Log entry time 23:52:12 on July29,2000

Entry number 48069

 




16:00 	Swing  shift starts.



Shift crew: 



Hadron angle: 27 degrees. Aerogel out of trigger;  Hadron momentum 0.703 Gev/c

Hadron strobe 820 KHz; no raster.



Time 	        Run number		Events:		      Notes



15:56		3928		1.2 M		Dead time test

16:09		3929		1.2 M		            ""	



Hadron angle ~21 degrees: Hadron strobe 1 MHz.



Time     	       Run Number		Events		    Notes



16:26		3930       		1.2 M	    	Dead time test

16:37		3931		0.034 M	      	killed -junk run

16:45		3932		1.2 M		Dead time test 	



Prescaler change: PS1: 7500; PS2: 500; PS3: 50000; PS4: 6000; PS5: 3.

Hadron angle 27 deg



Time	       Run Number		Events		Notes	 



17:02		3933		1.2 M		Dead time test

17:21		3934		0.64		Dead time test;

  						Stopped because of 

						RF problems.



Carbon target;  Hadron angle: 42.282 degree;  

Prescaler: PS1=1; PS2=500; PS3=3; PS4=6000; PS5=1.

No raster



Time	       Run Number		Events		Notes



18:15	     	3935		junk		wrong prescalers	

18:19		3936		0.4 M 		



4 cm dummy target.



Time 	      Run Number		Events		Notes



18:38		3937		0.6 M	

18:46		3938		0.2 M



15 cm dummy target.



Time	     Run Number		Events		Notes	



18:50		3939		1 M



10 cm dummy target.



18:57		3940		1 M



15 cm LH2 target; 1.5 inch FPP Carbon door opened (only 3 inch one closed); raster on.

Prescalers: PS1=1; PS2=1; PS3=1; PS4=1; PS5= 65535.

New trigger downloaded (momentum 0.703 Gev/c). 

  

Time	     Run Number		Events	



19:36		3941		0.6 M



Prescalers: PS1=7500; PS2=50; PS3=20000; PS4=3000; PS5=1.



Time	    Run Number		Events



19:41		3942		1.2 M



Prescalers: PS1=7500; PS2=500; PS3=20000; PS4=3000; PS5=1.



Time 	    Run Number		Events  		Notes



19:59		3943		0.23 M            	Stopped because of 

						absence of beam 								(vacuum problems).