| Document ID (ISN) | 23895 |
| CIS number |
75-1610 |
| Year |
1974 |
| Convention or series no. |
|
| Author(s) |
Rodgers J.C. |
| Title |
Radon progeny exposure measurement using lead-210. |
| Bibliographic information |
HEW Publication No.(NIOSH)75-116, National Institute for Occupational Safety and Health, Post Office Building, Cincinnati, Ohio 45202, USA, Oct. 1974. 66p. Illus. 18 ref. |
| Abstract |
This technical information report describes investigations leading to a technique for monitoring the average alpha-exposure due to airborne decay products of radon-222 in a uranium mine atmosphere, laying stress on theoretical considerations. The basis of the method is to collect a long-term, high-volume sample, let the short-lived radon daughters decay to lead-210, and count the lead-210 using liquid scintillation techniques. Only a fraction of the lead-210 activity counted was attributed to the direct collection of short-lived daughters, however, the remainder being due to a variety of indeterminate background sources. Thus any continuous monitoring technique based on measuring accumulated lead-210 levels on an air filter or in a miner's blood comes up against serious problems. Appendices give details of Fairman's ion exchange procedure and (in summary) the dithizone separation technique. |
| Descriptors (primary) |
radon daughters; uranium mining; radiation monitoring; exposure evaluation |
| Descriptors (secondary) |
scintillation counters; radon; air sampling; alpha radiation; continuous monitoring; description of technique; mathematical analysis |
| Document type |
E - Books, reports, proceedings |
| Subject(s) |
Radiation
|
| Broad subject area(s) |
|
| Browse category(ies) |
Inorganic substances
Radon
Exposure evaluation
Mining and quarrying
|
