New metal resistor bolometer for measuring vacuum ultraviolet and soft x radiation

Journal Article · Sun Apr 01 04:00:00 EST 1984 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.333272· OSTI ID:5136901

Mueller, E R; Mast, F

A new metal resistor bolometer has been developed by applying thin-film technology. It is composed of three layers, a 4-..mu..m-thick radiation absorber made of gold, a 7.5-..mu..m-thick kapton dielectric, and a 0.1-..mu..m-thick 5-k..cap omega.. gold resistor. This detector with the appropriate electronics shows a linear response to radiation power, including both neutral-particle emission and electromagnetic radiation from the soft x-ray part of the spectrum to the infrared. The bolometer has a very high operating reliability and sufficient suppression of ambient interference under extreme environmental conditions, such as high neutron and gamma radiation fluxes, high temperatures, mechanical vibrations, and strong electromagnetic fields. In plasma discharges in the ASDEX tokamak a radiation detection limit of 100 ..mu..W/cm/sup 2/ was obtained at a time resolution of 10 ms. The bolometers of an array can be calibrated in situ; the calibration data are reproducible and stable in time within +- 10%. Measurements in ASDEX which demonstrate the capability of the method are discussed.

• Research Organization: Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, Garching, Federal Republic of Germany
• OSTI ID: 5136901
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 55:7; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
BOLOMETERS
CALIBRATION
CLOSED PLASMA DEVICES
DESIGN
DISTRIBUTION
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
ELEMENTS
EQUIPMENT
FABRICATION
FAR ULTRAVIOLET RADIATION
FILMS
GOLD
INFRARED RADIATION
IONIZING RADIATIONS
LAYERS
MEASURING INSTRUMENTS
METALS
NEUTRON FLUX
OPERATION
PLASMA DIAGNOSTICS
RADIATION FLUX
RADIATIONS
RELIABILITY
RESISTORS
RESOLUTION
SOFT X RADIATION
SPATIAL DISTRIBUTION
STABILITY
THERMONUCLEAR DEVICES
THIN FILMS
TIME RESOLUTION
TIMING PROPERTIES
TOKAMAK DEVICES
TRANSITION ELEMENTS
ULTRAVIOLET RADIATION
VISIBLE RADIATION
X RADIATION