Figure 1

Calculated magnetic field profile along the solenoid axis for current $\mathrm{I}=560\mathrm{A}$.Reuse & Permissions

Figure 2

Absolute efficiency curve for the SACRED spectrometer obtained using a ${}^{133}\mathrm{Ba}$ electron source. The electrostatic barrier in this case was $-40\mathrm{kV}$. The solid line is from simulations using the SOLENOID Monte Carlo code [8].Reuse & Permissions

Figure 3

(a) Focal plane spectrum of alpha particles expanded about the energy region of interest. (b) $\alpha$ events occurring within $800\mathrm{ms}$ of recoil implantation.Reuse & Permissions

Figure 4

Focal plane energy vs time of flight with arbitrary units on both axes. The region bounded by the dashed line contains events corresponding to ${}^{254}\mathrm{No}$ recoils.Reuse & Permissions

Figure 5

(a) TDC started by a recoil event in the focal plane and stopped by the detection of an electron in the target position. (b) The same as (a) but in coincidence with recoils correlated to the decay of ${}^{226}\mathrm{U}$. The region between the solid lines represents the prompt TDC gate used in the experiment. The region between solid and dashed lines either side represents the gates used to create the background contribution.Reuse & Permissions

Figure 6

(a) Normalized random background contribution for ${}^{226}\mathrm{U}$. (b) Experimental conversion electron spectrum in coincidence with recoils correlated to the decay of ${}^{226}\mathrm{U}$, corrected for the contribution from random coincidences.Reuse & Permissions

Figure 7

(a) Time distribution, following the reaction ${}^{48}\mathrm{Ca}+{}^{208}\mathrm{Pb}$, between a recoil event in the focal plane in RITU and the detection of an electron in SACRED. (b) The same as (a) but for when the recoils were selected using the parallel plate gas detector, using the condition shown in Fig. 4. The region between the solid lines represents the prompt gate used in the experiment. The region between solid and dashed lines either side represents the gates used to create the background contribution.Reuse & Permissions

Figure 8

(a) Normalized random background contribution for ${}^{254}\mathrm{No}$. (b) Experimental conversion electron energy spectrum in coincidence with ${}^{254}\mathrm{No}$ recoils selected using the parallel plate gas detector. The unidentified peak is labeled as “?”.Reuse & Permissions

Figure 9

Panels (a)–(e) are ${}^{254}\mathrm{No}$ recoil tagged $e-e$ coincidence spectra. Panel (a) shows the total projection of the coincident electron matrix. The dashed lines represent the gates set on the L electrons used to produce panels (b)–(e) in which the position of the gating transition is marked with a triangle: (b) Electrons coincident with the $4^{+}\to 2^{+}$ transition, (c) electrons coincident with the $6^{+}\to 4^{+}$ transition; (d) electrons coincident with the $8^{+}\to 6^{+}$ transition; (e) electrons coincident with the unidentified peak [labeled “?” in (a)].Reuse & Permissions