New CC 0 π GENIE model tune for MicroBooNE
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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗
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Rapidly Viable Sustained Grid
Rapid recovery of power flow, possibly after a blackout, is a crucial need arising in scenarios that are increasingly becoming more frequent; here, solutions for rapid viability of power while the grid is being restored are urgently needed to keep critical infrastructure (CI) online. Increasingly, after the initial recovery phase, sustenance of reliable power requires assistive services to the grid for long periods of time. Even though the need is urgent, there is only sparse effort present toward a comprehensive framework/strategy for making power rapidly viable with an emphasis on sustained grid ancillary services; which is the focus of this proposal. The proposed concept envisions four phases. In the first phase, when a large portion of power is disrupted (see Figure 1(a)), emphasis is on bringing CI online with the objective of maximizing the time horizon of power viability using resources available at the CI. In the second phase (Figure 1(b)), neighborhood resources are tightly coordinated that forms the CI’s central-core (CC) to provide guaranteed viability of CI over a longer horizon. In the third phase, self-organizing power networks are expanded in a distributed layer supporting the central-core (Figure 1(c)). In the fourth phase, separate CI-networks coalesce and are controlled in a coordinated fashion to provide grid ancillary services (AS), such as primary frequency control and enhancing grid resiliency. With time, system efficiencies and penetration of renewables increase, while the time-horizon of guaranteed sustenance of CI is maximized. Under proposed work, the concept will be instantiated with a focus on medical centers as CI. Comprehensive power hardware in the loop strategies and emulated field tests will guide and validate devised solutions. A strong T2M effort to commercialize resulting technology is outlined. The proposed technology will be transformative for the grid. It will fundamentally change the way large contingencies are managed where power systems and critical infrastructure transition from being fragile to being robust using intelligent, self-organizing control for coordinating resources, enhanced resiliency and use of sustainable energy sources.
24 POWER TRANSMISSION AND DISTRIBUTION↗
Materials Data on Hg2C3I5N by Materials Project
(HgI2)2C3NI crystallizes in the monoclinic Cc space group. The structure is one-dimensional and consists of four C3NI clusters and four HgI2 ribbons oriented in the (0, 0, 1) direction. In each C3NI cluster, there are three inequivalent C+1.33+ sites. In the first C+1.33+ site, C+1.33+ is bonded in a distorted single-bond geometry to one C+1.33+ and one N3- atom. The C–C bond length is 1.22 Å. The C–N bond length is 1.30 Å. In the second C+1.33+ site, C+1.33+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.20 Å. In the third C+1.33+ site, C+1.33+ is bonded in a linear geometry to one C+1.33+ and one I1- atom. The C–I bond length is 1.97 Å. N3- is bonded in a linear geometry to two C+1.33+ atoms. I1- is bonded in a single-bond geometry to one C+1.33+ atom. In each HgI2 ribbon, Hg2+ is bonded in a distorted T-shaped geometry to three I1- atoms. There are a spread of Hg–I bond distances ranging from 2.64–3.18 Å. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in a single-bond geometry to one Hg2+ atom. In the second I1- site, I1- is bonded in a water-like geometry to two equivalent Hg2+ atoms.
36 MATERIALS SCIENCE↗
Swift BAT Loop Heat Pipe #0 Temperature Droop Problem and Solution After Its Primary Heater Controller Failure
The primary heater controller for Burst Alert Telescope (BAT) loop heat pipe (LHP) #0 failed on March 31, 2010. It has been disabled. The secondary heater circuit is operational. However the set point tolerance of the secondary heater controller is significantly out of specifications. A novel variable conductance heat pipe (VCHP) is used to pre-condition the LHP propylene liquid before it returns to the compensation chamber (CC). Due to the limit on the quantity of power switches, the LHP and VCHP temperatures are controlled by different channels of the same heater controller. For this reason, the VCHP heater controller channel is also out of specification. It caused larger tolerances in the temperature of the propylene liquid returning to the CC. As a result, there were intermittent temperature droops every 10-14 days at the coldest attitude during the eclipse. After the set point of the secondary heater controller was gradually increased from 8 C to 8.7 C, there was no temperature droop for over four months.
Choi, Michael K.↗
Study of the doubly charmed tetraquark $\mathrm{T}$ $^+_{cc}$
Quantum chromodynamics, the theory of the strong force, describes interactions of coloured quarks and gluons and the formation of hadronic matter. Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. Particles with an alternative quark content are known as exotic states. Here a study is reported of an exotic narrow state in the D 0 D 0 π + mass spectrum just below the D *+ D 0 mass threshold produced in proton-proton collisions collected with the LHCb detector at the Large Hadron Collider. The state is consistent with the ground isoscalar T$^{+}_{cc}$ tetraquark with a quark content of cc$\bar{u}\bar{d}$ and spin-parity quantum numbers J P = 1 + . Study of the DD mass spectra disfavours interpretation of the resonance as the isovector state. The decay structure via intermediate off-shell D *+ mesons is consistent with the observed D 0 π+ mass distribution. To analyse the mass of the resonance and its coupling to the D*D system, a dedicated model is developed under the assumption of an isoscalar axial-vector T$^{+}_{cc}$ state decaying to the D*D channel. Using this model, resonance parameters including the pole position, scattering length, effective range and compositeness are determined to reveal important information about the nature of the T$^{+}_{cc}$ state. In addition, an unexpected dependence of the production rate on track multiplicity is observed.
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗
Materials Data on Fe(CO)5 by Materials Project
Fe(CO)5 crystallizes in the monoclinic Cc space group. The structure is zero-dimensional and consists of twenty formaldehyde molecules and four iron molecules.
36 MATERIALS SCIENCE↗
LQCD NN S-wave @ SU(3) on C103
This data contains lattice QCD data files for one- and two-nucleon correlation functions on the C103 ensemble. It also contains lattice QCD data sets needed to compute the HAL QCD potential on the same configurations. 'LQCD NN S-wave @ SU(3) on C103' Copyright (c) 2025, The Regents of the University of California, through Lawrence Berkeley National Laboratory (subject to receipt of any required approvals from the U.S. Dept. of Energy). All rights reserved. This work is openly licensed via CC BY 4.0.
73 NUCLEAR PHYSICS AND RADIATION PHYSICS↗
Materials Data on H6C(SN)2 by Materials Project
CNH2S2NH4 crystallizes in the monoclinic Cc space group. The structure is zero-dimensional and consists of eight ammonium molecules and eight dithiocarbamic acid molecules.
36 MATERIALS SCIENCE↗
Activation of methane by U + studied by guided ion beam tandem mass spectrometry and quantum chemistry
Reaction pathways of all products formed in the U + + CH 4 (CD 4 ) reaction were explored as a function of kinetic energy using guided ion beam tandem mass spectrometry and quantum chemical calculations. UH + , UC + , UCH + , UCH 2 + , and UCH 3 + (and their perdeuterated analogues) are formed in endothermic reactions. In both systems, the UCH 2 + (UCD 2 + ) dehydrogenated product was the dominant product in the low-energy region, whereas the UH + (UD + ) hydride product became predominant at high energies. The kinetic energy behavior of the various products is consistent with a common intermediate of H–U + –CH 3 (D–U + –CD 3 ). Here, the kinetic energy dependence of all product cross sections was modeled to obtain experimental bond dissociation energies at 0 K (in eV): D 0 (U + –H) = 2.42 ± 0.10, D 0 (U + –C) = 3.95 ± 0.12, D 0 (U + –CH) = 4.91 ± 0.09, D 0 (U + –CH 2 ) = 4.11 ± 0.04, and D 0 (U + –CH 3 ) = 2.41 ± 0.09. Quantum chemical calculations using the UCCSD(T) and UB3LYP approaches with the cc-pwCVXZ-PP basis set with MDF-60 pseudopotential for U + and the aug-cc-pCVXZ and aug-cc-pVXZ (X = T, Q) basis set for carbon and hydrogen, respectively, validate the experimental bond dissociation energies and outline the potential energy surface for all reactions observed. In addition, spin–orbit corrections of the bond energies for all products were calculated at a CASSCF-CASPT2-RASSI level.
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Elucidating Anomalous Intensity Ratios in Chlorine L-Edge X-ray Absorption Spectroscopy: Multiplet Effects and Core Rydberg Transitions
A relativistic core–valence-separated equation-of-motion coupled cluster (CVS-EOM-CC) study of chlorine L 2,3 -edge X-ray absorption near-edge structure (XANES) spectra using CH 3 Cl and CH 2 ICl as representative molecules is reported. The nearly identical intensity for the main features in the L 2 - and L 3 -edge XANES spectra is attributed to multiplet effects and the overlap between core–valence and core Rydberg transitions. The multiplet effects originating from the interaction between the core hole and the C–Cl σ* orbitals account for around half of the deviation of the L 3 and L 2 intensity ratio from the 2:1 ratio of the numbers of 2p 3/2 and 2p 1/2 electrons. The 2p 3/2 → 4s core Rydberg transitions are shown to overlap with the 2p 1/2 → σ* transitions and contribute to the other half of the intensity anomaly. Here, we demonstrate that triple excitations in CVS-EOM-CC calculations play important roles in accurate simulation of the overlap between the 2p 1/2 → σ* and 2p 3/2 → 4s transitions.
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Inelastic Triatom-Atom Quantum Close-Coupling Dynamics in Full Dimensionality: All Rovibrational Mode Quenching of Water Due to the H Impact on a Six-Dimensional Potential Energy Surface
The rovibrational level populations, and subsequent emission in various astrophysical environments, are driven by inelastic collision processes. The available rovibrational rate coefficients for water have been calculated using a number of approximations. We present a numerically exact calculation for the rovibrational quenching for all water vibrational modes due to collisions with atomic hydrogen. The scattering theory implements a quantum close-coupling (CC) method on a high level ab initio six-dimensional (6D) potential energy surface (PES). Total rovibrational quenching cross sections for excited bending levels were compared with earlier results on a 4D PES with the rigid-bender closecoupling (RBCC) approximation. General agreement between 6D-CC and 4DRBCC calculations are found, but differences are evident including the energy and amplitude of low-energy orbiting resonances. Quenching cross sections from the symmetric and asymmetric stretch modes are provided for the first time. The current 6D-CC calculation provides accurate inelastic data needed for astrophysical modeling.
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Iron-absorption band analysis for the discrimination of iron-rich zones
The author has identified the following significant results. Study has concentrated on the two primary aspects of the project, structural analysis through evaluation of lineaments and circular features and spectral analyses through digital computer-processing techniques. Several previously unrecognized lineaments are mapped which may be the surface manifestations of major fault or fracture zones. Two of these, the Walker Lane and the Midas Trench lineament system, transect the predominantly NNE-NNW-trending moutain ranges for more than 500 km. Correlation of major lineaments with productive mining districts implies a genetic relationship, the 50 circular or elliptical features delineated suggest a related role for Tertiary volcanism. Color-ratio composites have been used to identify limonitic zones and to discriminate mafic and felsic rock by combing diazo color transparencies of three different ratios. EROS Data Center scene identification number for color composite in this report is ER 1 CC 500. Refinement of enhancement procedures for the ratio images is progressing. Fieldwork in coordination with both spectral and structural analyses is underway.
Rowan, L. C.↗
Formulation of MS-74 white thermal-control coating and revised application procedures
Procedures are given for formulating, blending, and applying MS-74 white thermal-control coating and CC-1 primer to spacecraft structures. Improved ultraviolet stability, higher emittance and low absorptivity, and enhanced adhesion characteristics result from the revised procedures.
Shai, M. C.↗
Identification of cosmogenic argon components in Allende by laser microprobe
New techniques are presented for using a laser microprobe to determine the spallation argon systematics of calcium-aluminum inclusions. The Ar-38(s) amounts determined for melilite and anorthite in a coarse-grained inclusion from Allende are 2.9 x 10 to the -8th and 1.3 x 10 to the -8th cc/g, respectively. The ratio of the amounts is consistent with the calcium contents of these two minerals. The Ar-38(s) amount determined for a fine-grained inclusion from Allende is 1.1 x 10 to the -8th cc/g. Calcium and potassium amounts were determined from irradiated samples of the same inclusions so that production of Ar-38 from calcium during the cosmic ray exposure of Allende could be determined for these samples. The production observed was 12.4 + or - 2.1 x 10 to the -8th cc STP Ar-38/g Ca for the coarse-grained inclusion and 9.9 + or - 2.4 cc STP Ar-38/g Ca for the fine-grained inclusion. No evidence of unusual exposure was observed in the two inclusions studied.
Kirschbaum, C.↗
Partial Least Squares and Neural Networks for Quantitative Calibration of Laser-induced Breakdown Spectroscopy (LIBs) of Geologic Samples
The ChemCam instrument [1] on the Mars Science Laboratory (MSL) rover will be used to obtain the chemical composition of surface targets within 7 m of the rover using Laser Induced Breakdown Spectroscopy (LIBS). ChemCam analyzes atomic emission spectra (240-800 nm) from a plasma created by a pulsed Nd:KGW 1067 nm laser. The LIBS spectra can be used in a semiquantitative way to rapidly classify targets (e.g., basalt, andesite, carbonate, sulfate, etc.) and in a quantitative way to estimate their major and minor element chemical compositions. Quantitative chemical analysis from LIBS spectra is complicated by a number of factors, including chemical matrix effects [2]. Recent work has shown promising results using multivariate techniques such as partial least squares (PLS) regression and artificial neural networks (ANN) to predict elemental abundances in samples [e.g. 2-6]. To develop, refine, and evaluate analysis schemes for LIBS spectra of geologic materials, we collected spectra of a diverse set of well-characterized natural geologic samples and are comparing the predictive abilities of PLS, cascade correlation ANN (CC-ANN) and multilayer perceptron ANN (MLP-ANN) analysis procedures.
Anderson, R. B.↗
Materials Data on Cu4H24C13N7Cl by Materials Project
Cu4C5N5Cl(N(CH3)4)2 crystallizes in the monoclinic Cc space group. The structure is three-dimensional and consists of eight tetramethylammonium molecules and one Cu4C5N5Cl framework. In the Cu4C5N5Cl framework, there are four inequivalent Cu1+ sites. In the first Cu1+ site, Cu1+ is bonded to two C+0.46- and two N3- atoms to form edge-sharing CuC2N2 tetrahedra. There are one shorter (1.99 Å) and one longer (2.12 Å) Cu–C bond lengths. There is one shorter (1.94 Å) and one longer (1.95 Å) Cu–N bond length. In the second Cu1+ site, Cu1+ is bonded in a trigonal planar geometry to one C+0.46-, one N3-, and one Cl1- atom. The Cu–C bond length is 1.85 Å. The Cu–N bond length is 1.90 Å. The Cu–Cl bond length is 2.34 Å. In the third Cu1+ site, Cu1+ is bonded in a trigonal planar geometry to one C+0.46-, one N3-, and one Cl1- atom. The Cu–C bond length is 1.85 Å. The Cu–N bond length is 1.89 Å. The Cu–Cl bond length is 2.34 Å. In the fourth Cu1+ site, Cu1+ is bonded to three C+0.46- and one N3- atom to form edge-sharing CuC3N tetrahedra. There are a spread of Cu–C bond distances ranging from 1.91–2.13 Å. The Cu–N bond length is 1.95 Å. There are five inequivalent C+0.46- sites. In the first C+0.46- site, C+0.46- is bonded in a linear geometry to one Cu1+ and one N3- atom. The C–N bond length is 1.18 Å. In the second C+0.46- site, C+0.46- is bonded in a 1-coordinate geometry to two Cu1+ and one N3- atom. The C–N bond length is 1.19 Å. In the third C+0.46- site, C+0.46- is bonded in a 1-coordinate geometry to two Cu1+ and one N3- atom. The C–N bond length is 1.19 Å. In the fourth C+0.46- site, C+0.46- is bonded in a linear geometry to one Cu1+ and one N3- atom. The C–N bond length is 1.18 Å. In the fifth C+0.46- site, C+0.46- is bonded in a linear geometry to one Cu1+ and one N3- atom. The C–N bond length is 1.18 Å. There are five inequivalent N3- sites. In the first N3- site, N3- is bonded in a linear geometry to one Cu1+ and one C+0.46- atom. In the second N3- site, N3- is bonded in a linear geometry to one Cu1+ and one C+0.46- atom. In the third N3- site, N3- is bonded in a linear geometry to one Cu1+ and one C+0.46- atom. In the fourth N3- site, N3- is bonded in a linear geometry to one Cu1+ and one C+0.46- atom. In the fifth N3- site, N3- is bonded in a linear geometry to one Cu1+ and one C+0.46- atom. Cl1- is bonded in an L-shaped geometry to two Cu1+ atoms.
36 MATERIALS SCIENCE↗
Net shape fabrication of Alpha Silicon Carbide turbine components
Development of Alpha Silicon Carbide components by net shape fabrication techniques has continued in conjunction with several turbine engine programs. Progress in injection molding of simple parts has been extended to much larger components. Turbine rotors fabricated by a one piece molding have been successfully spin tested above design speeds. Static components weighing up to 4.5 kg and 33 cc in diameter have also been produced using this technique. Use of sintering fixtures significantly improves dimensional control. A new Si-SiC composite material has also been developed with average strengths up to 1000 MPa (150 ksi) at 1200 C.
Storm, R. S.↗
SRAM Based Re-programmable FPGA for Space Applications
An SRAM (static random access memory)-based reprogrammable FPGA (field programmable gate array) is investigated for space applications. A new commercial prototype, named the RS family, was used as an example for the investigation. The device is fabricated in a 0.25 micrometers CMOS technology. Its architecture is reviewed to provide a better understanding of the impact of single event upset (SEU) on the device during operation. The SEU effect of different memories available on the device is evaluated. Heavy ion test data and SPICE simulations are used integrally to extract the threshold LET (linear energy transfer). Together with the saturation cross-section measurement from the layout, a rate prediction is done on each memory type. The SEU in the configuration SRAM is identified as the dominant failure mode and is discussed in detail. The single event transient error in combinational logic is also investigated and simulated by SPICE. SEU mitigation by hardening the memories and employing EDAC (error detection and correction) at the device level are presented. For the configuration SRAM (CSRAM) cell, the trade-off between resistor de-coupling and redundancy hardening techniques are investigated with interesting results. Preliminary heavy ion test data show no sign of SEL (single event latch-up). With regard to ionizing radiation effects, the increase in static leakage current (static I(sub CC)) measured indicates a device tolerance of approximately 50krad(Si).
Wang, J. J.↗