A 2-4 keV multilayer mirrored channel for the NIF Dante system.
| Title: | A 2-4 keV multilayer mirrored channel for the NIF Dante system. |
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| Authors: | Rubery MS; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Ose N; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Schneider M; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Moore AS; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Carrera J; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Mariscal E; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Ayers J; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Bell P; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Mackinnon A; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Bradley D; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Landen OL; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Thompson N; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Carpenter A; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Winters S; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Ehrlich B; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Sarginson T; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Rendon A; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Liebman J; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Johnson K; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Merril D; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Grant G; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Shingleton N; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Taylor A; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Ruchonnet G; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Stanley J; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Cohen M; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Kohut T; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Issavi R; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Norris J; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Wright J; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Stevers J; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Masters N; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Latray D; Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94551-0808, USA.; Kilkenny J; General Atomics, San Diego, California 92121, USA.; Stolte WC; MSTS, Mission Support and Test Services LLC, Livermore, California 94550-9239, USA.; Conlon CS; MSTS, Mission Support and Test Services LLC, Livermore, California 94550-9239, USA.; Troussel P; Commissariat à l'Énergie Atomique (CEA), DAM, DIF, F-91297 Arpajon, France.; Villette B; Commissariat à l'Énergie Atomique (CEA), DAM, DIF, F-91297 Arpajon, France.; Emprin B; Commissariat à l'Énergie Atomique (CEA), DAM, DIF, F-91297 Arpajon, France.; Wrobel R; Commissariat à l'Énergie Atomique (CEA), DAM, DIF, F-91297 Arpajon, France.; Lejars A; Commissariat à l'Énergie Atomique (CEA), DAM, DIF, F-91297 Arpajon, France.; Chaleil A; Commissariat à l'Énergie Atomique (CEA), DAM, DIF, F-91297 Arpajon, France.; Bridou F; Laboratoire Charles Fabry, 2, Av. Augustin Fresnel, 91127 Palaiseau Cedex, France.; Delmotte F; Laboratoire Charles Fabry, 2, Av. Augustin Fresnel, 91127 Palaiseau Cedex, France. |
| Source: | The Review of scientific instruments [Rev Sci Instrum] 2022 Nov 01; Vol. 93 (11), pp. 113502. |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: American Institute Of Physics Country of Publication: United States NLM ID: 0405571 Publication Model: Print Cited Medium: Internet ISSN: 1089-7623 (Electronic) Linking ISSN: 00346748 NLM ISO Abbreviation: Rev Sci Instrum Subsets: MEDLINE; PubMed not MEDLINE |
| Imprint Name(s): | Publication: 1933- : Woodbury, N.Y. : American Institute Of Physics; Original Publication: 1930-1932 : Menasha, WI : Optical Society of America |
| Abstract: | During inertial confinement fusion experiments at the National Ignition Facility (NIF), a capsule filled with deuterium and tritium (DT) gas, surrounded by a DT ice layer and a high-density carbon ablator, is driven to the temperature and densities required to initiate fusion. In the indirect method, 2 MJ of NIF laser light heats the inside of a gold hohlraum to a radiation temperature of 300 eV; thermal x rays from the hohlraum interior couple to the capsule and create a central hotspot at tens of millions degrees Kelvin and a density of 100-200 g/cm3. During the laser interaction with the gold wall, m-band x rays are produced at ∼2.5 keV; these can penetrate into the capsule and preheat the ablator and DT fuel. Preheat can impact instability growth rates in the ablation front and at the fuel-ablator interface. Monitoring the hohlraum x-ray spectrum throughout the implosion is, therefore, critical; for this purpose, a Multilayer Mirror (MLM) with flat response in the 2-4 keV range has been installed in the NIF 37° Dante calorimeter. Precision engineering and x-ray calibration of components mean the channel will report 2-4 keV spectral power with an uncertainty of ±8.7%. |
| Entry Date(s): | Date Created: 20221203 Latest Revision: 20221205 |
| Update Code: | 20260130 |
| DOI: | 10.1063/5.0101695 |
| PMID: | 36461505 |
| Database: | MEDLINE |
Journal Article