We propose a β-decay experiment based on a sample of ultracold atomic tritium. These initial conditions enable detection of the helium ion in coincidence with the β. We construct a two-dimensional fit incorporating both the shape of the β-spectrum and the direct reconstruction of the neutrino mass peak. We present simulation results of the feasible limits on the neutrino mass achievable in this...

Introduction For the last few months, hectic activity has been underway in various laboratories to study the Cold Fusion phenomenon. De Ninno et al. reported emission of neutrons from titanium metal loaded with deuterium gas under pressure. Similar experiments have been conducted at Trombay. We report here evidence of cold fusion in D2 gas loaded Ti and Pd targets through the use of autoradiogr...

Abstract Following the first Deuterium-Tritium Experiment (DTE1) at UKAEA, modifications were investigated to Joint European Torus’ (JET) gas introduction systems increase feed capabilities of JET facility better support future campaigns. The comprise and distribution system (GI/GD) in Active Gas Handling System (AGHS), Neutral Beam Injection (NBIs) Tritium Modules (TIMs) on torus. During DTE1 ...

The hydrogen solubility in zirconia (yttria stabilized zirconia, YSZ) using a tritium imaging plate (IP) technique has been measured in a temperature region ranging from 673K to 973K. The tritium distribution in the zirconia specimens was nearly uniform suggesting an equilibrated dissolution. The hydrogen solubility in specimens were rather low (around ppm or below) and showed Arrhenius type te...

A breeding blanket design for the tritium production ICF reactor SIRIUS-T is presented. The blanket consists of alternating layers of beryllium multiplier and lithium breeder/coolant with vanadium alloy structure. A tritium breeding ratio of 1.9 can be achieved for the optimum layered configuration with lithium enriched to 90% 6Li. An optimum coolant routing scheme is utilized to achieve adequa...

Methyl esters of polyunsaturated fatty acids labeled with tritium were prepared by partial stereoselective reduction of the corresponding acetylenic esters with tritiated disiamylborane, followed by protonolysis with tritiated acetic acid. The labeling was strictly specific, and the tritium atoms were located only at the carbon atoms forming the unsaturated bond(s). Synthesis of some tritiated ...

The pentapeptide Phe-Leu-Glu-Glu-Leu, tritiated at the gamma carbon of each Glu residue, has been synthesized. In a system using microsomal preparations derived from rat liver, vitamin K-dependent tritium release from the L-Glu residues of this substrate can occur without the concurrent gamma-carboxylation of Glu. This tritium release reaction, which indicates cleavage of the gamma C-H bond, al...

Glucose formed from [5-T]fructose in rat hepatocytes contains about 10 to 30% tritium. This does not appear to be due to fructose metabolism via hexokinase since neither the initial presence of glucose, nor wide variations in the original fructose concentration, have much effect on the relative labeling of glucose versus water from [5-T]fructose. Comparison of the T:14C ratios in glucose produc...