Large Area Neutron Detector
Encyclopedia
The Large Area Neutron Detector, also known as LAND, is the name of a detector of neutron
s installed at GSI
(Institute for Heavy Ion Research) situated in Arheilgen close to the city of Darmstadt
, Germany
.
The detector is built of 10 planes with 20 paddles each. The paddles have a size of 10x10x200cm and are composed of a converter (iron) and plastic scintillator
material. Within the paddle the 5mm thick converters serve as a dense target for neutrons leading to processes that eject charged particles through the process of hadronic showers. The interspersed 5mm plastic scintillator stripes produce light for the passing charged particles. The stripes of one paddle are viewed at both ends by photomultiplier
s.
The detector system was built in 1990.
A research group at GSI is named after this detector. They aim at studying the nuclear structure of radioactive nuclei.
Neutron
The neutron is a subatomic hadron particle which has the symbol or , no net electric charge and a mass slightly larger than that of a proton. With the exception of hydrogen, nuclei of atoms consist of protons and neutrons, which are therefore collectively referred to as nucleons. The number of...
s installed at GSI
Gesellschaft für Schwerionenforschung
The GSI Helmholtz Centre for Heavy Ion Research GmbH in the Wixhausen suburb of Darmstadt, Germany is a federally and state co-funded heavy ion research center. The current director of GSI is Horst Stöcker who succeeded Walter F...
(Institute for Heavy Ion Research) situated in Arheilgen close to the city of Darmstadt
Darmstadt
Darmstadt is a city in the Bundesland of Hesse in Germany, located in the southern part of the Rhine Main Area.The sandy soils in the Darmstadt area, ill-suited for agriculture in times before industrial fertilisation, prevented any larger settlement from developing, until the city became the seat...
, Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...
.
The detector is built of 10 planes with 20 paddles each. The paddles have a size of 10x10x200cm and are composed of a converter (iron) and plastic scintillator
Scintillator
A scintillator is a special material, which exhibits scintillation—the property of luminescence when excited by ionizing radiation. Luminescent materials, when struck by an incoming particle, absorb its energy and scintillate, i.e., reemit the absorbed energy in the form of light...
material. Within the paddle the 5mm thick converters serve as a dense target for neutrons leading to processes that eject charged particles through the process of hadronic showers. The interspersed 5mm plastic scintillator stripes produce light for the passing charged particles. The stripes of one paddle are viewed at both ends by photomultiplier
Photomultiplier
Photomultiplier tubes , members of the class of vacuum tubes, and more specifically phototubes, are extremely sensitive detectors of light in the ultraviolet, visible, and near-infrared ranges of the electromagnetic spectrum...
s.
The detector system was built in 1990.
A research group at GSI is named after this detector. They aim at studying the nuclear structure of radioactive nuclei.
External links
- T. Blaich et al., Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, A314(1992), p. 136-154, Elsevier NORTH-HOLLAND, ISSN 0168-9002
- GSI