From: Yuri Davydov <davydov@alph04.triumf.ca>
Date: Mon, 7 Feb 2000 20:36:45 -0700
To: e614chambers@relay.phys.ualberta.ca



 	This part shows influence of shifted cathode plane on the xt-relation.
DME at T=293K and P=760 Torr, B=2.2T and HV=-1850V were used for estimations.
XT-plot was made for different track angles and positions of cathodes at
(y=+2.00, y=-2.00), (y=+2.00, y=-1.95), (y=+2.00, y=-2.05), (y=+2.05, y=-1.95).
	XT-plot calculates drift time vs position track. For each angle
difference of the x-positions of two tracks with the same drift time was
estimated for each point.
	Attached figures show results:

Fig.1 and fig.2 - differences between ideal case and with shifted cathode
((y=+2.00, y=-2.00) and (y=2.00, y=-2.05));
Fig.3 and fig.4 - for case (y=+2.00, y=-2.00) and (y=2.00, y=-2.05);
Fig.5 and fig.6 - for case (y=+2.05, y=-1.95) and (y=1.95, y=-2.05).

Fig.7 shows coordinates of the "first cluster" and closest distanse from track
to wire for different track angles. The same is shown on fig.8 for track
angle 45 degrees and two positions of cathodes. These two figures explane
behaviour of curves on the previous figures.

Figures 9 and 10 show first cluster y-coordinate vs track x-coordinate for
45 and 60 degrees and differences of x-positions (as on fig.1-6).


--------------------------------------------------------
Yuri Davydov (davydov@triumf.ca)       (604) 222-1047 ext.6198
TRIUMF  			  FAX  (604) 222-1074
4004 Wesbrook Mall
Vancouver,  BC
Canada   V6T 2A3

Description: Fig.1 , Filename: dx_200_205_1.ps

Description: Fig.2 , Filename: dx_200_205_2.ps

Description: Fig.3 , Filename: dx_200_195_1.ps

Description: Fig.4 , Filename: dx_200_195_2.ps

Description: Fig.5 , Filename: dx_195_205_1.ps

Description: Fig.6 , Filename: dx_195_205_2.ps

Description: Fig.7 , Filename: cluster_coord.ps

Description: Fig.8 , Filename: cl_coord_200_195.ps

Description: Fig.9 , Filename: dx_200_205_45.ps

Description: Fig.10 , Filename: dx_200_205_60.ps


No Title / Yuri Davydov

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