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Photon in Medical News

IBM reports milestone in silicon nanophotonics

... for biomedical applications and the longest photon lifetime in a photonic crystal nanocavity ... University reports the observation of the longest photon lifetime of 2.1 ns in a photonic crystal ... optical cycles. "High-Q nanocavity with a 2-ns photon lifetime." Takahashi, H. Hagino, Y. Tanaka, T. ...

Accuray Receives FDA Clearance for New Dose Calculation Technique for Body Radiosurgery

... beam is made up of trillions of photons, and each photon follows an individual path to the target. ... potential interactions for each individual photon into account when it calculates the dose being ... with a Monte Carlo dose calculation algorithm for photon beam radiation treatment that is capable of ...

High Calcium Level in Arteries May Signal Serious Heart Attack Risk

... and may lead to arrhythmia, heart attack or heart failure. Single photon emission computed tomography (SPECT) myocardial perfusion imaging is a ... in the U.S.   Combining calcium scoring with single photon emission computed tomography (SPECT) can help to identify patients with ...

Siemens Demonstrates Flash Speed, Lowest Dose at ACC 2009

... radiation dose previously required. This is achieved via a new, selective photon shield which blocks unnecessary parts of the energy spectrum. It thereby provides improved separation of the two simultaneous scans with low and high photon energy, without causing a higher radiation exposure than would result from ...

Flash Speed. Lowest Dose.

... radiation dose previously required. This is achieved via a new, selective photon shield which blocks unnecessary parts of the energy spectrum. It thereby provides improved separation of the two simultaneous scans with low and high photon energy, without causing a higher radiation exposure than would result from ...

Open cancer surgery set to become a thing of the past

... well with techniques such as Positron Emission Tomography (PET) and Single photon Emission Computed Tomography (SPECT). Such techniques mean that tumours ... U-SPECT scanner he developed himself. This Ultra-high resolution Single photon Emission Computed Tomographer has significant advantages over other ...

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Photon in Medical Technology

Siemens Preclinical Imaging System Helps The Methodist Hospital in Houston Further Its Research Mission

... that allows users to combine positron emission tomography (PET), single photon emission computed tomography (SPECT) and computed tomography (CT) ... allows users to quickly fuse and compare up to three PET*CT or single photon emission computed tomography and CT (SPECT*CT) studies simultaneously. ...

Alseres Pharmaceuticals Completes Enrollment in First Stage of the Altropane(R) POET-2 Phase III Program

... specifically binds to the dopamine transporter (DAT) protein found on the surface of dopamine-producing neurons, making it visible during Single photon Emission Computed Tomography or "SPECT" imaging. Since most forms of Parkinsonian Syndromes result in a decreased number of dopamine-producing ...

Phase II Data on Lilly's Antibody Show It Affects Amyloid Beta, a Protein Believed To Be Associated with Alzheimer's Disease

... included magnetic resonance imaging (MRI) and cerebrospinal fluid examinations. A sub-study of 24 patients and 13 volunteers underwent single photon emission tomography (SPECT) scanning using an experimental tracer to assess levels of amyloid beta plaque in the brain. The interim analysis showed ...

Alseres Pharmaceuticals Expands Sites for the First Stage of the ALTROPANE(R) Phase III Clinical Trial Program

... that specifically binds to the dopamine transporter (DAT) protein found on the surface of dopamine-producing neurons, making it visible during Single photon Emission Computed Tomography or "SPECT" imaging. Since most forms of Parkinsonian Syndromes result in a decreased number of dopamine-producing cells, ...

Alseres Pharmaceuticals Initiates the ALTROPANE(R) POET-2 Phase III Clinical Trial Program

... that specifically binds to the dopamine transporter (DAT) protein found on the surface of dopamine-producing neurons, making it visible during Single photon Emission Computed Tomography or "SPECT" imaging. Since most forms of Parkinsonian Syndromes result in a decreased number of dopamine-producing cells, ...

Avid Announces Results of AV-1 Molecular Imaging Agent for Alzheimer's Disease Presented at AD/PD Meeting

... build-up in the brain. Avid's technology can be used with a variety of imaging technologies such as positron emission tomography (PET) and single photon computed tomography (SPECT) and is currently being tested in a number of pilot human studies. In July 2006 Bayer Schering Pharma AG, Germany, ...
Photon in Medical Products

Photon Laser Phacolysis system

Description:... it directly, and only, at target tissues. The photon Probe is unlike U/S hand pieces. The probe has no ... fully visible "quiet" technique. The photon Laser creates an ambient temperature increase of ... is generated at the wound with U/S. The photon Trap The ...
Company:Paradigm Medical Industries, Inc.

CardiArc Cardiac SPECT System

Description:... CardiArc has developed and patented a new, smaller and faster technology for cardiac single photon emission computed tomography (SPECT) with twice the resolution of existing devices. The CardiArc system is as small as an executive chair, runs on ...
Company:CardiArc, Inc.

StarLux Pulsed Light and Laser System

Description:... light-based treatments, up to 60% of light is reflected back off the skin surface, and not delivered to the treatment target. But Palomar's patented photon Recycling process uses mirrors within the handpiece to recapture this scattered light and send it back to the treatment area for a more efficient ...
Company:Palomar Medical Technologies, Inc.

RUBYstar

Description:... e.g. biomolecular interactions, receptor binding assays and molecular biological applications. High energy laser light source (337 nm) Single photon counting detection system Sensitive measurements for reading low reagent concentrations Low volume reading in 384 well format Faster reading ...
Company:BMG LABTECH

C&L Dye Fluorometer

Features:... Integrated filter wheel Complete optics for fluorescence excitation and photon detection End-on photomultiplier tube operating in the photon count mode Internal Shutter Windows® based data acquisition ...
Company:C&L Instruments, Inc.

Photon Laser Phacoemulsification System

Features:... Ultrasound provides a backup energy source for laser cases. photon utilizes high performance fluidics common with our U/S platform. The disposable photon laser probe uses a standard silicone irrigation sleeve. The contoured ...
Company:Paradigm Medical Industries, Inc.
Photon in Medical Definition

Nuclear medicine

... a "dynamic" dataset, a cardiac gated time sequence, or a spatial sequence where the gamma-camera is moved relative to the patient. SPECT (single photon emission computed tomography) is the process by which images acquired from a rotating gamma-camera are reconstructed to produce an image of a "slice" ...
Photon in Medical Dictionary

Accidents

... accidents in the home and at play. It includes sections on water and fire safety . Contrast im aging agent commonly used with SPECT (single photon emission-computed tomographic) im aging to detect cerebro vascular accidents ; ... Blood pressure , pulse rate and respiration were all ...

Cataracts

... in humans. Blood tests, including a complete blood count and kidney and liver function tests , should be done about every 6 months. photon LaserPhaco probe/Photon laser system System utilizes an Nd:YAG laser for more atraumatic removal of cataracts by first breaking up the cataract ...

Mammography

... : Xeroradiography of the breast . Xeroradiography is a photoelectric method of recording an x-ray image on a coated metal plate, using low-energy photon beams, long exposure time and dry chemical developers. Digit al mammography may have some advantages over conventional mammography . The ...

MIBG

... and 131I- MIBG are used for the detection, st aging and follow up of patients with neuroblastoma . Iodine-123 MIBG has the advantage of higher photon flux and the ability to allow SPECT with low energy collimators. However, it may be necessary to scan other areas of the body, such as the neck, ...
Photon in Biological News

Novel technique for fluorescence tomography of tumors in living animals

... photons are the first photons that arrive onto a photon detector after illumination of tissue by an ultra-short photon pulse and undergo less scattering in comparison ... With this technique, called ,Early photon Tomography' (EPT), the scientists imaged lung ...

JILA solves problem of quantum dot 'blinking'

... an antioxidant chemical used as a food additive, the JILA team increased photon emission rate four- to fivefold, a shocking result because the rate at ... the average time delay between excitation of a quantum dot and resulting photon emission from 21 nanoseconds to 4 nanoseconds while reducing the ...

Argonne to showcase science and technology at community open house

... one of your own Visualize local, national and international environmental projects with interactive 3-D maps Tours will include the Advanced photon Source, the Western Hemisphere's most brilliant source of X-rays for research; the Center for Nanoscale Materials, a leading nanotechnology research ...

Obama administration announces more than $327 million in Recovery Act funding for science research

... analysis related to the development of Smart Grid. Argonne National Laboratory; Argonne, IL$5.6 million for improvements at the Advanced photon Source. Lawrence Livermore National Laboratory; Livermore, CA$810,000 for fusion energy research. Sandia National Laboratories; Sandia, NM, and ...

New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report

... Grupo Laser Idoseme II-39 Lockheed Martin Acquires Aculight II-39 Hypertherm Finalizes Acquisition of ESSE A II-39 Domino Acquires photon Energy and NWL II-39 Arasor Takes Over Novalux II-40 LightMachinery Acquires Popular Laser Products of GSI II-40 Northrop Signs Agreement ...

Two-day symposium in Baltimore to tackle the promises and perils of proton radiotherapy

... 3, 2009 -- Proton therapy has been hailed as a revolutionary cancer treatment, with higher cure rates and fewer side effects than traditional X-ray photon radiotherapy. Proton therapy is the modality of choice for treating certain small tumors of the eye, head, head or neck. It is also safer -- ...

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Photon in Biological Technology

Light sensor breakthrough could enhance digital cameras

... most, one electron's worth of current for every photon (particle of light) that strikes the pixel," says ... "Instead generating multiple excitons per photon could ultimately lead to better low-light ... a current that flows as a result. Normally, each photon is converted into at most one exciton. This ...

Quantum dots and nanomaterials: Ingredients for better lighting and more reliable power

... one electron-hole pair for every absorbed photon in most solar cells," Jabbour says, but ... generating more multiple electron-hole pairs per photon to achieve increased power-conversion efficiency. ... a higher number of electrons for each absorbed photon from incident light. In most bulk ...

Research highlights potential for improved solar cells

... has shown that carrier multiplicationwhen a photon creates multiple electronsis a real phenomenon in ... When a conventional solar cell absorbs a photon of light, it frees an electron to generate an ... Photogeneration of another electron by a second photon results in a two-hole, one-electron state, ...

Avalanche photodiodes target bioterrorism agents

... can create much larger currents for each photon compared to normal photodiodes. Once the ... "One electron-hole pair that is produced by a photon absorption event creates a million other ... are sensitive enough to detect only one photon at a time. When the Geiger-mode detector is ...

Avalanche photodiodes target bioterrorism agents

... can create much larger currents for each photon compared to normal photodiodes. Once the ... "One electron-hole pair that is produced by a photon absorption event creates a million other ... are sensitive enough to detect only one photon at a time. When the Geiger-mode detector is ...

UC San Diego nanostructures will raise thin-film solar cell efficiency

... can increase solar cell efficiency by raising photon absorption by lowering the energy band gap. ... current, explained Edward Yu. This enables high photon absorption efficiency, high electron and hole ... path to the electrode. This design maximizes photon absorption while minimizing a major drain on ...

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Photon in Biological Products

N5 Submicron Particle Size Analyzer - 115V from Beckman Coulter

Description:... you. You need an analyzer that can reliably detect the component populations in your sample every time. The N5 Submicron Particle Size Analyzer uses photon Correlation Spectroscopy (PCS) , which determines particle size by measuring the rate of fluctuations in laser light intensity scattered by particles ...
Company:Beckman Coulter

N5 Submicron Particle Size Analyzer - 230V from Beckman Coulter

Description:... you. You need an analyzer that can reliably detect the component populations in your sample every time. The N5 Submicron Particle Size Analyzer uses photon Correlation Spectroscopy (PCS) , which determines particle size by measuring the rate of fluctuations in laser light intensity scattered by particles ...
Company:Beckman Coulter

Lumat Singel Tube Luminometer LB 9507 from BERTHOLD TECHNOLOGIES GmbH & Co. KG

Description:... The Lumat tube luminometer provides the sensitivity and versatility you expect from a general purpose luminometer. Advanced digital photon counting with selected photomultipliers ensure superior sensitivity and best match of spectral demands. Equipped with up to 2 reagent injectors the ...
Company:BERTHOLD TECHNOLOGIES GmbH & Co. KG

FDSS6000 System from Hamamatsu Photonic Systems - Drug Discovery

Description:... and luminescence modalities. The Hamamatsu light sources and cameras in the FDSS6000 highlight our companys decades-long experience in photon detection technology. It is a modular, upgradable, and fully integrated system. Versatility, reliability, uniqueness all describe the Functional ...
Company:Hamamatsu Photonic Systems - Drug Discovery

LUMIstar OPTIMA Microplate Reader from BMG LABTECH

Description:... GUS assays (-glucuronidase) ROS (reactive oxygen species) Enzyme activity assays Nucleic acid detection (PCR Quantification) BMG LABTECHs Digital photon Integration (DPI) technology and the programmable Gain control give the LUMIstar OPTIMA the best sensitivity, with extended linear dynamic range. By ...
Company:BMG LABTECH
Photon in Biological Definition

Photon

... In physics , the photon (from Greek ... blocks of electromagnetic radiation : that is, a photon is a "particle" of light , although, according ... 7 External links Symbol A photon is usually given the symbol γ ( gamma ), ...

Diffusion

... 2.5 Electron diffusion 2.6 Momentum diffusion 2.7 Osmosis 2.8 photon diffusion 2.9 Reverse diffusion 2.10 Thermal diffusion 3 See ... diffusion of a solute across a selectively permeable membrane . photon diffusion When photons travel through a material with a high optical ...

Light-dependent reaction

... way as the electron drops in energy level. The electrons originate when a photon of sunlight strikes a chlorophyll molecule contained within a photosystem ... process involving two different chlorophyll photosystems. First, a photon is absorbed by the chlorophyll core of photosystem II, exciting two ...

Light-dependent reaction

... way as the electron drops in energy level. The electrons originate when a photon of sunlight strikes a chlorophyll molecule contained within a photosystem ... process involving two different chlorophyll photosystems. First, a photon is absorbed by the chlorophyll core of photosystem II, exciting two ...

X-ray crystallography

... their protein targets. The molecule must be crystallized because one photon diffracted by one electron cannot be reliably detected. However, because ... X-ray sources and detectors limit the measurement of only the diffracted photon intensities and not their respective phases, the latter encoding the ...

Absorption spectrum

... of an electron to a higher orbit are absorbed by the gas. Afterwards, the electron does not stay in its higher orbit and falls back down, emitting a photon of exactly the same frequency as the one absorbed. However, this is emitted in all directions, not just in the direction in which the electromagnetic ...

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Photon in Biological Dictionary

Photon

... In physics, a photon is an elementary particle, the quantum of the ... force carrier for the ... photon A quantum of electromagnetic energy. Like ... appear as both waves and ... Einstein model of a photon gas. 7 Stimulated and ... ...

Absorption

... radiation is the way by which the energy of a photon is taken up by matter, typically the electrons ... emission, stimulated emission requires that the photon ... high energy photon is absorbed by an atom or ... Absorption ...

Lumen

... Lumen Entertainment is a production company that creates ... Lumen photon Therapy Online Introduction To Light Therapy ... WHNS FOX 21™ featured Lumen on May 27th, 2004, calling photon therapy a "Ray of Hope" ... Now that Lumen has been written in Cocoa ...

Structural biology

... B. ... The Structural Biology Center (SBC) operates a national user facility for macromolecular crystallography at Sector 19 of the Advanced photon Source at Argonne ... The New York Structural Biology Center is a 501 (c) (3) corporation incorporated ... NMR Structural Biology in Life ...

Rod cells

... inner plexiform layer where they terminate ... Two amacrine cells are key in the rod pathway circuitry through the ... ... a cone, a single photon is all it takes to produce a response from a rod cell . ... The rod -shaped outer segment of a rod cell , which is the light-sensitive ...

Photosystem

... we have shown that the two steps by ... brief review of photosystem II. Structure of the Photosystem II Core Subunits, ... Absorption of 1 photon of light by Photosystem II removes 1 electron from P680. ... Activation of P700 in photosystem I enables it to pick up electrons from the ... ...

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