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SEPTEMBER 2021    |   SRNS TODAY   |   7
 TEF achieves record number of operations








                                                       he SRS Tritium Extraction Facility (TEF), which provides the hydrogen isotope
                                                       needed for the nation’s nuclear deterrent, has exceeded all previous records
                                                T for number of extractions in a single fiscal year, surpassing the number of
                                                   extractions SRS committed to complete during the year.
                                                   TEF completed seven extractions during fiscal year (FY) 2021 – the five that were
                                                   promised for FY 2021 and the first two for next fiscal year. This more than doubles
                                                   the previous record of three extractions in a single year.
                                                   Tritium is the radioactive isotope of hydrogen needed for modern nuclear weapons.
                                                   “It’s absolutely vital for our nuclear deterrent,” explained Jason Armstrong, NNSA –
                                                   Field Office Manager. “Without tritium, there wouldn’t be a nuclear stockpile, but it has
                                                   a relatively short half-life, so it has to be replenished on an ongoing basis.” SRS is the
                                                   only place in the country that provides the tritium used in the nation’s stockpile.
                                                   NNSA is the semi-autonomous agency within the DOE responsible for ensuring the
                                                   United States maintains a safe, secure and reliable nuclear stockpile.
                                                   “I’m exceptionally proud of our employees for achieving this record level of operation,”
                                                   said Mark Davis, Senior Vice President – NNSA Operations and Programs with SRNS,
                                                   the company responsible for operating and managing SRS. “They had been working
                                                   hard over the past few years to prepare for this, because they know how important it
                                                   is to the nation. Then, they had to add the measures necessary to protect themselves
                                                   and their coworkers from COVID-19 and adjusted to those.”
                                                   SRS has been providing the nation’s tritium since the 1950s, originally generated
                                                                 in the Site’s now-decommissioned nuclear reactors. In the
                                                                 contemporary process, rods called Tritium-Producing Burnable
                                                                 Absorber Rods (TPBARs) are irradiated in reactors operated by the
                                 “Without tritium, there         Tennessee Valley Authority, then transported to SRS. There, in the
                                  wouldn’t be a nuclear          TEF, the tritium is extracted from the rods, processed, transferred
                                   stockpile, but it has         to SRS’ H Area New Manufacturing (HANM) facility, and loaded into
                                                                 reservoirs for shipment to the military.
                                    a relatively short           From its startup in 2006 through 2016, TEF was only required
                                    half-life, so it has         to conduct a single extraction each year to meet Department
                                  to be replenished on           of Defense demands. Then in FY 2017, the facility’s employees
                                   an ongoing basis.”            conducted three extractions for the first time.
                                                                 The facility was scheduled to conduct a minimum of five extractions
                                    Jason Armstrong              for FY 2021, marking the beginning of a multi-year increase that will
                                                                 see operations grow to eight extractions per year in 2026.
                                                                 Actions to be ready for the increased workload began with the
                                                                 preparations for the 2017 milestone, including the start of hiring,
                                                   training and qualifying additional operators and other facility personnel. Today, TEF
                                                   has reached full operational staffing in readiness for the increasing number
                                                   of extractions.
                                                   Other preparations included bringing a second furnace online in the facility in 2019
                                                   to enhance operational flexibility and capability for the multiple annual extractions.
                                                   In late 2020, SRNS also began operating a new diffuser/stacking system for TEF’s
                                                   waste gases. The new system allows TEF to handle its own gases, rather than
                                                   having them processed along with other waste gases at HANM, increasing capacity
                                                   and decreasing waste gas.
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