Radiation beam calorimetric power measurement system
Abstract
A radiation beam calorimetric power measurement system for measuring the average power of a beam such as a laser beam, including a calorimeter configured to operate over a wide range of coolant flow rates and being cooled by continuously flowing coolant for absorbing light from a laser beam to convert the laser beam energy into heat. The system further includes a flow meter for measuring the coolant flow in the calorimeter and a pair of thermistors for measuring the temperature difference between the coolant inputs and outputs to the calorimeter. The system also includes a microprocessor for processing the measured coolant flow rate and the measured temperature difference to determine the average power of the laser beam.
- Inventors:
-
- Livermore, CA
- Pleasanton, CA
- Ripon, CA
- Dublin, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 868503
- Patent Number(s):
- 5156459
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- radiation; beam; calorimetric; power; measurement; measuring; average; laser; including; calorimeter; configured; operate; wide; range; coolant; flow; rates; cooled; continuously; flowing; absorbing; light; convert; energy; heat; meter; pair; thermistors; temperature; difference; inputs; outputs; microprocessor; processing; measured; rate; determine; measured temperature; flowing coolant; temperature difference; flow meter; flow rates; laser beam; flow rate; coolant flow; wide range; average power; beam energy; absorbing light; continuously flowing; radiation beam; power measurement; calorimetric power; beam calorimetric; /374/324/
Citation Formats
Baker, John, Collins, Leland F, Kuklo, Thomas C, and Micali, James V. Radiation beam calorimetric power measurement system. United States: N. p., 1992.
Web.
Baker, John, Collins, Leland F, Kuklo, Thomas C, & Micali, James V. Radiation beam calorimetric power measurement system. United States.
Baker, John, Collins, Leland F, Kuklo, Thomas C, and Micali, James V. Wed .
"Radiation beam calorimetric power measurement system". United States. https://www.osti.gov/servlets/purl/868503.
@article{osti_868503,
title = {Radiation beam calorimetric power measurement system},
author = {Baker, John and Collins, Leland F and Kuklo, Thomas C and Micali, James V},
abstractNote = {A radiation beam calorimetric power measurement system for measuring the average power of a beam such as a laser beam, including a calorimeter configured to operate over a wide range of coolant flow rates and being cooled by continuously flowing coolant for absorbing light from a laser beam to convert the laser beam energy into heat. The system further includes a flow meter for measuring the coolant flow in the calorimeter and a pair of thermistors for measuring the temperature difference between the coolant inputs and outputs to the calorimeter. The system also includes a microprocessor for processing the measured coolant flow rate and the measured temperature difference to determine the average power of the laser beam.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}
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Works referenced in this record:
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journal, March 1976
- Lovell, S.; Shen, H.
- Physics in Medicine and Biology, Vol. 21, Issue 2
Absolute Water Flow Calorimeter for the Measurement of Intense Beams of Radiant Energy
journal, July 1954
- Willoughby, A. B.
- Review of Scientific Instruments, Vol. 25, Issue 7