Rod assembly

Depending on field strengths, it can be arranged that only ions of one selected mass can pass (filter) through the rod assembly while all others are deflected to strike the rods. By changing the strengths and frequencies of electric fields, different masses can be filtered through the system to produce a mass spectrum. 

Therefore, in the RF mode, ions transmitted through the rod guide are subjected to (1) an oscillation in step with the variations of the RF field in the x,y-plane, (2) a drift or guided motion caused by the inhomogeneity of the RF field (x,y-plane), and (3) a forward motion (z-direction) due to any initial velocity of the ions on first entering the rod assembly. The separate motions... 

From Figure 49.2, it can be seen that the quadrupole assembly provides a potential well to contain the ions in their journey along the main quadrupole axis. The potential well of the quadinpole has not very steep sides and, compared with steep-sided hexapoles or higher -poles or ion tunnels, the quadrupole is not as efficient as the others in containing ions inside the rod assembly. 

The 6 Nd YAG lasers pump the DM0, preamplifier and power amplifier (Fig. 19, Friedman et al., 1998). The YAG lasers are built from commercially available flashlamp/laser rod assemblies, acousto-optic Q-switches and frequency doubling crystals (LBO and KTP). Most of the mirror mounts and crystal holders are commercial. Nd YAGs are frequency doubled to 532 nm using a nonlinear crystal. The Nd YAG rod and nonlinear crystal are both in the pump laser cavity to provide efficient frequency conversion. The 532 nm light is coupled out through a dichroic and fed to multimode fibers which transport the light to the DM0 and amplifier dye cells. 

Monoatomic copper vapor was generated by directly heating a tungsten-rod assembly around which copper wire was wrapped. The rate of metal atom deposition (10-12 K) was continuously monitored with use of an in situ quartz-crystal microbalance assembly. Cu(C2H2) and Cu(C2H2)2 were detected by spectroscopic methods. 

The lamellar—.hexagonal transformation of Zr02 is likely to be initiated first by the removal of some of the surfactant species, followed by the curling of the surfactant bilayer in order to minimize the surface/interface energy as shown in Fig. 4(a) and (b).13,15 The curled bilayers transform to cylindrical rods to further minimize the surface energy as shown in Fig. 4(c) and the cylindrical rods assemble to give the ordered hexagonal structure shown in Fig. 4(d). In order to examine... 

A few gamma irradiations were made through the courtesy of Atomic International, using the Co60 source, and the rest in the fuel rod assembly at the Ar-gonne National Laboratory. In the last case, the samples were sealed in evacuated glass ampoules. 

All you need is two pieces of pipe, a coupling, a rubber band, some wire, and a thin metal rod. Assemble everything as In the diagram The firing pin should be filed on one end. It should look like a straight-slot screwdriver. The firing pin Is used to both fire the, 22 and to poke out the fired shelL c... 

In Section III.B, theoretical and empirical mass transfer and heat transfer relations arc discussed. The theoretical relations pertain to laminar flow, because for that flow regime the governing equations can be relatively easily solved numerically. The empirical relations pertain to turbulent flow in smooth rod assemblies. In this section the implications of the nonstandard boundary conditions in a BSR are also discussed. In Section III.C, the validity of the presented relations will be illustrated using experimental data obtained for turbulent flow in a lab-scale BSR with hydraulically rough strings of beads. 

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