ABSTRACT BY the method of the coincidences between three Geiger-Müller counters of 2.5 cm. diameter and 25 cm. effective length, disposed as in Fig. 1, I have carried out comparative

measurements of absorption of the hard component of cosmic particles in copper (atomic weight (_A_) = 63.57 ; atomic number (_Z_) = 29) and in lead (_A_ = 207.20 ; _Z_ = 82). Lead screens

(altogether 9 cm.) were arranged permanently between the counters, in order to exclude softer particles. Access through your institution Buy or subscribe This is a preview of subscription

content, access via your institution ACCESS OPTIONS Access through your institution Subscribe to this journal Receive 51 print issues and online access $199.00 per year only $3.90 per issue

G. Alocco, _Ricerca Scientifica_, V, 2, 91; 1934. CAS  Google Scholar  * B. Rossi, _NATURE_, 132, 173; 1933. Article  CAS  Google Scholar  Download references AUTHOR INFORMATION AUTHORS AND

AFFILIATIONS * Physical Institute, University, Padua, GIULIA ALOCCO Authors * GIULIA ALOCCO View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND

PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE ALOCCO, G. Absorption of Cosmic Particles in Copper and Lead. _Nature_ 135, 96–97 (1935).

https://doi.org/10.1038/135096b0 Download citation * Issue Date: 19 January 1935 * DOI: https://doi.org/10.1038/135096b0 SHARE THIS ARTICLE Anyone you share the following link with will be

able to read this content: Get shareable link Sorry, a shareable link is not currently available for this article. Copy to clipboard Provided by the Springer Nature SharedIt content-sharing

initiative