Mass spectrometry is an analytical technique that is used to measure the mass-to-charge ratio of ions. The results are presented as a mass spectrum, a plot of intensity as a function of the mass-to-ch
Discovery of neon isotopes
Replica of F.W. Aston's third mass spectrometer
Calutron mass spectrometers were used in the Manhattan Project for uranium enrichment.
Surface ionization source at the Argonne National Laboratory linear accelerator
A calutron is a mass spectrometer originally designed and used for separating the isotopes of uranium. It was developed by Ernest Lawrence during the Manhattan Project and was based on his earlier inv
Mass spectrometry
…techniques of mass spectrometry were devised by Arthur Jeffrey Dempster and F.W. Aston in 1918 and 1919 respectively. Sector mass spectrometers known as calutrons were developed by Ernest O. Lawrence and used for separating the isotopes of uranium during the Manhattan Project. Calutron mass spectrometers were…
Alpha I magnet, called the "Racetrack". The calutrons are located around the ring.
Frank Oppenheimer (center right) and Robert Thornton (right) examine the 4-source emitter for the improved Alpha calutron.
The XAX development unit at Oak Ridge was used for research, development and training.