Ad
related to: germanium crystal detectors
Search results
Results From The WOW.Com Content Network
Low efficiency was the result, and germanium detector efficiency is still often quoted in relative terms to a "standard" 3″ x 3″ NaI(Tl) scintillation detector. Crystal growth techniques have since improved, allowing detectors to be manufactured that are as large as or larger than commonly available NaI crystals, although such detectors ...
The crystal detector was the most successful of many detector devices invented during this era. The crystal detector evolved from an earlier device, [40] the first primitive radio wave detector, called a coherer, developed in 1890 by Édouard Branly and used in the first radio receivers in 1894–96 by Marconi and Oliver Lodge.
A crystal detector includes a crystal, usually a thin wire or metal probe that contacts the crystal, and the stand or enclosure that holds those components in place. The most common crystal used is a small piece of galena ; pyrite was also often used, as it was a more easily adjusted and stable mineral, and quite sufficient for urban signal ...
A clover detector is a gamma-ray detector that consists of 4 coaxial N-type high purity germanium (Ge) crystals each machined to shape and mounted in a common cryostat to form a structure resembling a four-leaf clover. [1] The clover is the first composite Ge detector.
A tarnish-proof silver alloy trademarked Argentium contains 1.2% germanium. [32] Semiconductor detectors made of single crystal high-purity germanium can precisely identify radiation sources—for example in airport security. [89] Germanium is useful for monochromators for beamlines used in single crystal neutron scattering and synchrotron X ...
The CDMS detectors measure the ionization and phonons produced by every particle interaction in their germanium and silicon crystal substrates. [1] These two measurements determine the energy deposited in the crystal in each interaction, but also give information about what kind of particle caused the event.
Overhead view of the Miniball set up. The Miniball detector array consists of 24 high-purity germanium crystals which have a tapered front end. [8] In contrast to other detectors developed at a similar time (e.g. EUROBALL) they have a six-fold segmentation, with each of the segments coupled to a separate preamplifier. [13]
The parameters of the detectors are: [1] Maximum cylinder size: 90.0 mm length, 40.0 mm radius. Coaxial hole size: 10.0 mm diameter, extension to 13.0 mm from the front face. Passivation layers: 1.0 mm at the back of the detector, 0.6 mm around the coaxial hole. Encapsulation: 0.8 mm thickness with a 4.0 mm crystal-can distance