In experimental and applied particle physics , nuclear physics , and nuclear engineering , a particle detector , also known as a radiation detector , is a device used to detect, track, and/or identify ionizing particles , such as those produced by nuclear decay , cosmic radiation , or reactions in a particle accelerator . Detectors can measure the particle energy and other attributes such as momentum, spin, charge, particle type, in addition to merely registering the presence of the particle.
7-604: TASSO (Two Arm Spectrometer SOlenoid) was a particle detector at the PETRA particle accelerator at the German national laboratory DESY . The TASSO collaboration is best known for having discovered the gluon , the mediator of the strong interaction and carrier of the color charge . Four TASSO scientists, Paul Söding , Bjørn Wiik , Günter Wolf and Sau Lan Wu , were awarded the High Energy and Particle Physics Prize from
14-403: Is radiation measurement, they are called radiation detectors , but as photons are also (massless) particles, the term particle detector is still correct. Beyond their experimental implementations, theoretical models of particle detectors are also of great importance to theoretical physics. These models consider localized non-relativistic quantum systems coupled to a quantum field. They receive
21-620: The European Physical Society (EPS) in 1995. A special prize was also awarded to the TASSO collaboration, as well as the JADE , MARK J and PLUTO collaborations, in recognition of their combined work on the gluon as the "definite existence (of the gluon) emerged gradually from the results of the TASSO collaboration and the other experiments working at PETRA, JADE, MARK J and PLUTO". TASSO took data from 1978 to 1986 and discovered
28-571: The gluon in 1979. TASSO record on INSPIRE-HEP Particle detector Many of the detectors invented and used so far are ionization detectors (of which gaseous ionization detectors and semiconductor detectors are most typical) and scintillation detectors ; but other, completely different principles have also been applied, like Čerenkov light and transition radiation. Historical examples The following types of particle detector are widely used for radiation protection, and are commercially produced in large quantities for general use within
35-530: The model, giving rise to the Unruh-DeWitt detector model. Beyond their applications to theoretical physics, particle detector models are related to experimental fields such as quantum optics , where atoms can be used as detectors for the quantum electromagnetic field via the light-matter interaction. From a conceptual side, particle detectors also allow one to formally define the concept of particles without relying on asymptotic states, or representations of
42-417: The name of particle detectors because when the non-relativistic quantum system is measured in an excited state, one can claim to have detected a particle. The first instance of particle detector models in the literature dates from the 80's, where a particle in a box was introduced by W. G. Unruh in order to probe a quantum field around a black hole. Shortly after, Bryce DeWitt proposed a simplification of
49-573: The nuclear, medical, and environmental fields. Commonly used detectors for particle and nuclear physics Modern detectors in particle physics combine several of the above elements in layers much like an onion . Detectors designed for modern accelerators are huge, both in size and in cost. The term counter is often used instead of detector when the detector counts the particles but does not resolve its energy or ionization. Particle detectors can also usually track ionizing radiation (high energy photons or even visible light ). If their main purpose
#733266