Main INDEX,
Monthly INDEX,
PREV,
NEXT
Make New Entry,
Make Followup Entry
User name Nue
Log entry time 13:18:20 on September 17, 2009
Entry number 185803
This entry is a followup to: 180709
Followups:
keyword=Target Thickness
Here are our target weight. From picture(Fig1,2), I estimated areas of
the targets.
------ Changeable target plate #1 ------
Position 1 : BeO (267mg, 1.764cm2) : 151.4mg/cm2
Position 2 : Chromium 52 (58.8mg, 0.479cm2 : 122.7mg/cm2) : Sugai 116mg/cm2
Position 3 : Boron 10 (39.9mg, 0.69cm2 : 57.8mg/cm2)
Position 4 : Boron 11 (48.3mg, 0.69cm2 : 70.0mg/cm2)
Positoin 5 : Carbon nat. (158.3mg, 1.81cm2 : 87.5mg/cm2 )
Position 6 : Lithium 7 (325.2mg, 0.982cm2 : ?? 331.2mg/cm2)
Thickness of Lithium is 3.9mm, using density of 0.535g/cm3,
it is 207mg/cm2. Weight of Li7 may be heavier than real value since
it had been soaked in oil.
-------------------------------------
A copy of this log entry has been emailed to: reinhold@jlab.org, nakamura@jlab.org, tangl@jlab.org, maruta@jlab.org
Figure 1 : target holder #1
Figure 2 : Li7 target
