ALDERMASTON'S TANDEM VAN DER GRAAF ACCELERATOR

Journal Article · Wed Jul 01 04:00:00 EDT 1959 · Nuclear Energy Engr.

OSTI ID:4231275

A discussion of the new 12-Mev tandem Van de Graaff accelerator is presented. Beams of charged particles up to 12-Mev energy are obtainable. Negative ion source is situated outside the top of a pressurized tank, down the length of which runs the evacuated acceleration tube into which ions are introduced. An electrostatic generator runs up the lower half of the stack, thus allowing the half-way point to achieve voltages up to +6 Mv. Inside the vacuum tube at this point is a stripper'' consisting of a tube 3/16 in. internal diameter and 24 in. long, into which gas is in continuous flow of 5 cm/sup 3/hr. By hard pumping at either end of the tube, it is possible to preserve the vacuum in the main tube at between 5 x 10/sup -5/ mm and 5 x 10/sup -6/ mm while the pressure in the stripper is kept at an average of 0.02 mm. The beam emerging from the negative ion source is focused before entering the accclerating tube and the beam emerging from the stripper is further accelerated. Experiments are presently being carried out at energies up to 10.3 Mev. (C.J.G.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-13-018201
• OSTI ID: 4231275
• Journal Information: Nuclear Energy Engr., Journal Name: Nuclear Energy Engr.
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BEAMS
CHARGED PARTICLES
ELECTRIC POTENTIAL
ELECTROSTATIC GENERATORS
ENERGY RANGE
ION SOURCES
IONIZATION
OPTICAL SYSTEMS
PARTICLE ACCELERATORS AND HIGH-VOLTAGE MACHINES
PRESSURE
PUMPS
STRIPPING
TANDEM ACCELERATORS
TUBES
VACUUM
VAN DE GRAAFF ACCELERATORS
VESSELS