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Related Concept Videos

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Calorimeters are useful to determine the heat released or absorbed by a chemical reaction. Coffee cup calorimeters are designed to operate at constant (atmospheric) pressure and are convenient to measure heat flow (or enthalpy change) accompanying processes that occur in solution at constant pressure. A different type of calorimeter that operates at constant volume, colloquially known as a bomb calorimeter, is used to measure the energy produced by reactions that yield large amounts of heat and...
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Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process or to measure the heat transferred to or from a substance. The heat is exchanged with a calibrated and insulated device called the calorimeter. Calorimetry experiments are based on the assumption that there is no heat exchange between the insulated calorimeter and the external environment. The well-insulated calorimeters prevent the transfer of heat between the calorimeter and its external...
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When objects at different temperatures are placed in contact with each other but isolated from everything else, they attain thermal equilibrium. A container that prevents heat transfer in or out is called a calorimeter, and the use of a calorimeter to make measurements is called calorimetry. Generally, these measurements involve heat or specific heat capacity. The term "calorimetry problem" is used for any problem where the specified objects are thermally isolated from their...
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A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
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In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...
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The Microcalorimeter for Industrial Applications.

Del Redfern1, Joe Nicolosi1, Jens Höhne2

  • 1EDAX Inc., 91 McKee Dr., Mahwah, NJ 07430 USA.

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|July 23, 2016
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Summary

NIST developed a transition-edge sensor (TES) microcalorimeter for high-resolution X-ray spectroscopy. Efforts focus on industrial application criteria like resolution, cooling, and count rates for future development.

Keywords:
cryogen-free coolingenergy resolutionmicrocalorimeter energy dispersivetransition-edge sensorx-ray microanalysisx-ray spectrometer

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Area of Science:

  • Physics
  • Materials Science
  • Nanotechnology

Background:

  • The semiconductor industry requires X-ray spectral resolution below 20 eV at 1.5 keV.
  • Existing technologies may not meet these demanding resolution requirements.
  • Transition-edge sensor (TES) microcalorimeters offer potential for advanced X-ray detection.

Purpose of the Study:

  • To present the development of a TES microcalorimeter by NIST for high-resolution X-ray spectroscopy.
  • To address key criteria for industrial adoption of TES technology.
  • To outline future development plans for enhanced performance and usability.

Main Methods:

  • Development of a novel TES microcalorimeter.
  • Evaluation of critical performance parameters: spectral resolution, cooling, hold time, count rates, and vibrations.
  • Analysis of data to assess current capabilities and identify areas for improvement.

Main Results:

  • Demonstrated achievement of high X-ray spectral resolution (<20 eV at 1.5 keV).
  • Identified and addressed challenges related to cooling, hold time, count rates, and vibrations.
  • Presented data on current efforts and progress in meeting industrial requirements.

Conclusions:

  • The developed TES microcalorimeter shows significant promise for industrial X-ray spectroscopy applications.
  • Addressing practical implementation challenges is crucial for market adoption.
  • Ongoing development aims to further optimize performance and reliability for industrial users.