Counts per minute dose reading. This modifies the tube characteristic so each count resulting from a particular radiation type is equivalent to a specific quantity of deposited dose. More can be found on radiation dose and dose rate at absorbed dose and equivalent dose. Disintegrations per minute (dpm) and disintegrations per second (dps) are measures of the activity of the source of radioactivity. The SI unit of radioactivity, the becquerel (Bq), is equivalent to one disintegration per second. This unit should not be confused with cps, which is the number of counts received by an instrument from the source. One dps (one dpm)
Si Prat are found in "Khamhaikan Khun Luang Ha Wat" and "Khamhaikan Chao Krung Kao", documents derived from an original Mon chronicle compiled from the testimony of Siamese captives following the fall of Ayutthaya in 1767. These documents focus on his banishment and death, but state that they happened during the reign of King Suriyenthrathibodi, several decades later than Narai. The detailed biography which gives explicit years for Si Prat's birth and death and places his lifetime during Narai's reign was written by Phraya Pariyattithammathada (Phae Talalak) and published as "Tamnan Si Prat" ("The Legend of Si Prat") in 1919. The work,