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Carl B. Collins


Click on the titles below to find US government-authored or -collected reports written by Carl B. Collins

Total Results: 43 Results per page:
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Lifetime and Longevity of an Intense, Photoconductivity - Switched Stacked Blumlein Modulator for Ultra - Wideband HPM Applications 28 JUL 2003 58 pages
Authors:  Carl B. Collins; Farzin Davanloo; TEXAS UNIV AT DALLAS RICHARDSON CENTERFOR QUANTUM ELECTRONICS
The full text of this report is available for sale.In this work, experiments with the stacked Blumlein prototype pulsers were conducted under different conditions of operation at power levels bypassing 100 MW. Special attention was placed on broadening of the current channels in the avalanche photoconductive switch in order to improve lifetime. The mechanical and semiconductor properties of amorphic diamond were employed to improve the lifetime by coating the switch cathode or anode areas or both. Issues concerning the ...


Lifetime and Longevity of an Intense, Photoconductively - Switched Stacked Blumlein Modulator for Ultra-Wideband HPM Applications 30 APR 2003 60 pages
Authors:  Carl B. Collins; Farzin Davanloo; TEXAS UNIV AT DALLAS RICHARDSON
The full text of this report is available for sale.In this work, experiments with the stacked Blumlein prototype pulsers were conducted under different conditions of operation at power levels bypassing 100 MW. Special attention was placed on broadening of the current channels in the avalanche photoconductive switch in order to improve lifetime. The mechanical and semiconductor properties of amorphic diamond were employed to improve the lifetime by coating the switch cathode or anode areas or both. Issues concerning the ...


Research on Intense Pulsed Power for Electromagnetic Radiation 10 DEC 2001 24 pages
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS
The full text of this report is available for sale.Nuclear spin isomers store electromagnetic energy at densities reaching 1.3 GJ/g for shelf lives approaching centuries. One example, Hf-178 has been shown to release such stored energy when triggered by x-ray flashes at modest power levels. In this work trigger pulses were derived from a familiar x- ray source typically used in dental medicine. Subsequent experiments using tunable x-rays from the synchrotron radiation source, SPring-8 showed that the triggering was ...


(New World Vistas) Research on Intense, Photoconductively-Switched Stacked Blumlein Modulators to Supply Ultra-Wideband HPM Systems 30 APR 2000 81 pages
Authors:  Carl B. Collins; Farzin Davanloo; TEXAS UNIV AT DALLAS RICHARDSON CENTERFOR QUANTUM ELECTRONICS
The full text of this report is available for sale.In this work, Several photoconductively- switched stacked Blumlein prototype were developed and successfully tested at power levels approaching 100 MW. These devices had a compact geometry and commutated by a single avalanche photoconductive switch. Special attention was placed on broadening of the switch current channels. Device longevity was tested by fabricating switch with metal or diamond coatings and by implementing different switch/electrode configurations. A significant ...


Progress in the Production of Samples of Gamma Ray Laser Candidate Materials 15 APR 96 19 pages
Authors:  Carl B. Collins; GENERAL COHERENT TECHNOLOGY INC RICHARDSON TX
The full text of this report is available for sale.Studies of the 29 possible candidates to use as the working medium of a gamma ray laser have identified the 31-year isomer of Hafnium-178 as the best. This research was aimed at the development of a production cycle for this rare substance. A major success of this work was the discovery in byproduct debris from the synthesis of medical isotopes of a quantity of this material equal to 99% of ...


The Demonstration of the Feasibility of the Tuning and Stimulation of Nuclear Radiation 31 OCT 91 48 pages
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is available for sale.This project concerns the demonstration of the feasibility of the tuning and perhaps even stimulation of nuclear radiation. Theory has indicated that anti-Stokes Raman upconversion of intense but conventional long wavelength sources of radiation produced by scattering from isomeric states of nuclear excitation could lead to significant sources of tunable Gamma-radiation characterized by the natural Mossbauer widths of the lines. This would result in lines with sub-Angstrom wavelengths and widths ...


The Demonstration of the Feasibility of the Tuning and Stimulation of Nuclear Radiation 01 SEP 90
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS AND APPLICATIO NS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This project concerns the demonstration of the feasibility of the tuning and perhaps even stimulation of nuclear radiation. Theory has indicated that anti-Stokes Raman upconversion of intense but conventional long wavelength sources of radiation produced by scattering from isomeric states of nuclear excitation could lead to significant sources of tunable gamma-radiation characterized by the natural Mossbauer widths of the lines. This would result in lines with sub-Angstrom wavelengths and widths ...


Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser MAR 90
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Contents: Thermal Economy of a Gamma-Ray Laser; Photoexcitation of Nuclear Isomers by (Gamma, Gamma') Reactions; Adaptation of a Fixed Energy Electron Accelerator to Produce Variable Endpoint Bremsstrahlung; Determination of Gateway States in 197Au with a Compton X-Ray Spectrometer; Calibration of Pulsed Bremsstrahlung Spectra with Photonuclear Reactions of 77Se and 79Br; Scaling to High Average Powers of a Flash X-Ray Source Producing Nanosecond Pulses; Frequency Modulation Spectrometer for Mossbauer Studies; Calibration ...


The Gamma-Ray Laser Project OCT 89
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Recent approaches to the problem of the gamma-ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wavelength radiation. At the nuclear level the storage of energy can approach tera-Joules per liter for thousands of years. However, any plan to use such a resource for a gamma-ray laser poses problems of a broad interdisciplinary nature requiring the fusion of concepts taken from relatively unrelated field ...


The Demonstration of the Feasibility of the Tuning and Stimulation of Nuclear Radiation. Gamma Ray Laser 01 SEP 89
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS AND APPLICATIO NS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This project concerns the demonstration of the feasibility of the tuning and perhaps even stimulation of nuclear radiation. Theory has indicated that anti-Stokes Raman upconversion of intense but conventional long wavelength sources of radiation produced by scattering from isomeric states of nuclear excitation could lead to significant sources of tunable gamma radiation characterized by the natural Mossbauer widths of the lines. This would result in lines with sub-Angstrom wavelengths and ...


Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser JUL 89 62 pages
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is available for sale.Recent approaches to the problem of the gamma-ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wavelength radiation. At the nuclear level the storage of energy can approach tera-Joules per liter for thousands of years. However, any plan to use such a resource for a gamma-ray laser poses problems of a broad interdisciplinary nature requiring the fusion of concepts taken from relatively unrelated fields ...


Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser JUN 89
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This report continues to focus upon our approach that is the nuclear analog to the ruby laser. It embodies the simplest concepts for a gamma-ray laser and not surprisingly, the greatest rate of achievement in the quest for a subAngstrom laser continues in that direction. For ruby the identification and exploitation of a band width funnel were the critical keys in the development of the first laser. There was a ...


Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser APR 89
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Recent approaches to the problem of the gamma-ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wave length radiation. At the nuclear level the storage of energy can approach tera-Joules 10 to the 12th power per liter for thousands of years. This report focuses on an approach to the gamma-ray laser that depends upon incoherent pumping. This nuclear analog of the ruby laser embodies ...


Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser JAN 89
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Recent approaches to the problem of the gamma-ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wavelength radiation. At the nuclear level the storage of energy can approach tera-Joules (1012J) per liter for thousands of years. However, any plan to use such a resource for a gamm-ray laser poses problems of a broad interdisciplinary nature requiring the fusion of concepts taken from relatively unrelated ...


The Demonstration of the Feasibility of the Tuning and Stimulation of Nuclear Radiation 31 OCT 88
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A major effect was found that had defied the constructi on of a completely satisfactory explanation in terms involving only conventional processes of incoherent excitation. It was the generation of radiofrequency sidebands on the hyperfine Moessbauer spectra of Fe57 in ferromagnetic environments. Through the application to a ferromagnetic iron foil of a magnetic field oscillating at radiofrequencies, several new spectral lines were produced in addition to the usual six hyperfine ...


Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser OCT 88 142 pages
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is available for sale.This report focuses upon a breakthrough recently realized along the more complex direction toward the coherent pumping of a gamma-ray laser. The intent is to mix the quantum properties of long-lived nuclear states with those able to radiate freely. In this way the metastability of an isomeric state could be switched off. The critical experiment is to show that some laboratory level of coherent input power can affect the properties ...


Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser JUN 88
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Recent approaches to the problem of the gamma-ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wavelength radiation. At the nuclear level the storage of energy can approach tera-Joules (10 to the 12th power J) per liter for thousands of years. However, any plan to use such a resource for a gamma-ray laser poses problems of a broad interdisciplinary nature requiring the fusion of ...


Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser APR 88
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Recent approaches to the problem of the gamma-ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wavelength radiation. At the nuclear level the storage of energy on approach teraJoules per liter for thousands of years. This report focuses upon the nuclear analog of the optical double resonance method which produced much of the database at the molecular level that was of such essential use ...


Demonstration of the Feasibility of the Tuning and Stimulation of Nuclear Radiation 31 JAN 88
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This project concerns the demonstration of the feasibility of the tuning and perhaps even stimulation of nuclear radiation. Theory has indicated that anti-Stokes Raman unconversion of intense but conventional long wavelength sources of radiation produced by scattering from isomeric states of nuclear excitation could lead to significant sources of tunable gamma-radiation characterized by the natural Mossbauer widths of the lines. This would result in lines with sub-Angstrom wavelengths and widths ...


Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser JAN 88 62 pages
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS CENTER FOR QUANTUM ELECTRONICS
The full text of this report is available for sale.Recent approaches to the problem of the gamma ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wavelength radiation. At the nuclear level the storage of energy can approach tera-Joules per liter for thousands of years. This report focuses upon the nuclear analog of the optical double resonance methods which produced much of the database at the molecular level that was of such essential ...


Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser OCT 87 113 pages
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS AND APPLICATIO NS
The full text of this report is available for sale.Recent approaches to the problem of the gamma ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wavelength radiation. At the nuclear level the storage of energy can approach tera-Joules per liter for thousands of years. Any plan to use such a resource for a gamma ray laser poses problems requiring the fusion of concepts taken from relatively unrelated fields of physics. An approach ...


The Gamma-Ray Laser Project JUL 87
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS AND APPLICATIO NS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Recent approaches to the problem of the gamma-ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wavelength radiation. At the nuclear level the storage of energy can approach tera-Joules (10 to the 12tj power J) per liter for thousands of years. However, any plan to use such a resource for a gamma-ray laser poses problems of a broad interdisciplinary nature requiring the fusion of ...


Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser JUN 87
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS AND APPLICATIONS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Recent approaches to the problem of the gamma-ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wavelength radiation. At the nuclear level the storage of energy can approach tera-Joules (10 to the 12th power) per liter for thousands of years. However, any plan to use such a resource for a gamma-ray laser poses problems of a broad interdisciplinary nature requiring the fusion of concepts ...


Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser APR 87
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS AND APPLICATIONS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Recent approaches to the problem of the gamma-ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wavelength radiation. At the nuclear level the storage of energy can approach tera-joules. 10 to the 12th power J per liter for thousands of years. However, any plan to use such a resource for a gamma-ray laser poses problems of a broad interdisciplinary nature requiring the fusion of ...


Demonstration of the Feasibility of the Tuning and Stimulation of Nuclear Radiation 31 JAN 87
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS AND APPLICATIONS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This project concerns the demonstration of the feasibility of the tuning and perhaps even stimulation of nuclear radiation. Theory has indicated that anti-Stokes Raman upconversion of intense but conventional long wavelength sources of radiation produced by scattering from isomeric states of nuclear excitation could lead to significant sources of tunable gamma-radiation characterized by the natural Mossbauer widths of the lines. This would result in lines with sub Angstrom wavelengths and ...


The Gamma-Ray Laser Project: Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser JAN 87
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS AND APPLICATIONS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Recent approaches to the problem of the gamma-ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wavelength radiation. At the nuclear level the storage of energy can approach tera-Joules (10 to the 12th power J) per liter for thousands of years. However, any plan to use such a resource for a gamma-ray laser poses problems of a broad interdisciplinary nature requiring the fusion of ...


Expansion of Research on the Tuning and Stimulation of Nuclear Radiation 15 OCT 86
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS AND APPLICATIONS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This contract supported a critical phase of an ongoing project having the objective of determining the feasibility and means of realizing a gamma-ray laser. Previous work had served to establish that a gamma-ray laser is feasible if a certain combination of elementary properties can be found in a real nuclear material. Traditional technology could not support the evaluation of these laser-like properties of nuclei and new methodologies had to be ...


Activities of the International Laser Science Conference (1st) Held on 18-22 November, 1985 at Dallas, Texas SEP 86
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Because of the high standards imposed by the Organizing and Program Committees upon the acceptance of papers, this conference provided an optimal format for the dissemination of results in laser science among workers in the field, many of whom are Army Contractors. A compact and profound perception was presented of the state of the art which lies at the nucleus of many applications that are also on interest to the ...


The Demonstration of the Feasibility of the Tuning and Stimulation of Nuclear Radiation 31 JAN 86
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS AND APPLICATIONS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This project concerns the demonstration of the feasibility of the tuning and perhaps even stimulation of nuclear radiation. Theory has indicated that anti-Stokes Raman upconversion of intense but conventional long wavelength sources of radiation produced by scattering from isomeric states of nuclear excitation could lead to significant sources of tunable gamma-radiation characterized by the natural Mossbauer widths of the lines. This would result in lines with sub-Angstrom wavelengths and widths ...


Gaseous Electronics Conference (35th) Held at Dallas, Texas, 19-22 October 1982 31 DEC 1982
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This Conference is sponsored each year by the Division of Electron and Atomic Physics of the American Physical Society, and was hosted this year by UTD. One hundred forty-four papers were presented in 19 sessions. Two workshops were held, one devoted to Atomic and Molecular Collisions Processes in Dense Plasmas and the other to Chemical Processes in Planetary Atmospheres.


Blue-Green Laser Output from N(+2) and XeF 30 DEC 1981
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The objective of this work was to determine the feasibility of developing, first the helium nitrogen charge transfer laser, and later the XeF laser into efficient scalable devices excited by preionized discharges for the production of blue-green outputs. The performance and scalability of the N2(+) laser pumped by charge transfer from He2(+) was determined in such a discharge environment. The gain and saturation parameters were measured and a regenerative amplifier ...


Charge Transfer Pumping of the Helium Nitrogen Laser at Atmospheric Pressures in an Electrical Avalanche Discharge. 31 OCT 1977
Authors:  Carl B. Collins; J. M. Carroll; K. N. Taylor; TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.An Atmospheric Electrical Avalanche (AEA) laser, stabilized by displacement current preionization, has been developed to support the study of the collisional pumping of the N2(+), B yields X, electronic transition by the kinetic step He2(+) + N2 + He yields N2+(B 2 Sigma sub u) + 3He. With proper preionization, the AEA laser has been operated at a PRF of 1 to 30 Hz in an avalanche mode at 100 ...


The Nitrogen Ion Laser. 31 MAR 1977
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The characterization and thermal scaling of the nitrogen ion laser pumped by charge transfer from He2(+) is reported in this work. Intense laser emission in the violet at 427 nm has been observed and found to have a linewidth less than 0.3A. The pumping ion, He2(+), was produced by discharge of a fast-pulsed electron beam gun, APEX-1, into several atmospheres of a mixture of helium and nitrogen. Excitation current densities ...


The Nitrogen Ion Laser. 30 JUN 1976
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The characterization and thermal scaling of the nitrogen ion laser pumped by charge transfer from He(3+) is reported in this work. Intense laser emission in the violet at 427 nm has been observed and found to have a linewidth less than 0.3 A. The pumping ions, He(2+) and He(3+), were produced by discharge of a fast-pulsed electron beam gun, APEX-1, into several atmospheres of a mixture of helium and nitrogen. ...


The Nitrogen Ion Laser. 31 DEC 1975
Authors:  Carl B. Collins; TEXAS UNIV AT DALLAS RICHARDSON
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The characterization and thermal scaling of the nitrogen ion laser pumped by charge transfer from He(3+) is reported in this work. Intense laser emission in the violet at 427 nm has been observed and found to have a linewidth less than 0.3 A. The pumping ion, HE(3+), was produced by discharge of a fast-pulsed electron beam gun, APEX-1, into several atmospheres of a mixture of helium and nitrogen. Excitation current ...


The Nitrogen Ion Laser. 31 MAR 1975
Authors:  Carl B. Collins; Austin J. Cunningham; TEXAS UNIV AT DALLAS RICHARDSON
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The characterization of the nitrogen ion laser pumped by charge transfer from He2(+) is reported in this work. Intense laser emission in the violet at 427 nm has been observed and found to have a linewidth less than 0.3 A. The pumping ion, He2(+), was produced by discharge of a fast-pulsed electron beam gun, APEX-1, into several atmospheres of a mixture of helium and nitrogen. Excitation current densities were 1.4 ...


The Nitrogen Ion Laser. 01 OCT 1974
Authors:  Carl B. Collins; Austin J. Cunningham; TEXAS UNIV AT DALLAS RICHARDSON
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The characterization of the nitrogen ion laser pumped by charge transfer from He2(+) is reported in this work. Intense laser emission in the violet at 427 nm has been observed and found to have a linewidth less than 0.3A. The pumping ion, He2(+), was produced by discharge of a fast-pulsed electron beam gun, APEX-1, into 7 atmospheres of a mixture of helium and nitrogen. Excitation current densities were 1.4KA/sq cm ...


The Nitrogen Ion Laser. 01 AUG 1974
Authors:  Carl B. Collins; Austin J. Cunningham; TEXAS UNIV AT DALLAS RICHARDSON
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The first nitrogen ion laser pumped by charge transfer from He2(+) is reported in this work. Intense laser emission in the violet at 427 nm has been observed and found to have a linewidth less than 0.3 nm. The pumping ion, He2(+), was produced by discharge of a fast-pulsed electron beam gun into 7 atmospheres of a mixture of helium and nitrogen. Excitation current densities were 1.4 KA/sqcm at 1 ...


Investigation of the Feasibility of the Electron Beam-Excited, High-Pressure Recombination Laser. 21 MAR 1974
Authors:  Carl B. Collins; Austin J. Cunningham; TEXAS UNIV DALLAS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The report describes research applied toward the determination of the feasibility of developing a recombining, electron beam-excited plasma into a pulsed laser of exceptionally high peak power. (Author)


Investigation of the Feasibility of the Electron Beam-Excited, High-Pressure Recombination Laser. 21 OCT 1973
Authors:  Carl B. Collins; Austin J. Cunningham; Brian W. Johnson; TEXAS UNIV DALLAS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The report describes research applied toward the determination of the feasibility of developing a recombining, electron beam-excited plasma into a pulsed laser of exceptionally high peak power. (Author)


Investigation of the Feasibility of the Electron Beam-Excited, High-Pressure Recombination Laser. APR 1973
Authors:  Carl B. Collins; Austin J. Cunningham; Brian W. Johnson; TEXAS UNIV DALLAS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The report describes research applied toward the determination of the feasibility of developing a recombining, electron beam-excited plasma into a pulsed laser of exceptionally high peak power. The indication of small signal gain for optical amplification at 5875 A is the principal subject of this supplement. (Author)


Investigation of the Feasibility of the Electron Beam-Excited, High-Pressure Recombination Laser. 28 FEB 1973
Authors:  Carl B. Collins; Austin J. Cunningham; Brian W. Johnson; TEXAS UNIV DALLAS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The objective of the research described in this report is to determine the feasibility of developing a recombining electron beam-excited plasma into a pulsed laser of exceptionally high peak power. Currently accepted theory indicates that this should be possible. An electron beam-excited helium afterglow system, operating routinely at 5 atmospheres and capable of modification to 20, was developed and instrumented so that spectroscopic observation of transient emissions in the visible ...


Investigation of the Feasibility of the Electron Beam-Excited, High-Pressure Recombination Laser. 21 OCT 1972
Authors:  Carl B. Collins; TEXAS UNIV DALLAS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The report describes research applied toward the determination of the feasibility of developing a recombining, electron beam-excited plasma into a pulsed laser of exceptionally high peak power. (Author)


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