Photon Calc     
   iPhone app calculates Gamma / X-Ray Photon Attenuation     
   iPhone app calculates Gamma / X-Ray Photon Attenuation     
Received in 56 days for a report emailed to feedback@hsk9.org and radiothailand@outlook.com (not sure which one did the trick)
A nice fold out QSL, along with a program schedule and history of the station.