Difference between revisions of "Construction of the Full-Scale Tagger Microscope"
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=Current Work= | =Current Work= | ||
| − | We are currently in production of 12 additional fiber bundles to replace bundles which are currently installed in the microscope. We found that our light guide fibers were not double clad, but were only single clad. In August and September of 2014, we received a new order of BCF-98 and BCF-20 which we verified as multi-clad using EDX techniques. In addition to having a second cladding layer, we are also attempting to maintain the optical qualities best by minimizing strain on fibers by removing some of the fiber procedures. | + | We are currently in production of 12 additional fiber bundles to replace bundles which are currently installed in the microscope. We found that our light guide fibers were not double clad, but were only single clad. In August and September of 2014, we received a new order of BCF-98 and BCF-20 which we verified as multi-clad using [[Cladding Images|EDX techniques]]. In addition to having a second cladding layer, we are also attempting to maintain the optical qualities best by minimizing strain on fibers by removing some of the fiber procedures. |
Current progress is being kept in the [https://docs.google.com/a/uconn.edu/spreadsheets/d/1AZPVzbwDgBWl5UXUVSnz_8_0yO6rmNUTt_MeylHasTQ/ Fibers - 2015 Google Spreadsheet]. | Current progress is being kept in the [https://docs.google.com/a/uconn.edu/spreadsheets/d/1AZPVzbwDgBWl5UXUVSnz_8_0yO6rmNUTt_MeylHasTQ/ Fibers - 2015 Google Spreadsheet]. | ||
Revision as of 15:14, 16 January 2015
Current Work
We are currently in production of 12 additional fiber bundles to replace bundles which are currently installed in the microscope. We found that our light guide fibers were not double clad, but were only single clad. In August and September of 2014, we received a new order of BCF-98 and BCF-20 which we verified as multi-clad using EDX techniques. In addition to having a second cladding layer, we are also attempting to maintain the optical qualities best by minimizing strain on fibers by removing some of the fiber procedures.
Current progress is being kept in the Fibers - 2015 Google Spreadsheet.
Procedures for Tagger Microscope Construction
Straightening Light Guides Procedure Discontinued Jan 2015
Fiber Cleaning Procedure Discontinued Summer 2014
Fiber Bending Procedure Discontinued Jan 2015
Fiber Painting Procedure Discontinued May 2014
Fiber Gluing Procedure Discontinued Spring 2014
A List of Specifications/Manuals for Items in Lab 405
This page has the documentation for the various procedures and pieces of equipment that are used in the bending tank, the splicing unit, and elsewhere in 405. Documents for 405
Miscellaneous Fiber Testing
Below are the various tests that were conducted on the fibers to determine their durability when in contact with the alcohol that will be used to clean them. Also included are the strength tests that were conducted on the fibers that were fused with the old ferrules.
Ferrule Measurements
In hopes of understanding the bulge in the spliced region of the fibers, the ferrules they are spliced in were photographed under a microscope and measured using a tracker program that allows for in-photo calibration and measurement. The ferrules were placed as perpendicular to the table as possible in order to get the most flat, head on shot of the ferrules. The error in the measurement of the angles was quite high. Moving the compass only a little bit (in the tracker program) lead to very different degrees read. Because of this I would estimate the angle to be off anywhere from +- 1-2 degrees. I would say that the lengths measured have an error on the order of +- .05-.1 mm
New Ferrule Measurement Photographs
Quality Control Procedures
Fiber transmission measurements were carried out in Lab 402 using a flash ADC and a VME-based data acquisition system that was loaned to UConn by Jefferson Lab. Our contact at Jlab for this system is Alex Somov. Setup and operation of the CODA data acquisition platform is described here.
- Description and Layout of the VME Data Acquisition Setup
- Procedure for Operation of CODA Run Control
- Creating/Editing mSQL Databases for CODA
- Alex Somov's instructions for running the CODA-based DAQ
- VME discriminator manual
- VME FADC250 manual
- VME F1TDC manual
- Analyzer - software package that extracts pulse information from CODA data files and stores them in a root tree.
Lab Journals / Research Progress
The following page has the lab journals of Ann Marie and the undergraduate workers. Lab Journals
Past Goals and Production Documents
If you want to see our previous construction goals you can access them below.
Construction Plan for the Tagger Microscope and Active Collimator
LabView Program Explanation - This page details the work that has gone into the LabView program that was written to control the heaters and pumps for the bending tank in 405.
Temperature Measurements
This section describes the work that has gone into the construction of the thermistor for the bending tank in 405. It also has some materials devoted to describing the function and properties of a thermistor and the method used to build the one used here.
Thermistor Construction Journal
Filling Tank / Filling PVC / Water Quality Information
Important procedure to follow when filling the tank
Water Tank Instructions and Diagrams
Machine Shop Priorities are located here
Past Bundle Production Documents
Fiber Heating Data (Straightening and Bending)