MSL/RAD Doserate Plotter
RAD measures dose rate in two detectors: the silicon detector B and the plastic scintillator E.
Detector E has a composition similar to that of human tissue and is also more sensitive to neutrons than silicon detectors. For a given incident flux, the dose rate in detector B is generally less than the dose rate in E because of the comparatively larger ionization potential of silicon.
The Dynamic Albedo of Neutron (DAN) experiment on the MSL rover is also currently making measurements of the Mars neutron environment. In active mode, DAN fires ~14 MeV neutrons into the regolith in order to generate lower energy (thermal and epithermal) albedo neutrons in the regolith that are diagnostic of Hydrogen. DAN's firing affects the measurement by RAD and causes pulses of enhancement in the dose rate. Those enhancements are clearly visible in the data and can optionally be removed.
The first possible start date is the 20-August-2012. Cause of copyrights, the latest end date you can choose is around 6 months (185 days) before the current date.