Peter Schury edited section_Plan_for_use_of__.tex  over 8 years ago

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\section{Plan for use of machine time allocation extension}  Unfortunately, the initial commissioning of the system was more difficult and time-consuming than initially supposed. While we have succeeded in the preliminary commissioning, including several actinide atomic mass measurements, doing so required the use of nearly all the initially assigned machine time. However, at the same time, the commissioning proved that we can simultaneously measure several isotopes, providing a new option for efficient use of future machine time. Additionally, the development of projectile beams of Ti and Cr give us the ability to extend our initial area of interest up to isotopes of Sg.  \subsection{Isotopes to be produced with $^{40}$Ar beams} beams (3 days)}  We still require some machine time with a $^{40}$Ar beam. We will need some time to make an online verification of improvements in recapture in the second trap system using the well-studied $^{205}$Fr and $^{201}$At (1~day). We will also need this beam for study of neutron-deficient Fm produced via $^{208}$Pb($^{40}$Ar, $x$n)$^{248-x}$Fm (2~days).  \begin{table}   \begin{tabular}{ c c c c c c } 

\begin{table}   \begin{tabular}{ c c c c c c }  Reaction & $E_\mathrm{proj}$ [MeV] & $\sigma$ [nb] & reference & Rate [day$^{-1}$] & Duration [hrs] \\   $^{205}$Tl($^{48}$Ca,1n)$^{252}$Md & 212.2 & 76 & & 122 & 8.8 \\   $^{205}$Tl($^{48}$Ca,2n)$^{251}$Md & 212.2 & 760 & & 1220 & 0.9 \\   $^{205}$Tl($^{48}$Ca,3n)$^{250}$Md & 212.2 & 76 & & 122 & 8.8 \\   \hline  $^{208}$Pb($^{48}$Ca,1n)$^{255}$No & 212.2 & 260 & & 410 & 2.6 \\   $^{208}$Pb($^{48}$Ca,2n)$^{254}$No & 216.0 & 2344 & & 3693 & 0.3 \\   $^{207}$Pb($^{48}$Ca,2n)$^{253}$No & 216.7 & 1310 & & 2074 & 0.5 \\   $^{206}$Pb($^{48}$Ca,2n)$^{252}$No & 217.1 & 515 & & 819 & 1.3 \\   $^{206}$Pb($^{48}$Ca,3n)$^{251}$No & 226.2 & 30 & & 48 & 22 \\   \hline  $^{209}$Bi($^{48}$Ca,1n)$^{256}$Lr & 214.1 & 61 & & 96 & 11.2 \\   $^{209}$Bi($^{48}$Ca,2n)$^{255}$Lr & 217.4 & 437 & & 685 & 1.6 \\   $^{209}$Bi($^{48}$Ca,3n)$^{254}$Lr & 228.5 & 28 & & 44 & 24 \\   $^{209}$Bi($^{48}$Ca,4n)$^{253}$Lr & 240 & 1 & & 2 & 680 \\  \end{tabular}   \caption{Reactions with $^{48}$Ca beam. The rate refers to the rate at the MRTOF assuming current efficiency. The duration refers to the duration required to achieve $\delta m/m$=10$^{-6}$ based on $R_\mathrm{m}$=150,000.}   \label{tblCaBeam}