San Diego


November 10 -- submission deadline
November 24 -- online database accessible (password protected)
November 28 -- Workshop opens
December 1 -- Workshop adjourns

Local Organizing Committee

S.B. Hansen (SNL, USA)
F. Beg (UCSD, USA)
H.A. Scott (LLNL, USA)
C.J. Fontes (LANL, USA)
Yu. Ralchenko (NIST, USA)


Call for Submissions: PDF | HTML5
Supplemental file: Old | New
PRL paper on Si photoionization: PDF
PRL paper on Al: HTML
Nature paper on Ne: HTML

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The 10th NLTE Code Comparison Workshop

November 28 - December 1 2017, San Diego, CA, USA

Supported by:

Advanced collisional-radiative (CR) models are extensively used in plasma spectroscopy to analyze plasma kinetics and spectra produced far from local thermodynamic equilibrium (LTE). Non-LTE atomic models also play a critical role in radiation-hydrodynamic simulations used to help design plasma experiments. It is therefore not surprising that verification and validation (V&V) of these complex CR models are of significant interest. Since experimental benchmarks for validation are extremely challenging, computational experiments and comparisons are one of the primary tools for V&V of CR codes. The NLTE Workshops aim at development of such tools and techniques.
Meeting Year Location Results
NLTE-1  1996  Gaithersburg, USA  Lee et al, JQSRT 58, 737 (1997)
NLTE-2  2001  Virtual Workshop  Bowen et al, JQSRT 81, 71 (2003)
NLTE-3  2003  Gaithersburg, USA  Bowen et al, JQSRT 99, 102 (2005)
NLTE-4  2005  Las Palmas de Gran Canaria, Spain  Rubiano et al, HEDP 3, 225 (2007)
NLTE-5  2007  Santa Fe, USA  Fontes et al, HEDP 5, 15 (2009)
NLTE-6  2009  Athens, Greece  
NLTE-7  2011  Vienna, Austria  Chung et al, HEDP, 9, 645 (2013)
NLTE-8  2013  Santa Fe, USA  
NLTE-9  2015  Paris, France  Piron et al, HEDP 23, 38 (2017)


Similar to the previous workshops, a necessary and sufficient condition for participation would be to submit at least one calculated case. A detailed description of the cases and format requirements can be found in the Call for Submissions.

It would also be very helpful if you inform the organizers on your intention to participate in this Workshop.

Summary of cases

Element Case ID No. of cases Te (eV) Ne (cm-3) Trad (eV), dilution factor Plasma radius (cm) Spectral ranges
Ne Ne 12 50, 100, 200, 500 1019, 1020, 1021 800-1400 eV, δε=0.3 eV (2001 points)
Ne NeTD 3 Te(t) for 3 cases in supplemental file Ne(t) = Z*(t)×Ni with Ni=1018 Erad: 800, 1050, 2000 800-1400 eV, δε=0.3 eV (2001 points)
Al Al 8 10, 30, 100, 300 2×1023, 5×1023
Al AlTD 2 Te(t) for 2 cases in supplemental file Ne(t) = Z*(t)×Ni with Ni=6×1022 Erad: 1580, 1650 1400-2400 eV, δε=0.5 eV (2001 points)
Si Si 12 30 1019, 3×1019 Trad: 63 (1.0), [48 (0.28) + 92 (0.081) + 170 (0.0067)] Corrected values:
0.1, 0.3, 1.2
1700-2500 eV, δε=0.25 eV (3201 points)
Cl Cl 9 400, 500, 600 1021, 1022, 1023 2600-3800 eV, δε=0.15 eV (8001 points)

Location, accommodation, etc.

The meeting will be held at the Seuss Room of the UCSD Faculty Club.

Parking will be available at the Ida and Cecil Green Faculty club (workshop location) for $7/day.

There are numerous hotels in the area, please see the map on the left. Here is the list of the closest recommended hotels:
We plan an informal reception on the night of Mon Nov 27 and a dinner on Thu Nov 30.

Computer Equipment

We will have an Internet connection at the meeting room and (probably) a dedicated wireless network for the Workshop purposes.

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