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The authors report on the use of carbon nanofiber nanoemitters to ionize deuterium atoms for the generation of neutrons in a deuterium-deuterium reaction in a preloaded target. Acceleration voltages in the range of 50-80 kV are used. Field…

Exotic beams of short-lived radioisotopes are produced in nuclear reactions such as thermal neutron induced fission, target or projectile fragmentation and fusion reactions. For a given radioactive ion beam (RIB), different production modes…

Accelerator Physics · Physics 2009-09-25 J. A. Lettry

The optimization of the microstructure of the UCx target is a key point since many years in the field of ISOL method. The ultimate goal is to facilitate the release of the fission products, especially those with short half-lives. Fourteen…

We used residual gas analysis (RGA) to identify the species desorbed during field emission (FE) from a carbon nanotube (CNT) fiber. The RGA data show a sharp threshold for H2 desorption at an external field strength that coincides with a…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 P. T. Murray , T. C. Back , M. M. Cahay , S. B. Fairchild , B. Maruyama , N. P. Lockwood , M. Pasquali

We have deployed a new hybrid array of LaBr3, CeBr3, and BGO scintillators for detecting $\gamma$ rays at the DRAGON recoil separator at TRIUMF. The array was developed to improve $\gamma$-ray timing resolution over the existing BGO array.…

We experimentally demonstrate optical trapping of 87Rb atoms using a two-color evanescent field around an optical nanofiber. In our trapping geometry, a blue-detuned traveling wave whose polarization is nearly parallel to the polarization…

Atomic Physics · Physics 2015-08-28 J. Lee , J. A. Grover , J. E. Hoffman , L. A. Orozco , S. L. Rolston

The ability to directly measure radiative-association rate coefficients for reactions between ions and neutral molecules has long challenged chemical physics laboratories, yet radiative association is one of the most important processes…

An effective ion catcher is an important part of a radioactive beam facility that is based on in-flight production. The catcher stops fast radioactive products and emits them as singly charged slow ions. Current ion catchers are based on…

Nowadays, intense exotic beams are needed in order to study nuclei with very short half-life. To increase the release efficiency of the fission products, all the target characteristics involved must be improved (e.g. chemical composition,…

The potential of time-of-flight recoil detection in transmission geometry using pulsed keV ion beams for sensitive multi-element profiling of thin membranes and quasi-2D systems is assessed. While the time-of-flight approach allows for…

Applied Physics · Physics 2022-03-18 R. Holeňák , S. Lohmann , D. Primetzhofer

We introduce a novel thick-target concept tailored to the extraction of refractory 4d and 5d transition metal radionuclides of molybdenum, technetium, ruthenium and tungsten for radioactive ion beam production. Despite the more than 60-year…

We report the preparation of exactly one $^{87}$Rb atom and one $^{133}$Cs atom in the same optical tweezer as the essential first step towards the construction of a tweezer array of individually trapped $^{87}$Rb$^{133}$Cs molecules.…

Atomic Physics · Physics 2021-07-07 R V Brooks , S Spence , A Guttridge , A Alampounti , A Rakonjac , L A McArd , Jeremy M Hutson , Simon L Cornish

A detailed experimental and simulation study of the extraction of a 24 keV He-ion beam from an ECR ion source and the subsequent beam transport through an analyzing magnet is presented. We find that such a slow ion beam is very sensitive to…

Accelerator Physics · Physics 2015-06-04 S. Saminathan , J. P. M. Beijers , H. R. Kremers , V. Mironov , J. Mulder , S. Brandenburg

A very intense gamma beam of the Gamma Factory facility proposed at CERN can be used to generate radioactive ion beams (RIBs) with high production yields and study the structure of exotic neutron-rich nuclei. The radioactive nuclides are…

Nuclear Experiment · Physics 2021-12-15 Dragos Nichita , Dimiter Balabanski , Paul Constantin , Witold Krasny , Wieslaw Placzek

The isomer 83mKr with its half-life of 1.83 h is an ideal calibration source for a liquid noble gas dark matter experiment like the XENON project. However, the risk of contamination of the detector with traces of the much longer lived…

Instrumentation and Methods for Astrophysics · Physics 2011-10-20 V. Hannen , E. Aprile , F. Arneodo , L. Baudis , M. Beck , K. Bokeloh , A. D. Ferella , K. Giboni , R. F. Lang , O. Lebeda , H. -W. Ortjohann , M. Schumann , A. Spalek , D. Venos , C. Weinheimer

An accurate estimation of the experimental field-emission area remains a great challenge in vacuum electronics. The lack of convenient means, which can be used to measure this parameter, creates a critical knowledge gap, making it…

Applied Physics · Physics 2021-08-18 Taha Y. Posos , Oksana Chubenko , Sergey V. Baryshev

This paper proposes a dual-color grating chip design method for simultaneously capturing dual atomic clouds (87Rb and 133Cs). By simulating key parameters such as the grating period, etching depth, duty cycle, coating material, and…

Atomic Physics · Physics 2024-12-20 Lei Xu , Muming Li , Zhilong Yu , Zheyu Liu , Junyi Duan , Fang Wang , Feng Zhao , Xiaochi Liu

As global climate change severely impacts our world, there is an increasing demand to monitor trace gases with a high spatial resolution and accuracy. At the same time, these instruments need to be compact in order have constellations for…

Optics · Physics 2025-08-14 Marijn Siemons , Ralf Kohlhaas

Producing intense radioactive beams, in particular those consisting of short-lived isotopes requires the control of the release efficiency. The released fractions of 11 elements were measured on 14 samples that were characterized by various…

The Isotope mass Separator On-Line DEvice (ISOLDE) facility located at CERN, produces and transports Radioactive Ion Beams (RIBs) at low or high energy through the REX/HIE-ISOLDE linear accelerator, for nuclear physics, astrophysics,…

Accelerator Physics · Physics 2018-09-25 Niels Bidault , Jose Alberto Rodriguez , Miguel Lozano , Sergey Sadovich
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