2,440 Matching Results

Search Results

Advanced search parameters have been applied.

Spectrometric Techniques for Measuring Environmental Gamma Radiation

Description: From Introduction: "We discuss in detail the equipment, calibration procedures, and techniques used to analyze the spectra, present evidence to substantiate the validity of the dose rate estimates, and examine several problems associated with field measurements, in particular the effects of radon migration from the soil, soil moisture, and fallout."
Date: October 1964
Creator: Beck, Harold L.; Condon, William J. & Lowder, Wayne M.
Partner: UNT Libraries Government Documents Department

Norfolk-Peninsula Area (ARMS-II)

Description: From Introduction: "The ARMS-II Norfolk - Peninsula area survey was one many that have been flown for the CETO since the nationwide ARMS program was started (1958). Figure 2 shows the location of the areas that have been completed to date. The purpose of the program is to measure the present environmental levels of gamma radiation in areas around nuclear facilities and planned nuclear activities."
Date: December 6, 1961
Creator: Guillou, R. B.
Partner: UNT Libraries Government Documents Department

Preliminary Investigation of Effects of Gamma Radiation on Age-Hardening Rate of an Aluminum-Copper Alloy

Description: "A preliminary investigation was made to determine the effects of gamma radiation on the age-hardening rate of an aluminum-copper alloy at temperatures of 32 and 70 degrees Fahrenheit. The gamma radiation from a 100-milligram radium source appeared to have no significant effect on the age-hardening rate of the alloy. A metallographic examination of the test specimens showed no microstructural changes that could be attributed to gamma radiation" (p. 1).
Date: June 20, 1947
Creator: Kittel, J. Howard
Partner: UNT Libraries Government Documents Department

Parr Area (ARMS-II)

Description: From Purpose of Survey: "The ARMS-II Parr area survey was one of many that have been flown for the CETO since the nationwide ARMS program was started (1958). Figure 2 shows the location of the areas survey as of Apr. 1, 1964. The purpose of the program is to measure the present environmental levels of gamma radiation in areas around nuclear facilities and planned nuclear activities."
Date: April 1964
Creator: Guillou, R. B.
Partner: UNT Libraries Government Documents Department

Process Monitor Analysis Victoreen Model 350

Description: Abstract: An analysis of the improved Model Number 350 Process Monitor was made so that it could be determined if this instrument would fulfill the need for gamma radiation detection instruments in the production buildings of Y-12. The results of these tests indicated the possibility of marked improvement in the monitor characteristics with minor redesigns. After these improvements have been made, this instrument will be a satisfactory monitor for this area.
Date: May 1, 1947
Creator: Harter, J. A. & Olson, E. L.
Partner: UNT Libraries Government Documents Department

Las Vegas Area (ARMS-II)

Description: From Abstract: "An Aerial Radiological Measuring Survey (ARMS) of the Las Vegas area was made for the Civil Effects Test Operations, Division of Biology and Medicine, U.S. Atomic Energy Commission, by Edgerton, Germeshausen & Grier, Inc., between May 21 and June 23, 1961. The survey was part of a nationwide program to measure present environmental levels of gamma radiation. Approximately 6000 traverse miles were flown, at an attitude of 500 ft above the ground, in a 100-mile square centered near Las Vegas. The EG&G ARMS-II instrumentation was used in the survey."
Date: October 1961
Creator: Guillou, R. B.; Hand, J. E. & Borella, H. M.
Partner: UNT Libraries Government Documents Department

Gamma-ray Imaging Methods

Description: In this document we discuss specific implementations for gamma-ray imaging instruments including the principle of operation and describe systems which have been built and demonstrated as well as systems currently under development. There are several fundamentally different technologies each with specific operational requirements and performance trade offs. We provide an overview of the different gamma-ray imaging techniques and briefly discuss challenges and limitations associated with each modality (in the appendix we give detailed descriptions of specific implementations for many of these technologies). In Section 3 we summarize the performance and operational aspects in tabular form as an aid for comparing technologies and mapping technologies to potential applications.
Date: October 5, 2006
Creator: Vetter, K; Mihailescu, L; Nelson, K; Valentine, J & Wright, D
Partner: UNT Libraries Government Documents Department

TABLE OF RADIOISOTOPES ARRANGED ACCORDING TO HALF-LIFE

Description: The tabulated data on radioisotopes are taken directly from the General Electric Chart of the Nuclides, Fifth Edition. The half lives, decay particles and energies, gamma energies, and total energy or mass are included in the table. (J.E.D.)
Date: December 1, 1957
Creator: Daniels, E. comp.
Partner: UNT Libraries Government Documents Department

A MONTE CARLO CODE FOR DEEP PENETRATIONS OF GAMMA RAYS

Description: Paper presented at Shielding Information Meeting, May 14-15, 1956, Marietta, Ga. This code employs special techniques for the express purpcse of tryirg to obtain reasonable estimates of deep penetrations of gamma rays in an infinite medium emitted from a point monoenergetic source. The code is presently in the debugging'' stage and wlll be tested agninst well known standards before it is used for production. (auth)
Date: June 1, 1958
Creator: Penny, S.K.
Partner: UNT Libraries Government Documents Department