An intermediate power amplifier upgrade for 40 to 80 Mhz for the alcator C-mod ICRF transmitters
ICRF operations with Alcator C-Mod consists of 4 transmitters, of which two are tunable within the 40 MHz to 80 MHz band. These transmitters were comprised of 3 stages all of which employed vacuum tube amplifiers. As a part of the general plan to upgrade the two tunable transmitters, a project was i...
| Main Authors: | , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Institute of Electrical and Electronics Engineers
2010
|
| Online Access: | http://hdl.handle.net/1721.1/54700 |
| _version_ | 1811079372077006848 |
|---|---|
| author | Pfeiffer, Andrew T. Murray, Richard A. Lin, Yijun Wukitch, Stephen James Binus, Alan Gwinn, D. |
| author2 | Massachusetts Institute of Technology. Plasma Science and Fusion Center |
| author_facet | Massachusetts Institute of Technology. Plasma Science and Fusion Center Pfeiffer, Andrew T. Murray, Richard A. Lin, Yijun Wukitch, Stephen James Binus, Alan Gwinn, D. |
| author_sort | Pfeiffer, Andrew T. |
| collection | MIT |
| description | ICRF operations with Alcator C-Mod consists of 4 transmitters, of which two are tunable within the 40 MHz to 80 MHz band. These transmitters were comprised of 3 stages all of which employed vacuum tube amplifiers. As a part of the general plan to upgrade the two tunable transmitters, a project was implemented to replace the first stage, the intermediate power amplifier, with a 10 kilowatt solid state broadband amplifier. There were two primary benefits from the upgrade. The tuning of the transmitters was considerably simplified and better performance was obtained under a variety of operational conditions by having a conservative power margin. The improvements obtained are an important first step toward advancing the overall radio frequency performance of the transmitters and minimizing the time intensive task of changing the frequency of operation. |
| first_indexed | 2024-09-23T11:13:59Z |
| format | Article |
| id | mit-1721.1/54700 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:13:59Z |
| publishDate | 2010 |
| publisher | Institute of Electrical and Electronics Engineers |
| record_format | dspace |
| spelling | mit-1721.1/547002022-09-27T18:01:36Z An intermediate power amplifier upgrade for 40 to 80 Mhz for the alcator C-mod ICRF transmitters Pfeiffer, Andrew T. Murray, Richard A. Lin, Yijun Wukitch, Stephen James Binus, Alan Gwinn, D. Massachusetts Institute of Technology. Plasma Science and Fusion Center Binus, Alan Pfeiffer, Andrew T. Murray, Richard A. Lin, Yijun Wukitch, Stephen James Binus, Alan ICRF operations with Alcator C-Mod consists of 4 transmitters, of which two are tunable within the 40 MHz to 80 MHz band. These transmitters were comprised of 3 stages all of which employed vacuum tube amplifiers. As a part of the general plan to upgrade the two tunable transmitters, a project was implemented to replace the first stage, the intermediate power amplifier, with a 10 kilowatt solid state broadband amplifier. There were two primary benefits from the upgrade. The tuning of the transmitters was considerably simplified and better performance was obtained under a variety of operational conditions by having a conservative power margin. The improvements obtained are an important first step toward advancing the overall radio frequency performance of the transmitters and minimizing the time intensive task of changing the frequency of operation. United States. Dept. of Energy (Cooperative Grant No. DE-FC02-99ER54512-C-Mod) 2010-05-04T18:13:58Z 2010-05-04T18:13:58Z 2009-08 Article http://purl.org/eprint/type/ConferencePoster 978-1-4244-2635-5 http://hdl.handle.net/1721.1/54700 Binus, A. et al. “An intermediate power amplifier upgrade for 40 to 80 Mhz for the alcator C-Mod ICRF transmitters.” Fusion Engineering, 2009. SOFE 2009. 23rd IEEE/NPSS Symposium on. 2009. 1-4. © 2009 IEEE en_US http://dx.doi.org/10.1109/FUSION.2009.5226410 23rd IEEE/NPSS Symposium on Fusion Engineering, 2009. SOFE 2009. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Electrical and Electronics Engineers IEEE |
| spellingShingle | Pfeiffer, Andrew T. Murray, Richard A. Lin, Yijun Wukitch, Stephen James Binus, Alan Gwinn, D. An intermediate power amplifier upgrade for 40 to 80 Mhz for the alcator C-mod ICRF transmitters |
| title | An intermediate power amplifier upgrade for 40 to 80 Mhz for the alcator C-mod ICRF transmitters |
| title_full | An intermediate power amplifier upgrade for 40 to 80 Mhz for the alcator C-mod ICRF transmitters |
| title_fullStr | An intermediate power amplifier upgrade for 40 to 80 Mhz for the alcator C-mod ICRF transmitters |
| title_full_unstemmed | An intermediate power amplifier upgrade for 40 to 80 Mhz for the alcator C-mod ICRF transmitters |
| title_short | An intermediate power amplifier upgrade for 40 to 80 Mhz for the alcator C-mod ICRF transmitters |
| title_sort | intermediate power amplifier upgrade for 40 to 80 mhz for the alcator c mod icrf transmitters |
| url | http://hdl.handle.net/1721.1/54700 |
| work_keys_str_mv | AT pfeifferandrewt anintermediatepoweramplifierupgradefor40to80mhzforthealcatorcmodicrftransmitters AT murrayricharda anintermediatepoweramplifierupgradefor40to80mhzforthealcatorcmodicrftransmitters AT linyijun anintermediatepoweramplifierupgradefor40to80mhzforthealcatorcmodicrftransmitters AT wukitchstephenjames anintermediatepoweramplifierupgradefor40to80mhzforthealcatorcmodicrftransmitters AT binusalan anintermediatepoweramplifierupgradefor40to80mhzforthealcatorcmodicrftransmitters AT gwinnd anintermediatepoweramplifierupgradefor40to80mhzforthealcatorcmodicrftransmitters AT pfeifferandrewt intermediatepoweramplifierupgradefor40to80mhzforthealcatorcmodicrftransmitters AT murrayricharda intermediatepoweramplifierupgradefor40to80mhzforthealcatorcmodicrftransmitters AT linyijun intermediatepoweramplifierupgradefor40to80mhzforthealcatorcmodicrftransmitters AT wukitchstephenjames intermediatepoweramplifierupgradefor40to80mhzforthealcatorcmodicrftransmitters AT binusalan intermediatepoweramplifierupgradefor40to80mhzforthealcatorcmodicrftransmitters AT gwinnd intermediatepoweramplifierupgradefor40to80mhzforthealcatorcmodicrftransmitters |