The 19th International Workshop on Low Temperature Detectors (LTD19) was an opportunity for researchers from around the world to exchange information about the science of cryogenic sensors, instruments based on these sensors, and applications of these instruments. The LTD workshop has been held every two years since 1986. In 2021, LTD19 was held virtually due to the covid19 pandemic. The workshop consisted of oral and poster presentations, vendor exhibits, and a job fair.
LTD19 consisted of 8 half-day sessions spread over 2 weeks. During the first week (July 19-23), the sessions were in the U.S. morning to accommodate participants joining from European time zones. During the second week (July 26-29), the sessions were held late in the U.S. day to accommodate participants joining from Asian time zones.