Photomultiplier

U.S. Patent Infringement Lawsuit Filed by Aperio Technologies, Inc.

..., a leading manufacturer of devices for the generation and measurement of infrared, visible, and ultraviolet light. These devices include photodiodes, photomultiplier tubes, scientific light sources, infrared detectors, photoconductive cells, and image sensors. The parent company is dedicated to the advancement of p...

Frost & Sullivan Recognizes Zecotek Photonic's Medical Imaging Achievement, Development of Next-Generation Scintillation Crystals and Photo Detector Technology

...ts for its lutetium fine silicate (LFS) scintillation crystals in many countries and a series of pending and granted patents for its novel solid-state photomultiplier and Depth of Interaction design considerations," says Frost & Sullivan Industry Analyst Travis Chong. "The Company is integrating all these compon...

MRI/PET scanner combo

...vide less structural detail than MRI scans, especially of soft tissue, Cherry said. They also give the patient a dose of radiation from X-rays. The photomultiplier tubes used in conventional PET machines are very sensitive to magnetic fields. So the researchers used a new technology -- the silicon avalanche photo...

Photomultiplier in Medical Technology

Digital vs. Analog Mammography

...ntire breast. The computed radiography cassette, utilizes laser beam scanning to de-energize the plate, resulting in light that is detected by a photomultiplier tube and then produces a digital image. It produces a special resolution of 50 m. Digital mammography also has an intrinsically wider dynamic ra...

Photomultiplier in Medical Products

RF-5301PC - Spectrofluorophotometer

Description:... The essence of fluorescence analysis is sensitivity. The high throughput optical system in the RF-5301PC employs a blazed holographic grating, photomultiplier and digital signal processing to provide the highest level S/N ratio attainable....
Company:Shimadzu Scientific Instruments, Inc.

C&L Dye Fluorometer

Features:...mination Source - 150 or 300 Watt xenon arc lamp 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 software ...
Company:C&L Instruments, Inc.

Photomultiplier in Medical Definition

Nuclear medicine

...tector, such as a single large thallium-doped sodium iodide NaI(Tl) scintillation crystal, coupled with an imaging sub-system such as an array of photomultiplier tubes and associated electronics. Solid-state gamma-ray detectors are available [1] , but are not yet commonplace. Gamma-cameras employ lead or tun...

Photomultiplier in Biological News

Tiny avalanche photodiodes target bioterrorism agents

...current gain of more than 700. The tiny-sized APDs should be capable of efficient detection of light with near single photon precision. Previously, photomultiplier tubes (PMTs) were the only available technology in the short wavelength UV portion of the spectrum capable of this sensitivity. These fragile vacuum t...

Photomultiplier in Biological Technology

Determining the Signal-to-Noise Ratio and Optimal Photomultiplier gain setting in the GenePix 4000B

Siobhan Pickett, M.S., Sean Carriedo, Ph.D. and Chang Wang, Ph.D. Axon Instruments, Inc. 3280 Whipple Road, Union City, CA 94587 Last updated: September 13, 2001 Introduction An important criterion for comparing the perf...

Avalanche photodiodes target bioterrorism agents

...ement for compact, reliable and cost-effective sensors to detect anthrax and other bioterrorism agents in the air. "The military is currently using photomultiplier tubes, which are bulky, fragile and require a lot of power to run them, or silicon photodiodes that require a complex filter so that they only detect ...

Avalanche photodiodes target bioterrorism agents

...ement for compact, reliable and cost-effective sensors to detect anthrax and other bioterrorism agents in the air. "The military is currently using photomultiplier tubes, which are bulky, fragile and require a lot of power to run them, or silicon photodiodes that require a complex filter so that they only detect ...

Tiny avalanche photodiode detects single UV photons

...ave demonstrated visible-blind avalanche photodiodes (APDs) capable of detecting single photons in the ultraviolet region (360-200 nm). Previously, photomultiplier tubes (PMTs) were the only available technology in the short wavelength UV portion of the spectrum capable of single photon detection sensitivity. How...

IceCube Drilling Rig

...t the UW-Madison Physical Sciences Laboratory (PSL). To build IceCube, engineers and technicians will need to deploy strings of bowling ball-sized photomultiplier tubes (PMTs) deep beneath the ice at the South Pole. The PMTs will be frozen into kilometer-deep holes made with the help of the novel hot-water drill...

The Affymetrix GeneChip Scanner 3000 New Advances in Scanner Design for Superior Performance, Reliability, and Dynamic Range

... is designed to measure, and compensate for, long-term offset effects in the scanner hardware. Immediately prior to each scan, the system shutters the photomultiplier tube in order to produce a dark scan. The dark signal is the cumulative result of all of the electronic noise and offsets in the system at that time. ...

Cyclodextrin enhances room temperature phosphorescence

...LOG spectrophotometer with double excitation and emission monochromators. A 450-W xenon CW lamp was used as the excitation source, and a cooled R928 photomultiplier (PMT) tube as the detector. Slits were set to 14.4 nm (excitation) and 3.6 nm (emission). The scan rate was 1 nm s 1 . All emission spectra were corre...

Singlet Oxygen measurement

...he appropriate emission gratings and a suitable detector. Most multi-alkali photomultiplier tubes, such as the R928P, respond to wavelengths up to 800 nm. InGaAs detec...0 nm, the InGaAs detector provides a smooth overlap with the standard R928P photomultiplier tube.

Experiment and Results A...

Near IR capability of the FluoroLog

...o-meter, with its modular flexibility, gives choice of gratings, detectors, and other accessories. The standard FLUOROLOG configuration has an R928P photomultiplier tube in an L-format, and is sensitive out to ~ 850 nm. For near-IR fluores-cence measurements, an optional solid-state de-tector (DSS-IGA020L) can be ...

Wideband sensitivity of the FluoroLog-3

... Measurements were performed on a FLUOROLOG -3 spectrofluorometer with doublegrating monochromators, a 450-W xenon lamp, and a cooled R928 photomultiplier operated at 950 V in the photon-counting mode. The bandpass was set to 5.0 nm on both excitation and emission spectrometers. The same grating (3...

Photomultiplier in Biological Products

Infinite F200 from Tecan

Description:... Injector Prime/Wash hardware buttons for user convenience. Pump back function to minimize dead volume and save reagents. Spectrally enhanced photomultiplier tube optional. Photon counting luminescence module incl dual color luminescence. Temperature control. Plate formats 6-384, PCR plates, cuvett...
Company:Tecan

Infinite M200 from Tecan

Description:... Injector Prime/Wash hardware buttons for user convenience. Pump back function to minimize dead volume and save reagents. Spectrally enhanced photomultiplier tube optional. Photon counting luminescence module incl dual color luminescence. Temperature control. Plate formats 6-384, PCR plates, cuvett...
Company:Tecan

DNA Engine Opticon 2 Two-Color Real-Time PCR Detection System from Bio-Rad

Description:... The DNA Engine Opticon 2 real-time PCR detection system uses a fixed array of LEDs for fluorescence excitation (470-505 nm) and two photomultiplier tubes for 2-color detection (523-543 nm, 540-700 nm). The Opticon 2 system is built on an DNA Engine thermal cycler, which includes a thermal gradient...
Company:Bio-Rad

DNA Engine Opticon Real-Time PCR Detection System from Bio-Rad

Description:... The DNA Engine Opticon real-time PCR detection system uses a fixed array of LEDs for fluorescence excitation (450-495 nm) and a photomultiplier tube for fluorescence detection (515-545 nm). The Opticon system is built on an DNA Engine thermal cycler base, which includes a thermal gradient feat...
Company:Bio-Rad

VersArray ChipReader 5 m System from Bio-Rad

Description:..., enhanced weak signal detection, and virtually no photobleaching for a long dye lifetime. You also get real-time feedback on the effects of laser and photomultiplier tube adjustment on the signal-to-noise ratio and dynamic range. This valuable feedback increases productivity and minimizes the number of scans, thus ...
Company:Bio-Rad

FP-6500/6600 research-grade fluorescence spectrometers from JASCO

Description:...l of the FP-6500 which can be covered emission measurement of NIR region up to 1010 nm by using the holographic grating with 900 grooves/mm and R2658P photomultiplier tube for the emission monochromator. Spectral Slit Width: &nsbp;1, 3, 5, 10, 20, L5, L10 nm on both EX and EM monochromators monochromator ...
Company:JASCO

RF-5301 Fluorescence Spectrophotometer from Shimadzu

Description:... The essence of fluorescence analysis is sensitivity. The high throughput optical system in the RF-5301PC employs a blazed holographic grating, photomultiplier and digital signal processing to provide the highest level S/N ratio attainable....
Company:Shimadzu

InnoScan700 Microarray Scanner from INNOPSYS

Description:...ms of its sensitivity and signal-to-noise thanks to the association of a true pinhole confocal detection based on fast and extremely sensitive digital photomultiplier (PMT) and a dynamic autofocus system Background noise greatly reducted Immunization to substrate deformation and perfect scanning unif...
Company:INNOPSYS