Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

LLL plutonium lung counter calibration and discussion of errors

Conference ·
OSTI ID:7352945
The Whole Body Counter at Lawrence Livermore Laboratory is located in a shielded room 6.1 metres underground, and is equipped with a filtered air supply to remove approximately 99 percent of the radioactivity present from radon-thoron daughters in the air. Two Harshaw Phoswich detectors 120 mm in diameter are presently used for lung counting. An Alderson Remab phantom is used for calibration. This is a take-apart phantom which has a human skeleton and fillable compartments to simulate the body organs. The lung cavities can be filled with lung-equivalent material containing radioactive standards for calibration. Several uniformly loaded sets of these lungs have been made incorporating various isotopically pure radionuclides including /sup 238/Pu, /sup 239/Pu, and /sup 241/Am.
Research Organization:
California Univ., Livermore (USA). Lawrence Livermore Lab.
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
7352945
Report Number(s):
UCRL-78409; CONF-760634-4
Country of Publication:
United States
Language:
English