Geiger counter rm 2021 shipment immediately radio meter dosimeter rm 2021 radioactivity detector rm2021 geigercounters gama beta

◆ β-rays, X rays and gamma irradiation (gamma) is the latest microprocessor integrated portable radiation measuring instruments high precision and sensitivity that can be measured.
◆ radiation sensing and digital display
◆ dose rate and integrated dose at the same time display, data records stored with a dose rate and dose integrated alarm alarm range is freely configurable.
◆ Geiger counter lineup among the finest products.
Minimum sensitivity 0.01 ~ 1000uSv/h
To detect sounds warning alarms (2.5 uSv / h) If you do not set the measurement value or to health-threatening radiation (equivalent dose integrated 20 uSv) automatically warning instrument.

Principle of operation:
Geiger Counter detects beta particles and gamma rays and X, called ionizing radiation, with great sensitivity. It has Beta particles, and ionization created by X and Gamma radiation, indicating the 'amount of energy, transmitted to the material per unit time.
The unit displayed is the Micro Rem per hour (microRem / h) or micro Sievert per hour (microSv / h). It corresponds to an equivalent dose received by the human body for an hour, or 'dose rate'.
Reminders on the radio-activity: :
The matter is made of atoms. Each atom has a nucleus composed of protons and neutrons. The core is surrounded by electrons orbiting like satellites. Radioactive materials spontaneously emit radiation Gamma or X and / or beta particles or sometimes alpha.
Beta particles are electrons. Because of their charge, they react strongly with matter. They travel a few centimeters to several meters in the air. Aluminum foil can stop them.
Alpha particles are helium nuclei, or 2 protons and 2 neutrons. They travel a few centimeters in air, a sheet of paper can stop them.
Gamma rays are electromagnetic radiation formed during physical phenomena occurring within the nucleus of the atom. They are capable of producing ions directly or indirectly (atoms or molecules of non-zero electric charge) when they pass through matter. They can travel tens of meters of the air age. Their penetration may be very large, very thick lead and concrete and strongly attenuates.
X-rays Gamma rays are similar to but trained in physical phenomena occurring within the electron cloud of the atom. They are used in medicine and rarely found in nature.