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Thursday, August 6, 2020 | History

2 edition of Simulations of the LANL 1 KW regenerative amplifier FEL found in the catalog.

Simulations of the LANL 1 KW regenerative amplifier FEL

by Mark D. Kesselring

  • 395 Want to read
  • 38 Currently reading

Published by Naval Postgraduate School, Available from National Technical Information Service in Monterey, Calif, Springfield, Va .
Written in English


About the Edition

The development of a high average power FEL for military applications would represent a significant improvement in missile defense, especially shipboard self defense. The LANL regenerative amplifier FEL (RAFEL) is designed to produce an average output power of 1 kW. This FEL represents a significant increase in average power demonstrated in an FEL and also provides a test of the concept of combining the FEL oscillator and amplifier designs. Simulations were performed to better understand the physics behind the LANL RAFEL operation. Simulations study the transverse effects due to optical guiding by the intense electron beam and feedback. These simulations are applied to optimizing the undulator taper rate, feedback optimization, and initial phase velocity. Additional simulations study the longitudinal effects due to short electron pulses and optical pulse development over multiple passes. Finally, simulations of the RAFEL design using an ideal beam expand on understanding of the design"s basic characteristics and limitations.

Edition Notes

StatementMark D. Kesselring
Classifications
LC ClassificationsK3943
The Physical Object
Paginationx, 59 p. ;
Number of Pages59
ID Numbers
Open LibraryOL25294551M
OCLC/WorldCa640498287

ALSM Solid State Amplifier w/ ALSRC Remote Control Features: Mobile no tune Solid State Amplifier: uses four rugged 2SC high power linear RF power transistors. Instant bandswitching: no tuning, no warm up just turn on and operate. make. The HLKfx was the flagship amplifier of the THP line of HF amplifiers for 5 Years and was to be replaced in by the HLFx. It is a full legal limit amplifier with a minimum output of kW ( KW on 28 MHz), operating on bands from MM. The very first Kfx were actually developed in a semi kit form and later a early.

  Forum Readers, while surveying various post-war radio designs with the German military surplus RV 12 P tube, I came across this interesting regenerative detector design, that includes negative audio feedback from the output speaker to the detection radio is the Siemens SKW from , and all three tubes in the signal path are the RV 12 P tube. Delivering science and technology to protect our nation and promote world stability.

Give your radio operation a power boost with our selection of amplifiers, including high-power HF amplifiers, solid-state amplifiers, and mobile amplifiers. From affordable watt PEP output to all-out 1,watt continuous power, our selection of linear amplifiers will deliver the stable, efficient power punch you need to operate with. o With the included ATU, the amplifier is able to overcome some mismatches of SWR or more. As long as the ATU matches the antenna to give a reading below in the SWR box, the amplifier will operate. Between and the output of the amplifier is File Size: KB.


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Simulations of the LANL 1 KW regenerative amplifier FEL by Mark D. Kesselring Download PDF EPUB FB2

Simulations of the LANL Regenerative Amplifier FEL M. Kesselring, W.B. Colson, R. Wong, and R.L. Sheffield Physics Departmenf, Naval Postgraduate School, Monterq, CA USA a Los Alamos National Lab, MS H, Los Alamos, NM USA Abstract The LANL regenerative amplifier FEL is designed to produce an average output power of 1kW.

The Regenerative Amplifier Free-Electron Laser (RAFEL) is a high-gain RF-linac FEL capable of producing high optical power from a compact design.

The combination of a high-gain and small optical feedback enables the FEL to reach saturation and produce a high optical power and high extraction efficiency without risk of optical damage to the mirrors.

Regenerative amplifier can also operate at Radio Frequency, using the feedback between the transistor's source and gate to transform a capacitive impedance on the transistor’s source to a negative resistance on its gate.

Compared to voltage-gated amplifiers, this "negative resistance amplifier" will only require a tiny amount of power to. It would be more natural, though, to consider a regenerative amplifier as one type of multipass amplifier.

Figure 1: Setup of a regenerative amplifier for picosecond pulses. A Pockels cell, combined with a quarter-wave plate and a thin-film polarizer (TFP), acts as an optical switch.

The Faraday rotator is used for separating input and output. Regenerative amplifier FEL. High-gain RF-linac FELs operating in the self-amplified spontaneous emission (SASE) regime have recently emerged as a potentially viable technology for generating short-wavelength coherent -power FELs, prone to optical damage in the resonator mirrors because of high intracavity power, can also benefit from the single-pass nature of by: John C.

Goldstein's 70 research works with citations and reads, including: Optical Performance of the Los Alamos Free Electron Laser. describes the basic amplifier design.

July QEX also carried an article about it. 2 Fig 1 shows the amplifier schematic. Briefly, the circuit consists of two MRF RF power MOSFETs in push-pull. Each of these transistors is capable of watts out- put up to MHz. The input and output transformers, andrespectively, useFile Size: 3MB.

The new design for the Boeing High Average Power Free Electron Laser will operate at 1KW average power ( {mu}m) with a peak current of A. Simulations are used to investigate the trapped-particle instability and diffraction effects. Incorporating large desynchronism may prove to be a useful.

About 4 KW RF Amplifier The resource is currently listed in in a single category. The main category is Amateur linear amplifiers that is about HF amplifiers for ham radio use.

This link is listed in our web site directory since Monday Jan 5and till today "4 KW RF Amplifier" has been followed for a total of far received 2 votes for a total score of //10(2). Our solid-state broadband design engineers worked to make the MOS, the lightest kW HF amplifier. This world-class compact kW HF amplifier is the easiest to handle and operate.

The amplifier is equipped with a newly developed band decoder. niques [1]. Particle-in-cell (PIC) simulations of a CeC modulator with the parallel VORPAL framework gener-ate macro-particle distributions with subtle but important phase space correlations. To couple these macro-particles into a 3D simulation code for the free-electron laser (FEL) amplier, while retaining all details of the 6D phase space.

LANL Engineering Standards. The purpose of the Los Alamos National Laboratory Engineering Standards is to define the minimum technical requirements for the design, fabrication, construction, commissioning, repair, and replacement of both new and existing equipment and facilities, including both maintenance and modification, for programmatic and facility work at LANL.

The HLKfx was the flagship of the Tokyo Hy-Power line of HF amplifiers. It is a full legal limit amplifier with a minimum output of kW ( KW on 10 meters), operating on bands from MM. It's huge all copper heat-sink and use of ARF Mosfets coupled to a fully built in linear power supply made it an extremely popular amplifier with top DXers.

The driver for Jefferson Lab's kW-level infrared free-electron laser (FEL) is a superconducting, recirculating accelerator that recovers 75% of the electron-beam power and converts it to radio.

LANL Engineering Standards Manual STD Chapter 21– Software 6 SOFT-MAINT: Use, Maintain & Retire Rev. 1, 05/25/17 Page 1 of 7. TABLE OF CONTENTS. The tickler/feedback winding can be separated from the main coil by about 1/8" if you're winding it on a standard plug-in coil form.

In practice, it can be wound right around the main coil Although turns will suffice, anything in the area of turns will work as the. Since its invention inthe super-regenerative amplifier (SRA) has been used in a variety of short-range, low-power, and/or low-cost wireless systems due to its simple implementation and excellent performance for a given power budget.

Growing demand for ultralow-power receivers for short-range radios has recently reawakened an interest in Author: Joel L. Dawson, Jose L. Bohorquez, Anantha P. Chandrakasan. o Without the ATU (option), always use antennas having SWR of or less. o With the ATU, the amplifier is able to overcome some mismatches of SWR or more.

As long as the ATU matches the antenna to give a reading below in the SWR box, the amplifier will operate. Between and the output of the amplifier is slightly Size: KB.

Washington, DC: The National Academies Press. doi: / In the regenerative amplifier FEL demonstration at Los Alamos National Laboratory (LANL), the FEL reached an output power of kW over a timescale of 10 microseconds (μs). It is only with validated simulations that scaling from the 10 kW level, achieved now, to the.

Technical solution Rohde & Schwarz has more than 70 years of experience in building air-cooled and liquid-cooled high-power amplifiers for broadcasting, EMC, physics and engineering applications. The company offers a broad range of products, including narrowband and broadband solid-state amplifiers for the frequency range from 9 kHz to 6 GHz, delivering CW power up to 80 kW.

Workshop on the Advanced Design of Spoke Resonators (7) Coax diameter mm Coax impedance 75 Ω Waveguide WR Window-type cylindrical Window-material 95% pure (ε =tan δ = ) Window OD mm Thickness mm Transition ½-height waveguide to λ/4 stub Coax short mm to window center Waveguide short mm to window center.Fig.

1I was the Nd:YVO 4 mode-locked laser, an a-cut Nd:YVO 4 laser crystal and a SESAM were used like in Ref. [].Both R 1 and R 2 were concave mirrors with high-reflection coatings at nm.

OC was an output coupler mirror with a transmission rate of 2%. The cavity length of this mode-locked laser was about m. The E was an etalon with a length of 1 mm. Fig.

1II was the optical layout of Cited by: 3.MHz to 50 MHz including WARC Bands.- Full solid state. 1 KW pep SSB out.; W pep CW out (typ.) ; W pep out.

(typ.) on. 50 MHz. FULL / HALF power selected according to the operator SSB/CW power requirement, for digital modes and for linear protection (automatic).