Arcimboldo, Summer

Museums Quarter, Vienna


November 10 -- submission deadline
November 20 -- online database accessible
December 5 -- Workshop opens
December 9 -- Workshop adjourns

Organizing Committee

H.-K. Chung (IAEA, Austria)
C. Bowen (CEA, France)
R.W. Lee (LCLS, USA)
Yu. Ralchenko (NIST, USA)


Call for Submissions
Kr paper
Time-integrated spectra: 1 | 2 | 3
Time-resolved spectra: 0.63 ns | 1.96 ns | 2.83 ns

Hotel map

K+K Maria Theresia Hotel (red marker)

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The 7th NLTE Code Comparison Workshop
December 5-9 2011, Vienna, Austria

nist       cea       iaea


Previous Meetings

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,
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


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 | --- Access the database ---

Element Te (eV) Ne (cm-3) Spectral ranges Justification Additional info Case coordinator
(to be confirmed)
Ne 10, 30 1014, 1018, 1020 E=1-250 eV, dE=0.05 eV Convergence with n 6 cases:
nmax=g.s., 3, 4, 8, 12, ∞
C. Bowen
Ar 10, 20, 40,
60, 80, 100
1010, 1020   EA/DR analysis F- through Mg-like ions only H.-K. Chung
Ar 50 1014, 1018, 1020 Time-integrated:
λ=4.17-4.20 Å, dλ=0.0001 Å
λ=40-50 Å, dλ=0.01 Å
λ=400-800 Å, dλ=0.1 Å
System relaxation after
XFEL photoexcitation
Time-dependent problem;
at t=0 all population in 1s2s22p63p of Ne-like ion

t(0)=0, t(1)=10-16 s, t(i)=t(i-1)*δt for i=2..200;
δt=1.15 for 1014, δt=1.10 for 1018, δt=1.08 for 1020
Yu. Ralchenko
Kr best fit best fit λ=5.5-8.0 Å, dλ=0.001 Å Analysis of experimental spectra and
discussion of CR modeling strategies
See the paper, Figs. 4(b), 7, 8 S.B. Hansen
W 2500, 3900, 5000,
9000, 12000
1014 3900 eV: λ=4-8 Å, dλ=0.001 Å
5000 eV: λ=25-33 Å, dλ=0.004 Å
MCF problem + EA/DR analysis   C.J. Fontes

Student support

A limited number of grants will be provided by the IAEA to partially cover travel expenses for students. To apply please submit the following information to Yuri Ralchenko (email name, affiliation/institution, country, phone, fax, email. As a reminder, the student must be a member of the team submitting at least one case.


Hotel news

The Conference will be held at the K+K Maria Theresia Hotel where a block of rooms at discount rates are reserved. The hotel is located at:

Kirchberggasse 6
1070 Vienna
Tel : +43-1-521-2300
Fax: +43-1-521-2370

The negotiated, and very good for the pre-Christmas weeks, rates are 122 Euro weekdays (Dec 4-9) and 142 Euro weekends (Dec 2-3 and Dec 10-11). For reservations, please call the hotel directly and use the special corporation rate NLTE7. The rooms are to be reserved not later than November 15 2011.

The nearest U-bahn (metro) station is Volkstheater, lines U2 and U3.

Hotel update
In addition to calling the hotel, you can reserve your room by sending email to, subject: Reservation-Manager: Ms. Susanne Eder. In the email please mention the special corporate rate NLTE7.

Computer Equipment

We will have an Internet connection at the hotel and a dedicated wireless network for the Workshop purposes.

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