The functionality of the RD2014 radiation sensor is based on an array of customized PIN diodes. The integrated pulse discriminator with a temperature compensated threshold level provides true TTL signal output. The RD2014 provides high sensitivity in detecting nuclear beta radiation (electrons), gamma radiation (photons) and X-rays. The RD2014 detector sensitivity is 5.8 cpm/µSv/h.
The RD3024 solid state radiation sensor, high sensitivity in combination with high immunity to RF fields make it a good choice for designs of new, state-of-the-art battery powered measuring instruments using WiFi, GSM and Bluetooth communication. Detects beta and gamma radiation and X-rays. The RD3024 detector sensitivity is 5.9 cpm/µSv/h.
Three Basic Types of Radiation
Nuclear radiation come in three basic types, two are particles of matter, one is electromagnetic. Often more than one type will come from a particular radioactive material. Some mixed sources like Uranium ore will have all types.
ALPHA PARTICLES are tiny clusters of matter consisting of two protons and two neutrons. Since they come from inside a nucleus of an atom during nuclear decay, they are technically called nuclear radiation. Alpha particles are the heavyweights of nuclear radiation, being the most massive type of all. Their size, weight, and electrical charge keep them from penetrating very much other matter, even air. There are only a few specially designed detectors that can pick up alpha particles.
BETA PARTICLES are also tiny bits of matter that come out of decaying nuclei. In this case, they are exactly like electrons in weight and charge. Their mass units of weight are so small as to be ignored. Beta particles can penetrate much deeper than alpha particles, to a distance of about 10 or 12 feet in air, and up to half an inch in wood.
Neither alpha radiation nor beta radiation is much of a concern to humans when they are outside the body. Great care should be taken so as not to ingest or inhale any radioactive material though, as they can cause real damage inside the body.
GAMMA RAYS and X-RAYS are identical electromagnetic radiations, consisting of photons. Just like radio waves and light waves but of much higher frequency. Gamma rays can have energy levels from just a few eV to many MeV. They can be extremely penetrating, being able in some cases to go through many feet of concrete! Gamma rays are called Penetrating Ionizing Radiation. In space, they have no range limitations; gamma rays arrive at earth from other solar systems, even other Galaxies.