ML25335A194
| ML25335A194 | |
| Person / Time | |
|---|---|
| Site: | 11006627 |
| Issue date: | 11/26/2025 |
| From: | Samson Lee NRC/OIP |
| To: | Wilcox L Schlumberger Technology Corp |
| References | |
| Download: ML25335A194 (0) | |
Text
November 26 PXB251.00 the of Congo 5
contained in sealed sources is authorized to end users in for use in oil field servicing activities, including down hole well logging. When combined for shipping, individual shipments must not exceed Category 2 quantities. See page 4 for total number of sources and maximum levels for each source.
5 Neither this license nor any right under this license shall be assigned or otherwise transferred in violation of the provisions of the Atomic Energy Act of 1954, as amended.
This license is subject to the right of recapture or control by Section 108 of the Atomic Energy Act of 1954, as amended, and to all the other provisions of said Acts, now or hereafter in effect and to all valid rules and regulations of the Nuclear Regulatory Commission.
SAMUEL LEE Digitally signed by SAMUEL LEE Date: 2025.11.26 09:33:31 --05'00' Samuel Lee, Acting Deputy Director Office of International Programs November 26, 2025
LIST OF RADIOACTIVE SOURCES Maximum Maximum Activity of all Number sources for each Isotope Per Source Activity of Sources isotope in a single End Use in a single shipment shipment Cs-137 No single source to exceed 8
0.592 TBq {16 Ci)
Sealed source for Well 0.074 TBq (2 Ci)
Logging Am-241/Be No single source to exceed 6
3.552 (96 Ci)
Sealed Neutron Source 0.592 TBq {16 Ci) for Well Logging Cf-252 No single source to exceed 4
2.96 E-3 TBq {0.076 Ci)
Sealed Neutron Source 7.4 E-4 TBq {0.019 Ci) for Well Logging Cs-137 No single source to exceed 20 1.20 E-03 TBq {1.2 Ci)
Detector stabilization in 6 E-5 TBq (0.06 mCi) well logging instrument