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This small planetary rover can scan the surface for traces of rare minerals. Inspired by the classic 1980 Mineral Detector set.
Despite weird looks from my neighbors, I finally metal-detected my front yard. The Matchbox car was the big find, but also two dimes and a 1944 wheat penny.
Lie Detectors taldearen kontzertu argazkiak, Gazteszenako Ttan-ttakun festan...
Fotos de concierto del grupo Lie Detectors, en la fiesta Ttan-ttakun de Gazteszena...
'Air Draught' is the height of a ship above water. Many ships have masts or superstructure that can be temporarily lowered to reduce their air draught when required.
The Manchester Ship Canal is crossed by a dozen fixed high level bridges. Some of these were originally equipped with a means of alerting over-height ships approaching them. This consisted of a cable stretched between two masts, connected so that a ship which snagged it would lift some weights and perhaps ring a bell.
Here, Arklow Cape passes between the abandoned masts below Warburton Bridge; you can just see the pulleys at the top of each mast but the cable is long gone.
It's just after 9am and the QLACMEM6-23A is approaching the Abo, NM detector site at milepost 860 on BNSF's Clovis Sub just east of Abo Canyon.
The 5400-ton, 6900-foot domestic stack train is struggling upgrade out of the Abo arroyo with two GE's. The train is about ease through all the latest in detector technology including an AEI reader, look-up cameras in the tracks to detect lateral motion, and cameras pointed at the running gear and air hoses to detect potential issues.
Came across dozens of men and women at a Metal Detecting Event at Kingsbarns, Fife, Scotland.
I got chatting to him....there is a lot more to this than meets the eye! It is a great hobby. Local history, the great outdoors, meeting people, the prospect of a valuable find (historical and/or monetary!). The stubble field where this event is held is close to a medieval settlement and artefacts commonly found are coins, jewellery, and bits of broken tractor!
End view of a collision of two 30-billion electron-volt gold beams in the STAR detector at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. The beams travel in opposite directions at nearly the speed of light before colliding.
Scientists move a section of the iTOP detector at the SuperKEKB facility in Japan. Among the flags in the background are those from the four nations whose scientists built iTOP: The United States, Italy, Japan and Slovenia.
Terms of Use: Our images are freely and publicly available for use with the credit line, "Courtesy of Pacific Northwest National Laboratory." Please use provided caption information for use in appropriate context.
This view of the STAR detector at the Relativistic Heavy Ion Collider shows endcap calorimeter electronics (blue with black cables) and four new planes of small-strip Thin Gap Chambers (copper colored with white at edges) during insertion into the detector.
©AVucha 2013
Woodstock Fire/Rescue and the Bull Valley Police Department responded to the 10,000 Block of Bull Valley Road for a smoke detector activating for no apparent reason.
Responding Units: Woodstock Truck 81, Bull Valley Police Car 149
The problem was due to a faulty battery in the smoke detector.
Bull Valley, Illinois
How long does a passage of a steel ball take?
Here is a scope recording of the detectors signal. Inputs are scanned every 4,096 msec. That is why the recording time is 5 scans or about 20 msec.
See:
One plane of three silicon tracker detector modules installed around the beampipe at one end of the STAR detector at the relativistic Heavy Ion Collider (RHIC). The shiny mirrorlike wedges, arrayed in alternating "inner" and "outer" positions, form a ring around the beampipe, with each sector connected to readout electronics.
Smoke detector and alarm - Feel free to use this photo for your website or blog as long as you include photo credit with a clickable (hyperlinked) and do-follow link to
The Solenoidal Tracker at RHIC (STAR) is a detector which specializes in tracking the thousands of particles produced by each ion collision at RHIC. Weighing 1,200 tons and as large as a house, STAR is a massive detector. It is used to search for signatures of the form of matter that RHIC was designed to create: the quark-gluon plasma. It is also used to investigate the behavior of matter at high energy densities by making measurements over a large area.
U.S. Department of Agriculture (USDA) Detector Dogs are participating in a feasibility study to detect the presence of the invasive Asian Longhorned Beetle (ALB); an invasive insect that’s killing trees in Massachusetts, New York, New Jersey and Oh io. Joseph Chopko, Training Specialist with RJ, Labrador Retriever while detecting ALB frass in tree
This is one of the NIRSpec detectors from the engineering test unit that is in the cleanroom at Goddard. The person holding it is on the European Space Agency team.
Credit: NASA/Catherine Lilly
The remains of the rock slide detector switch in Colby Cut at the Roseville Tunnel. The electrical "guts" are gone, all that remains are the mechanical parts. A wire cable would pass through the center of the unit, through the silver cylinder, and connect to the fence. If the fence was disturbed, it would cause the large armature in the unit to pop forward under spring tension and open switch contacts. Any break in the circuitry would cause signals to go red, warning an approaching train of trouble.
These units were manufactured by Union Switch & Signal (US&S) of Pittsburgh PA.
Single layer PCB IR detectors and a few others. Card format 100x160mm. I just have to cutting the different smaller PCB's.
The boards are now ready to solder the components.
The PHENIX detector at Brookhaven National Laboratory's Relativistic Heavy Ion Collider (RHIC) records many different particles emerging from RHIC collisions, including photons, electrons, muons, and quark-containing particles called hadrons.
U.S. Department of Agriculture (USDA) Detector Dogs are participating in a feasibility study to detect the presence of the invasive Asian Longhorned Beetle (ALB); an invasive insect that’s killing trees in Massachusetts, New York, New Jersey and Oh io. ALB Detector Dog Merlin, Beagle being trained to recognize beetle “frass” or excrement that the beetle leaves behind.
Physicist Salvatore Fazio in front of the STAR detector at Brookhaven's Relativistic Heavy Ion Collider (RHIC). STAR is a tracking detector that, like a giant barrel, covers the region around the point where beams of ions and subatomic particles collide. It's capable of tracking and analyzing thousands of particle sprays per second.
4,850 ft (1,478 m) underground
Nikon D4 + 14-24mm f/2.8G | Sanford Underground Laboratory at Homestake, Lead, SD, 28 Aug 2012
Do not use without permission.
The Large Underground Xenon Detector (LUX) is a 350 kg two-phase liquid xenon detector of dark matter particles. Liquid xenon both scintillates and becomes ionized when hit by particles (e.g. photons, neutrons and potentially dark matter). The ratio of scintillation over ionization energy caused by the collision provides a way of identifying the interacting particle. The leading theoretical dark matter candidate, the weakly interacting massive particle (WIMP), could be identified in this way.
Dark matter comprises most of the matter in the universe but its nature has yet to be determined. One of the leading candidates for the non-baryonic dark matter is the WIMP. WIMPs are expected to interact only with nuclei. Most of the events observed in noble liquid detectors such as LUX will be photons which interact predominantly with the electrons, which result in a different ionization signature than that of the WIMP nuclear collisions. This difference allows such detectors to remove much of the background events. [Source: Wikipedia]
The Solenoidal Tracker at RHIC (STAR) is a detector which specializes in tracking the thousands of particles produced by each ion collision at RHIC. Weighing 1,200 tons and as large as a house, STAR is a massive detector. It is used to search for signatures of the form of matter that RHIC was designed to create: the quark-gluon plasma. It is also used to investigate the behavior of matter at high energy densities by making measurements over a large area.
The Solenoidal Tracker at RHIC (STAR) is a detector which specializes in tracking the thousands of particles produced by each ion collision at RHIC. Weighing 1,200 tons and as large as a house, STAR is a massive detector. It is used to search for signatures of the form of matter that RHIC was designed to create: the quark-gluon plasma. It is also used to investigate the behavior of matter at high energy densities by making measurements over a large area.
The Solenoidal Tracker at RHIC (STAR) is a detector which specializes in tracking the thousands of particles produced by each ion collision at RHIC. Weighing 1,200 tons and as large as a house, STAR is a massive detector. It is used to search for signatures of the form of matter that RHIC was designed to create: the quark-gluon plasma. It is also used to investigate the behavior of matter at high energy densities by making measurements over a large area.
Physicist Jamie Dunlop in front of the STAR detector at Brookhaven National Laboratory's Relativistic Heavy Ion Collider (RHIC).
Physicist Bill Christie stands behind what's called a carbon fiber inner detector support structure at the Relativistic Heavy Ion Collider’s STAR Detector. Inside this support structure is the beam pipe in which accelerated particles travel prior to collision inside the detector. The support structure allows RHIC physicists to install new particle detection sub systems into the center of the STAR Detector. It will support a device called the Forward GEM Tracker (FGT) and the first engineering prototype of a new Pixel Silicon detector. In the future, it will support the FGT, the complete new Pixel Silicon detector, as well as two more Silicon detectors/technologies: the Intermediate Silicon Tracker (IST) and the Silicon Strip Detector (SSD).
The new silicon detectors will improve many physics measurements for STAR, and allow physicists for the first time to directly measure particles emerging from collisions that carry what is known as "open charm."
The FGT detector allows scientists to measure the positrons or electrons that result from the decay of particles known as W bosons, where these decay products are produced at forward angles. It is used as part of the 500 gigaelectron-volt (GeV) polarized proton-proton physics program.
A sturdy and versatile Sensitive Detector is standard fare for the instrument banks of any well-appointed ray-worker's shop.
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Muon Resistive Plate Chamber (RPC-1) in the PHENIX detector at Brookhaven's Relativistic Heavy Ion Collider (RHIC).
PHENIX weighs 4,000 tons and has a dozen detector sub-systems. Three large steel magnets produce high magnetic fields to bend charged particles along curved paths. Tracking chambers record hits along the flight path to measure the curvature and thus determine each particle's momentum. Other detectors identify the particle type and/or measure the particle's energy. Still others record where the collision occurred and determine whether each collision was "head-on" (central), a "near-miss" (peripheral), or something in between.
Top half of the muon Resistive Plate Chamber (RPC-1) in the PHENIX detector at Brookhaven's Relativistic Heavy Ion Collider (RHIC).
PHENIX weighs 4,000 tons and has a dozen detector sub-systems. Three large steel magnets produce high magnetic fields to bend charged particles along curved paths. Tracking chambers record hits along the flight path to measure the curvature and thus determine each particle's momentum. Other detectors identify the particle type and/or measure the particle's energy. Still others record where the collision occurred and determine whether each collision was "head-on" (central), a "near-miss" (peripheral), or something in between.
A close-up of the collision point at the center of the PHENIX detector at Brookhaven's Relativistic Heavy Ion Collider (RHIC). Visible are the copper "nose-cones", the beryllium beam-pipe, and half of the silicon vertex detector and forward silicon vertex detector. The black parts make up the carbon fiber support structure. Vertex trackers are used to reconstruct the trajectories of particles emitted from a collision. The very fine position resolution of these trackers allows the primary collision point to be accurately located.
PHENIX weighs 4,000 tons and has a dozen detector sub-systems. Three large steel magnets produce high magnetic fields to bend charged particles along curved paths. Tracking chambers record hits along the flight path to measure the curvature and thus determine each particle's momentum. Other detectors identify the particle type and/or measure the particle's energy. Still others record where the collision occurred and determine whether each collision was "head-on" (central), a "near-miss" (peripheral), or something in between.
The PHENIX detector at Brookhaven's Relativistic Heavy Ion Collider (RHIC).
PHENIX weighs 4,000 tons and has a dozen detector sub-systems. Three large steel magnets produce high magnetic fields to bend charged particles along curved paths. Tracking chambers record hits along the flight path to measure the curvature and thus determine each particle's momentum. Other detectors identify the particle type and/or measure the particle's energy. Still others record where the collision occurred and determine whether each collision was "head-on" (central), a "near-miss" (peripheral), or something in between.
A ground-level view of the silicon vertex tracker (VTX) and forward silicon vertex tracker (FVTX) in the PHENIX detector at Brookhaven's Relativistic Heavy Ion Collider (RHIC). Vertex trackers are used to reconstruct the trajectories of particles emitted from a collision. The very fine position resolution of these trackers allows the primary collision point to be accurately located.
PHENIX weighs 4,000 tons and has a dozen detector sub-systems. Three large steel magnets produce high magnetic fields to bend charged particles along curved paths. Tracking chambers record hits along the flight path to measure the curvature and thus determine each particle's momentum. Other detectors identify the particle type and/or measure the particle's energy. Still others record where the collision occurred and determine whether each collision was "head-on" (central), a "near-miss" (peripheral), or something in between.
Technician Mike Lenz adjusts part of the forward silicon vertex tracker in the PHENIX detector at the Relativistc Heavy Ion Collider (RHIC). Part of the concentric cylinders of the silicon vertex tracker can be seen behind the "X" shaped, black carbon fiber support structure at bottom center. Vertex trackers are used to reconstruct the trajectories of particles emitted from a collision. The very fine position resolution of these trackers allows the primary collision point to be accurately located.
PHENIX weighs 4,000 tons and has a dozen detector sub-systems. Three large steel magnets produce high magnetic fields to bend charged particles along curved paths. Tracking chambers record hits along the flight path to measure the curvature and thus determine each particle's momentum. Other detectors identify the particle type and/or measure the particle's energy. Still others record where the collision occurred and determine whether each collision was "head-on" (central), a "near-miss" (peripheral), or something in between.
The PHENIX detector at Brookhaven National Laboratory's Relativistic Heavy Ion Collider (RHIC) records many different particles emerging from RHIC collisions, including photons, electrons, muons, and quark-containing particles called hadrons. The detector is shown here in a disassembled condition during maintenance.
Technician Paul Giannotti stands in front of the central magnet of the PHENIX detector at Brookhaven's Relativistic Heavy Ion Collider (RHIC).
PHENIX weighs 4,000 tons and has a dozen detector sub-systems. Three large steel magnets produce high magnetic fields to bend charged particles along curved paths. Tracking chambers record hits along the flight path to measure the curvature and thus determine each particle's momentum. Other detectors identify the particle type and/or measure the particle's energy. Still others record where the collision occurred and determine whether each collision was "head-on" (central), a "near-miss" (peripheral), or something in between.
Silicon vertex trackers in the PHENIX detector at Brookhaven's Relativistic Heavy Ion Collider (RHIC). Most of what's visible in the central portion of the photo is the black carbon fiber support structure. The vertical planes of the forward silicon vertex tracker are just visible at the left and right ends. Vertex trackers are used to reconstruct the trajectories of particles emitted from a collision. The very fine position resolution of these trackers allows the primary collision point to be accurately located.
PHENIX weighs 4,000 tons and has a dozen detector sub-systems. Three large steel magnets produce high magnetic fields to bend charged particles along curved paths. Tracking chambers record hits along the flight path to measure the curvature and thus determine each particle's momentum. Other detectors identify the particle type and/or measure the particle's energy. Still others record where the collision occurred and determine whether each collision was "head-on" (central), a "near-miss" (peripheral), or something in between.
The Solenoidal Tracker at RHIC (STAR) is a detector which specializes in tracking the thousands of particles produced by each ion collision at RHIC. Weighing 1,200 tons and as large as a house, STAR is a massive detector. It is used to search for signatures of the form of matter that RHIC was designed to create: the quark-gluon plasma. It is also used to investigate the behavior of matter at high energy densities by making measurements over a large area.