# Ernest Walton > Irish physicist and Nobel laureate (1903-1995) **Wikidata**: [Q183631](https://www.wikidata.org/wiki/Q183631) **Wikipedia**: [English](https://en.wikipedia.org/wiki/Ernest_Walton) **Source**: https://4ort.xyz/entity/ernest-walton ## Summary Ernest Walton was an Irish physicist and Nobel laureate (1903–1995) known for his pioneering work in nuclear physics, particularly his co-discovery of the neutron in 1932. He conducted groundbreaking experiments at the Cavendish Laboratory in Cambridge, contributing to the understanding of atomic structure and earning the Nobel Prize in Physics in 1951. ## Biography - Born: October 6, 1903, in Dungannon, County Tyrone, Northern Ireland - Nationality: Irish - Education: - Trinity College Dublin (Bachelor of Arts, 1924) - Trinity College Dublin (Master of Arts, 1925) - Trinity College Dublin (Doctor of Science, 1928) - Known for: Co-discovery of the neutron and contributions to nuclear physics - Employer(s): - Trinity College Dublin (educator and researcher) - Cavendish Laboratory, University of Cambridge (researcher) - Field(s): Nuclear physics, particle physics ## Contributions - **Discovery of the Neutron (1932)**: Co-discovered the neutron with John Cockcroft, proving its existence through the bombardment of lithium with accelerated protons. This breakthrough advanced nuclear physics and laid the foundation for further research in particle physics. - **Development of the Cockcroft-Walton Generator**: Designed and built a high-voltage generator that accelerated protons to energies sufficient for nuclear transmutations, enabling experiments that led to the discovery of the neutron. - **Nobel Prize in Physics (1951)**: Awarded for his work on nuclear transmutations, particularly the transmutation of lithium into helium and hydrogen, which demonstrated the existence of the neutron. - **Hughes Medal (1951)**: Received for his contributions to physics, recognizing his experimental work in nuclear physics. - **Publications**: Authored numerous papers on nuclear physics, including key works on particle acceleration and nuclear transmutations. ## FAQs **What was Ernest Walton’s most significant scientific achievement?** Ernest Walton’s most significant achievement was the co-discovery of the neutron in 1932, which he accomplished by bombarding lithium with accelerated protons using a device he designed. This discovery was pivotal in advancing nuclear physics. **Where did Ernest Walton conduct his groundbreaking research?** Ernest Walton conducted his groundbreaking research at the Cavendish Laboratory in Cambridge, where he worked alongside John Cockcroft. This collaboration led to their landmark experiments on nuclear transmutations. **What awards did Ernest Walton receive for his work?** Ernest Walton received the Nobel Prize in Physics in 1951 for his work on nuclear transmutations and the Hughes Medal in 1951 for his contributions to physics, particularly his experimental research in nuclear physics. **What was the significance of the Cockcroft-Walton Generator?** The Cockcroft-Walton Generator was a high-voltage device designed by Ernest Walton that accelerated protons to energies sufficient for nuclear transmutations. It enabled experiments that led to the discovery of the neutron and advanced the field of nuclear physics. **How did Ernest Walton influence the field of nuclear physics?** Ernest Walton’s influence on nuclear physics was profound, as his work on nuclear transmutations and the discovery of the neutron laid the groundwork for further research in particle physics. His contributions helped shape the understanding of atomic structure and nuclear reactions. ## Why They Matter Ernest Walton’s work revolutionized nuclear physics by proving the existence of the neutron, which was a fundamental breakthrough in the field. His experiments with the Cockcroft-Walton Generator demonstrated the feasibility of nuclear transmutations, paving the way for future advancements in particle physics. Walton’s discovery earned him the Nobel Prize in Physics, solidifying his legacy as a pioneer in nuclear research. His contributions have had a lasting impact on the understanding of atomic structure and the development of nuclear technology, influencing generations of physicists and scientists. ## Notable For - Co-discovery of the neutron (1932), a landmark achievement in nuclear physics - Nobel Prize in Physics (1951) for his work on nuclear transmutations - Hughes Medal (1951) for his experimental contributions to physics - Development of the Cockcroft-Walton Generator, a critical tool for nuclear research - Pioneering work in particle physics and nuclear transmutations ## Body ### Early Life and Education - Born on October 6, 1903, in Dungannon, County Tyrone, Northern Ireland - Attended Trinity College Dublin, where he earned a Bachelor of Arts in 1924, a Master of Arts in 1925, and a Doctor of Science in 1928 - Studied under renowned physicists, including Ernest Rutherford, which shaped his early interest in nuclear physics ### Career and Research - Conducted research at the Cavendish Laboratory in Cambridge, collaborating with John Cockcroft - Designed and built the Cockcroft-Walton Generator, a high-voltage device that accelerated protons to energies sufficient for nuclear transmutations - Performed groundbreaking experiments that led to the discovery of the neutron in 1932, proving its existence through the bombardment of lithium with accelerated protons - Published numerous papers on nuclear physics, including key works on particle acceleration and nuclear transmutations ### Awards and Recognition - Awarded the Nobel Prize in Physics in 1951 for his work on nuclear transmutations, particularly the transmutation of lithium into helium and hydrogen - Received the Hughes Medal in 1951 for his contributions to physics, recognizing his experimental work in nuclear physics - Honored for his pioneering research in nuclear physics, which laid the foundation for further advancements in the field ### Legacy and Influence - Ernest Walton’s discovery of the neutron and his contributions to nuclear physics have had a lasting impact on the field - His work on nuclear transmutations and the development of the Cockcroft-Walton Generator have influenced generations of physicists and scientists - Walton’s legacy continues to inspire research in particle physics and nuclear technology, shaping the understanding of atomic structure and nuclear reactions ## References 1. Great Soviet Encyclopedia (1969–1978) 2. [Source](https://www.washingtonpost.com/archive/local/1995/06/29/physicist-ernest-walton-dies/1c03142e-7f58-4dbc-9915-0dcebf9448a2/) 3. [Source](https://www.nytimes.com/1995/06/28/obituaries/ernest-t-s-walton-91-irish-physicist-dies.html) 4. Czech National Authority Database 5. [Source](https://www.tcd.ie/Secretary/FellowsScholars/discourses/discourses/2012_V%20McBrierty%20on%20ETS%20Walton.pdf) 6. [Source](https://mapcarta.com/N5071743921) 7. Find a Grave 8. [Source](http://www.nobelprize.org/nobel_prizes/physics/laureates/1951/) 9. [Source](https://www.nobelprize.org/nobel_prizes/about/amounts/) 10. Mathematics Genealogy Project 11. International Standard Name Identifier 12. Virtual International Authority File 13. MusicBrainz 14. Encyclopædia Britannica Online 15. SNAC 16. Croatian Encyclopedia 17. Dictionary of Irish Biography 18. Freebase Data Dumps. 2013 19. nobelprize.org 20. IdRef