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A method for the calibration of concave sup 90 Sr+ sup 90 Y ophthalmic applicators

Abstract

At the Amersham Laboratory (Amersham, UK) absorbed-dose rate in tissue at a depth of 7 mg cm{sup -2} from curved ophthalmic applicators is measured with calibrated scintillator probes (Amersham International 1979, Sinclair and Trott 1956). The probes are approximately 3 mm in diameter, 0.5 mm thick and are covered with 7 mg cm{sup -2} of aluminium. They are calibrated using standard sources whose dose rate has been determined using an extrapolation chamber equipped with a 3 mm diameter collecting electrode. Crucial to this technique is the availability of well calibrated sources of nearly the same geometry and dose rate as the source to be calibrated. A technique is presented here which yields accurate measurement of the surface absorbed-dose rate in a very simple and straightforward fashion. (author).
Authors:
Soares, C G [1] 
  1. National Inst. of Standards and Technology, Gaithersberg, MD (United States). Ionizing Radiation Div.
Publication Date:
Apr 01, 1992
Product Type:
Journal Article
Reference Number:
AIX-23-048430; EDB-92-106604
Resource Relation:
Journal Name: Physics in Medicine and Biology; (United Kingdom); Journal Volume: 37:4
Subject:
07 ISOTOPES AND RADIATION SOURCES; EYES; RADIOTHERAPY; OPHTHALMOLOGY; RADIATION SOURCES; CALIBRATION; CORRECTIONS; ERRORS; SHAPE; SPATIAL DOSE DISTRIBUTIONS; STRONTIUM 90; YTTRIUM 90; ALKALINE EARTH ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BODY; BODY AREAS; DAYS LIVING RADIOISOTOPES; EVEN-EVEN NUCLEI; FACE; HEAD; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MEDICINE; NUCLEAR MEDICINE; NUCLEI; ODD-ODD NUCLEI; ORGANS; RADIATION DOSE DISTRIBUTIONS; RADIOISOTOPES; RADIOLOGY; SENSE ORGANS; STRONTIUM ISOTOPES; THERAPY; YEARS LIVING RADIOISOTOPES; YTTRIUM ISOTOPES; 070207* - Radiation Sources- Radiation Source Metrology- (1992-)
OSTI ID:
5216993
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0031-9155; CODEN: PHMBA
Submitting Site:
GBN
Size:
Pages: 1005-1007
Announcement Date:
Aug 01, 1992

Citation Formats

Soares, C G. A method for the calibration of concave sup 90 Sr+ sup 90 Y ophthalmic applicators. United Kingdom: N. p., 1992. Web. doi:10.1088/0031-9155/37/4/014.
Soares, C G. A method for the calibration of concave sup 90 Sr+ sup 90 Y ophthalmic applicators. United Kingdom. doi:10.1088/0031-9155/37/4/014.
Soares, C G. 1992. "A method for the calibration of concave sup 90 Sr+ sup 90 Y ophthalmic applicators." United Kingdom. doi:10.1088/0031-9155/37/4/014. https://www.osti.gov/servlets/purl/10.1088/0031-9155/37/4/014.
@misc{etde_5216993,
title = {A method for the calibration of concave sup 90 Sr+ sup 90 Y ophthalmic applicators}
author = {Soares, C G}
abstractNote = {At the Amersham Laboratory (Amersham, UK) absorbed-dose rate in tissue at a depth of 7 mg cm{sup -2} from curved ophthalmic applicators is measured with calibrated scintillator probes (Amersham International 1979, Sinclair and Trott 1956). The probes are approximately 3 mm in diameter, 0.5 mm thick and are covered with 7 mg cm{sup -2} of aluminium. They are calibrated using standard sources whose dose rate has been determined using an extrapolation chamber equipped with a 3 mm diameter collecting electrode. Crucial to this technique is the availability of well calibrated sources of nearly the same geometry and dose rate as the source to be calibrated. A technique is presented here which yields accurate measurement of the surface absorbed-dose rate in a very simple and straightforward fashion. (author).}
doi = {10.1088/0031-9155/37/4/014}
journal = {Physics in Medicine and Biology; (United Kingdom)}
volume = {37:4}
journal type = {AC}
place = {United Kingdom}
year = {1992}
month = {Apr}
}