{Effective distance from sample}{Distance as seen by radiation from sample. This number should be negative to signify that it is upstream of the sample.}? {Name of source}? "Spallation Neutron Source"|"Pulsed Reactor Neutron Source"|"Reactor Neutron Source"|"Synchrotron X-ray Source"|"Pulsed Muon Source"|"Rotating Anode X-ray"|Fixed Tube X-ray"? neutron|x-ray|muon|electron? {Source power}? {Accelerator current}? {Accelerator voltage}? {Frequency of pulsed source}? {Period of pulsed source}? {Pulsed source target material} {"Ta"|"W"|"depleted_U"|"enriched_U"|"Hg"|"Pb"|"C"}? {any source/facility related messages/events that occurred during the experiment}? {width of source pulse}? {source pulse shape}? {synchrotron operating mode}{"Single Bunch"|"Multi Bunch"}? {Is the synchrotron operating in top_up mode}? {"Engineering" location of source}?