TY - JOUR
AU - Maleeff, Bev
AB - 1 2 Edited by Bob Price * and Bev Maleeff University of South Carolina School of Medicine Administrative Editor, Microscopy Today *Bob.Price@uscmed.sc.edu or significantly reduced beam current, can be indicative of an approach- Seeking Advice on LaB Filament Lifetime ing end. It is essential to note that blinking doesn’t necessarily signal the 3DEM Listserver end of the gun’s life; it could be attributed to issues in the high-tension We have a Talos L120C. Recently we noticed that the beam is quite un- tank, gun head, cable, or even suboptimal vacuum conditions. Contami- stable (flickering). Filament readout shows 830+ hrs. Should we replace the nants in the Wehnelt cap, objective pole piece, or within other parts of the l fi ament sooner? Is there any disadvantage if we set the filament heating upv column can also induce such effects. While arcing is less likely to occur to 50? Mufeeda Madathummal mufeeda.01@gmail.com at 120 kV, it’s still crucial to verify the vacuum level and monitor emis- sion current uc fl tuations. If issues persist, it’s advisable to consult your We changed the LaB filament on our Talos L120c for the first time service contract provider. Please be aware that my direct 
TI - NetNotes
JF - Microscopy Today
DO - 10.1093/mictod/qaae015
DA - 2024-04-18
UR - https://www.deepdyve.com/lp/oxford-university-press/netnotes-qwTZ0LN0fN
SP - 57
EP - 64
VL - 32
IS - 2
DP - DeepDyve
ER -