Publication Date:
1981-01-01
Description:
The Menlo Park radiocarbon laboratory of the US Geological Survey began operation in January 1976 in a new building with a counting room 9.8m below the ground surface. Shielding above the counters consists of 30cm lead and 8.2m earth. The ionizing cosmic ray flux at the counters is 0.28 cpm/cm2. Background levels obtained thus far are summarized in Table 1.
Print ISSN:
0033-8222
Electronic ISSN:
1945-5755
Topics:
Archaeology
,
Energy, Environment Protection, Nuclear Power Engineering
,
Geosciences