Pancake Detector [ Type No.: GM138 ]
This is a Pan Cake Detector sensitive to Beta radiation and with window closed can be used for gamma doserate measurements also. Has large surface window area of 16 sq.cm.
|General||Gas filling : Ne + Halogen.
Cathode Material: 446 SS.
|Maximum Length: 3.0 Inches / 76.1 mm.
Effective Depth :0.5 Inches / 12.7 mm.
|Maximum Dia: 2.11 Inches / 53.6 mm.
Effective Dia: 0.61 Inches / 44.5 mm.
|Connector : Grid Cap.
Operating temperature range : -40 to + 750C.
|Window||Areal Density : 1.5 – 2.0.||Effective Dia : 1.75 Inches / 44.5 mm||Material: Mica.||–|
|Gamma Sensitivity||60 CPS / mR/hr ( Co60).||–||–||–|
|Operating Characteristics||Max. Starting Voltage : 425V + 25V. Recommended Operating voltage : 500V ± 25V.||Operating voltage range : 475 – 675V.||Max. Plateau Slope (%100Volts) : 10.||Minimum anode resistor (m.ohms) : 3.3.|
Application:Beta-gamma Contamination monitoring and also for gamma doserate measurements.This Detector is a part of Beta/gamma pan cake contamination probe which is used with Contamination Monitor, portable as well as with Bench Model. This detector is of St.Gobain / Centronic / LND or it’s equivalent make.