A5037120733- Nuclear physics research studies
- Advanced Radiotherapy Techniques
- Nuclear Physics and Applications
- Astronomical and nuclear sciences
- Microbial Metabolites in Food Biotechnology
- Radiopharmaceutical Chemistry and Applications
- Food composition and properties
- Radiation Dose and Imaging
- Phytase and its Applications
- Radioactive element chemistry and processing
- Atomic and Molecular Physics
- Nonmelanoma Skin Cancer Studies
- Advances in Oncology and Radiotherapy
- Nuclear Materials and Properties
- Cutaneous Melanoma Detection and Management
- Polysaccharides Composition and Applications
- Radiation Therapy and Dosimetry
- Nuclear reactor physics and engineering
- Rare-earth and actinide compounds
- Nail Diseases and Treatments
- Advanced X-ray and CT Imaging
- Heavy Metals in Plants
- Seed and Plant Biochemistry
- Superconducting Materials and Applications
- X-ray Spectroscopy and Fluorescence Analysis
European Federation of Allergy and Airways Diseases Patients Associations
2025
UC San Diego Health System
2024
University of California, San Diego
2011-2022
University of Zagreb
2002-2014
Radiation Oncology Associates
2012
Freedom to Live
2011
University of California, Berkeley
2006-2011
Lawrence Berkeley National Laboratory
2006-2011
University of California San Diego Medical Center
2011
Independent verification of the production element 114 in reaction 244-MeV ;{48}Ca with ;{242}Pu is presented. Two chains time- and position-correlated decays have been assigned to ;{286}114 ;{287}114. The observed decay modes, half-lives, energies agree published results. measured cross sections at a center-of-target energy 244 MeV for ;{242}Pu(;{48}Ca,3-4n);{287,286}114 reactions were 1.4_{-1.2};{+3.2} pb each, which are lower than reported values.
The new, neutron-deficient, superheavy element isotope ²⁸⁵114 was produced in ⁴⁸Ca irradiations of ²⁴²Pu targets at a center-of-target beam energy 256 MeV (E*=50 MeV). α decay ²⁸⁵114was followed by the sequential four daughter nuclides, 281Cn, 277Ds, 273Hs, and 269Sg. 265Rf observed to spontaneous fission. measured α-decay Q values were compared with those from macroscopic-microscopic nuclear mass model give insight into shell effects. The²⁴²Pu (⁴⁸Ca,5n²)²⁸⁵114 cross section 0.6(-0.5)+0.9 pb.
To characterize the stacked and staggered dual-layer multileaf collimator (MLC) on HalcyonTM system.The novel MLC assembly was reviewed compared to widely used MillenniumTM 120-leaf system. We investigated positioning stability over 70 days using Machine Performance Check (MPC) data. evaluated leaf transmission, penumbra, end effect, edge effect. Leaf transmission through distal, proximal, both layers measured with a Farmer chamber, by comparing an open closed field. penumbra film for three...
Antioxidant activity, gastrointestinal solubility of polyphenols and formation different classes Maillard reaction products (MRPs) that occurs during thermal processing carob powder was investigated in relation to roasting time-roasting temperature combinations applied. Principal component analysis (PCA) used group powders with the aim proposing optimal conditions for obtaining one highest biological activity can be expected after undergoing simulation digestion. Results showed antioxidant...
Isotopes of rutherfordium ($^{258\ensuremath{-}261}\mathrm{Rf}$) were produced in irradiations $^{238}\mathrm{U}$ targets with $^{26}\mathrm{Mg}$ beams. Excitation functions measured for the $4n,5n$, and $6n$ exit channels. Production $^{261}\mathrm{Rf}$ $3n$ channel a cross section ${28}_{\ensuremath{-}26}^{+92}$ pb was observed. $\ensuremath{\alpha}$-decay $^{258}\mathrm{Rf}$ observed first time an $\ensuremath{\alpha}$-particle energy 9.05 \ifmmode\pm\else\textpm\fi{} 0.03 MeV...
Abstract Hepatitis B is the single most common cause of liver cancer, affecting > 250 million people worldwide (mostly in resource limited communities) and killing 1 annually. The condition marked by poor rates diagnosis (14%) treatment (8% eligible individuals). As with many health conditions, engagement affected community crucial for designing, promoting, advocating effective solutions system. However, remains difficult instances due to variable understanding roles, capacities,...
Excited states in 256Rf were populated via the 208Pb(50Ti,2n) fusion–evaporation reaction. Delayed γ-ray and electron decay spectroscopy was performed three isomeric have been identified. A fourth low-energy nonyrast state identified from of one higher lying isomers. The are interpreted as multi-quasiparticle excitations.Received 7 December 2007DOI:https://doi.org/10.1103/PhysRevC.79.031303©2009 American Physical Society
Four isotopes of rutherfordium, $^{254\ensuremath{-}257}\mathrm{Rf}$, were produced by the ${}^{208}\mathrm{Pb}({}^{48}\mathrm{Ti}, \mathit{xn}){}^{256\ensuremath{-}x}\mathrm{Rf}$ and ${}^{208}\mathrm{Pb}({}^{50}\mathrm{Ti}, \mathit{xn}){}^{258\ensuremath{-}x}\mathrm{Rf}$ reactions ($x=1,2$) at Lawrence Berkeley National Laboratory 88-Inch Cyclotron. Excitation functions measured for $1n$ $2n$ exit channels. A maximum likelihood technique, which correctly accounts changing cross section all...
New isotope, $^{264}\mathrm{Sg}$, was identified using the $^{238}\mathrm{U}$($^{30}\mathrm{Si}$, x$n$)$^{268\ensuremath{-}x}\mathrm{Sg}$ reaction and excitation functions for $^{262\ensuremath{-}264}\mathrm{Sg}$ were measured. $^{264}\mathrm{Sg}$ decays by spontaneous fission with a half-life of ${37}_{\ensuremath{-}11}^{+27}$ ms. The branch 0.9-s $^{263}\mathrm{Sg}$ measured first time found to be (13\ifmmode\pm\else\textpm\fi{}8)%. $^{262}\mathrm{Sg}$ ${15}_{\ensuremath{-}3}^{+5}$ ms...
Excitation functions for the $1n$ and $2n$ exit channels of ${}^{208}\mathrm{Pb}({}^{51}\mathrm{V},\mathit{xn}){}^{259\text{\ensuremath{-}}x}\mathrm{Db}$ reaction were measured. A maximum cross section channel ${2070}_{\ensuremath{-}760}^{+1100}$ pb was measured at an excitation energy 16.0 $\ifmmode\pm\else\textpm\fi{}$ 1.8 MeV. For channel, a ${1660}_{\ensuremath{-}370}^{+450}$ 22.0 MeV energy. The function ${}^{209}\mathrm{Bi}({}^{50}\mathrm{Ti},n){}^{258}\mathrm{Db}$ remeasured,...
The lightest isotope of Bh was produced in the new 209Bi(52Cr,n)260Bh reaction at Lawrence Berkeley National Laboratory's 88-Inch Cyclotron. Positive identification made by observation eight correlated alpha particle decay chains focal plane detector Gas-Filled Separator. 260Bh decays with a 35(-9)(+19) ms half-life emission mainly group 10.16 MeV. measured cross section 59(-20)(+29) pb is compared to model predictions. influence N=152 and Z=108 shells on properties discussed.
Three winter wheat cultivars were grown under low-N and high-N fertilization rates over two growing seasons. In spite of smaller 1000-grain weight, the produced higher grain yields as well N trace element concentrations in both Trace increments with rate averaged 14.0% for Fe, 9.2% Zn, 19.7% Mn, 13.2% Cu, 15.1% Ni, 23.0% Cd. Only Na concentration was unaffected by fertilization, whereas Pb Cr below detection limits. Absolutely small, but significant differences existed among tested all...
The treatment of lung lesions with stereotactic body radiation therapy calls for highly conformal dose, which is evaluated by a number metrics. Lung clinical trials constrain plans gradient index. purpose this work to describe the dependence clinically achievable dose on planning target volume. Three hundred seventy-four were retrospectively reviewed and selected study. relationship between R50% volume size was observed compared against RTOG 0915 0813 constraints noting minor major...
The excitation function for the $^{208}\mathrm{Pb}(^{52}\mathrm{Cr},n)^{259}\mathrm{Sg}$ reaction has been measured using Berkeley Gas-filled Separator at Lawrence National Laboratory 88-Inch Cyclotron. maximum cross section of ${320}_{\ensuremath{-}100}^{+110}$ pb is observed a center-of-target laboratory-frame energy 253.0 MeV. In total, 25 decay chains originating from $^{259}\mathrm{Sg}$ were and properties are in good agreement with previous reports. addition, partial...
A new isotope of Hs was produced in the reaction $^{208}\mathrm{Pb}(^{56}\mathrm{Fe},n)^{263}\mathrm{Hs}$ at 88-Inch Cyclotron Lawrence Berkeley National Laboratory. Six genetically correlated nuclear decay chains have been observed and assigned to $^{263}\mathrm{Hs}$. The measured cross section ${21}_{\ensuremath{-}8.4}^{+13}$ pb 276.4 MeV lab frame center-of-target beam energy. $^{263}\mathrm{Hs}$ decays with a half-life $0.{74}_{\ensuremath{-}0.21}^{+0.48}$ ms by...
Two isomeric states have been identified in $^{255}\mathrm{Lr}$. The decay of the isomers populates rotational structures. Comparison with macroscopic-microscopic calculations suggests that lowest observed sequence is built upon $[624]9/{2}^{+}$ Nilsson state. However, microscopic cranked relativistic Hartree-Bogoliubov (CRHB) do not reproduce moment inertia within typical accuracy. This a clear challenge to theories describing heaviest elements.
Two heavy-ion induced fusion reactions producing $^{261,262}\mathrm{Bh}$ were studied using the Berkeley Gas-filled Separator at Lawrence National Laboratory 88-Inch Cyclotron. An excitation function for production of $^{262}\mathrm{Bh}$ via reaction ${}^{209}\mathrm{Bi}({}^{54}\mathrm{Cr},n){}^{262}\mathrm{Bh}$ was measured with a maximum cross section from fit to data 430 \ifmmode\pm\else\textpm\fi{} 110 pb observed compound nucleus energy 15.7 MeV. New have been 1$n$ exit channel...
The new reaction $^{208}\mathrm{Pb}(^{59}\mathrm{Co},n)^{266}\mathrm{Mt}$ was studied using the Berkeley Gas-filled Separator at Lawrence National Laboratory 88-Inch Cyclotron. A cross section of ${7.7}_{\ensuremath{-}3.3}^{+5.2}$ pb measured a compound nucleus excitation energy 14.9 MeV. decay properties $^{266}\mathrm{Mt}$ and its daughters correspond well with existing data. We compare this experimental result to transactinide formation model predictions, previously...
An isomeric one-quasineutron state, likely based on the $[725]11/{2}^{\ensuremath{-}}$ Nilsson level, was identified in $^{261}\mathrm{Sg}$ by its decay via internal conversion electrons. The state has an excitation energy of $\ensuremath{\approx}200$ keV and a half-life $9.{0}_{\ensuremath{-}1.5}^{+2.0}$ $\ensuremath{\mu}$s. highest $Z$ $A$ any nucleus which electromagnetic observed to date. A separate experiment performed $\ensuremath{\alpha}$ daughter $^{261}\mathrm{Sg}$, namely...