Implementation of the α-CHERS diagnostic for D-T operation of TFTR

G. R. McKee; R. J. Fonck; T. A. Thorson; B. C. Stratton

doi:10.1063/1.1146314

Implementation of the α-CHERS diagnostic for D-T operation of TFTR

G. R. McKee
, R. J. Fonck
, T. A. Thorson
, B. C. Stratton

PPPL NSTX

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The α-CHERS diagnostic is a high throughput charge exchange recombination spectroscopy diagnostic designed to measure the density profile and time evolution of 0-500 keV alpha particles during D-T operation of the Tokamak Fusion Test Reactor (TFTR). Following successful tests with a prototype α-CHERS system, an improved, multichannel system has been installed for D-T operation. Three spatial channels may be observed simultaneously, and the spectral resolution of 0.5 nm permits increased alpha energy resolution and improved impurity line identification. More efficient coupling optics between the spectrometer and charge coupled device (CCD) detectors have increased the light throughput, and radiation shielding has been installed around the detectors and spectrometers to eliminate the neutron/gamma-ray noise observed in high power D-D plasmas.

Original language	English (US)
Pages (from-to)	643-645
Number of pages	3
Journal	Review of Scientific Instruments
Volume	66
Issue number	1
DOIs	https://doi.org/10.1063/1.1146314
State	Published - 1995

All Science Journal Classification (ASJC) codes

Instrumentation

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10.1063/1.1146314

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title = "Implementation of the α-CHERS diagnostic for D-T operation of TFTR",

abstract = "The α-CHERS diagnostic is a high throughput charge exchange recombination spectroscopy diagnostic designed to measure the density profile and time evolution of 0-500 keV alpha particles during D-T operation of the Tokamak Fusion Test Reactor (TFTR). Following successful tests with a prototype α-CHERS system, an improved, multichannel system has been installed for D-T operation. Three spatial channels may be observed simultaneously, and the spectral resolution of 0.5 nm permits increased alpha energy resolution and improved impurity line identification. More efficient coupling optics between the spectrometer and charge coupled device (CCD) detectors have increased the light throughput, and radiation shielding has been installed around the detectors and spectrometers to eliminate the neutron/gamma-ray noise observed in high power D-D plasmas.",

author = "McKee, \{G. R.\} and Fonck, \{R. J.\} and Thorson, \{T. A.\} and Stratton, \{B. C.\}",

year = "1995",

doi = "10.1063/1.1146314",

language = "English (US)",

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journal = "Review of Scientific Instruments",

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T1 - Implementation of the α-CHERS diagnostic for D-T operation of TFTR

AU - McKee, G. R.

AU - Fonck, R. J.

AU - Thorson, T. A.

AU - Stratton, B. C.

PY - 1995

Y1 - 1995

N2 - The α-CHERS diagnostic is a high throughput charge exchange recombination spectroscopy diagnostic designed to measure the density profile and time evolution of 0-500 keV alpha particles during D-T operation of the Tokamak Fusion Test Reactor (TFTR). Following successful tests with a prototype α-CHERS system, an improved, multichannel system has been installed for D-T operation. Three spatial channels may be observed simultaneously, and the spectral resolution of 0.5 nm permits increased alpha energy resolution and improved impurity line identification. More efficient coupling optics between the spectrometer and charge coupled device (CCD) detectors have increased the light throughput, and radiation shielding has been installed around the detectors and spectrometers to eliminate the neutron/gamma-ray noise observed in high power D-D plasmas.

AB - The α-CHERS diagnostic is a high throughput charge exchange recombination spectroscopy diagnostic designed to measure the density profile and time evolution of 0-500 keV alpha particles during D-T operation of the Tokamak Fusion Test Reactor (TFTR). Following successful tests with a prototype α-CHERS system, an improved, multichannel system has been installed for D-T operation. Three spatial channels may be observed simultaneously, and the spectral resolution of 0.5 nm permits increased alpha energy resolution and improved impurity line identification. More efficient coupling optics between the spectrometer and charge coupled device (CCD) detectors have increased the light throughput, and radiation shielding has been installed around the detectors and spectrometers to eliminate the neutron/gamma-ray noise observed in high power D-D plasmas.

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JO - Review of Scientific Instruments

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IS - 1

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Implementation of the α-CHERS diagnostic for D-T operation of TFTR

Abstract

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