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Sayre DB, Cerjan CJ, Sepke SM, Gericke DO, Caggiano JA, Divol L, Eckart MJ, Graziani FR, Grim GP, Hansen SB, Hartouni EP, Hatarik R, Hatchett SP, Hayes AK, Hopkins LFB, Johnson MG, Khan SF, Knauer JP, Le Pape S, MacKinnon AJ, McNaney JM, Meezan NB, Rinderknecht HG, Shaughnessy DA, Stoeffl W, Yeamans CB, Zylstra AB, Schneider DH. Neutron Time-of-Flight Measurements of Charged-Particle Energy Loss in Inertial Confinement Fusion Plasmas. Phys Rev Lett 2019; 123:165001. [PMID: 31702328 DOI: 10.1103/physrevlett.123.165001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 07/25/2019] [Indexed: 06/10/2023]
Abstract
Neutron spectra from secondary ^{3}H(d,n)α reactions produced by an implosion of a deuterium-gas capsule at the National Ignition Facility have been measured with order-of-magnitude improvements in statistics and resolution over past experiments. These new data and their sensitivity to the energy loss of fast tritons emitted from thermal ^{2}H(d,p)^{3}H reactions enable the first statistically significant investigation of charged-particle stopping via the emitted neutron spectrum. Radiation-hydrodynamic simulations, constrained to match a number of observables from the implosion, were used to predict the neutron spectra while employing two different energy loss models. This analysis represents the first test of stopping models under inertial confinement fusion conditions, covering plasma temperatures of k_{B}T≈1-4 keV and particle densities of n≈(12-2)×10^{24} cm^{-3}. Under these conditions, we find significant deviations of our data from a theory employing classical collisions whereas the theory including quantum diffraction agrees with our data.
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Affiliation(s)
- D B Sayre
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - C J Cerjan
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S M Sepke
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D O Gericke
- Centre for Fusion, Space and Astrophysics, Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - J A Caggiano
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - L Divol
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - M J Eckart
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - F R Graziani
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - G P Grim
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S B Hansen
- Sandia National Laboratory, Albuquerque, New Mexico 87185, USA
| | - E P Hartouni
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R Hatarik
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S P Hatchett
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A K Hayes
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - L F Berzak Hopkins
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - M Gatu Johnson
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S F Khan
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J P Knauer
- University of Rochester, Rochester, New York 14623, USA
| | - S Le Pape
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A J MacKinnon
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J M McNaney
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N B Meezan
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - H G Rinderknecht
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D A Shaughnessy
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - W Stoeffl
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - C B Yeamans
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A B Zylstra
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D H Schneider
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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2
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Kilkenny JD, Bell PM, Bradley DK, Bleuel DL, Caggiano JA, Dewald EL, Hsing WW, Kalantar DH, Kauffman RL, Larson DJ, Moody JD, Schneider DH, Schneider MB, Shaughnessy DA, Shelton RT, Stoeffl W, Widmann K, Yeamans CB, Batha SH, Grim GP, Herrmann HW, Merrill FE, Leeper RJ, Oertel JA, Sangster TC, Edgell DH, Hohenberger M, Glebov VY, Regan SP, Frenje JA, Gatu-Johnson M, Petrasso RD, Rinderknecht HG, Zylstra AB, Cooper GW, Ruizf C. The National Ignition Facility Diagnostic Set at the Completion of the National Ignition Campaign, September 2012. Fusion Science and Technology 2017. [DOI: 10.13182/fst15-173] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - P. M. Bell
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - D. K. Bradley
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - D. L. Bleuel
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - J. A. Caggiano
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - E. L. Dewald
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - W. W. Hsing
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - D. H. Kalantar
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - R. L. Kauffman
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - D. J. Larson
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - J. D. Moody
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - D. H. Schneider
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - M. B. Schneider
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | | | - R. T. Shelton
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - W. Stoeffl
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - K. Widmann
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - C. B. Yeamans
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - S. H. Batha
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - G. P. Grim
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - H. W. Herrmann
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - F. E. Merrill
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - R. J. Leeper
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - J. A. Oertel
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - T. C. Sangster
- Laboratory for Laser Energetics, Rochester, New York 14623
| | - D. H. Edgell
- Laboratory for Laser Energetics, Rochester, New York 14623
| | - M. Hohenberger
- Laboratory for Laser Energetics, Rochester, New York 14623
| | - V. Yu. Glebov
- Laboratory for Laser Energetics, Rochester, New York 14623
| | - S. P. Regan
- Laboratory for Laser Energetics, Rochester, New York 14623
| | - J. A. Frenje
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - M. Gatu-Johnson
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - R. D. Petrasso
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | | | - A. B. Zylstra
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - G. W. Cooper
- Sandia National Laboratories, Albuquerque, New Mexico 87123
| | - C. Ruizf
- Sandia National Laboratories, Albuquerque, New Mexico 87123
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3
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Hagmann C, Shaughnessy DA, Moody KJ, Grant PM, Gharibyan N, Gostic JM, Wooddy PT, Torretto PC, Bandong BB, Bionta R, Cerjan CJ, Bernstein LA, Caggiano JA, Herrmann HW, Knauer JP, Sayre DB, Schneider DH, Henry EA, Fortner RJ. Note: Radiochemical measurement of fuel and ablator areal densities in cryogenic implosions at the National Ignition Facility. Rev Sci Instrum 2015; 86:076105. [PMID: 26233419 DOI: 10.1063/1.4926743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 06/30/2015] [Indexed: 06/04/2023]
Abstract
A new radiochemical method for determining deuterium-tritium (DT) fuel and plastic ablator (CH) areal densities (ρR) in high-convergence, cryogenic inertial confinement fusion implosions at the National Ignition Facility is described. It is based on measuring the (198)Au/(196)Au activation ratio using the collected post-shot debris of the Au hohlraum. The Au ratio combined with the independently measured neutron down scatter ratio uniquely determines the areal densities ρR(DT) and ρR(CH) during burn in the context of a simple 1-dimensional capsule model. The results show larger than expected ρR(CH) values, hinting at the presence of cold fuel-ablator mix.
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Affiliation(s)
- C Hagmann
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - D A Shaughnessy
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - K J Moody
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - P M Grant
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - N Gharibyan
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - J M Gostic
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - P T Wooddy
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - P C Torretto
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - B B Bandong
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - R Bionta
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - C J Cerjan
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - L A Bernstein
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - J A Caggiano
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - H W Herrmann
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J P Knauer
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - D B Sayre
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - D H Schneider
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - E A Henry
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - R J Fortner
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
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Sayre DB, Brune CR, Caggiano JA, Glebov VY, Hatarik R, Bacher AD, Bleuel DL, Casey DT, Cerjan CJ, Eckart MJ, Fortner RJ, Frenje JA, Friedrich S, Gatu-Johnson M, Grim GP, Hagmann C, Knauer JP, Kline JL, McNabb DP, McNaney JM, Mintz JM, Moran MJ, Nikroo A, Phillips T, Pino JE, Remington BA, Rowley DP, Schneider DH, Smalyuk VA, Stoeffl W, Tipton RE, Weber SV, Yeamans CB. Measurement of the T + T neutron spectrum using the national ignition facility. Phys Rev Lett 2013; 111:052501. [PMID: 23952390 DOI: 10.1103/physrevlett.111.052501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2013] [Indexed: 06/02/2023]
Abstract
Neutron time-of-flight spectra from inertial confinement fusion experiments with tritium-filled targets have been measured at the National Ignition Facility. These spectra represent a significant improvement in energy resolution and statistics over previous measurements, and afford the first definitive observation of a peak resulting from sequential decay through the ground state of (5)He at low reaction energies E(c.m.) 100 </~ keV. To describe the spectrum, we have developed an R-matrix model that accounts for interferences from fermion symmetry and intermediate states, and show these effects to be non-negligible. We also find the spectrum can be described by sequential decay through ℓ=1 states in (5)He, which differs from previous interpretations.
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Affiliation(s)
- D B Sayre
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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5
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Mackinnon AJ, Kline JL, Dixit SN, Glenzer SH, Edwards MJ, Callahan DA, Meezan NB, Haan SW, Kilkenny JD, Döppner T, Farley DR, Moody JD, Ralph JE, MacGowan BJ, Landen OL, Robey HF, Boehly TR, Celliers PM, Eggert JH, Krauter K, Frieders G, Ross GF, Hicks DG, Olson RE, Weber SV, Spears BK, Salmonsen JD, Michel P, Divol L, Hammel B, Thomas CA, Clark DS, Jones OS, Springer PT, Cerjan CJ, Collins GW, Glebov VY, Knauer JP, Sangster C, Stoeckl C, McKenty P, McNaney JM, Leeper RJ, Ruiz CL, Cooper GW, Nelson AG, Chandler GGA, Hahn KD, Moran MJ, Schneider MB, Palmer NE, Bionta RM, Hartouni EP, LePape S, Patel PK, Izumi N, Tommasini R, Bond EJ, Caggiano JA, Hatarik R, Grim GP, Merrill FE, Fittinghoff DN, Guler N, Drury O, Wilson DC, Herrmann HW, Stoeffl W, Casey DT, Johnson MG, Frenje JA, Petrasso RD, Zylestra A, Rinderknecht H, Kalantar DH, Dzenitis JM, Di Nicola P, Eder DC, Courdin WH, Gururangan G, Burkhart SC, Friedrich S, Blueuel DL, Bernstein LA, Eckart MJ, Munro DH, Hatchett SP, Macphee AG, Edgell DH, Bradley DK, Bell PM, Glenn SM, Simanovskaia N, Barrios MA, Benedetti R, Kyrala GA, Town RPJ, Dewald EL, Milovich JL, Widmann K, Moore AS, LaCaille G, Regan SP, Suter LJ, Felker B, Ashabranner RC, Jackson MC, Prasad R, Richardson MJ, Kohut TR, Datte PS, Krauter GW, Klingman JJ, Burr RF, Land TA, Hermann MR, Latray DA, Saunders RL, Weaver S, Cohen SJ, Berzins L, Brass SG, Palma ES, Lowe-Webb RR, McHalle GN, Arnold PA, Lagin LJ, Marshall CD, Brunton GK, Mathisen DG, Wood RD, Cox JR, Ehrlich RB, Knittel KM, Bowers MW, Zacharias RA, Young BK, Holder JP, Kimbrough JR, Ma T, La Fortune KN, Widmayer CC, Shaw MJ, Erbert GV, Jancaitis KS, DiNicola JM, Orth C, Heestand G, Kirkwood R, Haynam C, Wegner PJ, Whitman PK, Hamza A, Dzenitis EG, Wallace RJ, Bhandarkar SD, Parham TG, Dylla-Spears R, Mapoles ER, Kozioziemski BJ, Sater JD, Walters CF, Haid BJ, Fair J, Nikroo A, Giraldez E, Moreno K, Vanwonterghem B, Kauffman RL, Batha S, Larson DW, Fortner RJ, Schneider DH, Lindl JD, Patterson RW, Atherton LJ, Moses EI. Assembly of high-areal-density deuterium-tritium fuel from indirectly driven cryogenic implosions. Phys Rev Lett 2012; 108:215005. [PMID: 23003274 DOI: 10.1103/physrevlett.108.215005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2011] [Indexed: 06/01/2023]
Abstract
The National Ignition Facility has been used to compress deuterium-tritium to an average areal density of ~1.0±0.1 g cm(-2), which is 67% of the ignition requirement. These conditions were obtained using 192 laser beams with total energy of 1-1.6 MJ and peak power up to 420 TW to create a hohlraum drive with a shaped power profile, peaking at a soft x-ray radiation temperature of 275-300 eV. This pulse delivered a series of shocks that compressed a capsule containing cryogenic deuterium-tritium to a radius of 25-35 μm. Neutron images of the implosion were used to estimate a fuel density of 500-800 g cm(-3).
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Affiliation(s)
- A J Mackinnon
- Lawrence Livermore National Laboratory, Livermore, California 94551, USA
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Grim GP, Bradley PA, Bredeweg TA, Keksis AL, Fowler MM, Hayes AC, Jungman G, Obst AW, Rundberg RS, Vieira DJ, Wilhelmy JB, Bernstein LA, Cerjan CJ, Fortner RJ, Moody KJ, Schneider DH, Shaughnessy DA, Stoeffl W, Stoyer MA. Prompt radiochemistry at the National Ignition Facility (invited). Rev Sci Instrum 2008; 79:10E503. [PMID: 19044489 DOI: 10.1063/1.2972174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Understanding mix in inertial confinement fusion (ICF) experiments at the National Ignition Facility requires the diagnosis of charged-particle reactions within an imploded target. Radiochemical diagnostics of these reactions are currently under study by scientists at Los Alamos and Lawrence Livermore National Laboratories. Measurement of these reactions requires assay of activated debris and tracer gases from the target. Presented below is an overview of the prompt radiochemistry diagnostic development efforts, including a discussion of the reactions of interest as well as the progress being made to collect and count activated material.
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Affiliation(s)
- G P Grim
- Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545, USA.
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Chan A, Newman DL, Shon AM, Schneider DH, Kuldanek S, Ober C. Variation in the type I interferon gene cluster on 9p21 influences susceptibility to asthma and atopy. Genes Immun 2006; 7:169-78. [PMID: 16437122 DOI: 10.1038/sj.gene.6364287] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A genome-wide screen for asthma and atopy susceptibility alleles conducted in the Hutterites, a founder population of European descent, reported evidence of linkage with a short tandem repeat polymorphism (STRP) within the type I interferon (IFN) gene cluster on chromosome 9p21. The goal of this study was to identify variation within the IFN gene cluster that influences susceptibility to asthma and atopic phenotypes. We screened approximately 25 kb of sequence, including the flanking sequence of all 15 functional genes and the single coding exon in 12, in Hutterites representing different IFNA-STRP genotypes. We identified 78 polymorphisms, and genotyped 40 of these (in 14 genes) in a large Hutterite pedigree. Modest associations (0.003<P<0.05) with asthma, bronchial hyper-responsiveness (BHR), and atopy were observed with individual variants or genes, spanning the entire 400 kb region. However, pairwise combinations of haplotypes between genes showed highly significant associations with different phenotypes (P<10(-5)) that were localized to specific pairs of genes or regions of this cluster. These results suggest that variation in multiple genes in the type I IFN cluster on 9p22 contribute to asthma and atopy susceptibility, and that not all genes contribute equally to all phenotypes.
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Affiliation(s)
- A Chan
- Department of Human Genetics, The University of Chicago, Chicago, IL 60636, USA
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Briand J, Jin J, Khemliche H, Prior MH, Xie Z, Nectoux M, Schneider DH. Interaction of slow Ar(17,18)+ ions with C60: An insight into ion-surface interactions. Phys Rev A 1996; 53:R2925-R2928. [PMID: 9913326 DOI: 10.1103/physreva.53.r2925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Schneider DH, DeWitt DR, Bauer RW, Mowat JR, Graham WG, Schlachter AS, Skogvall B, Fainstein P, Rivarola RD. Absolute doubly differential cross sections for electron emission in collisions of 3.5-MeV/u Fe17+ and Fe22+ ions with He and Ar gas targets. Phys Rev A 1992; 46:1296-1302. [PMID: 9908248 DOI: 10.1103/physreva.46.1296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Schneider DH. Is your group practice healthy? Overhead expense (OE) insurance. Group Pract J 1988; 37:48, 50, 52-3. [PMID: 10290675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Schneider DH. Cancer patient without hope. S Afr Med J 1975; 49:297-8. [PMID: 1114417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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