Proposal to Develop a Phase I External Muon Identifier (EMI) for Use with the NAL 30 $m^3$ Bubble Chamber
- Hawaii U.
- LBL, Berkeley
We propose to build a Phase I External Muon Identifier foruse with the NAL 30 ~3 bubble chamber. The Phase I EMI consistsof: l) a passive internal absorber filling the space betweenthe magnet coils and matching the coil thickness in collisionlengths (3.2 collision lengths stainless steel subtending upto 180° horizontally and weighing 20 tons), and 2) a singleactive external detector plane using proportional chambers toprovide x, y, and diagonal information. Test data summarizedin this proposal indicate.that at 4 GeV/c the Phase I EMI willreject incident pions with (94±1)% efficiency while accepting96% of the incident muons. Further, these efficiencies varyslow~y with particle momentum. The construction cost to NALof this development is estimated as $120K.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 990381
- Report Number(s):
- FERMILAB-PROPOSAL-0155; oai:inspirehep.net:873708
- Country of Publication:
- United States
- Language:
- English
Similar Records
EMI-II: a phase-two external muon identifier for the 15-foot bubble chamber at Fermilab
Test of the External Muon Identifier Efficiency