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- 9b47e4c5-0a04-4adc-8e83-975cb2cbc4a6 definition "The Thermal Ion Dynamics Experiment (TIDE) and Plasma Source Instrument (PSI) have been developed in response to the requirements of the ISTP Program for three-dimensional plasma composition measurements capable of tracking the outflow of ionospheric plasma throughout the magnetosphere. This plasma is in part lost to the downstream solar wind and in part recirculated within the magnetosphere, participating in the formation of the diamagnetic hot plasma sheet and ring current plasma populations. Significant obstacles which have previously made this task impossible include the low density and energy of the outflowing ionospheric plasma plume and the positive spacecraft floating potentials which exclude the low-energy plasma from detection on ordinary spacecraft. Based on a unique combination of focusing electrostatic ion optics and time of 3 flight detection and mass analysis, TIDE provides the unprecedented sensitivity (seven channels at 0.1 cm2 sr each) and resolution required for this purpose. PSI will produce a low energy plasma locally at the POLAR spacecraft which will provide the ion current required to balance the photoelectron current, along with a low temperature electron population, thus regulating the spacecraft potential at a few tenths of a volt positive relative to the space plasma. For more information, see: http://satyr.msfc.nasa.gov/TIDE/ and http://pwg.gsfc.nasa.gov/polar/polar_inst.shtml Group: Instrument_Details Entry_ID: TIDE Group: Instrument_Identification Instrument_Category: Solar/Space Observing Instruments Instrument_Class: Particle Detectors Short_Name: TIDE Long_Name: Thermal Ion Dynamics Experiment End_Group Group: Associated_Platforms Short_Name: POLAR End_Group Online_Resource: http://xd12srv1.nsstc.nasa.gov/ssl/PAD/sppb/index_Tide.html Online_Resource: http://tide.gsfc.nasa.gov/ Sample_Image: http://xd12srv1.nsstc.nasa.gov/ssl/PAD/sppb/TIDE/images/plate_1_lrg.gif Group: Instrument_Logistics Instrument_Start_Date: 1996-02-24 Instrument_Owner: SW Research Labs Instrument_Owner: Los Alamos National Lab Instrument_Owner: Centre d'etude des Environnements Terrestre et Planetaires, France Instrument_Owner: Hughes Research Labs End_Group End_Group" @default.
- 9b47e4c5-0a04-4adc-8e83-975cb2cbc4a6 id "1655179" @default.
- 9b47e4c5-0a04-4adc-8e83-975cb2cbc4a6 path_id 02c354fd-8e2d-4825-b786-aa4b0782d1d6 @default.
- 9b47e4c5-0a04-4adc-8e83-975cb2cbc4a6 path_id 5f5e4f2c-61b7-4694-8680-3fc5799f6171 @default.
- 9b47e4c5-0a04-4adc-8e83-975cb2cbc4a6 path_id b2140059-b3ca-415c-b0a7-3e142783ffe8 @default.
- 9b47e4c5-0a04-4adc-8e83-975cb2cbc4a6 path_label "Instruments" @default.
- 9b47e4c5-0a04-4adc-8e83-975cb2cbc4a6 path_label "Particle Detectors" @default.
- 9b47e4c5-0a04-4adc-8e83-975cb2cbc4a6 path_label "Solar/Space Observing Instruments" @default.
- 9b47e4c5-0a04-4adc-8e83-975cb2cbc4a6 prefLabel "TIDE" @default.
- 9b47e4c5-0a04-4adc-8e83-975cb2cbc4a6 reference "" @default.
- 9b47e4c5-0a04-4adc-8e83-975cb2cbc4a6 tag "Instruments" @default.
%20and%20Plasma%20Source%20Instrument%20(PSI)%0Ahave%20been%20developed%20in%20response%20to%20the%20requirements%20of%20the%20ISTP%20Program%20for%0Athree-dimensional%20plasma%20composition%20measurements%20capable%20of%20tracking%20the%0Aoutflow%20of%20ionospheric%20plasma%20throughout%20the%20magnetosphere.%20This%20plasma%20is%20in%0Apart%20lost%20to%20the%20downstream%20solar%20wind%20and%20in%20part%20recirculated%20within%20the%0Amagnetosphere%2C%20participating%20in%20the%20formation%20of%20the%20diamagnetic%20hot%20plasma%0Asheet%20and%20ring%20current%20plasma%20populations.%20Significant%20obstacles%20which%20have%0Apreviously%20made%20this%20task%20impossible%20include%20the%20low%20density%20and%20energy%20of%20the%0Aoutflowing%20ionospheric%20plasma%20plume%20and%20the%20positive%20spacecraft%20floating%0Apotentials%20which%20exclude%20the%20low-energy%20plasma%20from%20detection%20on%20ordinary%0Aspacecraft.%20Based%20on%20a%20unique%20combination%20of%20focusing%20electrostatic%20ion%20optics%0Aand%20time%20of%203%20flight%20detection%20and%20mass%20analysis%2C%20TIDE%20provides%20the%0Aunprecedented%20sensitivity%20(seven%20channels%20at%200.1%20cm2%20sr%20each)%20and%20resolution%0Arequired%20for%20this%20purpose.%20PSI%20will%20produce%20a%20low%20energy%20plasma%20locally%20at%20the%0APOLAR%20spacecraft%20which%20will%20provide%20the%20ion%20current%20required%20to%20balance%20the%0Aphotoelectron%20current%2C%20along%20with%20a%20low%20temperature%20electron%20population%2C%20thus%0Aregulating%20the%20spacecraft%20potential%20at%20a%20few%20tenths%20of%20a%20volt%20positive%20relative%0Ato%20the%20space%20plasma.%0AFor%20more%20information%2C%20see%3A%0Ahttp%3A%2F%2Fsatyr.msfc.nasa.gov%2FTIDE%2F%0Aand%0Ahttp%3A%2F%2Fpwg.gsfc.nasa.gov%2Fpolar%2Fpolar_inst.shtml%0A%0A%0AGroup%3A%20Instrument_Details%0A%20%20%20Entry_ID%3A%20TIDE%0A%20%20%20Group%3A%20Instrument_Identification%0A%20%20%20%20%20%20Instrument_Category%3A%20Solar%2FSpace%20Observing%20Instruments%0A%20%20%20%20%20%20Instrument_Class%3A%20Particle%20Detectors%0A%20%20%20%20%20%20Short_Name%3A%20TIDE%0A%20%20%20%20%20%20Long_Name%3A%20Thermal%20Ion%20Dynamics%20Experiment%0A%20%20%20End_Group%0A%20%20%20Group%3A%20Associated_Platforms%0A%20%20%20%20%20%20Short_Name%3A%20POLAR%0A%20%20%20End_Group%0A%20%20%20Online_Resource%3A%20http%3A%2F%2Fxd12srv1.nsstc.nasa.gov%2Fssl%2FPAD%2Fsppb%2Findex_Tide.html%0A%20%20%20Online_Resource%3A%20http%3A%2F%2Ftide.gsfc.nasa.gov%2F%0A%20%20%20Sample_Image%3A%20http%3A%2F%2Fxd12srv1.nsstc.nasa.gov%2Fssl%2FPAD%2Fsppb%2FTIDE%2Fimages%2Fplate_1_lrg.gif%0A%20%20%20Group%3A%20Instrument_Logistics%0A%20%20%20%20%20%20Instrument_Start_Date%3A%201996-02-24%0A%20%20%20%20%20%20Instrument_Owner%3A%20SW%20Research%20Labs%0A%20%20%20%20%20%20Instrument_Owner%3A%20Los%20Alamos%20National%20Lab%0A%20%20%20%20%20%20Instrument_Owner%3A%20Centre%20d'etude%20des%20Environnements%20Terrestre%20et%20Planetaires%2C%20France%0A%20%20%20%20%20%20Instrument_Owner%3A%20Hughes%20Research%20Labs%0A%20%20%20End_Group%0AEnd_Group%22){kind=link}