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Showing 1 to 12 of 19 entries
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First Observation of a Stable Highly Dissipative Divertor Plasma Regime on the Wendelstein 7-X Stellarator.

Physical review letters

Zhang D, König R, Feng Y, Burhenn R, Brezinsek S, Jakubowski M, Buttenschön B, Niemann H, Pavone A, Krychowiak M, Kwak S, Svensson J, Gao Y, Pedersen TS, Alonso A, Baldzuhn J, Beidler CD, Biedermann C, Bozhenkov S, Brunner KJ, Damm H, Hirsch M, Giannone L, Drewelow P, Effenberg F, Fuchert G, Hammond KC, Höfel U, Killer C, Knauer J, Laqua HP, Laube R, Pablant N, Pasch E, Penzel F, Rahbarnia K, Reimold F, Thomsen H, Winters V, Wagner F, Klinger T, W-X Team.
PMID: 31386539
Phys Rev Lett. 2019 Jul 12;123(2):025002. doi: 10.1103/PhysRevLett.123.025002.

For the first time, the optimized stellarator Wendelstein 7-X has operated with an island divertor. An operation regime in hydrogen was found in which the total plasma radiation approached the absorbed heating power without noticeable loss of stored energy....

Design, capabilities, and first results of the new laser blow-off system on Wendelstein 7-X.

The Review of scientific instruments

Wegner T, Geiger B, Kunkel F, Burhenn R, Schröder T, Biedermann C, Buttenschön B, Cseh G, Drews P, Grulke O, Hollfeld K, Killer C, Kocsis G, Krings T, Langenberg A, Marchuk O, Neuner U, Nicolai D, Offermanns G, Pablant NA, Rahbarnia K, Satheeswaran G, Schilling J, Schweer B, Szepesi T, Thomsen H.
PMID: 30068134
Rev Sci Instrum. 2018 Jul;89(7):073505. doi: 10.1063/1.5037543.

We present a detailed overview and first results of the new laser blow-off system on the stellarator Wendelstein 7-X. The system allows impurity transport studies by the repetitive and controlled injection of different tracer ions into the plasma edge....

Publisher's Note: "Preparation, analysis, and application of coated glass targets for the Wendelstein 7-X laser blow-off system" [Rev. Sci. Instrum. 91, 083503 (2020)].

The Review of scientific instruments

Wegner T, Geiger B, Foest R, Jansen van Vuuren A, Winters VR, Biedermann C, Burhenn R, Buttenschon B, Cseh G, Joda I, Kocsis G, Kunkel F, Quade A, Schafer J, Schmitz O, Szepesi T.
PMID: 33003774
Rev Sci Instrum. 2020 Sep 01;91(9):099901. doi: 10.1063/5.0025007.

No abstract available.

Gene-environment interactions between HPA-axis genes and childhood maltreatment in depression: a systematic review.

Acta neuropsychiatrica

Normann C, Buttenschøn HN.
PMID: 31902387
Acta Neuropsychiatr. 2020 Jan 06;1-11. doi: 10.1017/neu.2020.1. Epub 2020 Jan 06.

OBJECTIVE: Gene-environment (GxE) interactions may comprise an important part of the aetiology of depression, and childhood maltreatment (CM), a significant stressor, has consistently been linked to depression. Hence, in this systematic review, we aimed to investigate the interaction between...

Transition between Instability and Seeded Self-Modulation of a Relativistic Particle Bunch in Plasma.

Physical review letters

Batsch F, Muggli P, Agnello R, Ahdida CC, Amoedo Goncalves MC, Andrebe Y, Apsimon O, Apsimon R, Bachmann AM, Baistrukov MA, Blanchard P, Braunmüller F, Burrows PN, Buttenschön B, Caldwell A, Chappell J, Chevallay E, Chung M, Cooke DA, Damerau H, Davut C, Demeter G, Deubner HL, Doebert S, Farmer J, Fasoli A, Fedosseev VN, Fiorito R, Fonseca RA, Friebel F, Furno I, Garolfi L, Gessner S, Gorgisyan I, Gorn AA, Granados E, Granetzny M, Graubner T, Grulke O, Gschwendtner E, Hafych V, Helm A, Henderson JR, Hüther M, Kargapolov IY, Kim SY, Kraus F, Krupa M, Lefevre T, Liang L, Liu S, Lopes N, Lotov KV, Martyanov M, Mazzoni S, Medina Godoy D, Minakov VA, Moody JT, Moon K, Morales Guzmán PI, Moreira M, Nechaeva T, Nowak E, Pakuza C, Panuganti H, Pardons A, Perera A, Pucek J, Pukhov A, Ramjiawan RL, Rey S, Rieger K, Schmitz O, Senes E, Silva LO, Speroni R, Spitsyn RI, Stollberg C, Sublet A, Topaloudis A, Torrado N, Tuev PV, Turner M, Velotti F, Verra L, Verzilov VA, Vieira J, Vincke H, Welsch CP, Wendt M, Wing M, Wiwattananon P, Wolfenden J, Woolley B, Xia G, Zepp M, Zevi Della Porta G.
PMID: 33961468
Phys Rev Lett. 2021 Apr 23;126(16):164802. doi: 10.1103/PhysRevLett.126.164802.

We use a relativistic ionization front to provide various initial transverse wakefield amplitudes for the self-modulation of a long proton bunch in plasma. We show experimentally that, with sufficient initial amplitude [≥(4.1±0.4)  MV/m], the phase of the modulation along...

Compartmentalized immune responses and the local microbiota determine mucosal and systemic immunity against SARS-CoV-2.

Cellular & molecular immunology

Buttenschön J, Vogt S, Mattner J.
PMID: 34992281
Cell Mol Immunol. 2022 Jan 07; doi: 10.1038/s41423-021-00822-5. Epub 2022 Jan 07.

No abstract available.

Experimental Observation of Proton Bunch Modulation in a Plasma at Varying Plasma Densities.

Physical review letters

Adli E, Ahuja A, Apsimon O, Apsimon R, Bachmann AM, Barrientos D, Barros MM, Batkiewicz J, Batsch F, Bauche J, Berglyd Olsen VK, Bernardini M, Biskup B, Boccardi A, Bogey T, Bohl T, Bracco C, Braunmüller F, Burger S, Burt G, Bustamante S, Buttenschön B, Caldwell A, Cascella M, Chappell J, Chevallay E, Chung M, Cooke D, Damerau H, Deacon L, Deubner LH, Dexter A, Doebert S, Farmer J, Fedosseev VN, Fior G, Fiorito R, Fonseca RA, Friebel F, Garolfi L, Gessner S, Gorgisyan I, Gorn AA, Granados E, Grulke O, Gschwendtner E, Guerrero A, Hansen J, Helm A, Henderson JR, Hessler C, Hofle W, Hüther M, Ibison M, Jensen L, Jolly S, Keeble F, Kim SY, Kraus F, Lefevre T, LeGodec G, Li Y, Liu S, Lopes N, Lotov KV, Maricalva Brun L, Martyanov M, Mazzoni S, Medina Godoy D, Minakov VA, Mitchell J, Molendijk JC, Mompo R, Moody JT, Moreira M, Muggli P, Mutin C, Öz E, Ozturk E, Pasquino C, Pardons A, Peña Asmus F, Pepitone K, Perera A, Petrenko A, Pitman S, Plyushchev G, Pukhov A, Rey S, Rieger K, Ruhl H, Schmidt JS, Shalimova IA, Shaposhnikova E, Sherwood P, Silva LO, Soby L, Sosedkin AP, Speroni R, Spitsyn RI, Tuev PV, Turner M, Velotti F, Verra L, Verzilov VA, Vieira J, Vincke H, Welsch CP, Williamson B, Wing M, Woolley B, Xia G.
PMID: 30822008
Phys Rev Lett. 2019 Feb 08;122(5):054802. doi: 10.1103/PhysRevLett.122.054802.

We give direct experimental evidence for the observation of the full transverse self-modulation of a long, relativistic proton bunch propagating through a dense plasma. The bunch exits the plasma with a periodic density modulation resulting from radial wakefield effects....

Three-view stereoscopy in dusty plasmas under microgravity: a calibration and reconstruction approach.

The Review of scientific instruments

Himpel M, Buttenschön B, Melzer A.
PMID: 21639506
Rev Sci Instrum. 2011 May;82(5):053706. doi: 10.1063/1.3589858.

A three-camera stereoscopy setup is presented that allows to reconstruct the trajectories of particles in dusty plasmas under microgravity. The calibration procedure for the three-camera setup takes the special circumstances into account that occur in close-range imaging of small...

Plasma impurities observed by a pulse height analysis diagnostic during the divertor campaign of the Wendelstein 7-X stellarator.

The Review of scientific instruments

Kubkowska M, Czarnecka A, Fornal T, Gruca M, Jabłoński S, Krawczyk N, Ryć L, Burhenn R, Buttenschön B, Geiger B, Grulke O, Langenberg A, Marchuk O, McCarthy KJ, Neuner U, Nicolai D, Pablant N, Schweer B, Thomsen H, Wegner T, Drews P, Hollfeld KP, Killer C, Krings T, Offermanns G, Satheeswaran G, Kunkel F.
PMID: 30399723
Rev Sci Instrum. 2018 Oct;89(10):10F111. doi: 10.1063/1.5038850.

The paper reports on the optimization process of the soft X-ray pulse height analyzer installed on the Wendelstein 7-X (W7-X) stellarator. It is a 3-channel system that records X-ray spectra in the range from 0.6 to 19.6 keV. X-ray...

Overview of diagnostic performance and results for the first operation phase in Wendelstein 7-X (invited).

The Review of scientific instruments

Krychowiak M, Adnan A, Alonso A, Andreeva T, Baldzuhn J, Barbui T, Beurskens M, Biel W, Biedermann C, Blackwell BD, Bosch HS, Bozhenkov S, Brakel R, Bräuer T, Brotas de Carvalho B, Burhenn R, Buttenschön B, Cappa A, Cseh G, Czarnecka A, Dinklage A, Drews P, Dzikowicka A, Effenberg F, Endler M, Erckmann V, Estrada T, Ford O, Fornal T, Frerichs H, Fuchert G, Geiger J, Grulke O, Harris JH, Hartfuß HJ, Hartmann D, Hathiramani D, Hirsch M, Höfel U, Jabłoński S, Jakubowski MW, Kaczmarczyk J, Klinger T, Klose S, Knauer J, Kocsis G, König R, Kornejew P, Krämer-Flecken A, Krawczyk N, Kremeyer T, Książek I, Kubkowska M, Langenberg A, Laqua HP, Laux M, Lazerson S, Liang Y, Liu SC, Lorenz A, Marchuk AO, Marsen S, Moncada V, Naujoks D, Neilson H, Neubauer O, Neuner U, Niemann H, Oosterbeek JW, Otte M, Pablant N, Pasch E, Sunn Pedersen T, Pisano F, Rahbarnia K, Ryć L, Schmitz O, Schmuck S, Schneider W, Schröder T, Schuhmacher H, Schweer B, Standley B, Stange T, Stephey L, Svensson J, Szabolics T, Szepesi T, Thomsen H, Travere JM, Trimino Mora H, Tsuchiya H, Weir GM, Wenzel U, Werner A, Wiegel B, Windisch T, Wolf R, Wurden GA, Zhang D, Zimbal A, Zoletnik S.
PMID: 27910389
Rev Sci Instrum. 2016 Nov;87(11):11D304. doi: 10.1063/1.4964376.

Wendelstein 7-X, a superconducting optimized stellarator built in Greifswald/Germany, started its first plasmas with the last closed flux surface (LCFS) defined by 5 uncooled graphite limiters in December 2015. At the end of the 10 weeks long experimental campaign...

Compartmentalized immune responses and the local microbiota determine mucosal and systemic immunity against SARS-CoV-2.

Cellular & molecular immunology

Buttenschön J, Vogt S, Mattner J.
PMID: 34992281
Cell Mol Immunol. 2022 Jan 07; doi: 10.1038/s41423-021-00822-5. Epub 2022 Jan 07.

No abstract available.

DNA Methylation at the Neonatal State and at the Time of Diagnosis: Preliminary Support for an Association with the Estrogen Receptor 1, Gamma-Aminobutyric Acid B Receptor 1, and Myelin Oligodendrocyte Glycoprotein in Female Adolescent Patients with OCD.

Frontiers in psychiatry

Nissen JB, Hansen CS, Starnawska A, Mattheisen M, Børglum AD, Buttenschøn HN, Hollegaard M.
PMID: 27047397
Front Psychiatry. 2016 Mar 18;7:35. doi: 10.3389/fpsyt.2016.00035. eCollection 2016.

Obsessive-compulsive disorder (OCD) is a neuropsychiatric disorder. Non-genetic factors and their interaction with genes have attracted increasing attention. Epigenetics is regarded an important interface between environmental signals and activation/repression of genomic responses. Epigenetic mechanisms have not previously been examined...

Showing 1 to 12 of 19 entries