Cross-track

Fig. 8.15 (a) Variation of pole tip structure Type / - tapered structure in both down and cross track directions Type //-tapered only in the down track direction Type III-no tapered structure, (b) Comparison of head fields for tapered main poles of various types... 

The reverse rates at an adjacent track, when the head was shifted in the cross track direction, have been also simulated. The error occurrence in this case was different from that in down track writing where the field gradient determines the discriminability of bit writing. The full shift margin in the cross track direction was less than 1/3 of that in the down track direction. The small shift margin in the cross track direction is mainly attributed to the broad field distribution in the cross track direction. Therefore, it is essential to use a write head with a high field gradient in the down track direction and a narrow field distribntion in the cross track direction. One of the solutions would be to use shield type heads. 

It was found that less decreased or even increased shift margin in the down track direction was obtained for the dots with the elongated shape compared with the square dots (solid line indicated by =D ). The dot length in down track direction, D, could be elongated to over 20 nm for dots with the size in the cross track direction, Dj, of less than 12.5 nm. At the same time, the shift margin in cross track direction is larger than that of the square dots. In this case, the dot volume can be increased so that the required H for thermal stability could be reduced. In order to... 

Fig. 9.6 Down track (DT) timing shift margin and cross track (CT) head shift margin for shapes... 

The shift margin is wider than that obtained for Karlqvist type head field in both directions. The elongation effect of dots to increase the shift margin in the cross track direction has also been verified for the multisurface head with side shields. 

Fig. 7. Variation of SAR intensity (arbitrary units) along sections normal to the spill shown in Figure la at the distances of 2.7 km (7a, top) and 34.5 km (7b, bottom) from point B (from west to east), with cross-track average of 1 km and along-track average of 50 m. The decreased SAR intensity in the spill area is due to the damping of the small-scale roughness of the sea surface. The solid lines show average radar backscatter of the sea surface west (1) and east (2) of the spill, and in the spill area (3). The length of line 4 characterizes the width of the spill...

Huang Xinwen 2009. Based on theoretical analysis and cross-track interference. Fall Accidents Security, (2) 45-47. 

Driver attempted to cross tracks directly ahead of train or streetcar... 

HEM 11 Passenger struck while crossing track at station on crossing... 

---