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Collaborative Research Plans for NSTX-U: Advancing CAE/GAE Physics and Education

This project focuses on the collaboration between UCLA and NSTX-U, led by PI Neal A. Crocker and Co-PI Prof. Troy Carter, to enhance understanding of core energy transport in plasmas through two main tasks. It aims to advance predictive capabilities of CAE/GAE and improve physics understanding by testing experimental hypotheses. The initiative encourages student participation and emphasizes educational components in research proposals, fostering collaboration across multiple universities and institutions for enhanced research outcomes.

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Collaborative Research Plans for NSTX-U: Advancing CAE/GAE Physics and Education

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  1. NSTX-U Supported by NSTX-U Collaboration Plans for UCLA PI: Neal A. Crocker Co-PI: Prof. Troy Carter Grad. Student (planned 2nd year onward) PPPL Research Contacts and Collaborators:E. Belova, N. Gorelenkov & W. Guttenfelder Coll of Wm & Mary Columbia U CompX General Atomics FIU INL Johns Hopkins U LANL LLNL Lodestar MIT Lehigh U Nova Photonics ORNL PPPL Princeton U Purdue U SNL Think Tank, Inc. UC Davis UC Irvine UCLA UCSD U Colorado U Illinois U Maryland U Rochester U Tennessee U Tulsa U Washington U Wisconsin X Science LLC Culham Sci Ctr York U Chubu U Fukui U Hiroshima U Hyogo U Kyoto U Kyushu U Kyushu Tokai U NIFS Niigata U U Tokyo JAEA Inst for Nucl Res, Kiev Ioffe Inst TRINITI Chonbuk Natl U NFRI KAIST POSTECH Seoul Natl U ASIPP CIEMAT FOM Inst DIFFER ENEA, Frascati CEA, Cadarache IPP, Jülich IPP, Garching ASCR, Czech Rep NSTX-U Collaborator Research Plan Meetings PPPL – LSB B318 April / May 2014

  2. UCLA supported FY2014 – 2017 to investigate CAE/GAE role in NSTX-U core energy transport • Two independent tasks in parallel over four years: • (1) Advance CAE/GAE predictive capability ⇒ experimental validation of HYM physics model + prioritization of HYM development • (2) Improve physics understanding of transport mechanism ⇒ experimental test of hypotheses: • (a) resonant orbit interaction & (b) energy channeling via coupling to KAWs • Supports 1/3 PI & UCLA Grad. for last 3 years • In FY2014, exploit NSTX data (good data set in 2010) • Comparison with HYM simulation • synthetic diagnostic development: BES, reflectometry, interferometry • Model energy transport w/mode measurements & compare w/experiment • In FY2014, prepare for NSTX-U experiments: • Model GAE/CAE NSTX-U activity – HYM + TRANSP Scenarios • Model energy transport

  3. Research needs and plans for FY2015 & beyond • Starting FY2015: investigate pitch angle dependence of CAEs/GAEs using new beams • Each year: investigate parameter dependence in new regimes as BT& IPincreases in stages • Improved MHz measurement capability desirable • core access • continued improvement of BES (e.g. signal-to-noise) • core reflectometry in high performance (i.e. high density) plasmas • internal magnetic fluctuations • Polarimetry • Local measurements? • other internal MHz fluctuation diagnostics? • Need NSTX-U support for Elena Belova & HYM development

  4. To enhance student participation in NSTX-U research, solicitations should encourage educational component • FES-related DOE solicitations (e.g. 2013 NSTX-U Collaboration Solicitation) do not explicitly encourage student research • In contrast, NSF-DOE Basic Plasma Science solicitations do explicitly encourage support for education – important criterion in proposal review • Increased education emphasis in solicitations would encourage U.S. student (and University) participation in NSTX-U program • Industry respondents would NOT be excluded since they can support student research in partnership with Universities • would be effective even if less emphatic than NSF – as long as proposal review gives weight to education support

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