High Power Laser Ablation
Presenting a potential business case for the use the power beaming to augment electric Advanced Air Mobility vehicles. Also, presenting options for NASA funding within this topic area.
HPLA↗
SEARCH · Engineering Papers
Results for “Ablative”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Z-pinch and laser-ablation-driven high-yield neutron source, LO-005-20, Year 2 of 3
Presentation to be presented during the Site-Directed Research and Development (SDRD) FY 2021 Review Meeting (Webex), September 22–23, 2021.
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND ↗
Bacteria-derived membrane vesicles to advance targeted photothermal tumor ablation
Not Available
Zhuang, Qi↗
Stereotactic Ablative Radiation Therapy to All Lesions in Patients With Oligometastatic Cancers: A Phase 1 Dose-Escalation Trial
Increasing evidence suggests that patients with a limited number of metastases benefit from SABR to all lesions. However, the optimal dose and fractionation remain unknown. This is particularly true for bone and lymph node metastases. Therefore, a prospective, single-center, dose-escalation trial was initiated.
62 RADIOLOGY AND NUCLEAR MEDICINE↗
Long-Term Results of a Phase 1 Dose-Escalation Trial and Subsequent Institutional Experience of Single-Fraction Stereotactic Ablative Radiation Therapy for Liver Metastases
We report long-term outcomes from our phase 1 dose-escalation study to determine the maximum tolerated dose of single-fraction liver SABR pooled with our subsequent single institutional experience with patients treated postprotocol at the highest dose level (40 Gy) established from the phase 1 study.
62 RADIOLOGY AND NUCLEAR MEDICINE↗
Coadministration of a Clinically Relevant Dexamethasone Dosage With Ablative Radiation Therapy Reduces Peripheral Lymphocytes But Does Not Alter In Vivo Intratumoral Lymphocyte Phenotype or Inhibit Efficacy of Radiation Therapy in a Murine Colorectal Tumor Model
Dexamethasone is commonly given during radiation therapy (RT) to manage toxicities. Our study examines if dexamethasone coadministration with RT inhibits the RT-induced antitumor T cell response in mouse.
62 RADIOLOGY AND NUCLEAR MEDICINE↗
Nonintrusive manufactured solutions for non-decomposing ablation in two dimensions
Not Available
Freno, Brian A. (ORCID:0000000290446924)↗
A critical review of the developments in molecular dynamics simulations to study femtosecond laser ablation
Not Available
Parris, George↗
Recycling of silver from CIGS solar cells using laser ablation and debonding
Not Available
Khetri, Mahantesh↗
Cryogenic Laser Ablation Reveals Short-Circuit Mechanism in Lithium Metal Batteries
Not Available
25 ENERGY STORAGE↗
Characterization of plasma and gas-phase chemistry during boron-nitride nanomaterial synthesis by laser-ablation of boron-rich targets
Formation of B 2 N molecules occurs when solid BN is utilized as feedstock for the synthesis of boron nitride nanomaterials.
Yatom, Shurik↗
Calculating shock Hugoniot and isentropes using multiphase equation of state tables and application to shock and release of diamond ablators in inertial confinement fusion implosions
Advances in shock and ramp compression techniques now allow experimental access to unprecedented extreme conditions of pressure and temperature, providing a means to test theoretical models. Here, we describe a simple methodology to compute multi-phase shock Hugoniot and isentropes using multiphase equation of state tables. We treat explicitly the phase coexistence along the phase boundary to reveal the evolution of the sample as it undergoes the phase transformation in adiabatic conditions. We illustrate the method by calculating the predicted shock and shock-and-release behavior of diamond at conditions relevant for the initial stage of inertial confinement fusion implosions.
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND↗
Systematic Source Determination and X-Ray Radiography Detection of Nonuniformities on High-Density Carbon Ablators
Recent deuterium-tritium (D-T)–layered implosion experiments at the National Ignition Facility have achieved a burning plasma and >1-MJ neutron yield. A series of repeat experiments have shown that the degree of performance is very likely dependent on capsule quality, including the quantity of what are collectively termed “high- Z particles.” These particles are detected on a custom-built radiography system, known as the Sagometer, during the final target qualification process. The term particles is misleading, as the source of these nonuniformities in the capsule images is uncertain; the term detection will be used instead. An increased number of D-T targets have been rejected at the final stages of production due to Sagometer detections. Late detections are deleterious in terms of loss of production parts, effort, and overall operating efficiency. In response, we undertook an effort to determine the origin of these detections and to ultimately mitigate target losses caused by them. Through careful testing and analysis, we have determined neither insufficient production cleanliness nor hohlraum shedding is responsible for the detections on the capsule. Here, we determined that the detections are inherent to the capsule and have made efforts to use the Zeiss Xradia to identify them earlier in the production process. While testing revealed the Xradia is not currently sufficient for identifying such particles using radiography images, we continue to look to other forms of metrology to down select the capsules early in the process.
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND ↗