Attachment 4

Description of Radio Lanthanum (RaLa) Experiment
     Description of Radio Lanthanum (RaLa) Experiment, John
Taschner, April 12, 1994.
                              Team Lead: ____________________
                                   Date: ____________________


Name of Experiment Radio Lanthanum (RaLa)


Description:

The RaLa experiments were an open air, high explosive testing
program involving La140.  There were about 254 experiments
conducted between 1944 and 1962.  The area was vacated and
cleaned up in 1963.

In 1950 the Air Force through their Cambridge Research Laboratory
conducted some atmospheric electrical conductivity tests in the
vicinity of Los Alamos as add-on-experiments to a few RaLa
experiments.


Date and Investigator(s):  RaLa experiments were conducted by a
series of Los Alamos operating groups from 1944 through 1962.


Location:  Experiments were carried out in Technical Area 10 in
Bayo Canyon about two miles east of Los Alamos.


Source of Information:  Reports and files are in several
locations, primarily in Los Alamos.  Related reports and memos
are interspersed among other subjects in numerous operating
groups' files.


Volume of Records:  It is estimated that there maybe as many as
sixty (60) cubic feet of files containing approximately three
thousand (3000) documents will be reviewed for relevant
information.


Other sites with Records or Involvement in Study:  Perhaps some
files at DOE/AL and the Air Force (Cambridge Laboratory).