Skip to main content

Michal Chojnacky

Graduate Student

Graduate Student
Profile photo of Michal Chojnacky

Contact Information

Additional Info


Michal Chojnacky is a physicist in the Thermodynamic Metrology Group. Her work at NIST helps companies and other laboratories measure temperature accurately to regulate manufacturing processes and public utilities, keep products safe, and advance research and development in fields like aerospace, pharmaceuticals, and metrology. Michal leads NIST research on the storage and handling of vaccines, which are highly temperature-sensitive products. Her work supports the Centers for Disease Control and Prevention’s (CDC) Vaccines for Children Program, which distributes approximately $4 billion worth of federally subsidized vaccines to underinsured U.S. children each year. The program identifies current vaccine storage and handling practices and equipment, replicates these conditions in controlled laboratory experiments, and develops best practices guidance that is easily translated to a public health audience. She is also involved in the first U.S. effort to standardize vaccine storage equipment through the creation of an ANSI standard for vaccine refrigerators and freezers. Michal is also responsible for the primary NIST temperature realization and dissemination of the SI (kelvin) through the International Temperature Scale of 1990 (ITS-90). The NIST Standard Platinum Resistance Thermometer (SPRT) Calibration Laboratory provides SI temperature traceability through measurement services from the Ar TP (83.8 K) to the Ag FP (1234.9 K) to U.S. industry and critical national and international stakeholders, including military, aerospace, academic, and government laboratories. The lab also engages in international key comparisons and provides proficiency testing services to NVLAP stakeholder laboratories. She joined our group as a graduate student to complete her PhD studying microcomb for metrology applications

Research Groups

Recent Publications