Dayton Project

Delmarsecret operationstop-secret lab
The Dayton Project was a research and development project to produce polonium during World War II, as part of the larger Manhattan Project to build the first atomic bombs.wikipedia
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Dayton, Ohio

DaytonDayton, OHDayton area
Work took place at several sites in and around Dayton, Ohio.
Like other cities across the country, Dayton was heavily involved in the war effort during World War II. Several locations around the city hosted the Dayton Project, a branch of the larger Manhattan Project, to develop polonium triggers used in early atomic bombs.

Charles Allen Thomas

Charles A. ThomasCharles Thomas
The Dayton Project began in 1943 when Monsanto's Charles Allen Thomas was recruited by the Manhattan Project to coordinate the plutonium purification and production work being carried out at various sites.
He also coordinated development of techniques to industrially refine polonium for use with beryllium in the triggers of atomic weapons in the Manhattan Project's Dayton Project, part of which was conducted on the estate of his wife's family.

Monsanto

Monsanto CompanyCalgeneMonsanto Industrial Chemicals Co.
The Dayton Project began in 1943 when Monsanto's Charles Allen Thomas was recruited by the Manhattan Project to coordinate the plutonium purification and production work being carried out at various sites.
To that end, Monsanto operated the Dayton Project, and later Mound Laboratories, and assisted in the development of the first nuclear weapons.

Miamisburg, Ohio

MiamisburgMiamisburg MoundMiami Township
It ran from 1943 to 1949, when the Mound Laboratories were completed in nearby Miamisburg, Ohio, and the work moved there.
The Dayton area had supported numerous secret operations for the War Department during World War II.

United Theological Seminary

Bonebrake Theological SeminaryBonebrake SeminaryUnited Theological Seminary Foundation
A laboratory site was found at 1601 W. First Street that had originally been constructed to house the Bonebrake Seminary.
In 1943, the United States government established a top-secret testing site at the Bonebrake Theological Seminary for the Dayton Project, which was part of the broader Manhattan Project, where research was conducted on the creation of an atomic bomb and polonium was produced that would eventually be used in the atomic bomb that was dropped on Nagasaki, Japan, on August 9, 1945.

Mound Laboratories

Mound PlantMound LaboratoryMound for the Weapons Design Agency
It ran from 1943 to 1949, when the Mound Laboratories were completed in nearby Miamisburg, Ohio, and the work moved there.
The laboratory grew out of the World War II era Dayton Project (a site within the Manhattan Project) where the neutron generating triggers for the first plutonium bombs were developed.

Polonium

Popolonium-210Po-210
The Dayton Project was a research and development project to produce polonium during World War II, as part of the larger Manhattan Project to build the first atomic bombs.
In the United States, polonium was produced as part of the Manhattan Project's Dayton Project during World War II.

Oakwood, Montgomery County, Ohio

OakwoodOakwood, Ohio
By 1944, space was running short, and Monsanto began negotiations to acquire the Runnymede Playhouse in the wealthy residential Dayton suburb of Oakwood.
During World War II, the Runnymede Playhouse in Oakwood hosted Unit IV of the Dayton Project.

Harold E. Talbott

Harold E. Talbott, Jr.H. E. TalbottHarold Elstner Talbott Jr.
The estate was owned by the Talbott Realty Company, which was controlled by Thomas's wife's family.
During World War II, the Runnymede Playhouse on the Talbott family estate in a residential neighborhood of Oakwood, Montgomery County, Ohio (a suburb of Dayton) hosted the Dayton Project (the part of the Manhattan Project involved in creating the neutron-generating triggers for the first atomic bombs from radioactive polonium).

Manhattan Project

atomic bomb projectdevelopment of the atomic bombatomic bomb
The Dayton Project was a research and development project to produce polonium during World War II, as part of the larger Manhattan Project to build the first atomic bombs.
This work with the chemistry and metallurgy of radioactive polonium was directed by Charles Allen Thomas of the Monsanto Company and became known as the Dayton Project.

Project Y

Los AlamosLos Alamos Laboratory
Scientists at the Los Alamos Laboratory calculated that a plutonium bomb would require a neutron initiator.
This work with the chemistry and metallurgy of radioactive polonium was directed by Charles Allen Thomas of the Monsanto Company and became known as the Dayton Project.

George Koval

The fact that polonium was used as an initiator was classified until the 1960s, but George Koval, a technician with the Manhattan Project's Special Engineer Detachment, penetrated the Dayton Project as a spy for the Soviet Union.
Koval was transferred from Oak Ridge to a top-secret lab in Dayton, Ohio on June 27, 1945, where polonium initiators were fabricated.

Modulated neutron initiator

neutron initiatorinitiatorurchin
Those working on the project were ultimately responsible for creating the polonium-based modulated neutron initiators which were used to begin the chain reactions in the atomic bombs.
The polonium used in the urchin initiator was created at Oak Ridge and then extracted and purified as part of the Dayton Project under the leadership of Charles Allen Thomas.

Pit (nuclear weapon)

pitplutonium corecore
In order to increase the efficiency of the explosion, the initiator had to emit a large number of neutrons in a few microseconds while the plutonium core was fully compressed.
Dayton Project

Carolyn Parker

Carolyn Beatrice Parker (1917–1966) was a physicist who worked from 1943 to 1947 on the Dayton Project, the plutonium research and development arm of the Manhattan Project.

Politics of Dayton, Ohio

mayorDayton City Commissionmayor of Dayton
Since its creation as a town in the 18th century, the Politics of Dayton, Ohio have adapted to and reflected the changing needs of the community, from the Miami and Erie Canal through the World War II "Dayton Project" to the present day.

Nuclear espionage

intercepted shipmentsespionageextensive intelligence network
George Koval – The American-born son of a Belorussian emigrant family that returned to the Soviet Union where he was inducted into the Red Army and recruited into the GRU intelligence service. He infiltrated the US Army and became a radiation health officer in the Special Engineering Detachment. Acting under the code name DELMAR he obtained information from Oak Ridge and the Dayton Project about the Urchin (detonator) used on the Fat Man plutonium bomb. His work was not known to the west until he was posthumously recognized as a hero of the Russian Federation by Vladimir Putin in 2007.

Atomic spies

atomic spyespionageatomic espionage
George Koval — the American-born son of a Belorussian emigrant family that returned to the Soviet Union where he was inducted into the Red Army and recruited into the Main Intelligence Directorate, GRU. He infiltrated the United States Army and became a radiation health officer in the Special Engineer Detachment. Acting under the code name Delmar he obtained information from Oak Ridge National Laboratory and the Dayton Project about the Urchin detonator used on the Fat Man plutonium bomb. His work was not known to the west until he was posthumously recognized as a hero of the Russian Federation by Vladimir Putin in 2007.

List of University of Michigan alumni

14 of them university alumniList of University of Michigan people
Carolyn Parker was a physicist who worked from 1943 to 1947 on the Dayton Project, the plutonium research and development arm of the Manhattan Project.

World War II

Second World WarwarWWII
The Dayton Project was a research and development project to produce polonium during World War II, as part of the larger Manhattan Project to build the first atomic bombs.

World War II

Second World WarwarWWII
The Dayton Project was a research and development project to produce polonium during World War II, as part of the larger Manhattan Project to build the first atomic bombs.

World War II

Second World WarwarWWII
The Dayton Project was a research and development project to produce polonium during World War II, as part of the larger Manhattan Project to build the first atomic bombs.

World War II

Second World WarwarWWII
The Dayton Project was a research and development project to produce polonium during World War II, as part of the larger Manhattan Project to build the first atomic bombs.