Difference between revisions of "PAA Sage"

From New IAC Wiki
Jump to navigation Jump to search
 
(60 intermediate revisions by 2 users not shown)
Line 3: Line 3:
 
=Motivation=
 
=Motivation=
  
−
The volatile oil content of sage brush is known to be a strong indicator of both the flammability of sage brush as well as its forage value for open range livestock.  The volatile oils in sage brush leaves impede the growth of rumen micro-organisms thereby decreasing an animal's appetite. The amount of Magnesium in sage brush leaves has been shown to be strongly correlated with the volatile oil content of sage brush.  We studied the potential to use Photon Activation Analysis at the Idaho Accelerator Center as a means to measure the Magnesium content of sage brush.  The figure below illustrates our ability to identify the presence of Magnesium in sage brush leaves.  With further work, this method has the potential to provide ranchers and the fire prevention services with a means of monitoring the forage value and fire risk of Idaho's sage brush population.
+
The volatile oil content of sage brush is known to be a strong indicator of both the flammability of sagebrush as well as its forage value for open range livestock<ref name="Sage1968">[[File:SageBrushMg-vs-VolOil_Powell.pdf]] </ref>.  The volatile oils in sagebrush leaves impede the growth of rumen micro-organisms thereby decreasing an animal's appetite. The amount of Magnesium in sagebrush leaves has been shown to be strongly correlated with the volatile oil content of sagebrush.  We studied the potential to use Photon Activation Analysis at the Idaho Accelerator Center as a means to measure the Magnesium content of sagebrush.  The figure below illustrates our ability to identify the presence of Magnesium in sagebrush leaves.  With further work, this method has the potential to provide ranchers and fire prevention services with a means of monitoring the forage value and fire risk of Idaho's sagebrush population.
 +
 
 +
=Preliminary results=
 +
 
 +
 
 +
 
 +
[[File:MagInSagePAA_7-3-2017.png | 200 px]]
 +
 
 +
 
  
 
[[File:10perc_07032017_1369keVLin.png | 200 px]]
 
[[File:10perc_07032017_1369keVLin.png | 200 px]]
  
−
[[5252017_Anal]]
+
= 5/23/19=
 +
 
 +
==Calibration Detect A==
 +
 
 +
{| border="1"  |cellpadding="20" cellspacing="0
 +
|Source || Energy (keV0 || Channel
 +
|-
 +
|Th Rod || 238.8 (highest peak)|| 548.152
 +
|-
 +
|Ba-133 || 276.398 ||632.9
 +
|-
 +
|Th Rod || 338.8 (4th highest) || 772.106
 +
|-
 +
|Ba-133 || 356 || 811.78
 +
|-
 +
|Na-22 ||511|| 1159.92
 +
|-
 +
|Th Rod ||583.4 (2nd highest peak) || 1322.244
 +
|-
 +
|Cs-137  || 661.7 || 1497.84
 +
|-
 +
|Th Rod || 911.2 (3rd highest) || 2059.4
 +
|-
 +
|Na-22 || 1274.5 || 2875.50
 +
|-
 +
|Th Rod || 2614.6 || 5886.485
 +
|}
 +
 
 +
 
 +
MPA Fit:  (-5.74857) + (0.445818)*x + (-2.04348e-7)*x^2
 +
 
 +
==Calibration Detect D==
 +
 
 +
{| border="1"  |cellpadding="20" cellspacing="0
 +
|Source || Energy (keV || Channel
 +
|-
 +
|Th Rod || 238.8 (highest peak)|| 531.303
 +
|-
 +
|Ba-133 || 276.398 || 615.556
 +
|-
 +
|Th Rod || 338.8 (4th highest) ||253.581
 +
|-
 +
|Ba-133 || 356 || 792.917
 +
|-
 +
|Na-22 ||511|| 1138.136
 +
|-
 +
|Th Rod ||583.4 (2nd highest peak) || 1298.982
 +
|-
 +
|Cs-137  || 661.7 || 1473.827
 +
|-
 +
|Th Rod || 911.2 (3rd highest) || 2029.758
 +
|-
 +
|Na-22 || 1274.5 || 2839.048
 +
|-
 +
|Th Rod || 2614.6 || 5824.23
 +
|}
 +
 
 +
MPA Fit:  (0.0122021) + (0.449001)*x + (-3.08126e-8)*x^2
 +
 
 +
 
 +
Run list
 +
 
 +
 
 +
data/Dan-May 2019 Gallium run
 +
 
 +
 
 +
thorium002.mpa: Thorium on A & D
 +
 
 +
cs-127-003.mpa: Thorium on A & Cs on D
 +
 
 +
Na-22-004.mpa:  Thorium on A and Na-22
 +
 
 +
Ba-133-005.mpa: Thorium on A & Ba-133 on D
 +
 
 +
 
 +
==run list==
 +
 
 +
30 MeV electrons at 120 Hz rep rate with 0.12 A and 2.1 microsec width
 +
 
 +
Irradiation began at 7:44 am
 +
Irradiation ended at 10:15 am
 +
 
 +
at 11:59 am beam off time was 1 hr 44 min
  
 +
Sage Brush Ash sample ID = 190028-01
 +
Pure Selenium sample ID = 190028-02
 +
Nickel sample ID = 190028-03
  
−
[[File:SageBrushMg-vs-VolOil_Powell.pdf]]
 
  
−
=Preliminary results=
+
Samples are placed 11 cm from front face of Detector D
 +
 
 +
Mn was placed 10 cm in front of detector A
 +
 
 +
{| border="1"  |cellpadding="20" cellspacing="0
 +
|run # || Filename || Sample in Det A|| Sample In Det D || Time since Beam Off
 +
|-
 +
|6 || SeInDMnInA_006.mpa || Mn || Se (Se-75:264 & 279 keV, 119 day half life) || 1hr 52 min 20 sec
 +
|-
 +
| || || Mn || CS-137 (661 keV)|| Se out at 400, Cs in at 430
 +
|-
 +
| || || Mn || Sage Ash || Cs out at 500, Ash in at 530
 +
|-
 +
| || ||  || Cs || Ash out at 930, Cs in at 950
 +
|-
 +
| || ||  || Se (Se-81:276 & 290 keV, 57 min half life)|| Cs out at 1000 , Se in at 1040
 +
|-
 +
| || ||  || Cs || Se out at 1440 , Cs in at 1460
 +
|-
 +
| || ||  ||Ni || Cs out at 1500 , Ni in at 1550 (5% deadtime during measurement)
 +
|-
 +
| || ||  || Cs || Ni out at 1650 , Cs in at 1675
 +
|-
 +
| || ||  ||Ash || Cs out at 1700 , Ash in at 1725
 +
|-
 +
| || ||  || Cs || Ash out at 2325 , Cs in at 2350
 +
|-
 +
| || ||  || Se || Cs out at 2390 , Se in at 2400 (beam off 2 hr 33 min ago)
 +
|-
 +
| || ||  || Cs || Se out at 2800  , Cs in at 2850
 +
|-
 +
| || ||  ||Ash || Cs out at 2900 , Ash in at 2918 (2 hr 41 min after irradiation)
 +
|-
 +
| || ||  || Cs || Ash out at 3350 , Cs in at 3367
 +
|-
 +
| || ||  || Se || Cs out at 3410  , Se in at 3440
 +
|-
 +
| || ||  || Cs || Se out at 3840 , Cs in at 3850
 +
|-
 +
| || ||  ||Ash || Cs out at 3900 , Ash in at 3920
 +
|-
 +
| || ||  || Cs || Ash out at 4320 , Cs in at 4340
 +
|-
 +
| || ||  || Se || Cs out at 4400 , Se in at 4410
 +
|-
 +
| || ||  || Cs || Se out at 4810 , Cs in at 4825
 +
|-
 +
| || ||  ||Ash || Cs out at 4875  , Ash in at 4900
 +
|-
 +
| || ||  || Cs || Ash out at 5300 , Cs in at 5320
 +
|-
 +
| || ||  || Se || Cs out at 5380 , Se in at 5400
 +
|-
 +
| || ||  || Cs || Se out at 5800 , Cs in at 5820
 +
|-
 +
| || ||  ||Ash || Cs out at 5880 , Ash in at 5915
 +
|-
 +
| || ||  || Cs || Ash out at 6315 , Cs in at 6330
 +
|-
 +
| || ||  || Se || CS out at 6390 , Se in at 6425
 +
|-
 +
| || ||  || Cs || Se out at 6845 , Cs in at 6870
 +
|-
 +
| || ||  ||Ash || Cs out at 6930 , Ash in at 6950
 +
|-
 +
| || ||  || Cs || Ash out at 7350 (3 hrs 55 min after irradiation ended)
 +
|}
 +
 
 +
 
 +
 
 +
 
 +
{| border="1"  |cellpadding="20" cellspacing="0
 +
|run # || Filename || Sample in Det A|| Sample In Det D || Time since Beam Off
 +
|-
 +
|7 || SeInDMnInA_007.mpa || Mn || Ni || 3 hrs 55 min 44sec after irradiation, 4.78% deadtime, 11 cm from detector face
 +
|-
 +
| || ||  || Cs || Ni out after 300 , Cs in at 320
 +
|-
 +
| || ||  || Se || Cs out at 350 , Se in at 370    3.74% deadtime
 +
|-
 +
| || ||  || Cs || Se out at 770, Cs in at 785
 +
|-
 +
| || ||  ||Ash || Cs out at 850  , Ash in at 875 ( 4 hrs  10 min 16 sec)
 +
 
 +
|}
 +
<references/>
  
  
 
[[PAA_Research]]
 
[[PAA_Research]]

Latest revision as of 20:26, 23 May 2019

PAA_Research PAA on Sage Brush

Motivation

The volatile oil content of sage brush is known to be a strong indicator of both the flammability of sagebrush as well as its forage value for open range livestock<ref name="Sage1968">File:SageBrushMg-vs-VolOil Powell.pdf </ref>. The volatile oils in sagebrush leaves impede the growth of rumen micro-organisms thereby decreasing an animal's appetite. The amount of Magnesium in sagebrush leaves has been shown to be strongly correlated with the volatile oil content of sagebrush. We studied the potential to use Photon Activation Analysis at the Idaho Accelerator Center as a means to measure the Magnesium content of sagebrush. The figure below illustrates our ability to identify the presence of Magnesium in sagebrush leaves. With further work, this method has the potential to provide ranchers and fire prevention services with a means of monitoring the forage value and fire risk of Idaho's sagebrush population.

Preliminary results

MagInSagePAA 7-3-2017.png


10perc 07032017 1369keVLin.png

5/23/19

Calibration Detect A

Source Energy (keV0 Channel
Th Rod 238.8 (highest peak) 548.152
Ba-133 276.398 632.9
Th Rod 338.8 (4th highest) 772.106
Ba-133 356 811.78
Na-22 511 1159.92
Th Rod 583.4 (2nd highest peak) 1322.244
Cs-137 661.7 1497.84
Th Rod 911.2 (3rd highest) 2059.4
Na-22 1274.5 2875.50
Th Rod 2614.6 5886.485


MPA Fit: (-5.74857) + (0.445818)*x + (-2.04348e-7)*x^2

Calibration Detect D

Source Energy (keV Channel
Th Rod 238.8 (highest peak) 531.303
Ba-133 276.398 615.556
Th Rod 338.8 (4th highest) 253.581
Ba-133 356 792.917
Na-22 511 1138.136
Th Rod 583.4 (2nd highest peak) 1298.982
Cs-137 661.7 1473.827
Th Rod 911.2 (3rd highest) 2029.758
Na-22 1274.5 2839.048
Th Rod 2614.6 5824.23

MPA Fit: (0.0122021) + (0.449001)*x + (-3.08126e-8)*x^2


Run list


data/Dan-May 2019 Gallium run


thorium002.mpa: Thorium on A & D

cs-127-003.mpa: Thorium on A & Cs on D

Na-22-004.mpa: Thorium on A and Na-22

Ba-133-005.mpa: Thorium on A & Ba-133 on D


run list

30 MeV electrons at 120 Hz rep rate with 0.12 A and 2.1 microsec width

Irradiation began at 7:44 am Irradiation ended at 10:15 am

at 11:59 am beam off time was 1 hr 44 min

Sage Brush Ash sample ID = 190028-01 Pure Selenium sample ID = 190028-02 Nickel sample ID = 190028-03


Samples are placed 11 cm from front face of Detector D

Mn was placed 10 cm in front of detector A

run # Filename Sample in Det A Sample In Det D Time since Beam Off
6 SeInDMnInA_006.mpa Mn Se (Se-75:264 & 279 keV, 119 day half life) 1hr 52 min 20 sec
Mn CS-137 (661 keV) Se out at 400, Cs in at 430
Mn Sage Ash Cs out at 500, Ash in at 530
Cs Ash out at 930, Cs in at 950
Se (Se-81:276 & 290 keV, 57 min half life) Cs out at 1000 , Se in at 1040
Cs Se out at 1440 , Cs in at 1460
Ni Cs out at 1500 , Ni in at 1550 (5% deadtime during measurement)
Cs Ni out at 1650 , Cs in at 1675
Ash Cs out at 1700 , Ash in at 1725
Cs Ash out at 2325 , Cs in at 2350
Se Cs out at 2390 , Se in at 2400 (beam off 2 hr 33 min ago)
Cs Se out at 2800 , Cs in at 2850
Ash Cs out at 2900 , Ash in at 2918 (2 hr 41 min after irradiation)
Cs Ash out at 3350 , Cs in at 3367
Se Cs out at 3410 , Se in at 3440
Cs Se out at 3840 , Cs in at 3850
Ash Cs out at 3900 , Ash in at 3920
Cs Ash out at 4320 , Cs in at 4340
Se Cs out at 4400 , Se in at 4410
Cs Se out at 4810 , Cs in at 4825
Ash Cs out at 4875 , Ash in at 4900
Cs Ash out at 5300 , Cs in at 5320
Se Cs out at 5380 , Se in at 5400
Cs Se out at 5800 , Cs in at 5820
Ash Cs out at 5880 , Ash in at 5915
Cs Ash out at 6315 , Cs in at 6330
Se CS out at 6390 , Se in at 6425
Cs Se out at 6845 , Cs in at 6870
Ash Cs out at 6930 , Ash in at 6950
Cs Ash out at 7350 (3 hrs 55 min after irradiation ended)



run # Filename Sample in Det A Sample In Det D Time since Beam Off
7 SeInDMnInA_007.mpa Mn Ni 3 hrs 55 min 44sec after irradiation, 4.78% deadtime, 11 cm from detector face
Cs Ni out after 300 , Cs in at 320
Se Cs out at 350 , Se in at 370 3.74% deadtime
Cs Se out at 770, Cs in at 785
Ash Cs out at 850 , Ash in at 875 ( 4 hrs 10 min 16 sec)

<references/>


PAA_Research

Retrieved from "https://wiki.iac.isu.edu/index.php?title=PAA_Sage&oldid=126181"