TY - JOUR
AU - D. Heddle
BT - Journal of Physics E: Scientific Instruments
DA - Jan-12-1971
DO - 10.1088/0022-3735/4/12/013
PY - 1971
SP - 981
EP - 983
T2 - Journal of Physics E: Scientific Instruments
TI - An afocal electrostatic lens
UR - http://stacks.iop.org/0022-3735/4/i=12/a=013?key=crossref.e4af44d05a87de8a606775ac1aea9127
VL - 4
SN - 0022-3735
ER -