User manual

R
Pulse Rate Measuring
8
In the pulse rate measuring mode, the pulses registered by the counting tube are continuously
measured and converted into a pulse rate. The unit of this pulse rate is cps (counts per second).
Information: The rate of ionization per second, which is logged in the counter tube, will be calcula-
ted.ThisisnotidenticalwiththeactivityoftheisotopewhichisdenedinBecquerel.Thenotation
will be changed into cps (counts per second).
Indicating the Pulse Rate
Press the button to switch to the pulse rate measu-
ringmode.Thesymbolwillashforthedurationof
measuring. After measuring, the symbol is steady
again.
Pulse rate measuring gives the average number of pulses
per second. Since radiation intensity may strongly
uctuateonashort-termbasis,thisindicationofaverage
rate will, of course, be more exact the Ionger the measu-
ring is done.
GAMMA-SCOUT
®
providesyouwitharstresultwithina
few seconds. Then it automatically prolongs the measu-
ring time to 4096 seconds in order to produce the most
exact average value as possible.
Example:
1024pulsesafter4096seconds=0.25pulses/second
After pushing the
button, the measuring intervals start
again after 2 seconds.
Note: Pressing this button displays the number of
measured impulses (ionized molecules) per second.
Of course, this does not display the activity of the source
(Bequerel). This button will be corrected (changed into
cps - counts per second) as soon as possible.