Calculating the move - Revision history

Mcintyre: /* A summary of the spreadsheet calculations is a follows: */

2021-04-26T17:57:39Z

A summary of the spreadsheet calculations is a follows:

Mcintyre: /* Calculating Position of Each Bundle Support Mounting Rod */

2021-04-26T17:51:13Z

Calculating Position of Each Bundle Support Mounting Rod

Mcintyre: /* A summary of the spreadsheet calculations is a follows: */

2021-04-26T17:33:38Z

A summary of the spreadsheet calculations is a follows:

Mcintyre: /* Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line */

2021-04-21T18:17:35Z

Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line

Mcintyre: /* Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line */

2021-04-21T18:16:13Z

Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line

Mcintyre: /* Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line */

2021-04-21T18:13:45Z

Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line

Mcintyre: /* Calculating Position of Each Bundle Support Mounting Rod */

2021-04-21T18:08:01Z

Calculating Position of Each Bundle Support Mounting Rod

Mcintyre at 16:57, 12 April 2021

2021-04-12T16:57:37Z

Show changes

Mcintyre: /* Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line */

2021-04-12T16:51:30Z

Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line

Mcintyre: /* Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line */

2021-04-12T16:50:39Z

Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line

@@ Line 36: / Line 36: @@
 </p>
-<i><u>As a side note</u> - If required and finances permit, the 17 bundle supports can be easily redesigned for a different &beta; angle. This redesign would take less than an hour of CAD work, with a manufacturing turn-around time in as little as two days. Costs are estimated to be around [[New_Popsicle_Stick_Quote.pdf $5k]]. A CAD drawing of a new bundle support design, with the current forward and rear bundle half stagger, already exists. This new design incorporates updated locations of the threaded holes for mounting the clamps that keep the bundle straps in place; thereby, permitting a slightly larger range of coverage on the focal plane and a more secure way to hold the fiber straps. The best time to replace/modify the bundle supports, if so desired, would be during fiber replacement. This way the new fibers can be mounted to the new bundle support outside the tagger hall, before ever making it to JLab. A conservative time estimate for changing the TAGM fiber configuration would be approximately two days (16 hours).</i>
+<i><u>As a side note</u> - If required and finances permit, the 17 bundle supports can be easily redesigned for a different &beta; angle. This redesign would take less than an hour of CAD work, with a manufacturing turn-around time in as little as two days. Costs are estimated to be around [[media:New_Popsicle_Stick_Quote.pdf |$5k]]. A CAD drawing of a new bundle support design, with the current forward and rear bundle half stagger, already exists. This new design incorporates updated locations of the threaded holes for mounting the clamps that keep the bundle straps in place; thereby, permitting a slightly larger range of coverage on the focal plane and a more secure way to hold the fiber straps. The best time to replace/modify the bundle supports, if so desired, would be during fiber replacement. This way the new fibers can be mounted to the new bundle support outside the tagger hall, before ever making it to JLab. A conservative time estimate for changing the TAGM fiber configuration would be approximately two days (16 hours).</i>
 <p>

@@ Line 36: / Line 36: @@
 </p>
-<i><u>As a side note</u> - If required and finances permit, the 17 bundle supports can be easily redesigned for a different &beta; angle. This redesign would take less than an hour of CAD work, with a manufacturing turn-around time in as little as two days. Costs are estimated to be around $4k. A CAD drawing of a new bundle support design already exists, which incorporates updated locations of the threaded holes for mounting the clamps that keep the bundle straps in place. The best time to replace/modify the bundle supports, if so desired, would be during fiber replacement. This way the new fibers can be mounted to the new bundle support outside the tagger hall, before ever making it to JLab. A conservative time estimate for changing the TAGM fiber configuration would be approximately two days (16 hours).</i>
+<i><u>As a side note</u> - If required and finances permit, the 17 bundle supports can be easily redesigned for a different &beta; angle. This redesign would take less than an hour of CAD work, with a manufacturing turn-around time in as little as two days. Costs are estimated to be around [[New_Popsicle_Stick_Quote.pdf $5k]]. A CAD drawing of a new bundle support design, with the current forward and rear bundle half stagger, already exists. This new design incorporates updated locations of the threaded holes for mounting the clamps that keep the bundle straps in place; thereby, permitting a slightly larger range of coverage on the focal plane and a more secure way to hold the fiber straps. The best time to replace/modify the bundle supports, if so desired, would be during fiber replacement. This way the new fibers can be mounted to the new bundle support outside the tagger hall, before ever making it to JLab. A conservative time estimate for changing the TAGM fiber configuration would be approximately two days (16 hours).</i>
 <p>

@@ Line 36: / Line 36: @@
 </p>
-<i><u>As a side note</u> - If required and finances permit, the 17 bundle supports can be easily redesigned for a different &beta; angle. This redesign would take less than an hour of CAD work, with a manufacturing turn-around time in as little as two days. Costs are estimated to be around $2k. A CAD drawing of a new bundle support design already exists, which incorporates updated locations of the threaded holes for mounting the clamps that keep the bundle straps in place. The best time to replace/modify the bundle supports, if so desired, would be during fiber replacement. This way the new fibers can be mounted to the new bundle support outside the tagger hall, before ever making it to JLab. A conservative time estimate for changing the TAGM fiber configuration would be approximately two days (16 hours).</i>
+<i><u>As a side note</u> - If required and finances permit, the 17 bundle supports can be easily redesigned for a different &beta; angle. This redesign would take less than an hour of CAD work, with a manufacturing turn-around time in as little as two days. Costs are estimated to be around $4k. A CAD drawing of a new bundle support design already exists, which incorporates updated locations of the threaded holes for mounting the clamps that keep the bundle straps in place. The best time to replace/modify the bundle supports, if so desired, would be during fiber replacement. This way the new fibers can be mounted to the new bundle support outside the tagger hall, before ever making it to JLab. A conservative time estimate for changing the TAGM fiber configuration would be approximately two days (16 hours).</i>
 <p>

← Older revision		Revision as of 18:17, 21 April 2021
Line 113:		Line 113:

	==Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line==		==Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line==
−	At this point the exact location for each bundle support rod is known. These locations place the scintillating fibers of each bundle support at their optimal location. Unfortunately these locations deviate slightly from a straight line. To correct this deviation and find a compromise the their location that's within the TAGM required tolerance, we must use ROOT and fit a first order polynomial to the calculated locations. A template [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/TAGM_9_2GeV_Bundle_Rod_Fit.C C++ file] has been written for this purpose. Once the arrays used for the rods' x and y locations are updated for the desired tagging energy spectrum, then the macro can be run or the code can be copy & pasted directly into ROOT's command line. The generated histograms, for the forward and rear rods, can then be fitted to a first order polynomial (pol1) using the Fitting Tool. Several fit equations are already recorded in a ~~text file~~ [~~http (~~TAGM_Weights.~~txt)~~]. The fits are then utilized back in the Excel file to determine the "Y-Fit" location for each rod X location. This way the parallel rails can be orientated based on these numbers and the three rail components required for the TAGM move can be designed.	+	At this point the exact location for each bundle support rod is known. These locations place the scintillating fibers of each bundle support at their optimal location. Unfortunately these locations deviate slightly from a straight line. To correct this deviation and find a compromise the their location that's within the TAGM required tolerance, we must use ROOT and fit a first order polynomial to the calculated locations. A template [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/TAGM_9_2GeV_Bundle_Rod_Fit.C C++ file] has been written for this purpose. Once the arrays used for the rods' x and y locations are updated for the desired tagging energy spectrum, then the macro can be run or the code can be copy & pasted directly into ROOT's command line. The generated histograms, for the forward and rear rods, can then be fitted to a first order polynomial (pol1) using the Fitting Tool. Several fit equations are already recorded in a [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/TAGM_Weights.C fit function repository file]. The fits are then utilized back in the Excel file to determine the "Y-Fit" location for each rod X location. This way the parallel rails can be orientated based on these numbers and the three rail components required for the TAGM move can be designed.

@@ Line 113: / Line 113: @@
 ==Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line==
-At this point the exact location for each bundle support rod is known. These locations place the scintillating fibers of each bundle support at their optimal location. Unfortunately these locations deviate slightly from a straight line. To correct this deviation and find a compromise the their location that's within the TAGM required tolerance, we must use ROOT and fit a first order polynomial to the calculated locations. A template C++ [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/TAGM_9_2GeV_Bundle_Rod_Fit.C file] has been written for this purpose. Once the arrays used for the rods' x and y locations are updated for the desired tagging energy spectrum, then the macro can be run or the code can be copy & pasted directly into ROOT's command line. The generated histograms, for the forward and rear rods, can then be fitted to a first order polynomial (pol1) using the Fitting Tool. Several fit equations are already recorded in a text file [http (TAGM_Weights.txt)]. The fits are then utilized back in the Excel file to determine the "Y-Fit" location for each rod X location. This way the parallel rails can be orientated based on these numbers and the three rail components required for the TAGM move can be designed.
+At this point the exact location for each bundle support rod is known. These locations place the scintillating fibers of each bundle support at their optimal location. Unfortunately these locations deviate slightly from a straight line. To correct this deviation and find a compromise the their location that's within the TAGM required tolerance, we must use ROOT and fit a first order polynomial to the calculated locations. A template [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/TAGM_9_2GeV_Bundle_Rod_Fit.C C++ file] has been written for this purpose. Once the arrays used for the rods' x and y locations are updated for the desired tagging energy spectrum, then the macro can be run or the code can be copy & pasted directly into ROOT's command line. The generated histograms, for the forward and rear rods, can then be fitted to a first order polynomial (pol1) using the Fitting Tool. Several fit equations are already recorded in a text file [http (TAGM_Weights.txt)]. The fits are then utilized back in the Excel file to determine the "Y-Fit" location for each rod X location. This way the parallel rails can be orientated based on these numbers and the three rail components required for the TAGM move can be designed.
@@ Line 123: / Line 123: @@
 <ul>
-    <li style="padding-bottom: 16px;">Copy and paste the locations for the bundle support rods into the the fitting [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/TAGM_9_2GeV_Bundle_Rod_Fit.C file] and run in ROOT.</li>
+    <li style="padding-bottom: 16px;">Copy and paste the locations for the bundle support rods into the the [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/TAGM_9_2GeV_Bundle_Rod_Fit.C fitting file] and run in ROOT.</li>
-    <li>Fit the histograms to a straight line and input the resulting fit equations into both [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/TAGM_Weights.C fit function repository file] and the [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/Bundle-Support-4-2021.xlsx Excel file] for calculating bundle support locations </li>
+    <li>Fit the histograms to a straight line (pol1) and input the resulting fit equations into both [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/TAGM_Weights.C fit function repository file] and the [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/Bundle-Support-4-2021.xlsx Excel file] for calculating bundle support locations </li>
     <ul>
        <li style="padding-bottom: 16px;">The Excel file will provide the "Fit-Y" locations that are used in the CAD drawing to design the three unique parallel rail pieces that are needed for each TAGM move.</li>

← Older revision		Revision as of 18:08, 21 April 2021
Line 1:		Line 1:
	==Calculating Position of Each Bundle Support Mounting Rod==		==Calculating Position of Each Bundle Support Mounting Rod==

−	An Excel [/~~nfs~~/~~direct~~/~~annex~~/~~mcintyre~~/TAGM-4-2021/Bundle-Support-4-2021.xlsx spreadsheet~~(placeholder)~~] has been created to calculate the location of the bundle supports' mounting rods with respect to the focal plane coordinate system. This spreadsheet also calculates the length of the parallel railing end supports which need to be fabricated anew for each unique TAGM location on the focal plane. One last, but very important thing that the spreadsheet calculates is the shim size needed, during TAGM realignment, in order to achieve the proper tow angle between bundle supports during mounting. In addition to the spreadsheet, an AutoCAD [https://zeus.phys.uconn.edu/~~wiki~~/~~index~~.~~php/Student_Projects_in_Nuclear_Physics~~ drawing~~(placeholder)~~] used to design the three parallel rail components needed for each unique tagging energy spectrum starting position of the TAGM and a [https://zeus.phys.uconn.edu/~~wiki~~/~~index~~.~~php/Student_Projects_in_Nuclear_Physics~~ drawing~~(placeholder)~~] for the current setup (β = 12.5<sup>o</sup> to 11.06<sup>o</sup>). These files are in US standard units (inches) and to scale with a tolerance of ± 0.001 inch.	+	An Excel [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/Bundle-Support-4-2021.xlsx spreadsheet] has been created to calculate the location of the bundle supports' mounting rods with respect to the focal plane coordinate system. This spreadsheet also calculates the length of the parallel railing end supports which need to be fabricated anew for each unique TAGM location on the focal plane. One last, but very important thing that the spreadsheet calculates is the shim size needed, during TAGM realignment, in order to achieve the proper tow angle between bundle supports during mounting. In addition to the spreadsheet, an AutoCAD [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/Parallel_Railing_Parts.dwg drawing] used to design the three parallel rail components needed for each unique tagging energy spectrum starting position of the TAGM and a [https://zeus.phys.uconn.edu/halld/tagger/TAGM-4-2021/Beta-Angle12_5-to-11_06deg_modified.dwg drawing] for the current setup (β = 12.5<sup>o</sup> to 11.06<sup>o</sup>). These files are in US standard units (inches) and to scale with a tolerance of ± 0.001 inch.

← Older revision		Revision as of 16:51, 12 April 2021
Line 158:		Line 158:

	[[Image:quote.png\|center\|thumb\|750px\|Figure 33: PROTOLAB [[media:Quote 7048-123.pdf\|quote]] for the 6 GeV move components.]]		[[Image:quote.png\|center\|thumb\|750px\|Figure 33: PROTOLAB [[media:Quote 7048-123.pdf\|quote]] for the 6 GeV move components.]]
		+
		+	[[Image:Fwd_Rod_8GeV.png\|center\|thumb\|750px\|Figure]]
		+
		+	[[Image:Rear_Rod_8GeV.png\|center\|thumb\|750px\|Figure]]

← Older revision		Revision as of 16:50, 12 April 2021
Line 114:		Line 114:
	==Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line==		==Fitting the Position of Each Bundle Support Mounting Rod to a Straight Line==
	At this point the exact location for each bundle support rod is known. These locations place the scintillating fibers of each bundle support at their optimal location. Unfortunately these locations deviate slightly from a straight line. To correct this deviation and find a compromise the their location that's within the TAGM required tolerance, we must use ROOT and fit a first order polynomial to the calculated locations. A template C++ file [http: (TAGM_8GeV_Bundle_Rod_Fit.C)] has been written for this purpose. Once the arrays used for the rods' x and y locations are updated for the desired tagging energy spectrum, then the macro can be run or the code can be copy & pasted directly into ROOT's command line. The generated histograms, for the forward and rear rods, can then be fitted to a first order polynomial (pol1) using the Fitting Tool. Several fit equations are already recorded in a text file [http (TAGM_Weights.txt)]. The fits are then utilized back in the Excel file to determine the "Y-Fit" location for each rod X location. This way the parallel rails can be orientated based on these numbers and the three rail components required for the TAGM move can be designed.		At this point the exact location for each bundle support rod is known. These locations place the scintillating fibers of each bundle support at their optimal location. Unfortunately these locations deviate slightly from a straight line. To correct this deviation and find a compromise the their location that's within the TAGM required tolerance, we must use ROOT and fit a first order polynomial to the calculated locations. A template C++ file [http: (TAGM_8GeV_Bundle_Rod_Fit.C)] has been written for this purpose. Once the arrays used for the rods' x and y locations are updated for the desired tagging energy spectrum, then the macro can be run or the code can be copy & pasted directly into ROOT's command line. The generated histograms, for the forward and rear rods, can then be fitted to a first order polynomial (pol1) using the Fitting Tool. Several fit equations are already recorded in a text file [http (TAGM_Weights.txt)]. The fits are then utilized back in the Excel file to determine the "Y-Fit" location for each rod X location. This way the parallel rails can be orientated based on these numbers and the three rail components required for the TAGM move can be designed.
		+
		+
		+	<gallery caption="Fitting the calculations to real life" widths="450px" heights="450px" class="center">
		+	Fwd_Rod_8GeV.png\|Figure 2: Histogram of the bundle supports' forward rod position (*) in focal plane coordinates. The red line is a first order polynomial fit (pol1) using the ROOT fitter.
		+	Rear_Rod_8GeV.png\|Figure 3: Histogram of the bundle supports' rear rod position (*) in focal plane coordinates. The red line is a first order polynomial fit (pol1) using the ROOT fitter.
		+	</gallery>