X-ray Attenuation Coefficients from 10 Kev to 100 Mev PDF Download
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Author: Gladys R. White
Publisher:
ISBN:
Category : Radiation
Languages : en
Pages : 120
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Book Description
Author: Gladys R. White
Publisher:
ISBN:
Category : Radiation
Languages : en
Pages : 120
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Book Description
Author: Gladys White Grodstein
Publisher:
ISBN:
Category : X-rays
Languages : en
Pages : 64
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Book Description
Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 852
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Book Description
Author: Rosemary T. McGinnies
Publisher:
ISBN:
Category : X-rays
Languages : en
Pages : 16
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Book Description
Author:
Publisher:
ISBN:
Category : Physical instruments
Languages : en
Pages : 52
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Book Description
Author: U.S. Atomic Energy Commission
Publisher:
ISBN:
Category : Nuclear physics
Languages : en
Pages : 138
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 77
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Author: W. F. Titus
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 32
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Book Description
The penetration into concrete of gamma radiation from fallout has been measured in an idealized geometry as a function of time after the detonation of a nuclear device. At the same time, the exposure dose rate in air at heights of 3 and 9 ft above the ground was measured with two detectors suspended from a tower and shielded from above with lead so as to be sensitive primarily to radiation from fallout on the ground. For this test a 'sandwich' made of seven concrete slabs, forming a mass of concrete with face dimensions large enough to reduce edge effects to a negligible amount, was buried with its top surface flush with the ground. Remote-reading detectors were placed between the concrete slabs, thus permitting measurements of dose rate as a function of depth in concrete. The concrete mass and the tower were located in the center of a cleared and leveled area approximately 200 yd in diameter. Thus the gamma radiation at the detectors originated from an essentially infinite-plane source of radiation. Results are presented both as a function of time after detonation and of depth of penetration of the radiation into concrete. A comparison of the results with theoretical calculations is made. (Author).
Author: Todd Pawlicki
Publisher: John Wiley & Sons
ISBN: 1118575261
Category : Medical
Languages : en
Pages : 344
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Book Description
The publication of this fourth edition, more than ten years on from the publication of Radiation Therapy Physics third edition, provides a comprehensive and valuable update to the educational offerings in this field. Led by a new team of highly esteemed authors, building on Dr Hendee’s tradition, Hendee’s Radiation Therapy Physics offers a succinctly written, fully modernised update. Radiation physics has undergone many changes in the past ten years: intensity-modulated radiation therapy (IMRT) has become a routine method of radiation treatment delivery, digital imaging has replaced film-screen imaging for localization and verification, image-guided radiation therapy (IGRT) is frequently used, in many centers proton therapy has become a viable mode of radiation therapy, new approaches have been introduced to radiation therapy quality assurance and safety that focus more on process analysis rather than specific performance testing, and the explosion in patient-and machine-related data has necessitated an increased awareness of the role of informatics in radiation therapy. As such, this edition reflects the huge advances made over the last ten years. This book: Provides state of the art content throughout Contains four brand new chapters; image-guided therapy, proton radiation therapy, radiation therapy informatics, and quality and safety improvement Fully revised and expanded imaging chapter discusses the increased role of digital imaging and computed tomography (CT) simulation The chapter on quality and safety contains content in support of new residency training requirements Includes problem and answer sets for self-test This edition is essential reading for radiation oncologists in training, students of medical physics, medical dosimetry, and anyone interested in radiation therapy physics, quality, and safety.
Author: John S. Pruitt
Publisher:
ISBN:
Category : Ionization chambers
Languages : en
Pages : 32
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Book Description
This report describes the use of an air-filled aluminum-alloy ionization chamber to determine the energy transported by a bremsstrahlung beam with maximum photon energy in the range 6 to 170 Mev. The experimental calibrations of this chamber over this energy range are given, as well as the results of calibration experiments made with a 250-kv constant-potential X-ray tube and with Cs137 and Co60 gamma-rays. Information is presented about the change in calibration when the chamber is used with different experimental conditions, and when either its dimensions or its alloy composition are changed slightly. This report can be used to construct a replica chamber and to determine its absolute calibration between 6 and 170 Mev under a variety of experimental conditions.
