Difference between revisions of "03-26-2015"

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| 8857 || 4481 || DAQ1 Scaler = 20512 (DAQ1 TDC16 hits = 20440)
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Revision as of 18:05, 26 March 2015

TDC calibration curve:

Mean x (x̄): 1339.4

Mean y (ȳ): 2272.8.

Intercept (a): 270.7

Slope (b): 1.4948

Regression line equation: y=270.7+1.4948*x

dt/ch = 1/1.4948 = 0.668 ns/ch

Single hit TDC calibr.png


Run # Description
8839 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, no target, 50 mV LED (all), 40 ns LED (all), 1cm Al radiator,

N(gamma, TDC24) = 1/6.7

8840 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, no target, 50 mV LED (all), 40 ns LED (all), 1" (8 plates) Al radiator,

N(gamma, TDC24) = 1/7.5

8841 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, no target, 50 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side.

N(gamma, TDC24) = 1/28

8842 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 50 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350.

N(gamma, TDC24) = 1/23

8843 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 30 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350.

N(gamma, TDC24) = 1/13, N(n, TDC26) = 1/1160

8844 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 20 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350.

N(gamma, TDC24) = 1/11, N(n, TDC26) = 1/1092

8845 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 10 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350.

N(gamma, TDC24) = 1/8, N(n, TDC26) = 1/444

8846 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 5 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350.

N(gamma, TDC24) = 1/8, N(n, TDC26) = 1/300

8847 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 10 mV LED (all), 40 ns LED (all), 1" Al radiator, 1/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350.

N(gamma, TDC24) = 1/14, N(n, TDC26) = 1/9909

8848 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 10 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350.

N(gamma, TDC24) = 1/8, N(n, TDC26) = 1/419

8850 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 10 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 179.

N(gamma, TDC24) = 1/8, N(n, TDC26) = 1/530

8851 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 10 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 122.

N(gamma, TDC24) = 1/10, N(n, TDC26) = 1/487

8851 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 10 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350.

N(gamma, TDC24) = 1/9, N(n, TDC26) = 1/563

8852 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 10 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350. Det #2 is shielded w/ 4" of Pb (placed on a stand close to the DU cyl. target (~30 cm away)) to see how the photon beam is scattered by the target and surrounding.

N(gamma, TDC24) = 1/8, N(n, TDC24) = 1/355,

N(n, TDC26) = 1/360

N(gamma, TDC18) = 1/7, N(n, TDC18) = 1/271

8853 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 10 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350. Det #4 is shielded w/ 4" of Pb (placed on a stand close to the DU cyl. target (~30 cm away)) to see how the photon beam is scattered by the target and surrounding.

N(gamma, TDC18) = 1/13, N(n, TDC18) = 1/1053

8854 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 10 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350. Det #1 is shielded w/ 4" of Pb (placed on a stand close to the DU cyl. target (~30 cm away)) to see how the photon beam is scattered by the target and surrounding.

N(gamma, TDC24) = 1/25, N(n, TDC24) = 1/1123

8856 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 10 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350. Pb brick is removed

N(gamma, TDC24) = 1/13, N(n, TDC24) = 1/484

8857 500 ps pulse width, 800 mA peak current, 200 Hz rep. rate, DU cyl. target in, 10 mV LED (all), 40 ns LED (all), 1" Al radiator, 3/4" Pb collimator/Pb shielding wall on the accelerator side. Slits are at 350. Pb brick is removed. Test w/ gated scaler to observe multi hit effect. Det #2 (top, TDC16) is observed.

N(gamma, TDC24) = 1/, N(n, TDC24) = 1/

Run # DAQ1 Run # DAQ2 Description
8857 4481 DAQ1 Scaler = 20512 (DAQ1 TDC16 hits = 20440)
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