Construction of the Full-Scale Tagger Microscope

=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=

Fiber Rough Cut Procedure

Straightening Light Guides Procedure Discontinued Jan 2015

Fiber Cleaning Procedure  Discontinued Summer 2014 

End Milling Procedure

Fiber Polishing Procedure

Fiber Fusing Procedure

Fiber Bending Procedure  Discontinued Jan 2015 

Fiber Painting Procedure Discontinued May 2014 

Fiber Gluing Procedure  Discontinued Spring 2014 

Fiber Testing Procedure

=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.

Alcohol Tests

Epoxy Tests

Strength Tests

Fiber Painting

Visual Inspection

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

Measurement Photographs

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
 * [[media:Jlab_VME_discriminator_manual.pdf|VME discriminator manual]]
 * [[media:FADC250UsersManual.pdf|VME FADC250 manual]]
 * [[media:Jlab_F1_TDC_manual.pdf|VME F1TDC manual]]
 * 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 page shows information about the heating box.

Fiber Heating 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.

Construction Plan for the Tagger Microscope and Active Collimator

Previous Construction Goals

List of CAD Drawings

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

Pictures

Water Quality Testing

Machine Shop Priorities are located | here

Past Bundle Production Documents
Bundle Production Progress

Rough Cut Travelers

Fusing Statistics

Fiber Heating Data (Straightening and Bending)

= Formatting Examples = Wiki Formatting Examples

=Lab Maps=

Map of Lab 403

Map of Lab 405