✦ LIBER ✦

Influence of the gap-target configuration on the measured energy loss of C-ions in Ar-gas and -plasma

✍ Scribed by K. Weyrich; H. Wahl; A. Golubev; A. Kantsyrev; M. Kulish; S. Dudin; D.H.H. Hoffmann; B. Sharkov; V. Mintsev

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 810 KB
Volume: 577
Category: Article
ISSN: 0168-9002
DOI: 10.1016/j.nima.2007.02.032

No coin nor oath required. For personal study only.

✦ Synopsis

Plasma targets for measuring energy loss and charge state distribution of heavy ions in non-ideal Ar-plasmas ðG-parameters 0.55-1.5) have been developed and the interaction with several ion species, C, Ar, Xe at 5:9 MeV=u, was studied. Here the results for 5:9 MeV=u C-ions are presented which have been understood just recently by considering the gas dynamics in the target due to the special configuration with the gap interaction zone for the plasma, which can be also simulated by the VarJet code.

📜 SIMILAR VOLUMES

Influence of the Plasma Kinetics on the

Influence of the Plasma Kinetics on the Si/C Ratio of a-SixC1-x: H Thin Films Deposited by Reactive Magnetron Sputtering of a Si Target in Ar + CH4 Gas Mixtures

✍ Sv. Statev; I. Ivanov; I. Petrov; J. Carlsson; V. Orlinov 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 730 KB

Change of the energy loss of relativisti

Change of the energy loss of relativistic heavy ions in a gadolinium target at and above the ferromagnetic Curie temperature

✍ F. Nickel; K.-H. Behr; L. Chulkov; H. Geissel; J. Klemm; O. Klepper; D. Marx; G. 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 212 KB

The energy loss dE of 250 A MeV ($52 GeV) bismuth ions in a 1 g/cm 2 poly-crystalline gadolinium target was measured with the high-resolving magnetic spectrometer FRS at GSI as a function of the target temperature T at and above the Curie temperature T C of about 19 °C. After subtraction of effects

Effects of Ar Gas Dilution in Methane Pl

Effects of Ar Gas Dilution in Methane Plasma on the Properties of Diamond-like Carbon Films

✍ Chakrabarti, K. ;Kim, J.B. ;Wilson, J.I.B. ;Lee, C. 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 93 KB 👁 2 views

Ion–molecule reactions in the gas phase.

Ion–molecule reactions in the gas phase. Collision energy influence on the competitive SNi/SN2 orientation from adduct ions of epimeric 1,2-indanediols prepared by ammonia chemical ionization

✍ C. Bourhis; M. C. Perlat; F. Fournier; J. C. Tabet 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 176 KB 👁 2 views

Under chemical ionization (CI) conditions, cis and trans 1,2-indanediols mainly react with the NH 3 /NH 4 + system via a nucleophilic substitution process. In the CI source several mechanisms can occur yielding the substituted [M + NH 4 -H 2 O] + ions at m/z 150. Collisionally activated reaction (CA

On the detection of low-energy 4He, 12C,

On the detection of low-energy 4He, 12C, 14N, 16O ions in PC foils and its use in nuclear reaction measurements

✍ G. Somogyi; I. Hunyadi; E. Koltay; L. Zolnai 📂 Article 📅 1977 🏛 Elsevier Science ⚖ 776 KB

Oxygen interaction of CdS-based gas sens

Oxygen interaction of CdS-based gas sensors with different stoichiometric compositions was studied by X-ray photoelectron spectroscopy (XPS) and thermal-desorption mass spectroscopy observations combined with conductivity measurements. Three different types of film with different atomic ratios of Cd/S were used in the study of oxygen chemisorption in a low-temperature range between 300 and 570 K. Spray pyrolysis was used for the deposition of the films on glass substrates; XPS and energy dispersive spectroscopy of X-ray together with atomic force microscopy and scanning electron microscopy were used for the characterization of the composition and structure of the films. It was possible to distinguish different temperature ranges for the thermal desorption of the different adsorbed oxygen species. A comparison of the data from XPS and mass-spectroscopy observations with conductance measurements allows to conclude that metallic surface atoms are responsible for different interactions of oxygen species with CdS surfaces.

📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 379 KB