PMID- 37404363
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20231031
IS  - 1044-677X (Print)
IS  - 2165-7254 (Electronic)
IS  - 1044-677X (Linking)
VI  - 99
IP  - 1
DP  - 1994 Jan-Feb
TI  - Cryogenic Blackbody Calibrations at the National Institute of Standards and 
      Technology Low Background Infrared Calibration Facility.
PG  - 77-87
LID - 10.6028/jres.099.008 [doi]
AB  - The Low Background Infrared Calibration Facility (LBIR) at the National Institute 
      of Standards and Technology has been in operation for calibration measurements of 
      the radiant power emitted from infrared radiation (IR) sources, such as cryogenic 
      blackbodies, for more than 2 years. The IR sources are sent to NIST by customers 
      from industry, government, and university laboratories. An absolute cryogenic 
      radiometer is used as the standard detector to measure the total radiant power at 
      its aperture. The low background is provided by a closed cycle helium 
      refrigeration system that maintains the inner parts of the calibration chamber at 
      20 K. The radiance temperature of the blackbody is deduced from the measured 
      power and compared with the blackbody temperature sensor data. The calibration 
      procedures and data analysis are illustrated using the measurements of a typical 
      blackbody.
FAU - Datla, R U
AU  - Datla RU
AD  - National Institute of Standards and Technology, Gaithersburg, MD 20899-0001.
FAU - Croarkin, M C
AU  - Croarkin MC
AD  - National Institute of Standards and Technology, Gaithersburg, MD 20899-0001.
FAU - Parr, A C
AU  - Parr AC
AD  - National Institute of Standards and Technology, Gaithersburg, MD 20899-0001.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Res Natl Inst Stand Technol
JT  - Journal of research of the National Institute of Standards and Technology
JID - 8912688
PMC - PMC8345260
OTO - NOTNLM
OT  - blackbody calibrations
OT  - cryogenic blackbodies
OT  - cryogenic radiometer
OT  - electrical substitution radiometry
OT  - low background infrared radiation calibrations
OT  - radiomclry
EDAT- 1994/01/01 00:00
MHDA- 1994/01/01 00:01
PMCR- 1994/01/01
CRDT- 2023/07/05 10:36
PHST- 1995/11/19 00:00 [accepted]
PHST- 1994/01/01 00:01 [medline]
PHST- 1994/01/01 00:00 [pubmed]
PHST- 2023/07/05 10:36 [entrez]
PHST- 1994/01/01 00:00 [pmc-release]
AID - jresv99n1p77_a1b [pii]
AID - 10.6028/jres.099.008 [doi]
PST - ppublish
SO  - J Res Natl Inst Stand Technol. 1994 Jan-Feb;99(1):77-87. doi: 
      10.6028/jres.099.008.