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Title: 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:
 [1];  [2];  [3];  [4]
  1. (Livermore, CA)
  2. (Pleasanton, CA)
  3. (Ripon, CA)
  4. (Dublin, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
868503
Patent Number(s):
5156459
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
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 = {1992},
month = {1}
}

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