Construction of the Full-Scale Tagger Microscope
This summer, I (Micah Warren) am constructing seven new bundles to replace old ones in the tagger microscope. The following pages provide documentation:
2015 and Earlier
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
Here is a master document which describes the procedures: Construction Plan for the Tagger Microscope
End Milling Procedure Discontinued Summer 2017
Hot Water Straightening Light Guides Procedure Discontinued Jan 2015
Fiber Water Stain Cleaning Procedure Discontinued Summer 2014
Hot Water 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.
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
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 - Fall 2013
- Creating/Editing mSQL Databases for CODA
- Alex Somov's instructions for running the CODA-based DAQ
- VME discriminator manual
- VME FADC250 manual (firmware update 90E, firmware update C01)
- VME F1TDC manual (latest firmware update)
- Caen QDC v792 manual
- VME Trigger Interface (old-style VME) manual
- VXS Trigger Interface (new-style VXS) manual
- Operation of CODA Run Control - Fall 2015
- Analyzer - software package that extracts pulse information from CODA data files and stores them in a root tree.
Hot Air Bending Box
After our experience with with heating fibers in water for straightening and bending, we decided to change our procedure and use hot air instead of water. The following pages show information about the heating box and the program used to run it.
Intermediate Storage Box
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.
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.
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.
Filling Tank / Filling PVC / Water Quality Information
Machine Shop Priorities are located here
Past Bundle Production Documents
Map of Lab 405 [Out of date as of 6/19/17]