Open AccessExtensive penetrating cosmic ray showers
Author(s) -
D. E. Broadbent,
L. Jánossy
Publication year - 1947
Publication title -
proceedings of the royal society of london a mathematical and physical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.814
H-Index - 135
eISSN - 2053-9169
pISSN - 0080-4630
DOI - 10.1098/rspa.1947.0131
Subject(s) - cosmic ray , shielded cable , physics , shower , extension (predicate logic) , nuclear physics , cosmic cancer database , astrophysics , electrical engineering , computer science , engineering , nozzle , thermodynamics , programming language
Extensive penetrating cosmic-ray showers were recorded with an arrangement consisting of a penetrating shower setP and an extensionE containing shielded and unshielded counters. The following results were obtained: (1) The effective density integral spectrum of the showers observed is given byD (x ) =Ax -0.5 , wherex is the number of particles per m.2 . (2) The rate of shower coincidences decreases only slightly when the extension is moved from a distance of 0.5 m. to a distance of 9 m. from the main setP . (3) The ratio of the coincidences obtained with shielded and unshielded extension counters does not change noticeably with increasing separation betweenE andP . The results are based on approximately 10,000 hr. of recording.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom