*  Particle accelerator - Wikipedia
... in the magnetic field causes the high energy electrons to emit extremely bright and coherent beams of high energy photons via ... Linear high-energy accelerators use a linear array of plates (or drift tubes) to which an alternating high-energy field is ... Due to the high voltage ceiling imposed by electrical discharge, in order to accelerate particles to higher energies, ... For some applications, it is useful to store beams of high energy particles for some time (with modern high vacuum technology, ...
  https://en.wikipedia.org/wiki/Particle_accelerator
*  Basic Physics of Nuclear Medicine/Scintillation Detectors - Wikibooks, open books for an open world
It consists of a high voltage supply, a resistor divider chain and a load resistor, RL. The high voltage supply generates a dc ... m: number of light photons produced in crystal. *k: optical efficiency of the crystal, that is the efficiency with which the ... A high quality (and more expensive!) detector will have a narrower statistical spread in the photopeaks which it measures. ... One circuit is called a Lower Level Discriminator which only allows voltages pulses through it which are higher than its ...
  https://en.wikibooks.org/wiki/Basic_Physics_of_Nuclear_Medicine/Scintillation_Detectors
*  WE-B-137-01: Plastic Scintillation Detectors: Present Status and Their Application for Quality Assurance and in Vivo Dosimetry....
... will provide a brief overview of the dosimetric characteristics and properties of PSDs when exposed to high-energy photon beams ... high spatial resolution and nanosecond fast response time. Therefore, these detectors do not require the usual conversion and/ ... have many properties that make them ideal for dosimetry including water equivalence and energy independence for MV photons, ... On the use of a single-fiber multipoint plastic scintillation detector for 192 Ir high-dose-rate brachytherapy.. *François ...
  https://www.semanticscholar.org/paper/WE-B-137-01-Plastic-Scintillation-Detectors-Presen-Beddar-Beaulieu/61c95f5201a2f8429a85aeaf56488f94310a1cac
*  Acerra Series Multiphoton Microscopes : Acerra Series Multiphoton Microscopes
One or Two Independent Scan Paths Enable High-Speed Imaging, High-Resolution Imaging, and Photoactivation Studies ... optics to be specifically optimized for laser scanning with a near-infrared beam and maximal collection of the two-photon ... measurements and their applications from the table tops of research laboratories to standard use in communication and high ...
  http://www.aitc-group.com/alahram2/index.php/products/imaging/microscopy-systems/life-science-microscopy/acerra-series-multiphoton-microscopes-detail
*  Elastic Photoproduction of J/psi Vector Mesons at high Photon-Proton Centre-of-Mass Energy at the H1 Experiment at HERA
... ... Elastic Photoproduction of J/psi Vector Mesons at high Photon-Proton Centre-of-Mass Energy at the H1 Experiment at HERA ... Janauschek, Ludger (2005): Elastic Photoproduction of J/psi Vector Mesons at high Photon-Proton Centre-of-Mass Energy at the H1 ... The exponential slope b of the differential cross section dsigma/dt~e^{-b,t,} is determined in the high W_{gamma p} regime: b(, ...
  https://edoc.ub.uni-muenchen.de/3063/index.html
*  Positron annihilation spectroscopy using high-energy photons - Butterling - 2009 - physica status solidi (a) - Wiley Online...
If you are a society or association member and require assistance with obtaining online access instructions please contact our Journal Customer Services team ...
  http://onlinelibrary.wiley.com/doi/10.1002/pssa.200925340/pdf
*  The Journey of High-Energy Photons in Blazar Jets | TAC Seminar
Learn about the past The Journey of High-Energy Photons in Blazar Jetsgiven by Lorenzo Sironi (Harvard). The event was held Mar ... We investigate the origin and the fate of high-energy photons in blazar jets, by means of first-principles particle-in-cell ( ... 10-100 GeV photons -- or heats the IGM via collective plasma instabilities. The astrophysical stakes are very high because of ... TeV photons from blazars will interact in the intergalactic medium (IGM) with the extragalactic background light, producing a ...
  http://astro.berkeley.edu/event/2016-03-04/the-journey-of-high-energy-photons-in-blazar-jets
*  LIGA and LIGA-like processing with high energy photons | Springer for Research & Development
... in the present case photons near 20,000 eV, can be used in LIGA-like processing. Heating problems with this type of photon flux ... PMMA High Energy Photon Absorption Length PMMA Layer Transmission Filter These keywords were added by machine and not by the ... High energy X-rays, in the present case photons near 20,000 eV, can be used in LIGA-like processing. Heating problems with this ... The exposure of PMMA with high energy photons leads to cost effective exposures with full cost recovery estimates of $0.10 per ...
  https://rd.springer.com/article/10.1007/BF02739549
*  World's record for highest freq photon ever seen, nature or lab? | Physics Forums - The Fusion of Science and Community
Hi all,. What is the highest frequency photon ever seen, whether in nature or the lab? This is based on an earlier post of mine ... Since E=hf, there is no maximum freq or energy of a photon, it seems, on a max freq of a photon.. It seems that such high ... I can't find a record of photon energies higher than the TeV energy photons PAllen referred to. ... What is the highest freq photon that can be generated at the center of our galaxy?. But, since the center of our galaxy is ...
  https://www.physicsforums.com/threads/worlds-record-for-highest-freq-photon-ever-seen-nature-or-lab.686764/
*  High Resolution Photon Timing with MCP-PMTs: A Comparison of a Commercial Constant Fraction Discriminator (CFD) with the ASIC...
High Resolution Photon Timing with MCP-PMTs: A Comparison of a Commercial Constant Fraction Discriminator (CFD) with the ASIC- ... Breton, D.; /Orsay, LAL; Delagnes, E.; /DAPNIA, Saclay; Maalmi, J.; /Orsay, LAL et al. High Resolution Photon Timing with MCP- ...
  https://digital.library.unt.edu/ark:/67531/metadc1013687/
*  Comparison between AAPM's TG-21 and TG-51 clinical reference protocols for high-energy photon and electron beams
... Public ... has published several national dosimetry protocols for the calibration of high-energy photon and electron beams. In this study ... for 6 and 18 MV photon beams, respectively. Absorbed dose-to-water determined according to TG-21 and TG-51 protocols for 16 MeV ... TG-21 and TG-51 protocols was done by determining the radiation dose rate at a designated distance for 6 and 18 MV photon beams ...
  https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/n296x191v?locale=en
*  Motorola PHOTON Q 4G LTE Dual Micro High Current Car Charger (Polycarbonate Car Chargers) - Rapid charging, high-current PHOTON...
Motorola PHOTON Q 4G LTE Accessories by BoxWave ... Motorola PHOTON Q 4G LTE Dual Micro High Current Car Charger - ... miniSync - Motorola PHOTON Q 4G LTE. DirectSync Cable - Motorola PHOTON Q 4G LTE. Charger Changer - Motorola PHOTON Q 4G LTE. ... Rejuva Duo - Motorola PHOTON Q 4G LTE. Dual High Current Wall Charger - Motorola PHOTON Q 4G LTE. Rejuva Power Pack Compact - ... Motorola PHOTON Q 4G LTE Accessories. :. PHOTON Q 4G LTE Car Chargers. :. Dual Micro High Current Car Charger. ...
  http://www.boxwave.com/motorola-photon-q-4g-lte-car-chargers/motorola-photon-q-4g-lte-dual-micro-high-current-car-charger/bwpdd/fkvc-zvwg/
*  Evolving CMOS Technology for High-Performance Single-Photon Detection | Optics & Photonics News
Evolving CMOS Technology for High-Performance Single-Photon Detection. Edoardo Charbon. For decades, solid-state detectors ... Issues / 2011 / May 2011 / Evolving CMOS Technology for High-Performance Single-Photon Detection ... So-called single-photon avalanche diodes (SPADs) are avalanche photodiodes biased above breakdown in Geiger mode and fabricated ... could capture individual photons. This is now possible to do using avalanche photodiodes. ...
  https://www.osa-opn.org/home/articles/volume_22/issue_5/departments/optical_engineering/performance_single-photon_detection/
*  Evaluation of absorbed dose protocols used in high energy photon therapy for Hegazy Ehab Abd El -Rahim Abd El -Fattah
Evaluation of absorbed dose protocols used in high energy photon therapy for Hegazy Ehab Abd El -Rahim Abd El -Fattah ... Evaluation of absorbed dose protocols used in high energy photon therapy for Hegazy Ehab Abd El -Rahim Abd El -Fattah * ... Evaluation of absorbed dose protocols used in high energy photon therapy for Hegazy Ehab Abd El -Rahim Abd El -Fattah Author(S) ... Evaluation of absorbed dose protocols used in high energy photon therapy for Hegazy Ehab Abd El -Rahim Abd El -Fattah ...
  http://www.philadelphia.edu.jo/newlibrary/eng/english-books/671-english-books/57416-engb-57416
*  Search for nonstandard Higgs bosons using high mass photon pairs in p(p)over-bar -|gamma gamma+2 jets at root s=1.8 TeV
Search for nonstandard Higgs bosons using high mass photon pairs in p(p)over-bar -,gamma gamma+2 jets at root s=1.8 TeV. ... Search for nonstandard Higgs bosons using high mass photon pairs in p(p)over-bar -,gamma gamma+2 jets at root s=1.8 TeV. ... With the requirement of two high transverse energy photons and two jets, the diphoton mass (m(gamma gamma)) distribution is ...
  https://kuscholarworks.ku.edu/handle/1808/1557
*  OSA | Two-Photon Microscopy with High Depth of Field Using an Axicon
Two-Photon Microscopy with High Depth of Field Using an Axicon Pascal Dufour, Nathalie McCarthy, and Yves De Koninck ... P. Dufour, N. McCarthy, and Y. De Koninck, "Two-Photon Microscopy with High Depth of Field Using an Axicon," in Conference on ... Example: (photons AND downconversion) - pump [search contains both "photons" and "downconversion" but not "pump"] ... This optical component can provide a focal line with a good transverse resolution and a high depth of field that speeds up data ...
  https://www.osapublishing.org/abstract.cfm?uri=CLEO-2005-CWP4
*  Carbon Ions Boost Followed by Pelvic Photon Radiotherapy for High Risk Prostate Cancer - Full Text View - ClinicalTrials.gov
Carbon Ions Boost Followed by Pelvic Photon Radiotherapy for High Risk Prostate Cancer. This study is ongoing, but not ... Carbon Ions Boost Followed by Pelvic Photon Radiotherapy for High Risk Prostate Cancer. ... The aim of this research project is to test the feasibility and safety of a new treatment schedule for high risk prostate ... The treatment will include a boost phase on the whole prostate with carbon ions performed at CNAO followed by a pelvic photon ...
  https://clinicaltrials.gov/ct2/show/NCT02672449
*  A MONTE CARLO CALCULATION OF THE THREE-DIMENSIONAL DEVELOPMENT OF HIGH- ENERGY ELECTRON-PHOTON CASCADE SHOWERS - Digital Library
A description is given of a general-purpose Morte Carlo program for study of the three-dimensional development of high-energy ... eiectron-photon cascade showers in a homogeneous medium. The results of several study calcuiations are compared with previous ... Zerby, C.D. & Moran, H.S. A MONTE CARLO CALCULATION OF THE THREE-DIMENSIONAL DEVELOPMENT OF HIGH- ENERGY ELECTRON-PHOTON ... A MONTE CARLO CALCULATION OF THE THREE-DIMENSIONAL DEVELOPMENT OF HIGH- ENERGY ELECTRON-PHOTON CASCADE SHOWERS ...
  https://digital.library.unt.edu/ark:/67531/metadc1029918/
*  Experimental high fidelity six-photon entangled state for telecloning protocols
... Rådmark, Magnus Stockholm University, Faculty ... The setup is very stable and weobserve the six-photon state with high fidelity. The observed state can be usedfor ... The qubits were implemented in the polarisation degree of freedom of single photons. We emphasise that one type of states that ... To our knowledge, the achieved fidelity is the highest that has been observed for six-qubit entangled states and our ...
  http://su.diva-portal.org/smash/record.jsf?pid=diva2:282276
*  Irradiation of pyrimidine in pure H2O ice with high-energy ultraviolet photons. - Semantic Scholar
... with high-energy UV photons provided by a synchrotron source in three different ranges: the 0(th) order light (4.1-49.6 eV, 25- ... hypothesis is in agreement with recent laboratory studies of irradiation of pyrimidine in H2O-rich ices with vacuum UV photons ... support a scenario in which compounds of biological interest can be formed and survive in environments subjected to high-energy ... Irradiation of pyrimidine in pure H2O ice with high-energy ultraviolet photons.. *. Michel Nuevo. , Yu-Jung Chen. , +7 authors ...
  https://www.semanticscholar.org/paper/Irradiation-of-pyrimidine-in-pure-H2O-ice-with-hig-Nuevo-Chen/46e763fbd2e4707aeaefb4a5729863c25d54e29e
*  "High p(T) direct photon and pi(0) triggered azimuthal jet correlations" by Andrew Adare, Nathan C. Grau et al.
10 Gev/c with high pT direct photons and pi(0) mesons in the range 5, p(T) , 15 Gev/c are used to study jet fragmentation in ... The shape of the direct photon-associated hadron spectrum as well as its charge asymmetry are found to be consistent with a ... No significant evidence of fragmentation photon correlated production is observed within experimental uncertainties. ... "High p T direct photon and π 0 triggered azimuthal jet correlations and measurement of k T for isolated direct photons in p+ p ...
  https://lib.dr.iastate.edu/physastro_pubs/286/
*  Widefield Two-Photon Excitation without Scanning: Live Cell Microscopy with High Time Resolution and Low Photo-Bleaching. |...
Widefield Two-Photon Excitation without Scanning: Live Cell Microscopy with High Time Resolution and Low Photo-Bleaching.. [ ... This method, which requires no costly additions to the microscope, promises to be useful for work where high time-resolution is ... We demonstrate fluorescence imaging by two-photon excitation without scanning in biological specimens as previously described ... we have observed greatly reduced photo-bleaching in comparison with single-photon excitation. ...
  http://www.sigmaaldrich.com/catalog/papers/26824845
*  Super-high sensitivity systems for detection and spectral analysis of ultraweak photon emission from biological cell cells and...
Ultraweak photon emission bioluminescence chemiluminescence super-high sensitivity photon counting technique photon counting ... Super-high sensitivity systems for detection and spectral analysis of ultraweak photon emission from biological cell cells and ... and special analysis incorporated with the super-high senstivity photon counting method for the study of ultraweak photon ... Development of an ultra-high sensitive photon counting system and its application to biomedical measurements. Opt. Lasers in ...
  https://link.springer.com/article/10.1007%2FBF01953302