The Fluoride-salt-cooled High-temperature Test Reactor (FHTR) is a test reactor concept that aims to demonstrate the neutronics, thermal-hydraulics, materials, tritium management, and to address other reactor operational and maintenance issues before a commercial Fluoride-salt-cooled High-temperature Reactor (FHR) can be deployed. The MIT Nuclear Systems Design class proposed a design for a 100...

Tritium behavior in plasma-facing components (PFCs) of future tokamak reactors such as ITER is an essential factor in evaluating and choosing the ideal plasma-facing materials (PFMs). One important parameter that in ̄uences tritium buildup and release in candidate materials is the e€ect of material porosity on tritium di€usion and retention. Di€usion in porous materials, for example, consists of...

background: brain is the most important organ as it controls and co- ordinates all the activities of our body. reports on neuroethological investigations in mice particularly associated with learning and memory after radiation exposure are very scanty. hence, present investigation is an attempt to examine the effects of low dose tritiated water (hto) acute exposure on adult swiss albino mice in...

There is no practical external source of tritium for fusion energy development beyond ITER and all subsequent fusion systems have to breed their own tritium. To ensure tritium self-sufficiency, the calculated achievable tritium breeding ratio (TBR) should be equal to or greater than the required TBR. The potential of achieving tritium self-sufficiency depends on many system physics and technolo...

LLE Review, Volume 147 150 Introduction High concentrations of tritium develop on stainless-steel (SS) surfaces exposed to a tritium atmosphere.1 These high concentrations are attributed to tritium dissolution within the adsorbed water layers present on all metal surfaces.1–4 Tritium dissolved within these layers contributes $20% to the total inventory absorbed by SS.1 Additionally, these water...

Public concerns over the health effects associated with low-level and long-term exposure to tritium released from industrial point sources have generated the demand for better methods to evaluate historical tritium exposure levels for these communities. The cellulose of trees accurately reflects the tritium concentration in the source water and may contain the only historical record of tritium ...

Tritium up to fifty times background has been observed upon electrolyzing 1N D2SO4 in four out of four cells when using Pd cathodes "of a certain type". No tritium was detected in four control cells, containing H2S04 in H2O, employing Pd cathodes cut from the same wire spool. Tritium amounts were from 7 x 10 to 2.1 × 10 atoms, corresponding to average generation rates from 5.1 × 10 to 2 × 10 at...

We have tritium labeled two nucleic acid molecules, an 8 kDa DNA oligomer and a 20 kDa 'hammer-head' RNA for tritium NMR investigations. The DNA sequence studied has been previously used in homonuclear studies of DNA-bound water molecules and tritium NMR was expected to facilitate these investigations by eliminating the need to suppress the water resonance in tritium-detected 3H-1H NOESY experi...

Effects of verapamil, diltiazem and nicardipine on tritium overflow and contraction evoked by transmural nerve stimulation (TNS) were evaluated using canine saphenous vein strips preincubated with [3H]norepinephrine. External Ca2+ was required for both tritium overflow and contraction evoked by TNS. All the Ca antagonists tested significantly increased the spontaneous overflow of tritium in a c...

Rat epididymal fat pad segments were incubated with glucose labeled uniformly with W, and with tritium in position 2, and in positions 1,3, and 6. Under conditions of high lipogenesis, 70 to 80% of tritium (T) from position 2 was recovered in water, with the remainder in lipid glycerol, fatty acids, and lactate. The highest tritium retention, relative to carbon, was in glycerol, with T:W ratios...