Total body-calcium measurements: comparison of two delayed-gamma neutron activation facilities.
This study compares two independently calibrated delayed-gamma neutron activation (DGNA) facilities, one at the Brookhaven National Laboratory (BNL), Upton, New York, and the other at the Children's Nutrition Research Center (CNRC), Houston, Texas that measure total body calcium (TBCa). A set of BNL phantoms was sent to CNRC for neutron activation analysis, and a set of CNRC phantoms was measured at BNL. Both facilities showed high precision (< 2%), and the results were in good agreement, within 5%.
Ma
R
R
Medical Department, Brookhaven National Laboratory, Upton, NY 11973, USA. ma2@bnl.gov
Ellis
K J
KJ
Yasumura
S
S
Shypailo
R J
RJ
Pierson
R N
RN
D002118:Calcium / Q000032:analysis*; D006801:Humans; D009501:Neutron Activation Analysis / Q000379:methods*; D009518:New York; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D013781:Texas
D002118:Calcium