TY - JOUR 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. SP - 361 LP - 362 DO - 10.2967/jnmt.120.243345 VL - 48 IS - 4 AU - Keexia L. Osborne AU - Cybil J. Nielsen AU - John R. Bullock AU - S. Gregory Jennings Y1 - 2020/12/01 UR - http://tech.snmjournals.org/content/48/4/361.abstract N2 - 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. ER -