The Fermiac or Fermi’s Trolley

Coccetti, F. (2016) The Fermiac or Fermi’s Trolley. Il nuovo cimento C, 39 (2). pp. 1-8. ISSN 1826-9885

ncc11191.pdf - Published Version

Download (898kB) | Preview
Official URL:


The Fermiac, known also as Fermi’s trolley or Monte Carlo trolley, is an analog computer used to determine the change in time of the neutron population in a nuclear device, via the Monte Carlo method. It was invented by Enrico Fermi and constructed by Percy King at Los Alamos in 1947, and used for about two years. A replica of the Fermiac was built at INFN mechanical workshops of Bologna in 2015, on behalf of the Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi”, thanks to the original drawings made available by Los Alamos National Laboratory (LANL). This reproduction of the Fermiac was put in use, and a simulation was developed.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 29 Sep 2020 16:10
Last Modified: 29 Sep 2020 16:10

Actions (login required)

View Item View Item