Difference between revisions of "Photomultipliers"

From ift
m
m
Line 1: Line 1:
===Critical Parameters===
+
==Critical Parameters==
  
 
{| border="1" cellpadding="5" cellspacing="0"
 
{| border="1" cellpadding="5" cellspacing="0"
|Parameter
+
!Parameter
|Description
+
!Description
|Typical Value (Fast PTM)
+
!Typical Value (Fast PTM)
 
|-
 
|-
 
|Rise Time (TR)
 
|Rise Time (TR)
Line 19: Line 19:
 
|}
 
|}
 
[[Image:PMT_Parameters.jpg]]
 
[[Image:PMT_Parameters.jpg]]
 +
 +
==Overview of different PMT's==
 +
{| border="1" cellpadding="5" cellspacing="0"
 +
!Part ID
 +
!Type
 +
!Driving Voltage
 +
!Gain
 +
!Spectral Range (nm)
 +
!Spectral Peak (nm)
 +
!Dark Current (after 30 min)
 +
!Rise Time (ns)
 +
!Transit Time (TT)(ns)
 +
!Transit Time Spread (TTS) (ns)
 +
|-
 +
|R1161
 +
|PMT - Head On
 +
|1000 V
 +
|1,0E+06
 +
|300 to 650
 +
|420
 +
|1-6 nA
 +
|2,5
 +
|27
 +
|2,8
 +
|-
 +
|R5505
 +
|PMT - Head On
 +
|1750 V
 +
|1,0E+06
 +
|300 to 1400
 +
|900
 +
|10 nA
 +
|3
 +
|23
 +
|1,5
 +
|}

Revision as of 14:29, 24 February 2009

Critical Parameters

Parameter Description Typical Value (Fast PTM)
Rise Time (TR) The time interval between the arrival of photon at the cathode and the arrival of the amplified pulse at the anode 0,05 (MCP) to 3 ns
Transit Time (TT) The time interval between the arrival of photon at the cathode and the arrival of the amplified pulse at the anode MCP:0,5 ns. PMT: 5-30 ns
Transit Time Spread (TTS) Considered as the most important specification for time-resolved measurements; the timing variation due to the different geometric paths that the electrons can take from the cathode to the anode MCP: 0,025 ns. PMT: 0,2-1,5 ns

PMT Parameters.jpg

Overview of different PMT's

Part ID Type Driving Voltage Gain Spectral Range (nm) Spectral Peak (nm) Dark Current (after 30 min) Rise Time (ns) Transit Time (TT)(ns) Transit Time Spread (TTS) (ns)
R1161 PMT - Head On 1000 V 1,0E+06 300 to 650 420 1-6 nA 2,5 27 2,8
R5505 PMT - Head On 1750 V 1,0E+06 300 to 1400 900 10 nA 3 23 1,5