http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102830128-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_25442769c522861812ae6b7be96fa2cd |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N23-00 |
| filingDate | 2012-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_411f34b90a376ce36b8f01015e724103 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7bc882d8a4cac23332f3d8d8d78041b |
| publicationDate | 2014-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102830128-B |
| titleOfInvention | Method for measuring 222Rn (radon) and 220Rn daughters in air by means of alpha energy disperse spectroscopy |
| abstract | Disclosed is a method for measuring 222Rn (radon) and 220Rn daughters in the air by means of an alpha disperse spectroscopy. The method includes collecting radon daughters in the air on a filter film by an air sampling pump, and measuring alpha radioactivity on the filter film by means of the alpha energy disperse spectroscopy. During measuring in short measuring period, measuring period is 2-20 minutes, the number of periods is larger than or equal to three, the number of 222Rn and 220Rn daughters on the filter film at the starting measuring time can be calculated by means of counts of different characteristic peaks of various measuring periods, and concentration of the 222Rn and 220Rn daughters in the air can be reasoned. During measuring in long measuring period, the number of measuring periods is two, both the two measuring periods are 30-300 minutes, the number of 222Rn and 220Rn daughters on the filter film at the starting measuring time can be calculated by means of counts of different characteristic peaks of the two measuring periods, and concentration of the 222Rn and 220Rn daughters in the air can be reasoned. |
| priorityDate | 2012-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 15.