AssemblyInstructions..
Contents
1. Mac with a terminal emulator program such as hyperterm or Zterm to display data and send keyboard commands to the DAQ 2 Quick Start gt Steps leading to a working CRD Assemble four counters section 3 Plug in components section 4 Power up section 5 Commission CRD section 6 Take data Capture data to a file See CRD Users Manual Measure geometry and upload to cosmic e Lab See CRD Users Manual 3 Counter Assembly Read entire section before starting General Tips e When working with electrical tape pull tape off roll then let it relax by hanging it vertically and letting it rest for 3 5 minutes e Handle scintillator with the enclosed cotton gloves e The PMTs are expensive electronic devices The windows are easily damaged by excessive pressure DO NOT force the PMT against the scintillator cookie Assembly Steps e Wrap the scintillator e Attach the photomultiplier tube e Assemble the PVC support Parts Provided Plastic scintillator with cookie Photomultiplier Tube PMT Aluminum foil PVC support Lightproof black wrapping material Optical grease User Provided Materials 3 4 wide electrical tape 1 2 Teflon plumber s tape 3 or 2 wide electrical tape Scotch tape Applicator stick Tools Needed Scissors Straight edge Razor blades Protractor Multimeter VOM Step 1 Wrap the Scintillator The scintillator must be wrapped to block transmission of ambient light Alum2. creative but avoid bulk e Trim the material behind the cookie and secure with electrical tape e Apply a piece of 3 electrical tape to protect the black material from damage in a later step Start at the cookie and run the tape across the face at an 18 angle measured from the long side Do this on both sides of the scintillator Step 2 Attach the photomultiplier tube Step 3 Assemble the PVC support DO NOT force the PMT against the cookie e Apply a small amount about the size ofa pea of optical grease to the PMT e Hold the PMT in contact with the cookie face e Gently press the two faces together e Wrap the joint use 3 electrical tape Carefully slide the assembly into the PVC support tube be sure to not crimp the wires Stop if there is excessive resistance Guide the assembly until the PMT is 1 2 inches from the end of the slot the PVC will extend beyond the assembly TEN Measure the angle between the PVC support and the long side of the assembly Adjust the PVC support until this angle is 18 This will maintain alignment between the cookie and PMT faces e Wrap the outside of the PVC with 3 tape near the PMT cookie interface e Tape the PVC to the face of the scintillator assembly with 3 electrical tape e Slide the PMT cap into the end that extends beyond the scintillator assembly and circle tube with tape this provides pressure point to clamp the assembly inside the PVC
3. slot 4 Detailed PLUG IN Sequence Plan locations for your GPS counters DAQ and PDU and computer Preplanning e Place the GPS antenna at a window with at least a partial southern exposure if possible where it has a clear view of the vertical sky The antenna is sensitive enough to acquire satellites from inside the window The antenna may be placed outside along with the temperature sensor but not the gray box containing the GPS module The GPS module may be located up to 100 feet from the DAQ using the CAT 5 cable provided e DAQ lives near the data computer e PDU enables control of voltage levels and power supply to PMTs Must be within 50 ft of counters Extensions are possible user supplied e Counter placement driven by experiment type array or stacked See CRD Users Manual DO NOT POWER UP SYSTEM UNTIL ALL COMPONENTS ARE IN PLACE to avoid overvoltage to the PMT git phono cable male connectors OR iN MHL 2 DAQ phono jack gt PDU single side outlet 6 ft mono l 4 gt PDU four side outlets 50 ft stereo phono cable 3 PMTs counters power cables 5 POWER UP Sequence after plugging in all components 1 2 3 4 5 Set potentiometers on the PDU to minimum fully rotate counterclockwise Plug 5V DC power supply into 110V wall outlet Check DAQ two yellow LEDs next to USB for power gt 3V 5V Verify power to GPS module red green LED on module box Red green toget
4. NS 1a Parts List Subcomponents Counter Assembly Instructions Counters 4 To be assembled from the following pieces Scintillators 4 10 x12 x1 2 scintillator plastic blocks with polished edges and light guide cookie glued to one corner Handle with cotton gloves Heavy Gauge Aluminum Foil 1 38 x64 piece for covering scintillator Lightproof Black Wrapping Material 1 27 x36 piece for covering scintillator Support Tubes 4 24 lengths of PVC pipe slotted to accept wrapped scintillator and to align photomultiplier tube PMT with optical cookie Photomultiplier Tubes PMTs 4 Electron Tube Model P30CW5 photodetector packages including cables for signal power and control Handle with care Optical Couplant 1 Small film type canister containing optical grease used to interface the PMT to the light guide cookie Signal Extension Cables for PMTs 4 50 ft cables with male BNC connectors on each end Power Extension Cables for PMTs 4 50 ft stereo audio cables with one male and one female connector to extend power and control circuits from PMTs 1 Power Distribution Unit PDU 1 Box with 5VDC power input and 4 outputs including potentiometer controls for each control circuit Power Cable for PDU 1 6 ft mono audio cable male connectors on both ends to get power from the connection provided on the DAQ circui
5. QuarkNet Cosmic Ray Detector Assembly Instructions for Series 6000 Version 2 2 Date 31 Aug 2007 Please send comments to rspete fnal gov Read Me First Document Purpose How to build a cosmic ray detector CRD from components and enable raw data flowing into a capture file Not Covered Configuring CRD data rate plateauing individual counters details of serial communication application hyperterm or Zterm These details are covered in the QuarkNet Walta CROP Cosmic Ray Detectors User s Manual http quarknet fnal gov toolkits ati det user pdf Assembly Required User must assemble some components PMT scintillator wrapping materials support tube gt counter Previously assembled components GPS DAQ PDU Warnings Do not handle the scintillator material with bare hands Read Material Safety Data Sheet MSDS for optical couplant Seat all plugs completely Improperly seated plugs can lead to power shorts Avoid over pressure on the PMT window PMT power up Make sure that voltage levels are set to minimum for power up control stems on the PDU potentiometers rotated counterclockwise Do not power up until all components are plugged into their proper connections Check Parts Verify Contact your QuarkNet mentor if parts are missing Instruction Sections Parts List Quick Start Detailed PLUG IN Sequence POWER UP Sequence Commissioning Sequence Troubleshooting FAQs 00 EO SO Oo I
6. her power up condition no fix Red green together amp sequence of green searching and of sats Green only long amp of short gt indicates sats Check control voltage on each PDU channel black socket gt ground yellow socket gt positive 6 Commissioning Sequence 1 Install USB driver from silabs onto data computer http www silabs com tqwWebApp public web_content products Microcontrollers USB en mcu_vcp htm 2 ous wo N Open USB connection from computer to DAQ use terminal emulator hyperterm or Zterm See CRD Users Manual Appendix C Terminal Emulator Setup default baud 115200 Verify GPS signal on DAQ white LED marked 1pps should be blinking next to GPS jack GPS IN may take 1 hour to lock signal Check number GPS satellites run DG command Plateau and test counters Gee CRD Users Manual Chapter 6 Configure DAQ for coincidence gate width and delay run V1 and V2 commands See CRD Users Manual Chapter 6 Take data begin Capture Text with hyperterm or Zterm 8 Enter list of commands to capture configuration state of DAQ CD gt COUNTER DISABLE H1 gt HELP 1 H2 gt HELP 2 DG gt GPS DS gt SCALAR COUNTS DC gt CONTROL REGISTERS DT gt TIME CONTROL BA gt BAROMETER TH gt TEMPERATURE TI gt TIME V1 gt VIEW REGISTERS V2 gt VIEW VOLTAGES CE gt COUNTER ENABLE 9 Measure and input CRD geometry 10 Upload da
7. inum foil and black wrapping material are provided The wrapping and taping are much like wrapping a present Lay out the material lay the scintillator down fold and tape Cut aluminum foil four pieces sized 18 X 26 45 7 cm x 66 0 cm Lay the foil on a workspace with shiny side up Smooth foil Lay the scintillator at one end of the foil Use cotton gloves Fold the foil over one of the long edges Fold foil around the other plate edges and tape Trim foil to cover just behind the counter cookie using a razor blade Completely cover the scintillator While minor Use Teflon plumber s tape to wrap the edges wrinkles are acceptable avoid holes or tears of the cookie to block light do not cover the Add additional repair pieces to patch any face Avoid scratching the face of the cookie noticeable tears or holes This is the transmission window for the light pulses Cut black wrapping material four pieces sized 9 1 2 X 23 1 2 24 1 cm x 59 7 cm Lay the black wrapping material down on a workspace with the white side up Lay scintillator at one end of the material Fold black wrapping material around the short edge opposite the cookie Tape edge with electrical tape to hold the material in place Flip plate pull material tight and tape other edge Completely cover remaining exposed foil using 1 and 3 electrical tape e Reinforce each corner with extra tape using gift wrap folds Be
8. t board Cloth Gloves 2 Pair clean soft cotton gloves used for handling scintillator materials to avoid dirt scratches and fingerprints Specification Sheets 4 Spec sheets for PMT scintillator plastic optical couplant GPS antenna Safety Data Sheet 1 Material Safety Data Sheet MSDS for optical couplant 1b Parts List Large Components GPS Receiver Assembly GPS 1 The GPS receiver and interface adapter are in a small grey plastic box to which you will attach three items A the 100 ft CAT 5 coax cable which connects the GPS to the DAQ B the temperature sensor cable with the red weatherproof coating on the sensing end C the GPS antenna with its 9 ft cable Data Acquisition Circuit Board DAQ 1 This circuit board contains the logic timing multipliers and discriminators for processing the input signals from the counters and creating the output data stream It has interfaces to the counters the GPS and your PC Many of the devices on this circuit board have been preset Do not change any settings unless specifically asked for in the instructions The circuit board has been loaded with the current revision level of QuarkNet firmware USB Interface Cable 1 9 ft USB2 0 A to B interface cable for connecting the DAQ to your PC s USB port Power Supply 1 Power supply with 5VDC 1A regulated output female connector to provide power to the DAQ Note You must provide a PC or
9. ta to cosmic e Lab quarknet fnal gov e lab 7 Troubleshooting e Ifthe DAQ does not respond to hyperterm and ZTerm commands check the USB cable connection e Ifthe Terminal Emulator is not responding push the DAQ Board Reset button 8 FAQs e How do I reset DAQ Pushing the BOARD RESET button next to the GPS FANOUT will do a TOTAL reset Pushing the button COUNTER RESET next to the count display will only reset the display e Topics found in QuarkNet CRD Users Manual PC connection DAQ commands Capture data hyperterm or ZTerm Placement of counters and GPS Plateauing Coincidence Discrimination Pressure Temp measure CPLD frequency
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