DOM MB Gain

6
DOM MB Gain Gerald Przybylski March 12, 2007 LBNL

description

DOM MB Gain. Gerald Przybylski March 12, 2007 LBNL. Handy Single Photoelectron Pulse Model. Chosen for its similarity to an actual PMT pulse, a triangle pulse 15ns wide at the base by 5mV high across Z, the termination resistance. 0. -5mV. 0. 10ns. 20ns. A Single Photoelectron Model. - PowerPoint PPT Presentation

Transcript of DOM MB Gain

Page 1: DOM MB Gain

DOM MB Gain

Gerald Przybylski

March 12, 2007

LBNL

Page 2: DOM MB Gain

Handy Single Photoelectron Pulse Model

Chosen for its similarity to an actual PMT pulse, a triangle pulse 15ns wide at the base by 5mV high across Z, the termination resistance.

10

ns-5mV

0

0

20

ns

Page 3: DOM MB Gain

A Single Photoelectron Model

(15ns)(5mV)

2

Where Z is the termination resistance,

and G is the PMT gain

G = 37.5 pVs / ( Z . 1.602E-19 )

= 37.5 pVs / 43Ω / 1.602E-19 Coulomb

= 5.44E6

= 37.5 pVs = Z G (1.602E-19)

Page 4: DOM MB Gain

x 2.66 x 3 x 3

Page 5: DOM MB Gain

`

The integral under the curve is92 x 1mV x 10ns = 920 pVs

920/37.5 = 24.53 x 3 x 2.66 = 23.9

Page 6: DOM MB Gain