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- Strontium Program: Summary Report for October 1957
- Technical report was prepared by the Health and Safety Laboratory (HASL) with the objective of presenting a current picture of the Strontium Program. Abstract: Strontium 90 levels in fallout, milk, canned fish and tap water are summarized for data available up to September 15, 1957. Original data submitted during the month of September is included as an appendix. Data are presented to show the amount of Strontium 90 in fallout at sampling stations within and outside the United States.
- Strontium Program: Summary Report for December 1957
- Technical report was prepared by the Health and Safety Laboratory (HASL) with the objective of presenting a current picture of the Strontium Program. Abstract: Strontium 90 levels in fallout, milk, canned fish and tap water are summarized for data available up to November 30, 1957. Original data submitted during the month of November is included as an appendix. Data are presented to show the amount of Strontium 90 in fallout at sampling stations within and outside the United States.
- Strontium Program: Summary Report for January 1958
- Technical report was prepared by the Health and Safety Laboratory (HASL) with the objective of presenting a current picture of the Strontium Program. Abstract: Strontium 90 levels in fallout, milk, canned fish and tap water are summarized for data available up to December 30, 1957. Original data submitted during the month of December is included as an appendix. Data are presented to show the amount of Strontium 90 in fallout at sampling stations within and outside the United States.
- Strontium Program: Summary Report for February 1958
- Technical report was prepared by the Health and Safety Laboratory (HASL) with the objective of presenting a current picture of the Strontium Program. Abstract: Strontium 90 levels in fallout, milk, canned fish and tap water are summarized for data available up to February 30, 1958. Original data submitted during the month of February is included as an appendix. Data are presented to show the amount of Strontium 90 in fallout at sampling stations within and outside the United States.
- Some Variable Contributors to Natural Background
- It was suggested that radon concentrations in air and potassium fertilizers on the ground contribute appreciably to natural background radiation levels. The effect on natural background gamma radiation from radon and its associated daughters in equilibrium and from potassium in fertilizers has been calculated and found to be negligible. Background radiation intensities have been assumed to be on the order of 10 [mu]rad/hr.
- Strontium Program: Summary Report for March 1958
- Technical report was prepared by the Health and Safety Laboratory (HASL) with the objective of presenting a current picture of the Strontium Program. Abstract: Strontium 90 levels in fallout, milk, canned fish and tap water are summarized for data available up to February 28, 1957. Original data submitted during the month of February is included as an appendix. Data are presented to show the amount of Strontium 90 in fallout at sampling stations within and outside the United States.
- A Procedure for the Acid Extraction and Analysis of Strontium 90 in Soil With a Recommended Method for Soil Sampling
- Abstract: A procedure is described for the extraction and analysis of strontium 90 in soil. The method of collection, sub-sampling, extraction, separation and counting are discussed and the reproducibility and reliability of the analytical method evaluation.
- Strontium Program: Summary Report for April 1958
- Technical report was prepared by the Health and Safety Laboratory (HASL) with the objective of presenting a current picture of the Strontium Program. Abstract: Strontium 90 levels in fallout, milk, canned fish and tap water are summarized for data available up to April 5, 1958. Original data submitted during the month of March are included as an appendix. Data are presented to show the amount of Strontium 90 in fallout at sampling stations within and outside the United States.
- Strontium Program: Summary Report for May 1958
- Technical report was prepared by the Health and Safety Laboratory (HASL) with the objective of presenting a current picture of the Strontium Program. Abstract: Strontium 90 levels in fallout, milk, canned fish and tap water are summarized for data available up to May 1, 1958. Original data submitted during the month of April are included as an appendix. Data are presented to show the amount of Strontium 90 in fallout at sampling stations within and outside the United States.
- Strontium Program: Summary Report for June and July 1958
- Technical report was prepared by the Health and Safety Laboratory (HASL) with the objective of presenting a current picture of the Strontium Program. Abstract: Strontium 90 levels in fallout, milk, canned fish and tap water are summarized for data available up to July 28, 1958. Original data submitted during the month of June and the first two weeks in July are included as an appendix. Data are presented to show the amount of Strontium 90 in fallout at sampling stations within and outside the United States.
- Radiation Survey, Columbia University, Van De Graaff
- Abstract: During March 1958, representatives of the health and Safety Laboratory, New York Operations Office, visited Columbia University to make stray radiation measurement at the Van de Graff accelerator. A radiation survey was performed at the Van de Graaff electrostatic generator at Columbia University. The survey results do not indicate a particular need for additional shielding at this time. It is recommended that the analyzer area of the beam room should not be occupied during beam operations and the present interlock system should be modified by the installation of a photocell interlock as shown on the included plan.
- The Sequential Analysis of Ten Nuclides Occurring in Long Range Fallout Debris
- Abstract : Methods for the chemical separation of strontium, barium, cesium, cerium, yttrium, zirconium, niobium, and tungsten from complex matrices are described. Procedures for the radiometric determination of the longer-lived isotopes of these elements are outlined. Inert carriers are added and the sample is dissolved by fusion with sodium carbonate. The melt is leached first with water and then with hydrochloric acid. The elements are recovered from these fractions by a series of wet chemical and ion exchange procedures, and gravimetric and radiometric determinations performed.
- Low Background Nuclear Counting Equipment
- Abstract: Both direct and coincidence counting apparatus are described. The elimination of cosmic ray events by coincidence plus gamma ray shielding permits the reduction of counting rates far beyond that obtainable with shielding alone. By selection of materials and development of new components and techniques, the residual background count of beta counting equipment can be reduced to a very low value. Geiger counter equipment for routine laboratory measurements is described, have a background count of 0.7 c/m. Scintillation counters are shown to have a background of 0.2 c/m at 30% efficiency. A portable Geiger counter with a 3.7 c/m background is also described.
- Analog and Digital Readout on an IBM Output Writer
- Abstract: A control system to provide digital printing and to plot an analog trace on an electric operated IBM model 11C Output Writer is described. The Digital mode of operation translates multidigit numbers through a set of commands to print each digit serially, then presents them to the output writer in a time sequence. The Analog mode of operation converts a d.c. input voltage to a digital number and by tab and space bar commands translates the carriage horizontally a distance proportional to this number.
- A Transistorized Logarithmic Counter Ratemeter HASL Type TR-1
- Abstract: A four decade log count ratemeter based on a three diode pump section is described. The design equations for this system are included. The unit is contained in a chassis 3 1/2" high by 9 1/2" wide by 6" deep. All circuits are constructed on etched circuit boards to facilitate testing, construction, and servicing.
- The Significance of Urine Uranium Excretion Data
- 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.
- The Calculation of Some Bessel Functions for Criticality Problems
- Abstract: An easy to use method for evaluating Bessel functions is given. This method is applicable to the one-dimensional, 2-group, 2-region diffusion problem, and is designed primarily for use on a small or medium sized digital computer. ...FORTRAN programs based on this method are presented together with the output obtained from an IBM-1620 digital computer.
- Filters to Provide Nearly Monoenergetic X-Rays
- Abstract: Four filters for use with a 250 KVP pulsating X-ray machine were constructed to calibrate radiation detection instruments in the energy region below 200 KEV. Approximately monoenergetic beams of 63, 105, 150, and 180 KEV were produced. The spectral distribution was computer suing the formula of Kulenkampff. The energies were found to drop rapidly from the peak values. The average values were checked from absorption curves obtained experimentally and found to deviate from the computed peak values by 10%.
- Energy Absorption Spectrum in Air of Cosmic Ray Mu Mesons at Sea Level
- Abstract: "The energy absorption spectrum of cosmic ray mu mesons at sea level was inferred from the omnidirectional momentum, the latter being obtained from the directional intensities of muons in various energy intervals at zenith angles of 0, 30, 60, and 68 degrees. ...From the energy absorption spectrum, a sea level muon dose rate of 2.23 microrads per hour was determined. This is consistent with measurements of the total cosmic dose rate."
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: June 1, 1965 - September 1, 1965
- Report documenting radioactive fallout across the world, including material in the atmosphere, on land, and that has deposited into food and water supplies.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: September 1, 1971 - December 1, 1971, Appendix
- Report documenting radioactive fallout across the world, including material in the atmosphere, on land, and that has deposited into food and water supplies.
- A Transistorized Pulse Height Analyzer for Gamma Spectroscopy
- From abstract: "A scintillation detector has a pulse height output which is a linear function of the energy of impinging gamma radiation. A pulse height analyzer system determines the amplitude distribution of this train of pulses. The system also displays this information graphically in a form which is convenient for further analysis."
- Determining the "State of Charge" of Nickel-Cadmium Batteries by Farad Capacitance Measurements
- From abstract: "A rapid simple method has been developed for determining state of charge of the widely used nickel-cadium rechargeable battery. The method described is based on the experimentally verified relationship between farad capacitance and state of charge."
- Stratospheric Air Concentrations of Plutonium Isotopes
- A report on stratospheric air concentrations of plutonium isotopes.
- A Summary of Strontium 90 Analyses for Monthly Pot and Precipitation Collections
- Report summarizing strontium 90 analyses collected throughout the world in order to determine the relationship between precipitation and nuclear fallout.
- Health and Safety Laboratory Environmental Quarterly, March 1, 1976 - June 1, 1976
- Report that presents information regarding chemical and radioactive pollution in the world. Includes tabulations of radionuclides and lead in milk, food, and tapwater.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: September 1, 1973 - December 1, 1973, Appendix
- Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies. This appendix includes tables of monthly fallout deposition collections from 116 sites across the Earth and a list of radionuclides and their half-lives.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: December 1, 1973 - March 1, 1974
- Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: December 1, 1973 - March 1, 1974, Appendix
- Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies. This appendix includes tables of monthly fallout deposition collections from 116 sites across the Earth and a list of radionuclides and their half-lives.
- Health and Safety Laboratory Fallout Program Quarterly Summary: March 1, 1974 - June 1, 1974
- Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: March 1, 1974 - June 1, 1974, Appendix
- Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies. This appendix includes tables of monthly fallout deposition collections from 116 sites across the Earth and a list of radionuclides and their half-lives.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: September 1, 1970 - December 1, 1970, Appendix
- Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies. This appendix includes tables of monthly fallout deposition collections from 116 sites across the Earth and a list of radionuclides and their half-lives.
- Health and Safety Laboratory Environmental Quarterly Report: June 1, 1977 - September 1, 1977
- Report that presents information regarding chemical and radioactive pollution in the world. Includes tabulations of radionuclides and lead in milk, food, and tapwater.
- Health and Safety Laboratory Environmental Quarterly Report: October 1, 1977, Appendix
- Report that presents information regarding chemical and radioactive pollution in the world. This appendix includes a quarterly report of the deposition of strontium-90 and measurements of radionuclides and lead in surface air, milk, and tapwater. Includes a table of radionuclides.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: June 1, 1974 - September 1, 1974
- Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: June 1, 1974 - September 1, 1974, Appendix
- Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies. This appendix includes tables of monthly fallout deposition collections from 116 sites across the Earth and a list of radionuclides and their half-lives.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: September 1, 1973 - December 1, 1973
- Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies.
- HASL Contributions to the Study of Fallout in Food Chains
- Report compiling data from previous HASL reports regarding the radioactive contamination of foods. Individual food items as well as total diets are analyzed.
- Carbon-14 Measurements in the Atmosphere - 1953 to 1964
- Report regarding a program that measured carbon-14 that was released into the atmosphere above the United States via nuclear testing.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: December 1, 1964 - March 1, 1965
- Report that summarizes multiple laboratories' reports on global fallout deposition. Reports include data on Strontium-90 deposition recorded by the Health and Safety Laboratory, data from other laboratories, related interpretive reports, and recent publications related to fallout.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: June 1, 1963 - September 1, 1963
- Report that summarizes multiple laboratories' reports on global fallout deposition. Reports include data on Strontium-90 deposition recorded by the Health and Safety Laboratory, data from other laboratories, related interpretive reports, and recent publications related to fallout.
- Preselect Address Unit for the IBM 1620 Computer
- From Abstract: "A device is described which permits the user to stop an IBM 1620 Computer at any preselected instruction address to aid in program debugging. Computer timing considerations are discussed and a circuit description is provided."
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: September 1, 1963 - December 1, 1963
- Report that summarizes multiple laboratories' reports on global fallout deposition. Reports include data on Strontium-90 deposition recorded by the Health and Safety Laboratory, data from other laboratories, related interpretive reports, and recent publications related to fallout.
- Energy Dependence Determinations in the 60-180 KeV Range with an X-Ray Machine of Varying Output
- 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.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: September 1, 1962 - December 1, 1962
- Report that summarizes multiple laboratories' reports on global fallout deposition. Reports include data on Strontium-90 deposition recorded by the Health and Safety Laboratory, data from other laboratories, related interpretive reports, and recent publications related to fallout.
- Environmental Radiation Measurements in the Southeastern, Central and Western United States, 1962-1963
- Report describing the use of a 5" x 3" NaI(Tl) detector and a high pressure ionization chamber to obtain gamma ray spectra and total gamma dose rates at approximately 100 locations during the course of several survey trips in the southeastern, central, and western United States. Reasonably precise elements of the dose rates are made using the pulse height spectra and relatively simple methods of analysis. Total terrestrial dose rates as well as the partial dose rates from the uranium-238 series, thorium-232 series, potassium-40, zirconium-niobium-95, and rhodium-106 are tabulated for each location.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: March 1, 1964 - June 1, 1964
- Report that summarizes multiple laboratories' reports on global fallout deposition. Reports include data on Strontium-90 deposition recorded by the Health and Safety Laboratory, data from other laboratories, related interpretive reports, and recent publications related to fallout.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: March 1, 1965 - June 1, 1965
- Report that summarizes multiple laboratories' reports on global fallout deposition. Reports include data on Strontium-90 deposition recorded by the Health and Safety Laboratory, data from other laboratories, related interpretive reports, and recent publications related to fallout.
- The HASL Bone Program 1961-1964
- Report documenting the measuring of strontium-90 levels contained in the bones of children and adults of various age brackets across the United States.
- Health and Safety Laboratory Fallout Program Quarterly Summary Report: June 1, 1964 - September 1, 1964
- Report that summarizes multiple laboratories' reports on global fallout deposition. Reports include data on Strontium-90 deposition recorded by the Health and Safety Laboratory, data from other laboratories, related interpretive reports, and recent publications related to fallout.