Gas filled magnet

Figure 19.4 Changes in focal plane distributions in a gas-filled magnet for the reaction involving 350-MeV 58Ni ions. (From Paul, 1989.)...

Ghiorso, A., Yashita, S., Leino, M.E., Prank, L., Kalnins, J., Armbruster, P., Dufour, J.-P., Lemmertz, P.K. SASSY, a gas-filled magnetic separator for the study of fusion reaction products. Nucl. Instrum. Methods A269, 192-201 (1988)... 

Armbruster, P., Eidens, J., Griiter, J.W., Lawin, H., Roeckl, E., Sistemich, K Are gas-filled magnetic separators a useful tool to investigate heavy fast recoils from nuclear reactions Nucl. Instrum. Methods 91, 499-507 (1971)... 

Ninov, V., Armbruster, P., HeBberger, F.P., Hofmann, S., Miinzenberg, G., Fujita, Y., Leino, M., Liittgen, A. Separation of actinide-made transurania by a gas-filled magnetic separator. Nucl. Instrum. Methods Phys. Res., Sect A 357, 486-494 (1995)... 

An alternate method of recoil collection and separation from other reaction products is the gas-filled separator. Unlike the vacuum separators SHIP at GSI or the Fragment Mass Analyzer at ANL that can only accept a limited range of charge-to-mass ratios, a gas-filled separator is a magnetic separator that is filled with a... 

Compact Fluorescent - A smaller version of standard fluorescent lamps which can directly replace standard incandescent lights. These lights consist of a gas filled tube, and a magnetic or electronic ballast. 

The region between the stars in a galaxy, termed the interstellar medium, has very low densities, but is filled with gas, dust, magnetic fields, and charged particles. 

The experiments at Dubna (Russia) and RIKEN (Japan), and LBNL Berkeley (USA) have been carried out with gas-filled separators. Gas-filled separators (Mtinzenberg 1997 Oganessian 2007) are filled with helium (GSI, RIKEN, LBNL) or hydrogen (Dubna) and maintained at a pressure of typically 0.5 mbar. A schematic view is given in O Fig. 19.8. Heavy nuclei recoil from the rotating target into the dipole magnet where they are separated... 

Layout of the Dubna gas-filled recoil separator (DGFRS) with target wheel, dipole magnet, and detector station (Oganessian 2007). A schematic view of the detector system is displayed in the upper part of the figure... 

In a gas-filled material like the lung parenchyma, the transverse relaxation time (T2) for He is shortened by the deposition of magnetic microspheres and rapid molecular diffusion through induced field distortions. This unique relaxation process is described theoretically and predicted T2-shortening is validated using pressurized He gas in a foam model of alveolar airways. " Based on the experimental findings the feasibility of imaging inhaled particulates in vivo with hyperpolarized He is examined and performance projections are formulated. 

A special-purpose, yet very useful, valve concept is represented by the terminal valve in Fig. 7.36. This valve, which can be opened or closed at the very end of a transfer line, allows a cryogenic container to be filled without possible contamination from air or moisture. Another type of valve, the helium-operated valve (not shown), has been very useful in the transfer of liquid hydrogen. This valve can be readily operated by remote control and opened and closed by helium gas. A magnetically operated valve has recently been developed specifically for use in small liquid helium transfer lines. This all-metal valve is opened by an energized coil and closes by gravity and pressure differential forces. 

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