TFTR microwave reflectometer diagnostic

M. Mccarthy; E. Mazzucato; A. Nagy; R. Nazikian

doi:10.1109/FUSION.1991.218658

TFTR microwave reflectometer diagnostic

M. Mccarthy, E. Mazzucato, A. Nagy, R. Nazikian

PPPL Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

The TFTR (Tokamak Fusion Test Reactor) multichannel X-mode reflectometer system is intended to measure electron density fluctuations at fixed points in the plasma by resolving phase fluctuations in waves reflected from the plasma. The system comprises low-power, high-dynamic-range millimeter-band transceivers two pairs of cylindrical corrugated low-loss overmoded waveguides, remotely controlled beamsteering mirrors, and high-speed data acquisition and control electronics. At present a single 140-GHz channel is operational. Three additional channels, one of which can be frequency stepped, are planned to be operational for the next TFTR run period. These new channels should allow correlation measurements between fluctuations on different density layers. The authors describe the reflectometer instrumentation and design concerns relating to the TFTR environment and discuss the integration of additional channels into the existing single channel system. An example of the measurement capability of the system is presented.

Original language	English (US)
Title of host publication	Proceedings - 14th IEEE/NPSS Symposium Fusion Engineering, FUSION 1991
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1192-1194
Number of pages	3
ISBN (Electronic)	0780301323
DOIs	https://doi.org/10.1109/FUSION.1991.218658
State	Published - 1991
Event	14th IEEE/NPSS Symposium Fusion Engineering, FUSION 1991 - San Diego, United States Duration: Sep 30 1991 → Oct 3 1991

Publication series

Name	Proceedings - Symposium on Fusion Engineering

Conference

Conference	14th IEEE/NPSS Symposium Fusion Engineering, FUSION 1991
Country/Territory	United States
City	San Diego
Period	9/30/91 → 10/3/91

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Nuclear Energy and Engineering

Access to Document

10.1109/FUSION.1991.218658

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@inproceedings{77620e8da5cd4488b2def6bb519ab498,

title = "TFTR microwave reflectometer diagnostic",

abstract = "The TFTR (Tokamak Fusion Test Reactor) multichannel X-mode reflectometer system is intended to measure electron density fluctuations at fixed points in the plasma by resolving phase fluctuations in waves reflected from the plasma. The system comprises low-power, high-dynamic-range millimeter-band transceivers two pairs of cylindrical corrugated low-loss overmoded waveguides, remotely controlled beamsteering mirrors, and high-speed data acquisition and control electronics. At present a single 140-GHz channel is operational. Three additional channels, one of which can be frequency stepped, are planned to be operational for the next TFTR run period. These new channels should allow correlation measurements between fluctuations on different density layers. The authors describe the reflectometer instrumentation and design concerns relating to the TFTR environment and discuss the integration of additional channels into the existing single channel system. An example of the measurement capability of the system is presented.",

author = "M. Mccarthy and E. Mazzucato and A. Nagy and R. Nazikian",

note = "Publisher Copyright: {\textcopyright} 1991 IEEE.; 14th IEEE/NPSS Symposium Fusion Engineering, FUSION 1991 ; Conference date: 30-09-1991 Through 03-10-1991",

year = "1991",

doi = "10.1109/FUSION.1991.218658",

language = "English (US)",

series = "Proceedings - Symposium on Fusion Engineering",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "1192--1194",

booktitle = "Proceedings - 14th IEEE/NPSS Symposium Fusion Engineering, FUSION 1991",

address = "United States",

}

Mccarthy, M, Mazzucato, E, Nagy, A & Nazikian, R 1991, TFTR microwave reflectometer diagnostic. in Proceedings - 14th IEEE/NPSS Symposium Fusion Engineering, FUSION 1991., 218658, Proceedings - Symposium on Fusion Engineering, Institute of Electrical and Electronics Engineers Inc., pp. 1192-1194, 14th IEEE/NPSS Symposium Fusion Engineering, FUSION 1991, San Diego, United States, 9/30/91. https://doi.org/10.1109/FUSION.1991.218658

TFTR microwave reflectometer diagnostic. / Mccarthy, M.; Mazzucato, E.; Nagy, A. et al.
Proceedings - 14th IEEE/NPSS Symposium Fusion Engineering, FUSION 1991. Institute of Electrical and Electronics Engineers Inc., 1991. p. 1192-1194 218658 (Proceedings - Symposium on Fusion Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - TFTR microwave reflectometer diagnostic

AU - Mccarthy, M.

AU - Mazzucato, E.

AU - Nagy, A.

AU - Nazikian, R.

PY - 1991

Y1 - 1991

N2 - The TFTR (Tokamak Fusion Test Reactor) multichannel X-mode reflectometer system is intended to measure electron density fluctuations at fixed points in the plasma by resolving phase fluctuations in waves reflected from the plasma. The system comprises low-power, high-dynamic-range millimeter-band transceivers two pairs of cylindrical corrugated low-loss overmoded waveguides, remotely controlled beamsteering mirrors, and high-speed data acquisition and control electronics. At present a single 140-GHz channel is operational. Three additional channels, one of which can be frequency stepped, are planned to be operational for the next TFTR run period. These new channels should allow correlation measurements between fluctuations on different density layers. The authors describe the reflectometer instrumentation and design concerns relating to the TFTR environment and discuss the integration of additional channels into the existing single channel system. An example of the measurement capability of the system is presented.

AB - The TFTR (Tokamak Fusion Test Reactor) multichannel X-mode reflectometer system is intended to measure electron density fluctuations at fixed points in the plasma by resolving phase fluctuations in waves reflected from the plasma. The system comprises low-power, high-dynamic-range millimeter-band transceivers two pairs of cylindrical corrugated low-loss overmoded waveguides, remotely controlled beamsteering mirrors, and high-speed data acquisition and control electronics. At present a single 140-GHz channel is operational. Three additional channels, one of which can be frequency stepped, are planned to be operational for the next TFTR run period. These new channels should allow correlation measurements between fluctuations on different density layers. The authors describe the reflectometer instrumentation and design concerns relating to the TFTR environment and discuss the integration of additional channels into the existing single channel system. An example of the measurement capability of the system is presented.

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DO - 10.1109/FUSION.1991.218658

M3 - Conference contribution

AN - SCOPUS:85067663509

T3 - Proceedings - Symposium on Fusion Engineering

SP - 1192

EP - 1194

BT - Proceedings - 14th IEEE/NPSS Symposium Fusion Engineering, FUSION 1991

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 14th IEEE/NPSS Symposium Fusion Engineering, FUSION 1991

Y2 - 30 September 1991 through 3 October 1991

ER -

TFTR microwave reflectometer diagnostic

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