Report covering a Victoreen Cavity Chamber which utilizes filtered beams from a 250 KVP, Ox 250 General Electric pulsating industrial X-ray machine. The facility, equipment, and procedure is described.

From Abstract: "This report is one of a sequence of quarterly reports, each designed to up-date its predecessor beginning with HASL-42, "Environmental Contamination from Weapon Tests." Herein are reported data which have accrued since HASL-51. In particular, the levels of strontium 90 in fallout, milk, tap water, vegetation, and foods are given, based on data available from November 1, 1958 to January 30, 1959."

Abstract: Urine uranium excretion data for persons exposed to uranium by inhalation are analyzed Data from both chronic and single massive exposures are included, and a generalized excretion pattern, applicable to any uranium compound absorbed by inhalation, is proposed. ...It is shown that it is not usually practical to use urine samples to monitor individual exposures. Such an evaluation is possible only with a suitable series of samples collected at known intervals past the exposure. It is also shown that it is not possible to determine chronic exposure levels from routine urine samples. Chronic exposure levels and body burdens can only be estimated with a sample series collected two or more weeks after the termination of exposure.

From introduction: "Following the USSR announcement of its intention to resume testing, arrangements were made for the three stations collecting individual rainfall samples to begin analyses for short-lived nuclides. Some of the data are now available and are reported here." From Data: "The available data, including samples for Houston, Texas and Louisville, Kentucky are given in the tables at the end of this report."

Report containing a computerized means to calculate the neutron interaction between fissionable material contained in cylinders up to an array size of 20 x 20 units.

From Introduction: "In this report, a detailed description will be given of each of the ionization chambers used, including in each case a discussion of the methods of calibration and of techniques utilized in inferring dose readings."

Report issued by the Atomic Energy Commission over studies conducted on the determination of cerium-144 in vegetation and soil. Materials and methods used in the determination are discussed. This report includes tables, and an illustration.

Report containing a method for the determination of beryllium in urine samples. Contains the necessary materials, apparatus, and reagents, as well as the procedure and its results.