South pole bang-time diagnostic on the National Ignition Facility
The south pole bang-time (SPBT) diagnostic views National Ignition Facility (NIF) implosions through the lower hohlraum laser entrance hole to measure the time of peak x-ray emission (peak compression) in indirect drive implosions. Five chemical-vapor-deposition (CVD) diamond photoconductive detecto...
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ftosti:oai:osti.gov:1043656 2023-07-30T04:06:52+02:00 South pole bang-time diagnostic on the National Ignition Facility MacPhee, A Edgell, D Bradley, D K Bond, E J Burns, S Callahan, D A Celeste, J Kimbrough, J Mackinnon, A J Magoon, J Eckart, M J Glebov, V Hey, D Lacielle, G Kilkenny, J Parker, J Sangster, T C Shoup, M J Stoeckl, C Thomas, T 2021-04-26 application/pdf http://www.osti.gov/servlets/purl/1043656 https://www.osti.gov/biblio/1043656 unknown http://www.osti.gov/servlets/purl/1043656 https://www.osti.gov/biblio/1043656 36 MATERIALS SCIENCE 70 PLASMA PHYSICS AND FUSION TECHNOLOGY 42 ENGINEERING ACCURACY CHEMICAL VAPOR DEPOSITION COMPRESSION DIAMONDS GRAPHITE IMPLOSIONS LASERS MIRRORS MONOCHROMATORS PLASMA DIAGNOSTICS REMOVAL RESPONSE FUNCTIONS US NATIONAL IGNITION FACILITY 2021 ftosti 2023-07-11T08:51:23Z The south pole bang-time (SPBT) diagnostic views National Ignition Facility (NIF) implosions through the lower hohlraum laser entrance hole to measure the time of peak x-ray emission (peak compression) in indirect drive implosions. Five chemical-vapor-deposition (CVD) diamond photoconductive detectors (PCD's) with different filtrations and sensitivities record the time-varying x rays emitted by the target. Wavelength-selecting highly oriented pyrolytic graphite (HOPG) crystal mirror monochromators increase the x-ray signal-to-background ratio by filtering for 11-keV emission. Diagnostic timing and the in-situ temporal instrument response function are determined from laser impulse shots on the NIF. After signal deconvolution and background removal, the bang time is determined to 45-ps accuracy. The x-ray 'yield' (mJ/sr/keV at 11 keV) is determined from the total area under the peak. Other/Unknown Material South pole SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) South Pole |
institution |
Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
36 MATERIALS SCIENCE 70 PLASMA PHYSICS AND FUSION TECHNOLOGY 42 ENGINEERING ACCURACY CHEMICAL VAPOR DEPOSITION COMPRESSION DIAMONDS GRAPHITE IMPLOSIONS LASERS MIRRORS MONOCHROMATORS PLASMA DIAGNOSTICS REMOVAL RESPONSE FUNCTIONS US NATIONAL IGNITION FACILITY |
spellingShingle |
36 MATERIALS SCIENCE 70 PLASMA PHYSICS AND FUSION TECHNOLOGY 42 ENGINEERING ACCURACY CHEMICAL VAPOR DEPOSITION COMPRESSION DIAMONDS GRAPHITE IMPLOSIONS LASERS MIRRORS MONOCHROMATORS PLASMA DIAGNOSTICS REMOVAL RESPONSE FUNCTIONS US NATIONAL IGNITION FACILITY MacPhee, A Edgell, D Bradley, D K Bond, E J Burns, S Callahan, D A Celeste, J Kimbrough, J Mackinnon, A J Magoon, J Eckart, M J Glebov, V Hey, D Lacielle, G Kilkenny, J Parker, J Sangster, T C Shoup, M J Stoeckl, C Thomas, T South pole bang-time diagnostic on the National Ignition Facility |
topic_facet |
36 MATERIALS SCIENCE 70 PLASMA PHYSICS AND FUSION TECHNOLOGY 42 ENGINEERING ACCURACY CHEMICAL VAPOR DEPOSITION COMPRESSION DIAMONDS GRAPHITE IMPLOSIONS LASERS MIRRORS MONOCHROMATORS PLASMA DIAGNOSTICS REMOVAL RESPONSE FUNCTIONS US NATIONAL IGNITION FACILITY |
description |
The south pole bang-time (SPBT) diagnostic views National Ignition Facility (NIF) implosions through the lower hohlraum laser entrance hole to measure the time of peak x-ray emission (peak compression) in indirect drive implosions. Five chemical-vapor-deposition (CVD) diamond photoconductive detectors (PCD's) with different filtrations and sensitivities record the time-varying x rays emitted by the target. Wavelength-selecting highly oriented pyrolytic graphite (HOPG) crystal mirror monochromators increase the x-ray signal-to-background ratio by filtering for 11-keV emission. Diagnostic timing and the in-situ temporal instrument response function are determined from laser impulse shots on the NIF. After signal deconvolution and background removal, the bang time is determined to 45-ps accuracy. The x-ray 'yield' (mJ/sr/keV at 11 keV) is determined from the total area under the peak. |
author |
MacPhee, A Edgell, D Bradley, D K Bond, E J Burns, S Callahan, D A Celeste, J Kimbrough, J Mackinnon, A J Magoon, J Eckart, M J Glebov, V Hey, D Lacielle, G Kilkenny, J Parker, J Sangster, T C Shoup, M J Stoeckl, C Thomas, T |
author_facet |
MacPhee, A Edgell, D Bradley, D K Bond, E J Burns, S Callahan, D A Celeste, J Kimbrough, J Mackinnon, A J Magoon, J Eckart, M J Glebov, V Hey, D Lacielle, G Kilkenny, J Parker, J Sangster, T C Shoup, M J Stoeckl, C Thomas, T |
author_sort |
MacPhee, A |
title |
South pole bang-time diagnostic on the National Ignition Facility |
title_short |
South pole bang-time diagnostic on the National Ignition Facility |
title_full |
South pole bang-time diagnostic on the National Ignition Facility |
title_fullStr |
South pole bang-time diagnostic on the National Ignition Facility |
title_full_unstemmed |
South pole bang-time diagnostic on the National Ignition Facility |
title_sort |
south pole bang-time diagnostic on the national ignition facility |
publishDate |
2021 |
url |
http://www.osti.gov/servlets/purl/1043656 https://www.osti.gov/biblio/1043656 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://www.osti.gov/servlets/purl/1043656 https://www.osti.gov/biblio/1043656 |
_version_ |
1772819806406311936 |