A time projection chamber to study two-proton radioactivity

作者：Blank B^*; Audirac L; Canchel G; Delalee F; Dernonchy C E; Giovinazzo J; Hay L; Hellmuth P; Hulkari J; Leblanc S; List S; Marchand C; Matea I; Pedroza J L; Plbernat J; Reblia A; Serani L; de Oliveira Santos F; Grevy S; Perrot L; Stodel C; Thornas J C; Borcea C; Dossat C; de Oliveira R

来源：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms , 2008, 266(19-20): 4606-4611.

DOI：10.1016/j.nimb.2008.05.109

• Two-proton radioactivity
• Time projection chamber
• ASIC electronics

Two-proton radioactivity was observed in two experiments in 2002 in the decay of (45)Fe. However. these experiments did not allow the observation of the two protons directly. In the present paper. we present a new setup based oil the principle of a time projection chamber which enabled us for the first time to identify directly the two protons. The new setup permits the observation and reconstruction in three dimensions of the traces of the protons. We will discuss the setup and describe its performances.

• 出版日期2008-10
• 单位中国地震局