RT Journal Article
SR Electronic
T1 A Comparison of Readings from Thermoluminescent Dosimeter Ring Badges Worn in Different Positions
JF Journal of Nuclear Medicine Technology
JO J. Nucl. Med. Technol.
FD Society of Nuclear Medicine
SP 361
OP 362
DO 10.2967/jnmt.120.243345
VO 48
IS 4
A1 Keexia L. Osborne
A1 Cybil J. Nielsen
A1 John R. Bullock
A1 S. Gregory Jennings
YR 2020
UL http://tech.snmjournals.org/content/48/4/361.abstract
AB Our purpose was to evaluate whether the position of a thermoluminescent dosimeter (TLD) crystal results in different exposure readings. Methods: Nine subjects wore 2 TLD badges (one facing inward, toward the palm, and one facing outward) for 2 mo. Both TLDs were worn on the middle finger of the dominant hand, with the inward-facing TLD placed at the bottom and the outward-facing TLD at the top. At the end of the first month, these TLDs were replaced with new ones for another month. Combined results from the badges for the 2 mo were recorded in millisieverts. A paired t test with 2-sample means was performed to compare the 2 positions in general nuclear medicine and PET/CT subjects, with an α of 0.05. Results: For all subjects and for the general nuclear medicine and PET/CT groups, mean exposure was greater for the inward-facing TLD. Conclusion: For a TLD worn on the dominant hand, extremity-exposure readings are maximized when the TLD faces inward.