No it doesn't Clint but there are many other factors to consider. See individul papers here: https://www.qsl.net/k0ff/Nuclear_Physics_101_by_George_Dowell/ ----- Original Message ----- From: Clint <clintb@...> To: [email protected] Sent: Mon, 26 Dec 2022 08:26:10 -0500 (EST) Subject: [CDV700CLUB] Probe voltage and calibration. All, Does the voltage applied to the geiger tube have a significant effect on the calibration if it is within the operating range or 'plateau'? For the LND720, if I were to correct 950V down to 900V is recalibration required? Clint |