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The possibility of nuclear reactions within a low voltage DC deuterium discharge with palladium electrodes is addressed. The solid-state nuclear track detector known as CR-39 was chosen to investigate the emission of energetic charged…

Nuclear Experiment · Physics 2024-02-09 Erik P. Ziehm , George H. Miley

Antineutrino induced electron capture is a resonant process that can have a larg e cross-section for beams of monochromatic antineutrinos. We calculate the cross-section of this process and investigate an experimental setup where…

High Energy Physics - Phenomenology · Physics 2010-01-06 R. G. C. Oldeman , M. Meloni , B. Saitta

Lithium 8 is a short lived beta emitter producing a high energy anti-neutrino, which is very suitable for making several measurements of fundamental quantities. It is proposed to produce Lithium 8 with a commercially available 60 MeV…

Accelerator Physics · Physics 2015-03-20 Adriana Bungau , Roger Barlow , Michael Shaevitz , Janet Conrad , Joshua Spitz

The stellar reaction rates of radiative $\alpha$-capture reactions on heavy isotopes are of crucial importance for the $\gamma$ process network calculations. These rates are usually derived from statistical model calculations, which need to…

Nuclear Experiment · Physics 2018-01-04 T. Szücs , G. G. Kiss , Gy. Gyürky , Zs. Fülöp , Z. Halász , T. Rauscher

The construction of the 60-MeV proton linac has started as a low-energy front of the KEK/JAERI Joint Project for a high-intensity proton accelerator facility at KEK. The accelerating frequency is 324 MHz. Five UHF klystrons are used as an…

Accelerator Physics · Physics 2007-05-23 S. Fukuda , A. Anami , C. Kubota , M. Kawamura , S. Yamaguchi , M. Ono , H. Nakanishi , S. Miyake , M. Sakamoto

The production of ions via laser ablation for the loading of radiofrequency (RF) ion traps is investigated using a nitrogen laser with a maximum pulse energy of 0.17 mJ and a peak intensity of about 250 MW/cm^2. A time-of-flight mass…

Atomic Physics · Physics 2013-08-01 K. Zimmermann , M. V. Okhapkin , O. A. Herrera-Sancho , E. Peik

Alpha and cluster decays are analyzed for heavy nuclei located above $^{208}$Pb on the chart of nuclides: $^{216-220}$Rn and $^{220-224}$Ra, that are also candidates for observing the $2 \alpha$ decay mode. A microscopic theoretical…

Nuclear Theory · Physics 2023-03-29 J. Zhao , J. -P. Ebran , L. Heitz , E. Khan , F. Mercier , T. Niksic , D. Vretenar

The LIGHT (Linac for Image-Guided Hadron Therapy) project was initiated to develop a modular proton accelerator delivering beam with energies up to 230 MeV for cancer therapy. The machine consists of three different kinds of accelerating…

Blazar flares have been suggested as ideal candidates for enhanced neutrino production. While the neutrino signal of $\gamma$-ray flares has been widely discussed, the neutrino yield of X-ray flares has received less attention. Here, we…

High Energy Astrophysical Phenomena · Physics 2021-12-08 S. I. Stathopoulos , M. Petropoulou , P. Giommi , G. Vasilopoulos , P. Padovani , A. Mastichiadis

Purpose: To describe a concept of a compact electron accelerator for external radiation therapy with variable energy in the range of 6 - 20 MeV, based on linotron principle. Methods: Beam dynamics simulation using the CST and MAD-X code.…

Accelerator Physics · Physics 2020-08-04 L. Yu. Ovchinnikova , V. I. Shvedunov

The Atacama Large Millimeter/submillimeter Array (ALMA) was used in 2021 to image the carbon-rich evolved star R Lep in Bands 8-10 (397-908 GHz) with baselines up to 16 km. The goal was to validate the calibration, using band-to-band (B2B)…

Electrostatic spectrometers utilized in high-resolution beta-spectroscopy studies such as in the Karlsruhe Tritium Neutrino (KATRIN) experiment have to operate with a background level of less than 10^(-2) counts per second. This limit can…

Instrumentation and Detectors · Physics 2015-06-15 N. Wandkowsky , G. Drexlin , F. M. Fränkle , F. Glück , S. Groh , S. Mertens

We measured the beta-delayed alpha-particle emission spectrum of 16N with a sensitivity for beta-decay branching ratios of the order of 10-10. The 16N nuclei were produced using the d(15N,16N)p reaction with 70 MeV 15N beams and a deuterium…

Nuclear Experiment · Physics 2008-11-26 R. H. France , E. L. Wilds , J. E. McDonald , M. Gai

Relatively low energy and very enhanced alpha-particle groups have been observed in various actinide fractions produced via secondary reactions in a CERN W target which had been irradiated with 24-GeV protons. In particular, 5.14, 5.27 and…

Nuclear Experiment · Physics 2009-04-13 A. Marinov , S. Gelberg , D. Kolb , J. L. Weil

The high-intensity proton beam of the TRIUMF 500 MeV cyclotron offers unique opportunities to produce rare isotopes by irradiating a variety of targets. In particular, the ISAC (Isotope Separation and ACceleration) facility provides the…

Accelerator Physics · Physics 2023-06-14 Peter Kunz , Jens Lassen , Corina Andreoiu , Fatima H. Garcia , Hua Yang , Valery Radchenko

A compact Liquid-Lithium Target (LiLiT) was built and tested with a high-power electron gun at Soreq Nuclear Research Center. The lithium target, to be bombarded by the high-intensity proton beam of the Soreq Applied Research Accelerator…

The characterization of plasma wakefield acceleration experiments using emitted photons from betatron radiation requires numerical models in support of instrumentation of single-shot, double-differential angular-energy spectra. Precision…

Accelerator Physics · Physics 2023-03-09 M. Yadav , C. Hansel , B. Naranjo , G. Andonian , P. Manwani , O. Apsimon , C. P. Welsch , J. B. Rosenzweig

A significant amount of alpha particles, upto $\sim$ 35 MeV are produced in the reactor environment. Alpha induced reaction on natural Zirconium, a reactor component, upto 40 MeV has been measured using stacked foil activation technique.…

Significant improvements in our understanding of nuclear $\gamma$-ray line production and instrument performance allow us to better characterize the continuum emission from electrons at energies $\gtrsim$ 300 keV during solar flares. We…

Solar and Stellar Astrophysics · Physics 2025-02-25 Gerald H. Share , Ronald J. Murphy , Brian R. Dennis , Justin D. Finke

Much is known about the processes driving accretion from protoplanetary disks onto low-mass pre-main-sequence stars (T Tauri stars). Nevertheless, it is unclear how accretion stops. To determine the accretion properties and their relation…

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