostic radiology. The calibration apparatus includes a novel ion chamber that is of rigid construction. The ion chamber has a radiation input face that incorporates an optical alignment target or reticule having markings generally corresponding to a range of field sizes and shapes. A series of radio-opaque targets are embedded beneath the surface of the optical target to facilitate alignment using a radiation image. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10918889-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2021055450-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103987319-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11614559-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10531850-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103987319-A |
| priorityDate |
2007-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |