Princeton 4411-0087 Manuale Utente

Appendix B 

PTG Module 

69 

 

 

External: Each trigger applied to Ext. Trig. In BNC initiates a pulse ensemble that is 

applied to PI-MAX. 

Readout Cycle: Readout cycle is triggered through the ST-133 backplane if Int. Sync. 

is selected on Experiment Setup 

Timing tab page.  

Enabling: Handshakes that prevent a readout from occurring while the PTG is busy and 

that prevent the PTG from pulsing the photocathode ON while a readout cycle is in 
progress are performed through the backplane. 

Levels: -6 V to + 6 V DC  
External Level Resolution: 48 mV 
Slope: selectable.  
Coupling: AC and DC selectable. 
Input Hysteresis: 100 mV 

 

Repetition Rate: up to 1 MHz  

 

Bandwidth: 700 MHz 

Internal Trigger: 
 

Repetition rate:  

minimum: 0.1 Hz 
maximum: 1 MHz 
resolution: 12.5 ns 

Trigger gate start delay: 

minimum: 24 ns 
maximum: 20 ms

*

  

resolution: 0.04 ns 

Gate Pulse width: 

minimum: 0.0 ns 
maximum: 20 ms

*

  

resolution: 0.04 ns 

Trigger to Auxiliary delay: 

minimum: 24 ns 
maximum: 10 ms 
resolution: 0.04 ns 

                                                      

*

 

start delay + gate width = 20 ms maximum