Applications of a Small, Wide-range Gamma Detector PDF Download
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Author: Alwyn C. Lapsley
Publisher:
ISBN:
Category : Gamma ray detectors
Languages : en
Pages : 18
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Book Description
A small gamma probe operable between 100 mr/hr and 103 r/hr was built to measure gamma ray intensities near a large nonuniform source or in a large nonuniform field. The sensitive element, a thallium-activated sodium iodide crystal, is observed by a phototube. Four applications of the unit are described.
Author: Alwyn C. Lapsley
Publisher:
ISBN:
Category : Gamma ray detectors
Languages : en
Pages : 18
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Book Description
A small gamma probe operable between 100 mr/hr and 103 r/hr was built to measure gamma ray intensities near a large nonuniform source or in a large nonuniform field. The sensitive element, a thallium-activated sodium iodide crystal, is observed by a phototube. Four applications of the unit are described.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: David Gareth Jenkins
Publisher:
ISBN: 9780750314282
Category : Nuclear counters
Languages : en
Pages : 0
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Book Description
"Radiation detection is key to experimental nuclear physics as well as underpinning a wide range of applications in nuclear decommissioning, homeland security and medical imaging. This book presents the state-of-the-art in radiation detection of light and heavy ions, beta particles, gamma rays and neutrons. The underpinning physics of different detector technologies is presented, and their performance is compared and contrasted. Detector technology likely to be encountered in contemporary international laboratories is also emphasized. There is a strong focus on experimental design and mapping detector technology to the needs of a particular measurement problem. This book will be invaluable to PhD students in experimental nuclear physics and nuclear technology, as well as undergraduate students encountering projects based on radiation detection for the first time. Part of IOP Series in Nuclear Spectroscopy and Nuclear Structure." -- Prové de l'editor.
Author:
Publisher:
ISBN:
Category : Fission products
Languages : en
Pages : 196
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Book Description
Author: Wesley
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
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Book Description
The report covers the application of silicon semiconductor detectors to a wide-range, gamma-ray doserate meter using the detectors in a pulse counting mode. It reviews pertinent circuit and detector characteristics that establish the doserate ranges that can be covered, the energy dependence to be expected from both large lithium-drifted detectors and very small silicon junction diodes, and finally the stability requirements imposed on the electronics by the pulse mode of operation. Methods of tailoring the photon energy response of semiconductor detectors are reviewed. Particular attention is given to the effect on design of amplifier and detector noise and variations in the noise level. One example of a combination of detectors to cover the doserate range from 0.2 mR/h to 2000 R/h is shown. The report supports the conclusion that it is practical to make a survey meter, using silicon semiconductor detectors, that covers both the health physics and high doserate ranges of interest in military radiac design. (Author).
Author:
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 196
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Book Description
Author: D. Mackenzie Odell Odell
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Collecting debris samples following a nuclear event requires that operations be conducted from a considerable stand-off distance. An ultra-wide range gamma detector system has been constructed to accomplish both long range radiation search and close range hot sample collection functions. Constructed and tested on a REMOTEC Andros platform, the system has demonstrated reliable operation over six orders of magnitude of gamma dose from 100's of uR/hr to over 100 R/hr. Functional elements include a remotely controlled variable collimator assembly, a NaI(Tl)/photomultiplier tube detector, a proprietary digital radiation instrument, a coaxially mounted video camera, a digital compass, and both local and remote control computers with a user interface designed for long range operations. Long range sensitivity and target location, as well as close range sample selection performance are presented.
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1118
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Book Description
Author: P.J. Potts
Publisher: Springer Science & Business Media
ISBN: 1461532701
Category : Science
Languages : en
Pages : 631
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Book Description
The techniques available for the chemical analysis of silicate without an appreciation of what happens in between. rocks have undergone a revolution over the last 30 years. However, to use an analytical technique most effectively, No longer is the analytical balance the only instrument used it is essential to understand its analytical characteristics, in for quantitative measurement, as it was in the days of classi particular the excitation mechanism and the response of the cal gravimetric procedures. A wide variety of instrumental signal detection system. In this book, these characteristics techniques is now commonly used for silicate rock analysis, have been described within a framework of practical ana including some that incorporate excitation sources and detec lytical aplications, especially for the routine multi-element tion systems that have been developed only in the last few analysis of silicate rocks. All analytical techniques available years. These instrumental developments now permit a wide for routine silicate rock analysis are discussed, including range of trace elements to be determined on a routine basis. some more specialized procedures. Sufficient detail is In parallel with these exciting advances, users have tended included to provide practitioners of geochemistry with a firm to become more remote from the data production process. base from which to assess current performance, and in some This is, in part, an inevitable result of the widespread intro cases, future developments.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309110149
Category : Medical
Languages : en
Pages : 232
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Book Description
In the United States there are several thousand devices containing high-activity radiation sources licensed for use in areas ranging from medical uses such as cancer therapy to safety uses such as testing of structures and industrial equipment. Those radiation sources are licensed by the U.S. Nuclear Regulatory Commission and state agencies. Concerns have been raised about the safety and security of the radiation sources, particularly amid fears that they could be used to create dirty bombs, or radiological dispersal device (RDD). In response to a request from Congress, the U.S. Nuclear Regulatory Commission asked the National Research Council to conduct a study to review the uses of high-risk radiation sources and the feasibility of replacing them with lower risk alternatives. The study concludes that the U.S. government should consider factors such as potential economic consequences of misuse of the radiation sources into its assessments of risk. Although the committee found that replacements of most sources are possible, it is not economically feasible in some cases. The committee recommends that the U.S. government take steps to in the near term to replace radioactive cesium chloride radiation sources, a potential "dirty bomb" ingredient used in some medical and research equipment, with lower-risk alternatives. The committee further recommends that longer term efforts be undertaken to replace other sources. The book presents a number of options for making those replacements.
