Results 1 to 10 of about 11,364 (297)

Modeling of electron emission processes accompanying Radon-$\alpha$-decays within electrostatic spectrometers [PDF]

, 2013
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.
Drexlin, G., Fränkle, F. M., Glück, F., Groh, S., Mertens, S., Wandkowsky, N.   +5 more
core   +4 more sources

Focus presuppositions [PDF]

, 2008
This paper reviews notions related to focus and presupposition and addresses the hypothesis that focus triggers an existential presupposition. Presupposition projection behavior in certain examples appears to favor a presuppositional analysis of focus ...
Abusch, Dorit
core   +1 more source

Track Reconstruction and Performance of DRIFT Directional Dark Matter Detectors using Alpha Particles [PDF]

, 2007
First results are presented from an analysis of data from the DRIFT-IIa and DRIFT-IIb directional dark matter detectors at Boulby Mine in which alpha particle tracks were reconstructed and used to characterise detector performance--an important step ...
A. Petkov, A.StJ. Murphy, Alner, Alner, Bergstrom, Bigu, C. Ghag, Castleman, Chu, Copi, D. Loomba, D. Muna, D.P. Snowden-Ifft, E. Tziaferi, Frey, G.G. Nicklin, Goldstein, Hopke, J. Forbes, J. Turk, Leonard, Lightfoot, M. Gold, M. Robinson, Maiello, Mangiarotti, Maniyan, Martoff, McLaughlin, Morgan, N. Sanghi, N.J.C. Spooner, N.J.T. Smith, Nazaroff, Ohnuki, P. Majewski, Postendörfer, Press, S. Burgos, S.J.S. Plank, S.M. Paling, Sasse, Snowden-Ifft, Snowden-Ifft, Snowden-Ifft, Strydom, T.B. Lawson, T.J. Sumner, V.A. Kudryavtsev, Yoon   +49 more
core   +3 more sources

Why is lead so kinky? [PDF]

, 2012
We revisit the problem of the kink in the charge radius shift of neutron-rich even lead isotopes. We show that the ability of a Skyrme force to reproduce the isotope shift is determined by the occupation of the neutron 1i11/2 orbital beyond N=126 and the
Goddard, P. M., Rios, A., Stevenson, P. D.   +2 more
core   +2 more sources

Low background techniques for the Borexino nylon vessels [PDF]

, 2004
Borexino is an organic liquid scintillator underground detector for low energy solar neutrinos. The experiment has to satisfy extremely stringent low background requirements.
Pocar, A.
core   +3 more sources

A route for polonium 210 production from alpha-particle irradiated bismuth-209 target [PDF]

, 2014
A method is proposed for production of polonium-210 via the 209Bi(α, 3n)210At nuclear reaction. Bombardment of a bismuth-209 target was performed with a 37 MeV alpha-particle beam that leads to the production of astatine-210 (T1/2 = 8.1 h), which decays ...
Alliot, Cyrille, Champion, Julie, Deniaud, David, Haddad, Ferid, Mokili, Marcel, Montavon, Gilles,, Younes, Ali   +6 more
core   +4 more sources

A Monte Carlo simulation of the Sudbury Neutrino Observatory proportional counters [PDF]

, 2011
The third phase of the Sudbury Neutrino Observatory (SNO) experiment added an array of 3He proportional counters to the detector. The purpose of this Neutral Current Detection (NCD) array was to observe neutrons resulting from neutral-current solar ...
, , A Hime, A L Hallin, A W P Poon, A Wright, B Beltran, B Cai, B Monreal, C Kraus, Firestone R B, G A Cox, G Prior, H Bichsel, H Deng, H R Leslie, H Wan Chan Tseung, J A Formaggio, J C Loach, J Detwiler, J F Wilkerson, J Monroe, J Wendland, K Rielage, King R W P, Knoll G F, L C Stonehill, Lyons L, M Huang, M L Miller, M W E Smith, Martin R Oblath N S Tolich N, N S Oblath, N Tolich, Nelson W R Hirayama H Rogers D W O, Oblath N S, R G H Robertson, R Martin, S Habib, S J M Peeters, S McGee, T Van Wechel, Veenhof R, Wan Chan Tseung H S, Wilkinson D H, Ziegler J F, Ziegler J F   +46 more
core   +2 more sources

The Effects of Dissolved Methane upon Liquid Argon Scintillation Light [PDF]

, 2013
In this paper we report on measurements of the effects of dissolved methane upon argon scintillation light. We monitor the light yield from an alpha source held 20 cm from a cryogenic photomultiplier tube (PMT) assembly as methane is injected into a high-
Alexander, T., Back, H. O., Collin, G., Conrad, J. M., Greene, A., Jones, B. J. P., Katori, T., Pordes, S., Toups, M.   +8 more
core   +2 more sources

Two distinct components of the delayed single electron background signals in liquid xenon emission detectors [PDF]

, 2017
Single electron background signals with millisecond timescales are known to follow ionizing events in liquid/gas xenon emission detectors. Due to the long timescale, these signals can present a limiting background to the low-energy threshold of dark ...
Kamdin, K., Sorensen, P.
core   +2 more sources

Solution of two-center time-dependent Dirac equation in spherical coordinates: Application of the multipole expansion of the electron-nuclei interaction

, 2012
A non-perturbative approach to the solution of the time-dependent, two-center Dirac equation is presented with a special emphasis on the proper treatment of the potential of the nuclei.
A. N. Artemyev, A. Surzhykov, M. Mai, R. B. Firestone, S. R. McConnell, W. Greiner   +5 more
core   +1 more source