NIM Station for Ambient Gammadoserate

Description

- BNC Portanim Power-supply for NIM modules. The crate can take 4 units
- Ortec 449-2 log-lin-Ratemeter, sends 10-Minute Countrate integral as DC Voltage to Hobo logger
- Power Supply for GM-Tube, Pulses go to Ratemeter
- Hobo Datalogger, receives data from ratemeter and can send data to smartphone
- LND GM-Tube 7807
energy compensated and capsuled , 12 m of Cable
the Combination measures ambient gammadoserate with a big compensated gm-tube and sends the moving (gliding) average values (10min integration time) in 5-minute pace to the Hobo-datalogger.
of course all parameters can be individually set by the customer.
eg: the inherent bg of the gm tube is subtracted with the ratemeters precision dial at the bottom-center.
alarms can be set all over the range
one image shows the logged data of november-december last year. you see that heavy snowfall at
26-27 november
caused washout (snow-out...) of radon progeny: the airborne gamma-activity translated into the logged voltage went up to 1.74Volt, that translates to 1.74 x 62.5 nSv/h per Volt, equal 108,75 nSv/h or
0.108𝞵Sv/h
. (1 net-cps equals 62nanoSievert per hour. 1cps is represented at the back of the ratemeter by 1Volt. full range of the meter, 10cps, gives 10Volt at this BNC-socket)
please contact me to find out freight cost to your location!