Elementary Nuclear Physics with a Van de Graaff Accelerator

The University of Washington Model FN tandem Van de Graaff accelerator is being used for the measurement of extremely small isotopic abundance ratios, notably 14C/12C and 10Be/9Be, in a joint project of the Nuclear Physics Laboratory (NPL) and the Quaternary Isotope Laboratory (QL). The experimental arrangements and technical developments are described, and some preliminary results on isotopic ratios in carbon and beryllium are presented.

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A nuclear physics teaching course using a Van de Graaff accelerator

Nuclear Instruments and Methods ◽

10.1016/0029-554x(71)90124-8 ◽

1971 ◽

Vol 92 (4) ◽

pp. 611

Author(s):

W. Bygrave

Keyword(s):

Nuclear Physics ◽

Physics Teaching ◽

Graaff Accelerator ◽

Van De Graaff

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Specimen Preparation of Near Surface Ion Irradiated Samples

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100117820 ◽

1985 ◽

Vol 43 ◽

pp. 170-171

Author(s):

K. F. Russell ◽

L. L. Horton

Keyword(s):

Radiation Damage ◽

Heavy Ions ◽

Target Material ◽

Metal Alloys ◽

Specimen Surface ◽

Specimen Preparation ◽

Particle Accelerators ◽

Near Surface ◽

Graaff Accelerator ◽

Van De Graaff

Beams of heavy ions from particle accelerators are used to produce radiation damage in metal alloys. The damaged layer extends several microns below the surface of the specimen with the maximum damage and depth dependent upon the energy of the ions, type of ions, and target material. Using 4 MeV heavy ions from a Van de Graaff accelerator causes peak damage approximately 1 μm below the specimen surface. To study this area, it is necessary to remove a thickness of approximately 1 μm of damaged metal from the surface (referred to as “sectioning“) and to electropolish this region to electron transparency from the unirradiated surface (referred to as “backthinning“). We have developed electropolishing techniques to obtain electron transparent regions at any depth below the surface of a standard TEM disk. These techniques may be applied wherever TEM information is needed at a specific subsurface position.

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Optical Lifetime Measurements Using a Positive Ion Van De Graaff Accelerator

Applied Optics ◽

10.1364/ao.7.000167 ◽

1968 ◽

Vol 7 (1) ◽

pp. 167 ◽

Cited By ~ 44

Author(s):

L. L. Nichols ◽

W. E. Wilson

Keyword(s):

Lifetime Measurements ◽

Graaff Accelerator ◽

Van De Graaff ◽

Positive Ion

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Particle accelerators in Mexico

Historical Studies in the Physical and Biological Sciences ◽

10.1525/hsps.2006.36.2.297 ◽

2006 ◽

Vol 36 (2) ◽

pp. 297-309

Author(s):

MARÍÍA DE LA PAZ RAMOS LARA

Keyword(s):

Latin America ◽

Nuclear Physics ◽

Particle Accelerator ◽

Particle Accelerators ◽

Van De Graaff ◽

Experimental Nuclear Physics

ABSTRACT The first Van de Graaff particle accelerator in Latin America was installed at the Universidad Nacional Autóónoma de Mééxico (UNAM) in 1952. This event marked the beginning of experimental nuclear physics, exclusively for peaceful purposes, in Mexico. The acquisition of this accelerator was fundamental for placing other accelerators into operation, which were used for both research and the resolution of national problems.

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