Difference between revisions of "Cryo-target wall contamination"

Revision as of 19:35, 28 April 2011

The normalized yield is equal to Ngood/Q/density. Here I neglected the density of the 3He gas.

Target	window thickness		Total charge	# of good evts
	upstream	downstream
He3	0.0274 cm	0.0328 cm	6.92E+8	253254
Dummy	0.1581 cm	0.1585 cm	2.16E+8	3588

Result: An estimate of 2186 events wall events remains within the cut ==> Contamination is less than 1%.

Target	window thickness		Total charge	# of good evts
	upstream	downstream
He3	0.0274 cm	0.0328 cm	?E+8	?
Dummy	0.1581 cm	0.1585 cm	?E+8	?

Result: An estimate of ? events wall events remains within the cut ==> Contamination is less than ?%.

@@ Line 1: / Line 1: @@
-== Kinematic 5.2 ==
 The normalized yield is equal to Ngood/Q/density. Here I neglected the density of the 3He gas.
+== Kinematic 5.2 ==
@@ Line 38: / Line 39: @@
 [[Image:dummy_5.2_all.gif]]
+== Kinematic 6.5 ==
+{| border="1" cellpadding="2"
+|-
+! Target
+! colspan="2" | window thickness
+! Total charge
+! # of good evts
+|-
+|
+| upstream
+| downstream
+|
+|
+|-
+| He3
+| 0.0274 cm
+| 0.0328 cm
+| ?E+8
+| ?
+|-
+| Dummy
+| 0.1581 cm
+| 0.1585 cm
+| ?E+8
+| ?
+|-
+|}
+Result: An estimate of ? events wall events remains within the cut ==> Contamination is less than ?%.
+[[Image:he3_6.5_all.gif]]
+[[Image:dummy_6.5_all.gif]]