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2. Trajectory tracking control with convergence time assessment.

Author

Geromel, José C. and Celeste Jr, Carlos E.

Subjects
STATE feedback (Feedback control systems), CLOSED loop systems, SLIDING mode control, INVARIANT sets, NONLINEAR systems, MOBILE robots, TRIANGULAR norms
Abstract

This paper presents a general procedure for state feedback trajectory tracking control design for a class of nonlinear system that combines smoothness, robustness and convergence time assessment and reduction to a prescribed invariant residual set. In particular, it is well adapted to deal with the trajectory tracking control of a half-car kinematic model since only one simple design condition provides the control law that imposes to the closed-loop system, asymptotic tracking of a given trajectory with a prescribed yaw angle orientation. Norm bounded additive matched disturbances are considered in order to establish a trade-off between robustness and speed of convergence. Two examples and a case study are presented and discussed in order to clearly illustrate and compare the theoretical results. [ABSTRACT FROM AUTHOR]

Published
2023
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5. LETTERS.

Author

Abney, Daniel R., Celeste Jr., Ray, and Hietpas, Andrew C.

Subjects
MILITARY aeronautics, MANEUVER warfare
Published
2019

6. Blount Island Command.

Author

Celeste Jr., Ray, Cvrk, Charles, and Wisniewski, Paul

Subjects
NAVAL bases, RATE of return, LABOR costs
Abstract

In this article, the authors comments on Major Robert G. Barber's article "Alternatives to Blount Island published in the December 2014 issue. Topics discussed include need for detailed cost benefit analysis such as labor costs to address the potential cost of standing up the Concord, California site, costs and capabilities of Marine Corps Logistics Base (MCLB) Barstow versus MCLB Albany, both in California and need for return on investment study.

Published
2015

7. LETTERS.

Author

Brackwell, Butch, Wong, Jonathan P., Kempster, Kurt A., Pollard, Jason R., and Celeste Jr., Ray

Subjects
LETTERS to the editor, PROFESSIONALISM, MARTIAL arts training
Abstract

Several letters to the editor are presented in response to article in the August 2011 issue including "Politics and Professionalism: A Response," by Major Joshua J. Norris, "MCMAP for All," by Major Art Houghtby, and the U.S. Marine Corps Legislative Fellows program.

Published
2011

8. LETTERS.

Author

Milligan, Bob, O'Shea, Brian, Kinzler, David, and Celeste Jr., Raymond A.

Subjects
MILITARY vehicles, MILITARY transportation, WAR, INTERNATIONAL relations, LEADERSHIP
Abstract

Several letters to the editor are presented in response to the articles published in previous issue including the article "Hazing Versus Challenging," that was published in the August 14, 2014 issue. an article on the tracked amphibian vehicle and the article "Leading After War: Adjusting Our Leadership to a New Challenge."

Published
2014

9. A Time for Reckoning.

Author

Celeste Jr., Ray

Subjects
COMBINED operations (Military science), UNITED States Marine Corps Aviation
Abstract

Focuses on the role of the aviation combat element in supporting the ground combat element of the United States Marine Corps. Performance in transporting troops and equipment; Integration of the Reserve F/A-18 squadron into the Total Force Marine Corps; Expansion of the Reserve fixed-wing assets.

Published
2001

10. Soft x-ray images of the laser entrance hole of ignition hohlraums.

Author

Schneider MB, Meezan NB, Alvarez SS, Alameda J, Baker S, Bell PM, Bradley DK, Callahan DA, Celeste JR, Dewald EL, Dixit SN, Döppner T, Eder DC, Edwards MJ, Fernandez-Perea M, Gullikson E, Haugh MJ, Hau-Riege S, Hsing W, Izumi N, Jones OS, Kalantar DH, Kilkenny JD, Kline JL, Kyrala GA, Landen OL, London RA, MacGowan BJ, MacKinnon AJ, McCarville TJ, Milovich JL, Mirkarimi P, Moody JD, Moore AS, Myers MD, Palma EA, Palmer N, Pivovaroff MJ, Ralph JE, Robinson J, Soufli R, Suter LJ, Teruya AT, Thomas CA, Town RP, Vernon SP, Widmann K, and Young BK

Abstract

Hohlraums are employed at the national ignition facility to convert laser energy into a thermal x-radiation drive, which implodes a fusion capsule, thus compressing the fuel. The x-radiation drive is measured with a low spectral resolution, time-resolved x-ray spectrometer, which views the region around the hohlraum's laser entrance hole. This measurement has no spatial resolution. To convert this to the drive inside the hohlraum, the size of the hohlraum's opening ("clear aperture") and fraction of the measured x-radiation, which comes from this opening, must be known. The size of the clear aperture is measured with the time integrated static x-ray imager (SXI). A soft x-ray imaging channel has been added to the SXI to measure the fraction of x-radiation emitted from inside the clear aperture. A multilayer mirror plus filter selects an x-ray band centered at 870 eV, near the peak of the x-ray spectrum of a 300 eV blackbody. Results from this channel and corrections to the x-radiation drive are discussed.

Published
2012
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11. X-ray bang-time and fusion reaction history at picosecond resolution using RadOptic detection.

Author

Vernon SP, Lowry ME, Baker KL, Bennett CV, Celeste JR, Cerjan C, Haynes S, Hernandez VJ, Hsing WW, LaCaille GA, London RA, Moran B, von Wittenau AS, Steele PT, and Stewart RE

Abstract

We report recent progress in the development of RadOptic detectors, radiation to optical converters, that rely upon x-ray absorption induced modulation of the optical refractive index of a semiconductor sensor medium to amplitude modulate an optical probe beam. The sensor temporal response is determined by the dynamics of the electron-hole pair creation and subsequent relaxation in the sensor medium. Response times of a few ps have been demonstrated in a series of experiments conducted at the LLNL Jupiter Laser Facility (JLF). This technology will enable x-ray bang-time and fusion burn-history measurements with ∼ ps resolution.

Published
2012
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12. Demonstration of ignition radiation temperatures in indirect-drive inertial confinement fusion hohlraums.

Author

Glenzer SH, MacGowan BJ, Meezan NB, Adams PA, Alfonso JB, Alger ET, Alherz Z, Alvarez LF, Alvarez SS, Amick PV, Andersson KS, Andrews SD, Antonini GJ, Arnold PA, Atkinson DP, Auyang L, Azevedo SG, Balaoing BN, Baltz JA, Barbosa F, Bardsley GW, Barker DA, Barnes AI, Baron A, Beeler RG, Beeman BV, Belk LR, Bell JC, Bell PM, Berger RL, Bergonia MA, Bernardez LJ, Berzins LV, Bettenhausen RC, Bezerides L, Bhandarkar SD, Bishop CL, Bond EJ, Bopp DR, Borgman JA, Bower JR, Bowers GA, Bowers MW, Boyle DT, Bradley DK, Bragg JL, Braucht J, Brinkerhoff DL, Browning DF, Brunton GK, Burkhart SC, Burns SR, Burns KE, Burr B, Burrows LM, Butlin RK, Cahayag NJ, Callahan DA, Cardinale PS, Carey RW, Carlson JW, Casey AD, Castro C, Celeste JR, Chakicherla AY, Chambers FW, Chan C, Chandrasekaran H, Chang C, Chapman RF, Charron K, Chen Y, Christensen MJ, Churby AJ, Clancy TJ, Cline BD, Clowdus LC, Cocherell DG, Coffield FE, Cohen SJ, Costa RL, Cox JR, Curnow GM, Dailey MJ, Danforth PM, Darbee R, Datte PS, Davis JA, Deis GA, Demaret RD, Dewald EL, Di Nicola P, Di Nicola JM, Divol L, Dixit S, Dobson DB, Doppner T, Driscoll JD, Dugorepec J, Duncan JJ, Dupuy PC, Dzenitis EG, Eckart MJ, Edson SL, Edwards GJ, Edwards MJ, Edwards OD, Edwards PW, Ellefson JC, Ellerbee CH, Erbert GV, Estes CM, Fabyan WJ, Fallejo RN, Fedorov M, Felker B, Fink JT, Finney MD, Finnie LF, Fischer MJ, Fisher JM, Fishler BT, Florio JW, Forsman A, Foxworthy CB, Franks RM, Frazier T, Frieder G, Fung T, Gawinski GN, Gibson CR, Giraldez E, Glenn SM, Golick BP, Gonzales H, Gonzales SA, Gonzalez MJ, Griffin KL, Grippen J, Gross SM, Gschweng PH, Gururangan G, Gu K, Haan SW, Hahn SR, Haid BJ, Hamblen JE, Hammel BA, Hamza AV, Hardy DL, Hart DR, Hartley RG, Haynam CA, Heestand GM, Hermann MR, Hermes GL, Hey DS, Hibbard RL, Hicks DG, Hinkel DE, Hipple DL, Hitchcock JD, Hodtwalker DL, Holder JP, Hollis JD, Holtmeier GM, Huber SR, Huey AW, Hulsey DN, Hunter SL, Huppler TR, Hutton MS, Izumi N, Jackson JL, Jackson MA, Jancaitis KS, Jedlovec DR, Johnson B, Johnson MC, Johnson T, Johnston MP, Jones OS, Kalantar DH, Kamperschroer JH, Kauffman RL, Keating GA, Kegelmeyer LM, Kenitzer SL, Kimbrough JR, King K, Kirkwood RK, Klingmann JL, Knittel KM, Kohut TR, Koka KG, Kramer SW, Krammen JE, Krauter KG, Krauter GW, Krieger EK, Kroll JJ, La Fortune KN, Lagin LJ, Lakamsani VK, Landen OL, Lane SW, Langdon AB, Langer SH, Lao N, Larson DW, Latray D, Lau GT, Le Pape S, Lechleiter BL, Lee Y, Lee TL, Li J, Liebman JA, Lindl JD, Locke SF, Loey HK, London RA, Lopez FJ, Lord DM, Lowe-Webb RR, Lown JG, Ludwigsen AP, Lum NW, Lyons RR, Ma T, MacKinnon AJ, Magat MD, Maloy DT, Malsbury TN, Markham G, Marquez RM, Marsh AA, Marshall CD, Marshall SR, Maslennikov IL, Mathisen DG, Mauger GJ, Mauvais M-, McBride JA, McCarville T, McCloud JB, McGrew A, McHale B, MacPhee AG, Meeker JF, Merill JS, Mertens EP, Michel PA, Miller MG, Mills T, Milovich JL, Miramontes R, Montesanti RC, Montoya MM, Moody J, Moody JD, Moreno KA, Morris J, Morriston KM, Nelson JR, Neto M, Neumann JD, Ng E, Ngo QM, Olejniczak BL, Olson RE, Orsi NL, Owens MW, Padilla EH, Pannell TM, Parham TG, Patterson RW Jr, Pavel G, Prasad RR, Pendlton D, Penko FA, Pepmeier BL, Petersen DE, Phillips TW, Pigg D, Piston KW, Pletcher KD, Powell CL, Radousky HB, Raimondi BS, Ralph JE, Rampke RL, Reed RK, Reid WA, Rekow VV, Reynolds JL, Rhodes JJ, Richardson MJ, Rinnert RJ, Riordan BP, Rivenes AS, Rivera AT, Roberts CJ, Robinson JA, Robinson RB, Robison SR, Rodriguez OR, Rogers SP, Rosen MD, Ross GF, Runkel M, Runtal AS, Sacks RA, Sailors SF, Salmon JT, Salmonson JD, Saunders RL, Schaffer JR, Schindler TM, Schmitt MJ, Schneider MB, Segraves KS, Shaw MJ, Sheldrick ME, Shelton RT, Shiflett MK, Shiromizu SJ, Shor M, Silva LL, Silva SA, Skulina KM, Smauley DA, Smith BE, Smith LK, Solomon AL, Sommer S, Soto JG, Spafford NI, Speck DE, Springer PT, Stadermann M, Stanley F, Stone TG, Stout EA, Stratton PL, Strausser RJ, Suter LJ, Sweet W, Swisher MF, Tappero JD, Tassano JB, Taylor JS, Tekle EA, Thai C, Thomas CA, Thomas A, Throop AL, Tietbohl GL, Tillman JM, Town RP, Townsend SL, Tribbey KL, Trummer D, Truong J, Vaher J, Valadez M, Van Arsdall P, Van Prooyen AJ, Vergel de Dios EO, Vergino MD, Vernon SP, Vickers JL, Villanueva GT, Vitalich MA, Vonhof SA, Wade FE, Wallace RJ, Warren CT, Warrick AL, Watkins J, Weaver S, Wegner PJ, Weingart MA, Wen J, White KS, Whitman PK, Widmann K, Widmayer CC, Wilhelmsen K, Williams EA, Williams WH, Willis L, Wilson EF, Wilson BA, Witte MC, Work K, Yang PS, Young BK, Youngblood KP, Zacharias RA, Zaleski T, Zapata PG, Zhang H, Zielinski JS, Kline JL, Kyrala GA, Niemann C, Kilkenny JD, Nikroo A, Van Wonterghem BM, Atherton LJ, and Moses EI

Abstract

We demonstrate the hohlraum radiation temperature and symmetry required for ignition-scale inertial confinement fusion capsule implosions. Cryogenic gas-filled hohlraums with 2.2 mm-diameter capsules are heated with unprecedented laser energies of 1.2 MJ delivered by 192 ultraviolet laser beams on the National Ignition Facility. Laser backscatter measurements show that these hohlraums absorb 87% to 91% of the incident laser power resulting in peak radiation temperatures of T(RAD)=300 eV and a symmetric implosion to a 100 μm diameter hot core., (© 2011 American Physical Society)

Published
2011
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13. Images of the laser entrance hole from the static x-ray imager at NIF.

Author

Schneider MB, Jones OS, Meezan NB, Milovich JL, Town RP, Alvarez SS, Beeler RG, Bradley DK, Celeste JR, Dixit SN, Edwards MJ, Haugh MJ, Kalantar DH, Kline JL, Kyrala GA, Landen OL, MacGowan BJ, Michel P, Moody JD, Oberhelman SK, Piston KW, Pivovaroff MJ, Suter LJ, Teruya AT, Thomas CA, Vernon SP, Warrick AL, Widmann K, Wood RD, and Young BK

Abstract

The static x-ray imager at the National Ignition Facility is a pinhole camera using a CCD detector to obtain images of Hohlraum wall x-ray drive illumination patterns seen through the laser entrance hole (LEH). Carefully chosen filters, combined with the CCD response, allow recording images in the x-ray range of 3-5 keV with 60 μm spatial resolution. The routines used to obtain the apparent size of the backlit LEH and the location and intensity of beam spots are discussed and compared to predictions. A new soft x-ray channel centered at 870 eV (near the x-ray peak of a 300 eV temperature ignition Hohlraum) is discussed.

Published
2010
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14. Radiation-driven hydrodynamics of high- hohlraums on the national ignition facility.

Author

Dewald EL, Suter LJ, Landen OL, Holder JP, Schein J, Lee FD, Campbell KM, Weber FA, Pellinen DG, Schneider MB, Celeste JR, McDonald JW, Foster JM, Niemann C, Mackinnon AJ, Glenzer SH, Young BK, Haynam CA, Shaw MJ, Turner RE, Froula D, Kauffman RL, Thomas BR, Atherton LJ, Bonanno RE, Dixit SN, Eder DC, Holtmeier G, Kalantar DH, Koniges AE, Macgowan BJ, Manes KR, Munro DH, Murray JR, Parham TG, Piston K, Van Wonterghem BM, Wallace RJ, Wegner PJ, Whitman PK, Hammel BA, and Moses EI

Abstract

The first hohlraum experiments on the National Ignition Facility (NIF) using the initial four laser beams tested radiation temperature limits imposed by plasma filling. For a variety of hohlraum sizes and pulse lengths, the measured x-ray flux shows signatures of filling that coincide with hard x-ray emission from plasma streaming out of the hohlraum. These observations agree with hydrodynamic simulations and with an analytical model that includes hydrodynamic and coronal radiative losses. The modeling predicts radiation temperature limits with full NIF (1.8 MJ), greater, and of longer duration than required for ignition hohlraums.

Published
2005
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