Laser Testing & Training Naval Air Warfare Center Weapons Division
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Chapter 2 HISTORY and DEVELOPMENT of MILITARY LASERS
History and Development of Military Lasers Chapter 2 HISTORY AND DEVELOPMENT OF MILITARY LASERS JACK B. KELLER, JR* INTRODUCTION INVENTING THE LASER MILITARIZING THE LASER SEARCHING FOR HIGH-ENERGY LASER WEAPONS SEARCHING FOR LOW-ENERGY LASER WEAPONS RETURNING TO HIGHER ENERGIES SUMMARY *Lieutenant Colonel, US Army (Retired); formerly, Foreign Science Information Officer, US Army Medical Research Detachment-Walter Reed Army Institute of Research, 7965 Dave Erwin Drive, Brooks City-Base, Texas 78235 25 Biomedical Implications of Military Laser Exposure INTRODUCTION This chapter will examine the history of the laser, Military advantage is greatest when details are con- from theory to demonstration, for its impact upon the US cealed from real or potential adversaries (eg, through military. In the field of military science, there was early classification). Classification can remain in place long recognition that lasers can be visually and cutaneously after a program is aborted, if warranted to conceal hazardous to military personnel—hazards documented technological details or pathways not obvious or easily in detail elsewhere in this volume—and that such hazards deduced but that may be relevant to future develop- must be mitigated to ensure military personnel safety ments. Thus, many details regarding developmental and mission success. At odds with this recognition was military laser systems cannot be made public; their the desire to harness the laser’s potential application to a descriptions here are necessarily vague. wide spectrum of military tasks. This chapter focuses on Once fielded, system details usually, but not always, the history and development of laser systems that, when become public. Laser systems identified here represent used, necessitate highly specialized biomedical research various evolutionary states of the art in laser technol- as described throughout this volume. -
In-Processing in the Works for Weeks, Months Graduate Dies in Hill AFB F
Vol. 49 No. 25 June 26, 2009 In-processing in the works for weeks, months By Ann Patton blood pre-screening, said three months of Academy Spirit staff preparation went into in-processing day. Plans called for accumulating supplies like It was all ready, set, go for the arrival gloves and tubes and seeking out the 100 of the Class of 2013 Thursday. technicians who volunteered for the day. Preparations for the new cadets’ arrival “We want to make it as streamlined began weeks, sometimes months, before. as possible,” he said and pointed out the Cadet cadre were on the front line for day represents a unique Air Force mission. in-processing, and they were plenty ready. “No where else do we do this at this Cadet 2nd Class Nehemiah Bostick level,” he said. served as safety and medical NCO. This Seamstresses in the tailor shop in Sijan is his first Basic Cadet Training to be Hall were ready to sink needle and thread involved with. into the thousands of nametags as Training for cadre began in May when appointees stood by. participating cadets received “re-training” “We’re in pretty good shape,” said Ken for what goes into the BCT experiences. Rivera, shop supervisor. “We had a good So what did the cadre expect from all portion of the work done already, including the new faces on the Terrazzo? the Preparatory School.” “Nothing,” he said. “They come in Nametags are embossed on ribbons here not knowing anything, and that’s why in-house, and the process began months we’re here to teach them. -
A Laser (From the Acronym Light Amplification by Stimulated Emission of Radiation) Is an Optical Source That Emits Photons in a Coherent Beam
LASER A laser (from the acronym Light Amplification by Stimulated Emission of Radiation) is an optical source that emits photons in a coherent beam. The verb to lase means "to produce coherent light" or possibly "to cut or otherwise treat with coherent light", and is a back- formation of the term laser. Laser light is typically near-monochromatic, i.e. consisting of a single wavelength or color, and emitted in a narrow beam. This is in contrast to common light sources, such as the incandescent light bulb, which emit incoherent photons in almost all directions, usually over a wide spectrum of wavelengths. Laser action is explained by the theories of quantum mechanics and thermodynamics. Many materials have been found to have the required characteristics to form the laser gain medium needed to power a laser, and these have led to the invention of many types of lasers with different characteristics suitable for different applications. The laser was proposed as a variation of the maser principle in the late 1950's, and the first laser was demonstrated in 1960. Since that time, laser manufacturing has become a multi- billion dollar industry, and the laser has found applications in fields including science, industry, medicine, and consumer electronics. Contents [hide] 1 Physics 2 History 2.1 Recent innovations 3 Uses 3.1 Popular misconceptions 3.2 "LASER" 3.3 Scientific misconceptions 4 Laser safety 5 Categories 5.1 By type 5.2 By output power 6 See also 7 Further reading 7.1 Books 7.2 Periodicals 8 References 9 External links [edit] Physics See also: Laser science Principal components: 1. -
DIRECTED-ENERGY WEAPONS: Promise and Prospects
20YY SERIES | APRIL 2015 DIRECTED-ENERGY WEAPONS: Promise and Prospects By Jason D. Ellis About the Author Dr. Jason Ellis is a Visiting Senior Fellow with the Center for a New American Security, on leave from Lawrence Livermore National Laboratory. Also in this series “20YY: Preparing for War in the Robotic Age” by Robert O. Work and Shawn Brimley “Robotics on the Battlefield Part I: Range, Persistence and Daring” by Paul Scharre “Robotics on the Battlefield Part II: The Coming Swarm” by Paul Scharre “Between Iron Man and Aqua Man: Exosuit Opportunities in Maritime Operations” by Andrew Herr and Lt. Scott Cheney-Peters Acknowledgements The views expressed here are the author’s and may not reflect those of Lawrence Livermore National Laboratory, the National Nuclear Security Administration, the Department of Energy or any other depart- ment or agency of the U.S. government. The author would like to thank the many public- and private-sector professionals who graciously lent their time and expertise to help shape this report, and those at CNAS whose insights helped push it over the finish line. Any errors, omissions or other shortcomings nevertheless remain those of the author alone. CNAS does not take institutional positions. Designed by Melody Cook. Cover Images ARABIAN GULF (Nov. 16, 2014) The Afloat Forward Staging Base (Interim) USS Ponce (ASB(I) 15) conducts an operational demonstration of the Office of Naval Research (ONR)-sponsored Laser Weapon System (LaWS) while deployed to the Arabian Gulf. (U. (John F. Williams/U.S. Navy) DIRECTED-ENERGY WEAPONS: Promise and Prospects By Jason D. -
PHORONIDA from EUROPA
PHORONIDA from EUROPA This publication should be cited as : Emig C. C., Roldán C. & J. M. Viéitez, 1999, 2006. The Phoronida from the European coasts. http://paleopolis.rediris.es/Phoronida/. The Phoronida from the European coasts Christian C. EMIG 1, Carmen ROLDÁN 2 y José M. VIÉITEZ 3 1 Centre d'Océanologie, CNRS UMR 6540, Rue de la Batterie-des-Lions, 13007 Marseille (France) 2 Depto. de Biología Animal I, Facultad de Biología, Universidad Complutense, 28040 Madrid (Spain) 3 Depto. de Biología Animal, Facultad de Ciencias, Universidad de Alcalá, 28871 Alcalá de Henares (Spain) From data of recent ecological surveys on the European biodiversity (in the EU and adjacent waters), mainly in the south of the Iberian Peninsula, the Chafarinas Islands and Canary Islands, the number of phoronid species occuring in the European waters increased to 9: Lophophorata Phoronida Species NE Atlantic Ocean ** Mediterranean Sea Phoronis ovalis + + Phoronis hippocrepia + + Phoronis australis + + Phoronis ijimai Phoronis muelleri + + Phoronis psammophila + + Phoronis pallida + + Phoronopsis albomaculata + + Phoronopsis harmeri + + Phoronopsis californica + + ** including adjacent seas; i.e. Channel, North, Baltic... Thus, the Iberian Peninsula and the surrounding islands represent a privileged area as regards the phoronids because from the 10 valid described phoronid species, only Phoronis ijimai has not been recorded (species presently restricted to the Pacific and NW Atlantic), while P. ovalis has been cited on the French Mediterranean coast near the Spanish border. PHORONIDA from EUROPA Recent references Emig C. C., García Carrascosa A. M., Roldán C. & J. M. Viétiez, 1999. The occurrence in the Chafarinas Islands (S.E. Alboran Sea, western Mediterranean) of four species of Phoronida (Lophophorata) and their distribution in the north-eastern Atlantic and Mediterranean areas. -
Year When Laser Weapons Will Be Commonly Used by the Military?
FINNISH NATIONAL DEFENCE UNIVERSITY THE TECHNOLOGICAL MATURITY OF GROUND BASED DIRECTED ENERGY AIR DEFENCE SYSTEMS IN 2025-2030 Dissertation Captain Tuomas Pernu GSOC 58 August 2017 FINNISH NATIONAL DEFENCE UNIVERSITY Course Service Branch General Staff Officer Course 58 Air Force Author Captain Tuomas Pernu Title THE TECHNOLOGICAL MATURITY OF GROUND BASED DIRECTED ENERGY AIR DEFENCE SYSTEMS IN 2025-2030 Department Archived at Military Technology FNDU Library Date August 2017 Text pages 99 + 2 Appendices ABSTRACT Directed energy weapons (DEW) have been pursued by the military and defence industry since the 1980’s. Some potential technology demonstrators have been showcased over the decades but not until recently there have been a number of promising programmes. This dissertation was performed to find out what is the applicability of DEWs in the Ground Based Air Defence (GBAD) domain in 2025-2030. A thorough literature review was conducted to find answer to a sub-question: ‘What are the DE technologies and systems under development for AA (Anti-Aircraft) and CRAM (Counter Rockets Artillery Mortar)?’ It was established that there are 15 programmes in total of which 14 are laser and 1 is HPRF (High Power Radio Frequency) system. Next a Delphi panel was used to find answers for the second sub-question: ‘What is the maturity level of GBAD DEW in 2025-2030’. In total three Delphi iteration rounds were performed. This was followed by Technology Readiness Level (TRL) assessment done by utilizing USAF TRL calculator. Finally the results of literature review, Delphi and TRL assessment were combined and it was established that there are three potential GBAD systems to reach full technological maturity in 2021-2029 which could mean the systems would be commonly in use in 2025- 2035. -
Kelp Forest Monitoring Handbook — Volume 1: Sampling Protocol
KELP FOREST MONITORING HANDBOOK VOLUME 1: SAMPLING PROTOCOL CHANNEL ISLANDS NATIONAL PARK KELP FOREST MONITORING HANDBOOK VOLUME 1: SAMPLING PROTOCOL Channel Islands National Park Gary E. Davis David J. Kushner Jennifer M. Mondragon Jeff E. Mondragon Derek Lerma Daniel V. Richards National Park Service Channel Islands National Park 1901 Spinnaker Drive Ventura, California 93001 November 1997 TABLE OF CONTENTS INTRODUCTION .....................................................................................................1 MONITORING DESIGN CONSIDERATIONS ......................................................... Species Selection ...........................................................................................2 Site Selection .................................................................................................3 Sampling Technique Selection .......................................................................3 SAMPLING METHOD PROTOCOL......................................................................... General Information .......................................................................................8 1 m Quadrats ..................................................................................................9 5 m Quadrats ..................................................................................................11 Band Transects ...............................................................................................13 Random Point Contacts ..................................................................................15 -
THE ECE HERALD the Official ECE Newsletter Issue Date: 5Th November, 2019 LASER TECHNOLOGY Illuminator Lasers for Target Tracking
NIT ANDHRA PRADESH VOLUME 2 ISSUE 4 THE ECE HERALD The Official ECE Newsletter Issue date: 5th November, 2019 LASER TECHNOLOGY Illuminator Lasers for target tracking. It can destroy targets up to 600 km away. 4. Advanced Tactical Laser: ATL program is a US military program to mount a -Hariom Singh (611834) When lasers were first invented, they were called a solution looking for a high energy laser weapon on an aircraft. Used against ground targets in urban or problem. Everyone thought they were as cool as Bose-Einstein condensate, but other areas where minimizing collateral damage is important. The laser will be a no one quite knew what to do with these devices that could produce a highly 100 kilowatt-class chemical oxygen-iodine laser. On June 18, 2009, the ATL focused beam of light. Today, lasers have become one of the world's most was successfully fired in flight for the first time. important technologies, used in industries ranging from information technology In the Medical field to telecommunications, medicine, consumer electronics, law enforcement, 1. Laser Surgery: Lasers are used in surgery, particularly in eye surgery. Laser military equipment, entertainment, and manufacturing. A laser is a device that in-situ keratomileusis is a popular surgery used to correct vision in people who emits light through a process of optical amplification based on the stimulated are nearsighted, farsighted, or have astigmatism. All laser vision correction emission of electromagnetic radiation. It emits the light in one direction. The surgeries work by reshaping the cornea. first laser was built in 1960 by Theodore H. -
Phoronida (Phoronids)
■ Phoronida (Phoronids) Phylum Phoronida Number of families 1 Thumbnail description Sedentary, infaunal, benthic suspension-feeders with a vermiform (worm-like) body that bears a lophophore and is enclosed in a slender tube in which the animal moves freely and is anchored by an ampulla. Photo: A golden phoronid (Phoronopsis califor- nica) in Madeira (São Pedro, southeast coast, about 100 ft [30 m] depth) showing the helicoidal shape of the lophophore. (Photo by Peter Wirtz. Reproduced by permission.) Evolution and systematics its own coelom. A lophophore, defined as a tentacular extension The phylum Phoronida is known to have existed since the of the mesosome (and of its coelomic cavity, the mesocoelom) Devonian, but there is a poor fossil record of burrows and embraces the mouth but not the anus. The main functions of borings attributed to phoronids. Many scientists now regard the lophophore are feeding, respiration, and protection. The the Phoronida as a class within the phylum Lophophorata, site and shape of the lophophore are proportional to body size, along with the Brachiopoda and perhaps the Bryozoa. Phor- ranging from oval to horseshoe to helicoidal in relation to an onida consists of two genera, Phoronis and Phoronopsis, which increase in the number of tentacles. Phoronids have a U-shaped are characterized by the presence of an epidermal collar fold digestive tract. A nervous center is present between the mouth at the base of the lophophore. The group takes its name from and anus, as is a ring nerve at the base of the lophophore, and the genus name Phoronis, one of the numerous epithets of the the animal has one or two giant nerve fibers. -
Experimental Design of a UCAV-Based High-Energy Laser Weapon
Calhoun: The NPS Institutional Archive Theses and Dissertations Thesis and Dissertation Collection 2016-12 Experimental design of a UCAV-based high-energy laser weapon Lionis, Antonios Monterey, California: Naval Postgraduate School http://hdl.handle.net/10945/51574 NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS EXPERIMENTAL DESIGN OF A UCAV-BASED HIGH- ENERGY LASER WEAPON by Antonios Lionis December 2016 Thesis Advisor: Keith R. Cohn Co-Advisor: Eugene Paulo Approved for public release. Distribution is unlimited. THIS PAGE INTENTIONALLY LEFT BLANK REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704–0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188) Washington, DC 20503. 1. AGENCY USE ONLY 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED (Leave blank) December 2016 Master’s thesis 4. TITLE AND SUBTITLE 5. FUNDING NUMBERS EXPERIMENTAL DESIGN OF A UCAV-BASED HIGH- ENERGY LASER WEAPON 6. AUTHOR(S) Antonios Lionis 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING Naval Postgraduate School ORGANIZATION REPORT Monterey, CA 93943-5000 NUMBER 9. SPONSORING /MONITORING AGENCY NAME(S) AND 10. SPONSORING / ADDRESS(ES) MONITORING AGENCY N/A REPORT NUMBER 11. -
Documenting Neotropical Diversity of Phoronids with DNA Barcoding of Planktonic Larvae
Received: 30 April 2018 | Revised: 25 January 2019 | Accepted: 17 February 2019 DOI: 10.1111/ivb.12242 ORIGINAL ARTICLE Documenting neotropical diversity of phoronids with DNA barcoding of planktonic larvae Rachel Collin1 | Dagoberto E. Venera‐Pontón1 | Amy C. Driskell2 | Kenneth S. Macdonald2 | Kit‐Yu Karen Chan3 | Michael J. Boyle4 1Smithsonian Tropical Research Institute, Balboa, Ancon, Panama Abstract 2Laboratories of Analytical Biology, National Phoronid larvae, actinotrochs, are beautiful and complicated organisms which have Museum of Natural History, Smithsonian attracted as much, if not more, attention than their adult forms. We collected acti‐ Institution, Washington, DC 3Division of Life Science, The Hong Kong notrochs from the waters of the Pacific and Caribbean coasts of Panama, and used University of Science and Technology, Clear DNA barcoding of mtCOI, as well as 16S and 18S sequences, to estimate the diversity Water Bay, Hong Kong of phoronids in the region. We discovered three operational taxonomic units (OTUs) 4Smithsonian Marine Station, Fort Pierce, Florida in the Bay of Panama on the Pacific coast and four OTUs in Bocas del Toro on the Caribbean coast. Not only did all OTUs differ from each other by >10% pairwise dis‐ Correspondence Rachel Collin, Smithsonian Tropical tance in COI, but they also differed from all phoronid sequences in GenBank, includ‐ Research, Institute, Unit 9100, Box 0948, ing the four species for which adults have been reported for the Pacific of Panama, DPO AA 34002, USA Email: [email protected] Phoronopsis harmeri, Phoronis psammophila, Phoronis muelleri, and Phoronis hippocre‐ pia. In each ocean region, one common OTU was more abundant and occurred more Present Address Kit‐Yu Karen Chan, Biology frequently than other OTUs in our samples. -
WEST COAST SPECIES of the PHYLUM PHORONIDA The
WEST COAST SPECIES OF THE PHYLUM PHORONIDA The following seven species of phoronid adults are known from southern and central California: Phoronis architecta Phoronopsis californica % Phoronis muelleri - 3G-5CV Phoronopsis harmeri Phoronis pallida ^Phoronis psammophila Phoronis vancouverensis With the exception of Phoronis muelleri the larvae of the above are also well known here. An additional nearly cosmopolitan species Phoronis ovalis occurs in Washington and two additional widely distributed species Phoronis australis and Phoronis hippocrepia are reported from our east coast. Two further "larval species" occur in southern California, a third such form is known from Hawaii, and there may be at least two additional unidentified larvae from east coast waters. There are no described adults to match with these larval forms, so additional adult forms await discovery and description. Two additional species names may be familiar to California workers: Phoronopsis viridis is now considered a synonym of Phoronopsis harmeri and Phoronis pacifica has never been identified since the inadequate type description The Genus Phoronis Members of this genus lack the epidermal fold known as the collar which is located at the base of the lophophore in members of the only other genus Phoronopsis. Although inconsequential and sometimes inconspicuous, the collar is the only morphological feature separating the genera. Adults of the genus Phoronis are usually smaller than those of Phoronopsis Phoronis ovalis: Not yet described from southern California, but probably here. Positive identification is easy since species is diminutive (usually less than 1 cm in length), with only about 24 tentacles which are arranged in a slightly indented circle. Burrows within calcareous substrates (limestone, mollusc shells, barnacles) in which it forms aggregations by asexual budding.