THE MOMENTUM SPECTRUM OF COSMIC RAYS AT A DEPTH OF 38 METRES WATER EQUIVALENT UNDERGROUND
Journal Article
·
· Proc. Roy. Soc. (London)
A direct determination was made of the cosmic-ray spectrum underground at a depth of 38 m.w.e. under Castle Rock, Nottingham. The spectrum is based on measurements of 1010 particles traversing a magnetic spectrograph having a maximum detectable momentum of 8 Bev/c. By comparing this spectrum with the ground-level spectrum the energy loss of fast mu -mesons in penetrating the 38 m.w.e. of rock was determined. It is shown that the energy loss for mu -mesons in the momentum range 7 to 15 Bev/c is as expected by theory, the collision process being responsible for most of the loss. (auth)
- Research Organization:
- Univ. of Durham, Eng.; Univ. of Nottingham
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-14-006835
- OSTI ID:
- 4179573
- Journal Information:
- Proc. Roy. Soc. (London), Journal Name: Proc. Roy. Soc. (London) Vol. Vol: A253
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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