PGAAPet Guardian Angels of America
PGAAPrompt Gamma-Ray Activation Analysis
References in periodicals archive ?
Along with tw comparable installations built at about the sam time (113, 114), this system inaugurated the modern combination of high-power neutron beams and larg germanium gamma spectrometers for sensitive multi element PGAA.
NIST established th world's first permanent cold-neutron PGAA spectro meter (115,116) and still has the highest-flux facility service anywhere (117).
An especially important element is hydrogen, which can be measured by PGAA (123) but by few chemical methods.
Neutron fluxes and availability of the PGAA and NDP instruments at the NCNR facility are currently unmatched.
This study demonstrates that the PGAA polymers enabled low toxicity delivery in vivo.