Published April 18, 1978 | Version v1
Patent Open

Calibrator for radioactivity well logging tools

Creators

Description

A radioactivity logging tool including a gamma ray detector is field calibrated with the help of a sleeve that has a radioactive material distributed therein and is clamped about the tool so as to completely surround the detector. The radioactive material is preferably uranium 238. It can be either distributed uniformly inside the sleeve or take the form of wires which extend along generatrices or circumferences of the sleeve

Availability note (English)

MF available from INIS under the Report Number.

Files

10423669.pdf

Files (316.4 kB)

Name Size Download all
md5:7a556d8e5e3d1da072e7ddad0f9b873e
316.4 kB Preview Download

Additional details

Additional titles

Augmented title (English)
Patent

Publishing Information

Imprint Pagination
6 p.
IPC:
Int. Cl.G01D18/00; G21G4/06.
IPC
Int. Cl.G01D18/00; G21G4/06.
Patent number
US patent document 4,085,323/A/

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
10423669
Subject category
S07: ISOTOPES AND RADIATION SOURCES; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
CALIBRATION; GAMMA LOGGING; GAMMA SOURCES; URANIUM 238
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; EVEN-EVEN NUCLEI; HEAVY NUCLEI; ISOTOPES; NUCLEI; RADIATION SOURCES; RADIOACTIVITY LOGGING; RADIOISOTOPES; URANIUM ISOTOPES; WELL LOGGING; YEARS LIVING RADIOISOTOPES