Making strides in quantum dot infrared photodetectors
Researchers at Northwestern University have made significant strides in the development of quantum dot infrared photodetectors -- technology that may provide new imaging techniques with applications in medical and biological imaging, environmental and chemical monitoring, night vision and infrared imaging from space. view more (2007-05-18)
... development of quantum dot infrared photodetectors -- technology that may provide new imaging techniques with applications in medical and biological imaging, environmental and chemical monitoring, night vision and infrared imaging from space.
Conventional infrared photon detector technology for imaging applications typically requires that the detector be cooled to very low temperatures -- approximately 77 degrees ... and power consumption to the ...
Particle physics fights terrorism
Scientists have developed a detector for plastic explosives. A consortium of scientists from Imperial College, other universities and industy have created the detector, which uses neutrons and is based on technologies developed for the Large Hadron Collider at CERN, Geneva. The technique overcomes problems with other devices that can confuse - for... view more... (1997-11-03)
Scientists have developed a detector for plastic explosives. A consortium of scientists from Imperial College, ... and industy have created the detector, which uses neutrons and is based on technologies developed for ... - leather with explosive. The detector system produces pulses of fast moving neutrons that penetrate the ... suspect object and scatter off atomic nuclei in the explosive, releasing gamma rays ...
LIDAR Imaging Detector Could Build 'Super Road Maps' of Planets and Moons
Technology that could someday "MapQuest" Mars and other bodies in the solar system is under development at Rochester Institute of Technology's Rochester Imaging Detector Laboratory (RIDL), in collaboration with Massachusetts Institute of Technology's Lincoln Laboratory. view more (2008-05-16)
... Rochester Institute of Technology's Rochester Imaging Detector Laboratory (RIDL), in collaboration with Massachusetts Institute of Technology's Lincoln ... developing a new type of detector that uses LIDAR (LIght Detection and Ranging), a technique similar ... a new generation of optical/ultraviolet imaging LIDAR detectors that will significantly extend NASA science capabilities for planetary applications ... of coverage than the single-pixel detectors currently combined with ...
Toward world's smallest radio: nano-sized detector turns radio waves into music
Researchers report development of the world's first working radio system that receives radio waves wirelessly and converts them to sound signals through a nano-sized detector made of carbon nanotubes. view more (2007-10-18)
... sound signals through a nano-sized detector made of carbon nanotubes. The "carbon nanotube radio" device is ... demonstration, the researchers incorporated the detector into a complete radio system and used it to successfully ... have developed nano-sized radio wave detectors in the past, the current study marks the first time ... first time that a nano-sized detector has been demonstrated in an actual ...
Delft nano-detector very promising for remote cosmic realms
A miniscule but super-sensitive sensor can help solve the mysteries of outer space. Cosmic radiation, which contains the terahertz frequencies that the sensors detect, offers astronomers important new information about the birth of star systems and planets. view more (2007-01-18)
... on this research subject.
The detector, called a 'hot electron bolometer', is based on the well-known ... of a superconductor renders the detector extremely sensitive and allows it to be used for radiation ... be so well detected.
The detector works for terahertz frequencies, which astronomers and atmospheric scientists are ... are extremely interested in. The detector's core is comprised of a small ...
2,500 researchers, 1 supermachine, 1 new snapshot of the universe
Deep in the bowels of the earth -100 metres below ground in Geneva, Switzerland - lies a supermachine of 27 km circumference called the Large Hadron Collider (LHC) that has been built to unlock the mysteries of the universe. view more (2008-04-01)
... test and build the ATLAS detector at the supermachine that will provide a new perspective into ... for Nuclear Research, the ATLAS detector, the largest among the four detectors operating at the supermachine in question, is 46 metres in ... conducted to ensure the ATLAS detector will run smoothly. His investigations also led to the creation ... ATLAS that uses pixel silicon detectors ...
Virtual robot outlines damaged heart muscle
In a joint project with the STW Technology Foundation, medical information technologists from Leiden have developed a virtual robot which meticulously scans the heart muscle using images of the heart. The contours detector reduces the work of specialists and does not affect the patients. The research group will present the results in the middle of... view more... (2002-05-23)
... of the heart. The contours detector reduces the work of specialists and does not affect the ... of MRI images (magnetic resonance imaging). The images provide 10 cross-sections of the heart on 20 ... images. In the newly-developed contours detector, a virtual robot delineates the heart boundaries on the MRI ... images. The contours indicate where the heart wall lies and therefore the ...
New quantum dot transistor counts individual photons
A transistor containing quantum dots that can count individual photons (the smallest particles of light) has been designed and demonstrated at the National Institute of Standards and Technology (NIST). view more (2007-10-12)
... higher temperatures than other single-photon detectors-practical advantages for applications such as quantum key distribution (QKD) for ... It is the first transistor-based detector to count numbers of photons; most other types of single-photon ... most other types of single-photon detectors simply "click" in response to any small number of photons. ... of various types of single-photon detectors used at NIST.) Counting requires a ...
Angled gantry technique reduced breast radiation exposure by 50 percent
A novel angled gantry approach to coronary CT angiography reduced radiation exposure to the breast by more than 50%, according to Thomas Jefferson University researchers. view more (2008-12-04)
... were obtained with a 64 detector helical scanner. They evaluated sagital images to: 1) define the ... that might be accomplished by imaging the heart with an angled gantry acquisition.
The standard axial imaging plane for coronary CT angiography required a 6.5cm. ± 1.8 ... cm. overlap with the lower breast. The overlap with the lower breast using the angled scan was reduced ...
Listening to dark matter
A team of researchers in Canada have made a bold stride in the struggle to detect dark matter. The PICASSO collaboration has documented the discovery of a significant difference between the acoustic signals induced by neutrons and alpha particles in a detector based on superheated liquids. view more (2008-10-16)
... and alpha particles in a detector based on superheated liquids.
Since neutron induced signals are very similar ... searches with this type of detector.
So far, alpha particles have been an obstacle to the detection ... particles (WIMPs) in PICASSO. This detector, which is based on the operation principle of the classic ... present in traces in the detector material itself. WIMPs are thought to ...
Physicists meet to discuss $170 million neutrinos project
Physicists from all over the world will meet this week at the University of Sussex to discuss the latest developments in a $170 million project called MINOS. view more (2002-09-09)
... near Chicago to a huge detector over 400 miles away in northern Minnesota. "We're responsible for ... the energy calibration of the detector," says Dr Philip Harris, Senior Lecturer in Physics at the ... to discuss their progress. The detector resembles an enormous loaf of sliced bread, the weight of ... a battleship, built half a mile underground, accessed only via a narrow ...
New detector will aid dark matter search
Several research projects are underway to try to detect particles that may make up the mysterious "dark matter" believed to dominate the universe's mass. view more (2008-12-12)
... universe's mass. But the existing detectors have a problem: They also pick up particles of ordinary ... has a solution. A new detector she and her students have built just finished its initial ... one of the existing dark-matter detectors, the new device should identify all of the ordinary neutrons ... anything else that the other detector picks up as a strong candidate ...
MINOS detector ready to take first data
Today, (August 14th), sees the start of data collection on the Main Injector Neutrino Oscillation Search (MINOS) detector, situated in the Soudan iron mine, Minnesota, USA. UK particle physicists, working within an international collaboration, will use the MINOS detector to investigate the phenomenon of neutrino mass - a puzzle that goes to the... view more... (2003-08-14)
... Injector Neutrino Oscillation Search (MINOS) detector, situated in the Soudan iron mine, Minnesota, USA. UK particle ... collaboration, will use the MINOS detector to investigate the phenomenon of neutrino mass - a puzzle ... of particle physics. The MINOS detector will start measurements of cosmic ray showers penetrating the Earth. ... Soudan Mine, Minnesota. The 30-metre-long detector consists of 486 massive octagonal planes, ...
PIONEERING LOW-COST MEDICAL SCANNER DEVELOPED IN THE UK
A new type of medical imaging camera which is much less expensive than its conventional counterpart has been developed by researchers funded by the Engineering and Physical Sciences Research Council. The imaging method - positron emission tomography - is becoming increasingly important in the diagnosis of many diseases, especially cancer.Clinical... view more... (2000-07-10)
A new type of medical imaging camera which is much less expensive than its conventional counterpart ... Physical Sciences Research Council. The imaging method - positron emission tomography - is becoming increasingly important ... cancer.Clinical trials of the new detector are scheduled to start shortly and a consortium of companies ... the Rutherford Appleton Laboratory.In PET imaging a radioactive chemical - termed a ...
Just-Right PET/CT Imaging for Patients of All Sizes
Researchers discovered that diagnostic accuracy of images can be improved for people of varying weight and size with use of a fully 3-D, time-of-flight positron emission tomography (PET) with computed tomography (CT) scanner. view more (2006-06-05)
... new time-of-flight scanner—used with LYSO detector crystals—will improve the diagnostic accuracy of images, potentially leading to ... accuracy," added the co-author of "Imaging Performance of an LYSO-Based TOF PET Scanner." PET—a unique medical ... PET Scanner." PET—a unique medical imaging procedure that provides information about the body's chemistry, cell function ... radiation therapy compared with other imaging techniques. PET can search for cancer ... |
