Difference between revisions of "Wednesday October 23, 2013"
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- Measure radiation levels (gamma and neutron) vs beam energy and search for any activation | - Measure radiation levels (gamma and neutron) vs beam energy and search for any activation | ||
- Measure beam current with BCM0L02 and find error on the charge over the range from 1 nA to 100 µA | - Measure beam current with BCM0L02 and find error on the charge over the range from 1 nA to 100 µA | ||
| + | (please see attached note on current monitoring: [[media:TPC07.pdf]] ) | ||
[[File:mini_beamline.jpg|none|500px|500px|alt=Bubble Chamber mini-beamline]] | [[File:mini_beamline.jpg|none|500px|500px|alt=Bubble Chamber mini-beamline]] | ||
Revision as of 16:24, 23 October 2013
We will meet in TED 2561B on Wednesday October 23 at 3:00 pm EST.
For those calling in we'll use the ReadyTalk audio conference system.
1. Dial Toll-Free Number: 866-740-1260 (U.S. & Canada) 2. Enter 7-digit access code 4402297, followed by “#”
Agenda:
1- Progress at JLab:
- Chris Tennant will develop an ELEGANT model of the beamline and help characterize the beam coming out of the 1/4 cryo unit - Shaun Gregory started the design work for the experiment - Jay Benesch is designing a new dipole to achieve the requirements on absolute beam energy - George Kharashvili will help with the electron dump design and FLUKA simulation
2- A new "5 MeV" Dipole media:new_5Mev_dipole.pdf media:new_5Mev_dipole.doc
3- Planned beam studies this Fall:
- Measure beam energy in the 5D line (Bubble Chamber mini-beamline) - Measure beam properties coming out of the 1/4 cryo unit - Increase gradient of 1/4 cryo unit to achieve 8.5 MeV kinetic energy in the Injector. During PEPPo, achieved 8.25 MeV/c, or 7.75 MeV kinetic energy - Measure radiation levels (gamma and neutron) vs beam energy and search for any activation - Measure beam current with BCM0L02 and find error on the charge over the range from 1 nA to 100 µA
(please see attached note on current monitoring: media:TPC07.pdf )
Drawings: media:mini_beamline1.pdf media:mini_beamline2.pdf
4- Discuss the Bubble Chamber dead time: rates and systematic error. How long does it take to acquire one event?
5- Bubble Chamber progress at Argonne