Our samples are placed inside the Deuteron target, allowing us to maximize our flux of 2.7 MeV neutrons. The neutron energy can be modified by changing the relative angle of the sample.
The close proximity of our samples to the neutron source allows us to utilize a high fraction of the total neutrons produced by the device.
Future plans include raising the operating voltage and current, to increase our total neutron yield.
Campanian Ignimbrite (57 ka), Alder Creek Sanidine (1.2 Ma) and Vesuvian eruption (1939 a) samples of various grain sizes (from <15 to 125 μm) were successfully dated with the Ar/Ar technique using the HFNG.
The quasi-monoenergetic neutron spectrum of the HFNG is appealing for geochronology because contaminant nuclear reactions are minimized, improving the precision of the technique. However the reaction cross-section is poorly known in this region, which impacts experiment planning and optimization.
Deuterium ion beam optics were optimized by simulations for various extraction configurations in order to achieve a uniform neutron flux distribution and an acceptable heat load. Also, experiments were performed in order to benchmark the modeling and characterization of the HFNG.
The (n,p) and (n,a) reaction cross-sections were measured for 5 natural chlorine samples in the 2.4-2.8 MeV neutron energy range. These measurements are essential to the design of chloride-based molten salt reactors because they determine the level of chlorine-37 enrichment required for criticality.
Cross sections for the 47Ti(n,p)47Sc and 64Zn(n,p)64Cu reactions have been measured for quasi-monoenergetic DD neutrons produced by the HFNG. The study was motivated by interest in the production of 47Sc and 64Cu as emerging medical isotopes, highlighting the utility of compact, DD-based neutron sources for the production of radionuclides for medical applications.
The natNi(n,p) reaction is a common fast neutron fluence monitor due to its high cross-section and long half-life. The HFNG has been adapted to perform high-resolution cross-section measurements, and the Ni(n,p) reaction was measured as a test of this capability.
Professor Bernstein is the Nuclear Data Group Leader at Lawrence Berkeley National Laboratory (LBNL). He leads the Data Evaluation for Applied Nuclear Science (DEANS) project at UC-Berkeley as a part of the US Nuclear Data Program. Dr. Bernstein is an advisor to the Nuclear Data Services Section of the International Atomic Energy Agency.
Dr. Batchelder is the scientific facility manager for the High Flux Neutron Generator. He is an Assistant Research Engineer in the LBNL/UC-Berkeley Nuclear Data group and a nuclear structure evaluator with more than 20 years of experience measuring the properties of unstable nuclei using radioactive beams and decay spectroscopy.
Jon is a Ph.D. student in the UC Berkeley department of Nuclear Engineering. He maintains and operates the HFNG, and his research interests are in nuclear data, Monte-Carlo methods and medical isotope production. He also performs experiments at the 88" cyclotron at LBNL, and when he's not measuring cross-sections you can find him skiing at Lake Tahoe.
Max is completing his bachelor's in Nuclear Engineering following an eighteen year career in software development writing high-speed decision systems for Fortune 500 companies. He currently supports HFNG operations in the group's nuclear structure investigations, but his near-term goal is pursuing PhD studies in fusion plasma geometries, plasma-material interactions, and snowflake divertor configurations.
I'm a Chemical/Nuclear Engineering undergraduate eager to get into research. My research interests are anything you're willing to explain to me and my career goals are either working at a National Lab or building a Chocolate factory.
Future Goals: I hope to serve in the U.S. submarine force and eventually design/work with small modular reactors.
Recent research includes building a Luminosity detector for the CERN LHC, studying neutrinos for the IceCube collaboration, and designing and building a high resolution tracking detector for STAR at the RHIC accelerator. I am also a Affiliate Staff Scientist at Lawrence Berkeley National Laboratory.
Professional engineer (nuclear, electrical, mechanical). Current focus is on HFNG safety and operation, cooling system improvements, and target design. Also an Affiliate Staff Scientist at Lawrence Berkeley National Laboratory.