R. L. Gustavsen
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View article: Shock initiation of the TATB-based explosive PBX-9502 heated to 76C
Shock initiation of the TATB-based explosive PBX-9502 heated to 76C Open
View article: P113-use of electromagnetic particle velocity gauges in shocked materials
P113-use of electromagnetic particle velocity gauges in shocked materials Open
View article: Shock initiation of PBX 9502, EDC-35, and LX-17
Shock initiation of PBX 9502, EDC-35, and LX-17 Open
View article: Initiation of PBX 9501 by thin flyer plates and flat-nosed rods: experiment and calculation
Initiation of PBX 9501 by thin flyer plates and flat-nosed rods: experiment and calculation Open
View article: An equation of state for polymethylpentene (PTX) including multi-shock response
An equation of state for polymethylpentene (PTX) including multi-shock response Open
View article: Double shock experiments and modeling in PBX 9502
Double shock experiments and modeling in PBX 9502 Open
View article: Update on the performance of the helium driven two-stage gun at Los Alamos
Update on the performance of the helium driven two-stage gun at Los Alamos Open
View article: Using PDV to determine projectile velocity and integrity in a two-stage light gas-gun
Using PDV to determine projectile velocity and integrity in a two-stage light gas-gun Open
View article: In-situ electromegnetic gauging and its application to shock compression science and detonation physcis
In-situ electromegnetic gauging and its application to shock compression science and detonation physcis Open
View article: Application of photonic doppler velocimetry (PDV) to shock and detonation physics experiments
Application of photonic doppler velocimetry (PDV) to shock and detonation physics experiments Open
View article: Detonation wave profiles measured in plastic bonded explosives using 1550 nm photon doppler velocimetry (PDV)
Detonation wave profiles measured in plastic bonded explosives using 1550 nm photon doppler velocimetry (PDV) Open
We present detonation wave profiles measured in two TATB based explosives and two HMX based explosives. Profiles were measured at the interface of the explosive and a Lithium-Fluoride (LiF) window using 1550 nm Photon Doppler Velocimetry (…
View article: Particle velocity measurements of the reaction zone in nitromethane
Particle velocity measurements of the reaction zone in nitromethane Open
The detonation reaction-zone length in neat, deuterated, and chemically sensitized nitromethane (NM) has been measured by using several different laser-based velocity interferometry systems. The experiments involved measuring the particle …
View article: On the characterization and mechanisms of shock initiation in heterogeneous explosives.
On the characterization and mechanisms of shock initiation in heterogeneous explosives. Open
We present a new methodology for fitting the x-t shock initiation trajectories of heterogeneous explosives. The technique is motivated by extended detonation shock dynamics (DSD) theory, which suggests a class of simple phase plane generat…
View article: IN-SITU MAGNETIC GAUGING TECHNIQUE USED AT LANL
IN-SITU MAGNETIC GAUGING TECHNIQUE USED AT LANL Open
View article: Changes to the LANL gas driven two stage gun : projectile velocity measurement and etc.
Changes to the LANL gas driven two stage gun : projectile velocity measurement and etc. Open
stage gun. It was necessary to use optical methods because electrical shorting pins damaged the projectile:, turned .the projectile causing tilted impacts, and sprayed the target with bits of broken pin. The first optical method involved c…
View article: Magnetic gauge measurements on the two-stage gun : homogeneous and heterogeneous initiation of high explosives /
Magnetic gauge measurements on the two-stage gun : homogeneous and heterogeneous initiation of high explosives / Open
One of the reasons for building our gas-driven two-stage gun at Los Alamos was to be able to do shock initiation experiments on high explosives that were too insensitive to initiate with the single-stage gun. In past ARA meetings we have d…
View article: <i>In situ</i> x-ray diffraction of high density polyethylene during dynamic drive: Polymer chain compression and decomposition
<i>In situ</i> x-ray diffraction of high density polyethylene during dynamic drive: Polymer chain compression and decomposition Open
Polymers are widely implemented materials often used for safety and security in our daily lives. However, we do not have a thorough understanding of the phase transformations of these materials when exposed to extreme condition, high strai…
View article: Carbon clusters formed from shocked benzene
Carbon clusters formed from shocked benzene Open
View article: Polysulfone shock compressed above the decomposition threshold: Velocimetry and modeling of two-wave structures
Polysulfone shock compressed above the decomposition threshold: Velocimetry and modeling of two-wave structures Open
Polysulfone was shock loaded to pressures of 14.6–26.2 GPa in a series of gas gun-driven plate-impact experiments measuring material response with embedded electro-magnetic particle velocity gauges and optical velocimetry. The embedded ele…
View article: Plate-impact experiments on the HMX-based explosive PBX 9404
Plate-impact experiments on the HMX-based explosive PBX 9404 Open
This report examines a series of 5 plate-impact experiments on the HMX-based explosive PBX 9404 (94%wt HMX, 3%wt CEF, 2.9%wt NC, 0.1%wt DPA), Lot 10102Y. These experiments were performed using single- and 2-stage gas guns at Los Alamos Nat…
View article: The Dynamic Response of Polymers Interrogated by 3rd Generation X-ray Light Sources
The Dynamic Response of Polymers Interrogated by 3rd Generation X-ray Light Sources Open
Future predictive models of materials response under extreme conditions will be increasingly phaseand microstructure-aware. As such, model development and validation will require new types of experimental data that probe responses at latti…
View article: Detonation synthesis of carbon nano-onions via liquid carbon condensation
Detonation synthesis of carbon nano-onions via liquid carbon condensation Open
View article: X-ray diffraction diagnostic paired with gas gun driven compression of polyethylene
X-ray diffraction diagnostic paired with gas gun driven compression of polyethylene Open
Understanding the kinetics of phase transitions, including decomposition from reactants to products under extreme condition events is challenging. Capturing these processes require: 1) diagnostics that probe on the timescales and at energi…
View article: FY18 J23X PSDT Final Report: Shock Initiation of PBX 9502 Lot HOL88H891-008
FY18 J23X PSDT Final Report: Shock Initiation of PBX 9502 Lot HOL88H891-008 Open
This report details a series of plate impact experiments on the insensitive explosive PBX 9502 (95% TATB, 5% Kel-F 800) with lot number HOL88H891-008. This is a ’virgin’ lot (no recycled material used), for which many detonation performanc…
View article: FY18 J23X PDZG Final Report: Double Shock Initiation of PBX 9502 Lot HOL88H891-008
FY18 J23X PDZG Final Report: Double Shock Initiation of PBX 9502 Lot HOL88H891-008 Open
Heterogeneous high explosives subjected to sub-critical shock waves are known to exhibit desensitization to later shock inputs. While it is believed that this phenomenon is due to the removal of hot spot forming features in the explosive b…
View article: Plate impact Hugoniot experiments on JP-10 jet fuel
Plate impact Hugoniot experiments on JP-10 jet fuel Open
Using gas-gun driven plate impact experiments, we have measured the Hugoniot of JP-10 jet fuel to ~15 GPa. JP-10 is C10H16 and consists of tetrahydrodicyclopentadiene isomers. The Hugoniot data is well fit using the “…
View article: Single-bunch imaging of detonation fronts using scattered synchrotron radiation
Single-bunch imaging of detonation fronts using scattered synchrotron radiation Open
A centimeter-scale field of view for transmission X-ray radiography from a sub-millimeter-focused synchrotron X-ray beam is achieved by placing a strongly scattering material upstream of the sample. Combining the scattered beam with a dete…
View article: Aqueous density fractionation of nanocarbons from colliding-wave PBX9502 detonation soot
Aqueous density fractionation of nanocarbons from colliding-wave PBX9502 detonation soot Open
The study of solid carbon (nanocarbon) nucleation and growth from detonating high explosives is limited because of the difficulty directly evaluating chemical reactions behind the shock front. Understanding the correlation between detonati…
View article: Measurement and reactive burn modeling of the shock to detonation transition for the HMX based explosive LX-14
Measurement and reactive burn modeling of the shock to detonation transition for the HMX based explosive LX-14 Open
Gas-gun driven plate-impact techniques were used to study the shock to detonation transition in LX-14 (95.5 wt % HMX, 4.5 wt % estane binder). The transition was recorded using embedded electromagnetic particle velocity gauges. Initial sho…
View article: Shock initiation of the TATB-based explosive PBX 9502 heated to 130°C
Shock initiation of the TATB-based explosive PBX 9502 heated to 130°C Open
We present gas-gun driven plate-impact shock initiation experiments on the explosive PBX 9502 (95 weight % tri-aminotrinitrobenzene, 5 weight % Kel-F800 binder) heated to 130 ± 2°C. PBX 9502 samples were heated using resistive elements, te…