d blu is a research division of the New Mexico Institute of Mining and Technology (New Mexico Tech) located in Socorro, New Mexico.
e star in the center of the question mark is the insignia for the Army Service Forces to which soldiers w
orking on the Manhattan Project were assigned. Trinity Site July 16, 1945 "The effects could well be called unprecedented, magnificent, beautiful, stupendous, and terrifying. No man-made phenomenon of such tremendous power had ever occurred before. The lighting effects beggared description. The whole country was lighted by a searing
light with the intensity many times that of the midday sun." Brig. Gen. Thomas Farrell A national historic landmark on White Sands Missile Range--www.wsmr.army.rnil Radiation Basics Radiation comes from the nucleus of individual atoms. Simple atoms like oxygen are very stable. Its nucleus has eight
protons and eight neutrons and holds together well. The nucleus of a complex atom like uranium is not as stable. Uranium has 92 protons and 146 neutrons in its core. These unstable atoms tend to break down into more stable, si
mpler forms. When this happens the atom emits subatomic particles and gamma rays. This is where the word "radiation" comes from--the atom radiates particles and rays. Health physicists are concerned with four emissions from the nucleus of these
atoms. One of these radiations is the alpha particle which is relatively