Difference between revisions of "Bubble Chamber Meeting Tuesday May 12, 2015"
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Line 31: | Line 31: | ||
## Tried strong magnet | ## Tried strong magnet | ||
## Will try laser beam to heat mercury droplets | ## Will try laser beam to heat mercury droplets | ||
− | # There is a discussion of using | + | # There is a discussion of using CO<sub>2</sub> instead of N<sub>2</sub>O (now we have to deal with <sup>12</sup>C(γ,α)2α background instead of <sup>14</sup>N(γ,p)<sup>13</sup>C background). |
− | # We may want to use | + | # We may want to use C<sub>3</sub>F<sub>8</sub> for our engineering run this summer. This gas has very similar operational parameters as either N<sub>2</sub>O or CO<sub>2</sub>. |
Revision as of 17:26, 12 May 2015
We will meet in TL 2221 on Tuesday May 12 at 3:30 pm EST.
For those calling in we'll use the Blue Jeans [1] audio conference system.
Phone number: 1-888-240-2560 Meeting ID: 3528502673# Meeting URL: http://bluejeans.com/3528502673
Agenda:
1- Bubble Chamber progress at Argonne
2- JLab Summer 2015 Schedule:
- Timeline: media:SAD_Summer2015_Timeline.pdf media:SAD_Summer2015_Timeline.pptx
- Task List: media:SAD_Summer2015_TaskList.pdf media:SAD_Summer2015_TaskList.docx
Notes from this meeting:
- Bubble Chamber:
- Tried few possible solutions to get rid of the mercury droplets on the inner wall of the glass cell but with no luck so far:
- Tried coating the inner glass with Teflon
- Tried tapping on glass window
- Tried strong magnet
- Will try laser beam to heat mercury droplets
- There is a discussion of using CO2 instead of N2O (now we have to deal with 12C(γ,α)2α background instead of 14N(γ,p)13C background).
- We may want to use C3F8 for our engineering run this summer. This gas has very similar operational parameters as either N2O or CO2.
- The State of Virginia reporting limit for mercury brought on-site is 10.0 lbs. This is about 4536 grams or 336 mL.
- How are we going to ship mercury to JLab? (i.e., in glass cell, or in reservoir).
- In Virginia, N2O is considered a drug.