Design note of an air-cooled 2 ft x 2 ft x 10. 5 ft long muon spoiler
This note describes the construction of a muon spoiler (magnetized steel assembly) with a cross section of 2 ft by 2 ft and a length of 10.5 ft. Two such spoilers are operated in series at an average field of about 15 kGauss, from one 100 ADC, 40 V power supply. The purpose of the spoilers is to prevent muons from easily escaping beyond the muon laboratory experimental area by bending them down so that they have to pass through more earth. The spoilers reduce the muon dose rate beyond the experimental area by about a factor of 15 to 20. These types of spoilers are not precision devices. They were inexpensive to build from scrap materials using rough flame cutting methods. It took about 14 days to fabricate them.
- Research Organization:
- Fermi National Accelerator Lab., Batavia, IL (USA)
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 5550635
- Report Number(s):
- FNAL-TM-1507; ON: DE88005557
- Country of Publication:
- United States
- Language:
- English
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