No. 176, Time Profiles of Solar Flare Densities, by Ryan Milligan and Michael Kennedy. The EUV spectra from EVE include nice density diagnostics. See

http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/Time_Profiles_of_Solar_F...

Older Nuggets are available at http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets (the current series, 2008-present), and at http://sprg.ssl.berkeley.edu/~tohban/nuggets/ (the original series, 2005-2008).

We publish these at roughly two-week intervals and welcome contributions, which should be related, at least loosely, to RHESSI science.