TY - JOUR
AU - Simons, H A B
AB - A microscope fitted for phase contrast observation is modified so that a biological specimen in the centre of the field of view may be irradiated with -particles. A beam of -particles is obtained from a polonium source by a glass capillary collimating tube of 15  internal diameter, the source and collimator being mounted in a tube passing axially through the optical condenser. The irradiation rate is of the order of 1 particle/min and 70% of the particles lie within a circle of 30  diameter in the focal plane of the objective.A statistical method is used to calculate the probability of irradiation of a target of known size which is irradiated for a known time.
TI - An apparatus giving an -particle microbeam for the irradiation of living cells
JF - Journal of Scientific Instruments
DO - 10.1088/0950-7671/32/1/311
DA - 1955-01-01
UR - https://www.deepdyve.com/lp/iop-publishing/an-apparatus-giving-an-particle-microbeam-for-the-irradiation-of-wKcfOnZ243
SP - 21
VL - 32
IS - 1
DP - DeepDyve
ER -