HRRL Pos Test 27Jul2012 Data Ana 3 MeV

Hand calculation on electron rate

At full current on Faraday cup 1 we have 1201 nVs/ADC channel.

[math]\frac{1201~nVs}{50 \Omega} = 24~nAs = 24~nC[/math]

charge rate under 300 Reprate: [math]300 \times 24~nAs = 7200~nC = 7.2 \frac{\mu C }{ s}[/math]

[math] \frac{7.2 \times 10^{-6}\frac{ C }{ s}} {1.6 \times 10^{-19} C} = 4.5 \times 10^{13}[/math]

Data

3735 sub 3736

run in	run out	NaI Left: image with cut	NaI Right: image with cut	NaI Left: image with no cut (rate calculate with cut)	NaI Right: image with no cut (rate calculate with cut)	NaI Left: image with cut, no normalization	NaI Right: , no normalization
3735	3736

Reprate = 300 Hz

Run time = 1002 s

Pulses = 301462

Events = 9045

e- rate = 7.80042e+013 +- 2.25903e+012 (Hz)

e+ rate = 1.41748 +- 0.0376119 (Hz).

e+/e-=1.81719e-014+-4.8238e-016.

e- current:I_e- =6.26271e-006+-3.61937e-007 (A).

e+/I_e-=1.4 Hz e+ / 6.3 \muA e-

3737 sub 3736

run in	run out	NaI Left: image with cut	NaI Right: image with cut	NaI Left: image with no cut (rate calculate with cut)	NaI Right: image with no cut (rate calculate with cut)	NaI Left: image with cut, no normalization	NaI Right: , no normalization

Reprate = 300 Hz

Run time = 1094 s

Pulses = 329368

Events = 15361

e- rate = 1.36517e+014 +- 2.39286e+012 (Hz)

e+ rate = 1.60462 +- 0.0382982 (Hz).

e+/e-=1.1754e-014+-2.8058e-016.

e- current:I_e- =1.52232e-005+-3.83378e-007 (A).

e+/I_e-=1.6 Hz e+ / 15 \muA e-

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