The preamplifiers are practically identical; therefore, only one circuit diagram is given here (Fig. ... The alpha probe uses an unsealed, air proportional counter for measuring surface alpha radiation. ... proportional-counter tube is filled with boron trifluoride gas to a pressure of about 20 cm of mercury and operates at aboutanbsp;...
|Title||:||How to detect & measure radiation|
|Author||:||Harold S. Renne|