Helium-3 of the airway tree, locate unventilated defects, measure the alveolar oxygen partial pressure, and measure the ventilation/perfusion ratio. This technique may be critical for the diagnosis and treatment management of chronic respiratory diseases such as chronic obstructive pulmonary disease (COPD), emphysema, cystic fibrosis, and asthma. Production, sales and distribution of helium-3 in the United States are managed by the US Department of Energy (DOE) Isotope Program. Virtually all helium-3 used in industry today is produced from the radioactive decay of tritium. Tritium is a radioactive isotope of hydrogen and is typically produced by bombarding lithium-6 with neutrons in a nuclear
Board of Radiation and Isotope Technology also manufactures self-luminescent tritium filled sources. The organisation also develops radiation-based medical equipment to treat cancer. BRIT operates three radiation facilities, one of them a spice and allied products irradiation facility in Vashi and another a "Krushak" (Krishi Utpadan Sanrakshan Kendra) radiation processing plant at Nashik. G. Ganesh is BRIT's Chief Executive officer since 1 August 2015, succeeding Anil Kumar Kohli (2006-2015). Board of Radiation and Isotope Technology Board of Radiation and Isotope Technology in short known as "BRIT" is a unit of the Department of Atomic Energy with its headquarters in Navi Mumbai, India. It is involved in production,