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Chadwick: evidence for the neutron

Interpreted recoil measurements from penetrating beryllium radiation as evidence for a neutral particle with mass close to the proton, testing that account against the high-energy photon alternative.

What is recorded here?

Interpreted recoil measurements from penetrating beryllium radiation as evidence for a neutral particle with mass close to the proton, testing that account against the high-energy photon alternative.

Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.

Scientific scope

This record begins with the February 1932 letter, which states its evidence and remaining uncertainty. It is distinct from the longer June report and later neutron theory. Bothe, the Joliot-Curies and Feather’s experimental roles are acknowledged in the source; they are not added to the letter’s byline. WRS has not reproduced the measurements.

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People and systems

James Chadwick

Listed source contributors; individual labor shares are not measured

Research locations and affiliations

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Documented countries / regions: United Kingdom

Chadwick’s 1932 discovery at the Cavendish Laboratory, University of Cambridge, UK; dated laboratory history.

English catalogue narrative

Chadwick: evidence for the neutron

Interpreted recoil measurements from penetrating beryllium radiation as evidence for a neutral particle with mass close to the proton, testing that account against the high-energy photon alternative.

Scientific scope

This record begins with the February 1932 letter, which states its evidence and remaining uncertainty. It is distinct from the longer June report and later neutron theory. Bothe, the Joliot-Curies and Feather’s experimental roles are acknowledged in the source; they are not added to the letter’s byline. WRS has not reproduced the measurements.

Reading status

This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.

People and systems

James Chadwick

Listed source contributors; individual labor shares are not measured

Original sources