Background radiation is a measure of the level of ionizing radiation present in the environment at a particular location which is not due to deliberate...

Cosmic background radiation is electromagnetic radiation that fills all space. The origin of this radiation depends on the region of the spectrum that...

The cosmic microwave background (CMB or CMBR) is microwave radiation that fills all space in the observable universe. It is a remnant that provides an...

Ionizing radiation (US, ionising radiation in the UK), including nuclear radiation, consists of subatomic particles or electromagnetic waves that have...

testing, background radiation has decreased to very near natural levels, making special low-background steel no longer necessary for most radiation-sensitive...

1989 to 1993. Its goals were to investigate the cosmic microwave background radiation (CMB or CMBR) of the universe and provide measurements that would...

The discovery of cosmic microwave background radiation constitutes a major development in modern physical cosmology. In 1964, US physicist Arno Allan Penzias...

particle radiation consists of particles of non-zero rest energy, such as alpha radiation (α), beta radiation (β), proton radiation and neutron radiation acoustic...

Internet background noise (IBN, also known as Internet background radiation, by analogy with natural background radiation) consists of data packets on...

extinction rate Background independence, a condition in theoretical physics Background noise Background radiation, the natural radiation that is always...