HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Tsialas, S. P. Articles by Hine, G. J. Search for Related Content PubMed PubMed Citation Articles by Tsialas, S. P. Articles by Hine, G. J.

Collimator Characteristics for Radioisotope Scanning

International Atomic Energy Agency, Vienna, Austria

Correspondence: For reprints contact: Gerald J. Hine,Veterans Administration, Dept. of Medicine and Surgery, Washington, D.C. 20420.

ABSTRACT

The physical properties of a collimator-detector system for rectilinear scanning are described by its spatial resolution, its plane-source sensitivity and its septum penetration. These three parameters depend on the design and dimensions of the collimator, the energy of the gamma rays employed and the properties of the detection system.

For a particular gamma-ray emitter, the three collimator parameters can be determined from scans of a line source in air. A knowledge of these parameters is indispensable for the selection and best use of a collimator for a particular scanning application. Special attention must be given to the variation of collimator resolution with distance from the face of the collimator. Values for the three parameters have been determined for 18 collimators from three manufacturers.

FOOTNOTES

^* Present address: Veterans Administration, Washington, D.C