Vashishat GM Counter is designed for measuring radioactivity using Geiger-Muller tubes or solid-state radiation detectors, and also functions as a versatile millisecond digital timing device with both manual control and electronic display. The bright 7.6?mm high, 6-digit LED display makes it ideal for individual use or integration into a physics lab experiment.
For radioactivity measurements, it includes a built-in pre-amplifier for GM detectors and an adjustable 300–1000V E.H.T. supply for GM tubes. In timing mode, the display shows seconds from 0 up to 99.9s, with front-panel adjustments, and time can be programmed in minutes or hours using the programmable setting switch.
Experimental Objective
To determine the Plateau Curve of Geiger-Müller counter
To determine the plateau and optimal operating voltage of a Geiger-Müller counter
Features
G.M. Counter with built-in EHT power supply 300–1000?V.
Operating voltage 220?V, 50?Hz; power consumption approx. 8?W.
STOP, START, RESET switches with last reading memory facility.
6-digit counting capacity system.
Preset time with 3-digit programmable timer and membrane key settings.
3½-digit digital voltmeter for GM tube voltage.
GM tube with end window mounted on acrylic stand.
Supplied with aluminum absorbers.
One radioactive source (Beta or Gamma) in lead container and wooden box.
GM Counter dimensions: 365 × 180 × 145?mm.
Supplied with instruction manual.
Total instrument weight approx. 5.5?kg.
