Author: Paul J. Lamperti
Publisher:
ISBN:
Category : Calibration
Languages : en
Pages : 144
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Book Description
Describes the calibration and irradiation of x-ray and gamma-ray instruments in terms of the physical quantity exposure at NBS. The calibrations are listed in NBS Special Publication 250 as calibrations 46010C through 46050S (formerly 8.3A through 8.3M).--cf. Abstract (p.iv).
Author: Paul J. Lamperti
Publisher: Diane Publishing Company
ISBN: 9780756727147
Category : Science
Languages : en
Pages : 87
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Book Description
Explains the process for establishing calibration or correction factors for radiation detectors, charge sensitivity tests for high-gain electrometers, and irradiations of passive dosimeters. Calibrations are performed by comparing the instrument to a primary standard, which includes 4 free-air chambers for x-rays and cavity ionization chambers for ceseum-137 and cobalt-60 gamma rays. This document presents details of the design and use of these standards, as well as a description of the quality assurance checks. Appendices: Attix chamber schematics; history of the measurement of current; typical ionization chamber calibration report; typical TLD calibration report; and typical electrometer calibration report. Charts and tables.
Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 142
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Book Description
Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 172
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Book Description
This Safety Report provides guidance on the establishment and operation of calibration facilities for radiation monitoring instruments. It reflects the current internationally accepted principles and recommended practices in calibration procedures, taking account of the major changes and developments that have occurred over the past decade.
Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 608
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Book Description
Author: James H. Walker
Publisher:
ISBN:
Category : Blackbody radiation
Languages : en
Pages : 76
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Book Description
Author: Sherman P. Fivozinsky
Publisher:
ISBN:
Category : Radiation
Languages : en
Pages : 472
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Book Description
Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 102
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Book Description
Author: Bruce F. Field
Publisher:
ISBN:
Category : Calibration
Languages : en
Pages : 56
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Book Description
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309371333
Category : Technology & Engineering
Languages : en
Pages : 203
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Book Description
Passenger screening at commercial airports in the United States has gone through significant changes since the events of September 11, 2001. In response to increased concern over terrorist attacks on aircrafts, the Transportation Security Administration (TSA) has deployed security systems of advanced imaging technology (AIT) to screen passengers at airports. To date (December 2014), TSA has deployed AITs in U.S. airports of two different technologies that use different types of radiation to detect threats: millimeter wave and X-ray backscatter AIT systems. X-ray backscatter AITs were deployed in U.S. airports in 2008 and subsequently removed from all airports by June 2013 due to privacy concerns. TSA is looking to deploy a second-generation X-ray backscatter AIT equipped with privacy software to eliminate production of an image of the person being screened in order to alleviate these concerns. This report reviews previous studies as well as current processes used by the Department of Homeland Security and equipment manufacturers to estimate radiation exposures resulting from backscatter X-ray advanced imaging technology system use in screening air travelers. Airport Passenger Screening Using Backscatter X-Ray Machines examines whether exposures comply with applicable health and safety standards for public and occupational exposures to ionizing radiation and whether system design, operating procedures, and maintenance procedures are appropriate to prevent over exposures of travelers and operators to ionizing radiation. This study aims to address concerns about exposure to radiation from X-ray backscatter AITs raised by Congress, individuals within the scientific community, and others.
