New detector design improves gamma-ray measurements
Friday, April 6, 2012 - 07:31
in Physics & Chemistry
(Phys.org) -- In the pursuit of precision measurements, nothing is simple, even when the apparatus employed appears to be utterly uncomplicated. An instructive case in point is the new ionization chamber used to determine the U.S. primary standard for radiation dose in air -- or, strictly speaking, air kerma, the amount of kinetic energy released per unit mass of air by ionizing radiation.