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David Hahn

David Hahn
Born(1976-10-30)October 30, 1976
DiedSeptember 27, 2016(2016-09-27) (aged 39)
Other namesNuclear Boy Scout
Radioactive Boy Scout
Known forBuilding a neutron source in his mother's backyard

David Charles Hahn (October 30, 1976 – September 27, 2016) sometimes called the "Radioactive Boy Scout" or the "Nuclear Boy Scout", was an American who built a homemade neutron source at the age of 17.

A scout in the Boy Scouts of America, Hahn conducted his experiments in secret in a backyard shed at his mother's house in Commerce Township, Michigan. Hahn's goal was to build and demonstrate a homemade Breeder Reactor. While he never actually managed to build a reactor (what he built was a neutron source), Hahn's progress attracted the attention of local police when he was stopped on another matter and they found material in his vehicle that troubled them, and he warned that it was radioactive. The police contacted Federal authorities. His mother's property was cleaned up by the Environmental Protection Agency (EPA) ten months later as a Superfund cleanup site. Hahn attained Eagle Scout rank shortly after his lab was dismantled.[1]

While the incident was not widely publicized initially, it became better known following a 1998 Harper's article by journalist Ken Silverstein. Hahn was also the subject of Silverstein's 2004 book The Radioactive Boy Scout.[1] As an adult, Hahn served in the U.S. Navy and Marines. He was subsequently treated for mental illness, and his death at age 39 was related to drug and alcohol use.


Hahn was born in Royal Oak, Michigan.[2]

Creation of the neutron source

Hahn was a Boy Scout fascinated by chemistry, and spent years conducting amateur chemistry experiments, which sometimes caused small explosions and other mishaps. He was inspired in part by reading The Golden Book of Chemistry Experiments, and tried to collect samples of every element in the periodic table, including the radioactive ones. He later received a merit badge in Atomic Energy and became fascinated with the idea of creating a breeder reactor in his home. Hahn diligently amassed radioactive material by collecting small amounts from household products, such as americium from smoke detectors, thorium from camping lantern mantles, radium from clocks, and tritium from gunsights. His "reactor" was a bored-out block of lead, and he used lithium from $1,000 worth of purchased batteries to purify the thorium ash using a Bunsen burner.[3][4]

Hahn posed as an adult scientist or high school teacher to gain the trust of many professionals in letters—and succeeded, despite misspellings and obvious errors.[citation needed] Hahn ultimately hoped to create a breeder reactor, using low-level isotopes to transform samples of thorium and uranium into fissionable isotopes.[5]

His homemade neutron source was often incorrectly referred to as a reactor, but it did end up emitting dangerous levels of radiation, likely well over 1,000 times normal background radiation. Alarmed, Hahn began to dismantle his experiments—but in a chance encounter, police discovered his activities, which triggered a Federal Radiological Emergency Response involving the FBI and the Nuclear Regulatory Commission. On June 26, 1995 the EPA, having designated Hahn's mother's property a Superfund hazardous materials cleanup site, dismantled the shed and its contents and buried them as low-level radioactive waste in Utah. Unknown to officials, his mother, fearful that she would lose her house if the full extent of the radiation were known, had already collected the majority of the radioactive material and thrown it away in the conventional garbage. Hahn refused medical evaluation for radiation exposure. EPA scientists believe that Hahn's life expectancy may have been greatly shortened by his exposure to radioactivity, particularly since he spent long periods in the small, enclosed shed with large amounts of radioactive material and only minimal safety precautions, but he refused their 1995 recommendation that he be examined at the Enrico Fermi Nuclear Generating Station.[3]

Neutron source vs breeder reactor

While Hahn was often said to have made a breeder reactor, his actual work was on a neutron source. The confusion is due to the fact that his device did create new radioactive materials through neutron activation. None of the materials used or created were fissile, so it was not a reactor.


Hahn became depressed after the scandal, a problem exacerbated by the breakup with his then girlfriend and the suicide of his mother in early 1996.[1]:189 While he did graduate from high school, he lacked any direction or plans thereafter. His father and stepmother first encouraged him to attend Macomb Community College. He enrolled in a metallurgy program there but frequently skipped classes.[1]:190 He was then encouraged to join the military, so he enlisted in the Navy, assigned to the nuclear-powered aircraft carrier USS Enterprise as an undesignated seaman.[3] After a four-year tour, he achieved interior communications specialist with a rank of petty officer, third class.[1]:196

Hahn had hoped to pursue a nuclear specialist career.[citation needed]

After his time on USS Enterprise, Hahn enlisted in the Marines and was stationed in North Carolina. After a few years, Hahn achieved the rank of Lance Corporal. Shortly after returning from a rotation in Japan, he was honorably discharged on medical grounds and returned to Michigan.

FBI investigation

On April 23, 2007, the FBI received a lead regarding Hahn's alleged possession of a second breeder reactor in his freezer.[6] Contacted via telephone, Hahn insisted that he was not in possession of radioactive material. The FBI decided no imminent terrorist threat was present but decided to attempt a personal interview.[7] During a May 16, 2007, interview at an FBI office investigators asked Hahn about flyers that he had distributed promoting his book and upcoming film; theft of tires and rims from a vehicle prior to his Navy service; a diagnosis of paranoid schizophrenia; and, a few less significant topics.[8] FBI agents then interviewed an individual (whose identity was not released) who stated that Hahn was using cocaine heavily, was not taking his prescribed medication, was paranoid of people that he claimed "had the ability to 'shock' his genitals with their minds", and had possibly been visited by prostitutes.[9] The individual also stated that he believed that Hahn was still trying to build a reactor and was collecting radium. He stated that he did not believe Hahn had any intentions of hurting anyone, but was concerned for his mental state.[9]

This investigation is likely what led to Hahn's arrest regarding larceny of smoke alarms.

Larceny of smoke detectors

On August 1, 2007, Hahn was charged with larceny in Clinton Township, Michigan for allegedly removing a number of smoke detectors from the halls of his apartment building.[10][11] His intention was to obtain americium from them. In his mug shot, his face is covered with sores, which investigators believe could be from exposure to radioactive materials, psoriasis, or possible drug use.[12] During a Circuit Court hearing, Hahn pleaded guilty to attempted larceny of a building. The court’s online docket said prosecutors recommended that he be sentenced to time served and enter an inpatient treatment facility. Under terms of the plea, the original charge of larceny of a building would be dismissed at sentencing, scheduled for October 4.[13] He was sentenced to 90 days in jail for attempted larceny. Court records stated that his sentence would be delayed by six months while Hahn underwent medical treatment in the psychiatric unit of Macomb County Jail.[14]


On September 27, 2016, at the age of 39,[15] Hahn died in his hometown of Shelby Charter Township, Michigan.[15][16] His death was accidental and due to intoxication from the combined effects of alcohol, diphenhydramine, and fentanyl.[17]

In popular culture

The incident received scant media attention at the time, but was widely disseminated after writer Ken Silverstein published an article about the incident in Harper's Magazine in 1998.[3] In 2004 he expanded it into a book, The Radioactive Boy Scout, which was optioned for a feature film in 2016.[18]

In 1999, University of Chicago physics majors Justin Kasper and Fred Niell, as part of a scavenger hunt that had as one of its items "a breeder reactor built in a shed," successfully built a similar nuclear reactor that produced trace amounts of plutonium.[19]

In the CSI: NY episode "Page Turner", the character Lawrence Wagner is based on Hahn.[20]

A television documentary, The Nuclear Boy Scout, aired on Channel 4 in the United Kingdom in 2003. In it, Hahn reenacted some of his methods for the camera.

Hahn's experiments inspired others to attempt similar feats, particularly Taylor Wilson, who at age 14 became the youngest person to produce nuclear fusion.[21]

Michael Stevens featured Hahn's story in his Vsauce YouTube video "Cruel Bombs".[22][citation needed]

An episode of the CBS series Young Sheldon features the protagonist attempting to build a nuclear reactor by extracting americium from smoke detectors.

Duncan Jones claimed that his villain in the sci-fi film Source Code was inspired by the documentary The Nuclear Boy Scout.[23]

Indian writer K P Poornachandra Tejaswi based a section of his book Vismaya Vishwa-1 on this incident.

See also


  1. ^ a b c d e Silverstein, Ken (2004). The Radioactive Boy Scout: The Frightening True Story of a Whiz Kid and His Homemade Nuclear Reactor. Villard. ISBN 978-0812966602.
  2. ^ "David Charles Hahn - View Obituary & Service Information". David Charles Hahn Obituary.
  3. ^ a b c d Silverstein, Ken (November 1998). "The Radioactive Boy Scout". Harper's Magazine. Retrieved September 10, 2014.
  4. ^ Rauschenberger, Tim (March 16, 2004). "The Nuclear Merit Badge". The Christian Science Monitor. Retrieved February 3, 2016.
  5. ^ Kean, Sam (2010). The Disappearing Spoon. Little, Brown and Co.
  6. ^ "David Hahn Part 01 of 01". Federal Bureau of Investigation. February 26, 2010. p. 2. Retrieved October 15, 2018.
  7. ^ "David Hahn Part 01 of 01". Federal Bureau of Investigation. February 26, 2010. p. 5. Retrieved October 15, 2018.
  8. ^ "David Hahn Part 01 of 01". Federal Bureau of Investigation. February 26, 2010. p. 9. Retrieved October 15, 2018.
  9. ^ a b "David Hahn Part 01 of 01". Federal Bureau of Investigation. February 26, 2010. p. 13. Retrieved October 15, 2018.
  10. ^ Taylor, Adam (August 2, 2011). "The Weird Story Of The Swedish Man Who Tried To Build A Nuclear Reactor In His Kitchen". Business Insider. Retrieved February 3, 2016.
  11. ^ "Man dubbed 'Radioactive Boy Scout' pleads guilty". Detroit Free Press. August 27, 2007. Archived from the original on September 29, 2007. Retrieved February 3, 2016.
  12. ^ "'Radioactive Boy Scout' Charged in Smoke Detector Theft". Fox News. August 4, 2007. Retrieved November 28, 2007.
  13. ^ "Man dubbed 'Radioactive Boy Scout' pleads guilty". Detroit Free Press. Associated Press. August 27, 2007. Archived from the original on September 29, 2007. Retrieved August 27, 2007.
  14. ^ "'Radioactive Boy Scout' Sentenced to 90 Days for Stealing Smoke Detectors". Fox News. October 4, 2007. Retrieved November 28, 2007.
  15. ^ a b "David Charles Hahn". Tributes, Inc. September 26, 2016. Retrieved October 4, 2016.
  16. ^ "David Hahn Obituary - Shelby Township, Michigan". October 2, 2016.
  17. ^ "County Coroner Findings". Retrieved December 2, 2018.
  18. ^ Pressburg, Matt (September 28, 2016). "'Radioactive Boy Scout' Movie About Real Teen Nuke Builder in the Works". The Wrap. Retrieved October 6, 2016.
  19. ^ Olkon, Sara (May 1, 2011). "Ready, set... Scav Hunt!". Retrieved February 3, 2016.
  20. ^ Gail, Nancy. "TV Review: CSI: NY, 'Page Turner'". Blog Critics. Archived from the original on October 20, 2011. Retrieved January 29, 2012.
  21. ^ "The Boy Who Played With Fusion". Popular Science. Retrieved April 20, 2016.
  22. ^ "Cruel Bombs".
  23. ^ "Duncan Jones tells us what really happened at the end of Source Code". io9.

Further reading

External links