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A high-nitrogen-concentration diamond sample was subject to 200-keV electron irradiation using a transmission electron microscope. The optical and spin-resonance properties of the nitrogen-vacancy (NV) color centers were investigated as a…

Quantum Physics · Physics 2012-08-10 Edwin Kim , Victor M. Acosta , Erik Bauch , Dmitry Budker , Philip R. Hemmer

0.5%, 1%, 3% and 5% Ce-concentration single crystals of Tl2LiLuCl6 were grown from the melt using two zone vertical Bridgman technique. X-ray induced emission spectra showed Ce3+ emission between 370 nm and 540 nm wavelength range. Energy…

Materials Science · Physics 2017-04-26 Gul Rooh , H. J. Kim , Jonghoon Jang , Sunghwan Kim

Plastic scintillators are widely used in high-energy and medical physics, often for measuring the energy of ionizing radiation. Their main disadvantage is their non-linear response to highly ionizing radiation, called ionization quenching.…

Instrumentation and Detectors · Physics 2021-02-03 Thomas Pöschl , Daniel Greenwald , Martin Jan Losekamm , Stephan Paul

Scintillation, the process of converting high-energy radiation to detectable visible light, is pivotal in advanced technologies spanning from medical diagnostics to fundamental scientific research. Despite significant advancements toward…

Anatomical motion and deformation pose challenges to the understanding of the delivered dose distribution during radiotherapy treatments. Hence, deformable image registration (DIR) algorithms are increasingly used to map contours and dose…

Medical Physics · Physics 2021-09-22 Emily Cloutier , Luc Beaulieu , Louis Archambault

The fast luminescence component of barium fluoride (BaF$_2$) crystals with a subnanosecond decay time can find wide application in particle physics and nuclear physics. However, the slow luminescence component with the 630~ns decay time…

Instrumentation and Detectors · Physics 2022-02-09 V. Baranov , Yu. I. Davydov , I. I. Vasilyev

This research considers potential dose increase in target due to cisplatin (Pt) concentration and radiation type. Cisplatin concentrations from 0.003 to 120 mM were used. Monte-Carlo simulation of Linear accelerator (Elekta Synergy) and…

Medical Physics · Physics 2020-08-26 A. A. Baulin

A 30 nm Pt thin film evaporated onto a Si wafer was sputtered by 8 keV Ar$^{+}$ ions at various ion doses. The evolution of the modified sputtered films was monitored by atomic force microscopy (AFM), high resolution scanning electron…

Materials Science · Physics 2007-05-23 P. Karmakar , D. Ghose

In laser micromachining, the ablation threshold (minimum fluence required to cause ablation) is a key performance parameter and overall indicator of the efficiency of material removal. For pulsed laser micromachining, this important…

Materials Science · Physics 2016-11-17 Reece N. Oosterbeek , Carsten Corazza , Simon Ashforth , M. Cather Simpson

Plasma outflows from gamma-ray bursts (GRB), pulsar winds, relativistic jets, and ultra-intense laser targets radiate high energy photons. However, radiation damping is ignored in conventional PIC simulations. In this letter, we study the…

Astrophysics · Physics 2007-05-23 Koichi Noguchi , Edison Liang , Kazumi Nishimura

Using a 20 MeV linear accelerator, we investigate the effects of electromagnetic radiation on the optical transparency of F8 lead glass. Specifically, we measure the change in attenuation length as a function of radiation dose. Comparing…

Instrumentation and Detectors · Physics 2012-01-20 B. D. Schaefer , R. E. Mitchell , P. McChesney , M. R. Shepherd , J. M. Frye

In low earth orbit, there are many cosmic rays composed primarily of high energy protons. These cosmic rays cause surface and bulk radiation effects, resulting in degradation of detector performance. Quantitative evaluation of radiation…

First investigations regarding dosimetric properties of the hybrid, pixelated, photon-counting Dosepix detector in the direct beam of a pulsed photon field (RQR8) for the personal dose equivalent $H\mathrm{_p(10)}$ are presented. The…

We have performed measurements of scintillation light in liquid neon, observing a signal yield in our detector as high as (3.5 $\pm$ 0.4) photoelectrons/keV. We measure pulse shape discrimination efficiency between electronic and nuclear…

Nuclear Experiment · Physics 2012-08-14 W. H. Lippincott , K. J. Coakley , D. Gastler , E. Kearns , D. N. McKinsey , J. A. Nikkel

Laser-plasma accelerators can produce ultra short electron bunches in the femtosecond to picosecond duration range, resulting in high peak dose rates in comparison with clinical accelerators. This peculiar characteristic motivates their…

Bending and vibration tests performed inside the scanning electron microscope were used to mechanically characterize high-aspect pillars grown by focused electron-beam (FEB) induced deposition from the precursor Cu(C5HF6O2)2. Supported by…

Materials Science · Physics 2009-08-28 Vinzenz Friedli , Ivo Utke , Kristian Molhave , Johann Michler

In this paper, theoretical and numerical analyses are conducted of the profiles of the planar (-110) crystallographic direction in the diamond layer doped with boron atoms. The planar profiles for periodic doping following several ideal…

Accelerator Physics · Physics 2025-06-23 Andrei V. Korol , Andrey V. Solov'yov

We present measurements of ion velocity distribution profiles obtained by laser induced fluorescence (LIF) on an explosive laser produced plasma (LPP). The spatio-temporal evolution of the resulting carbon ion velocity distribution was…

Plasma Physics · Physics 2022-10-26 R. S. Dorst , C. G. Constantin , D. B. Schaeffer , J. J. Pilgram , C. Niemann

Worldwide several radiation sources contribute to the delivered dose to the human population. This radiation also acts as natural background when detecting radiation, for instance from radioactive sources. In this work a medium-size plastic…

Instrumentation and Detectors · Physics 2017-09-20 Luis Peralta
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