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     ![](media/image1.wmf){width="0.44166666666666665in"                    
     height="0.41597222222222224in"} **Fermilab Directorate**               

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**MEMORANDUM OF UNDERSTANDING**

**FOR THE 2005 MESON TEST BEAM PROGRAM**

**T953**

**University of Iowa Čerenkov Light Test**

September, 2005

INTRODUCTION 3

I. PERSONNEL AND INSTITUTIONS: 5

II\. EXPERIMENTAL AREA, BEAMS AND SCHEDULE CONSIDERATIONS 5

III\. RESPONSIBILITIES BY INSTITUTION - NON FERMILAB 6

IV\. RESPONSIBILITIES BY INSTITUTION - FERMILAB 6

4.1 Fermilab Beams Division 6

4.2 Fermilab Particle Physics Division 6

4.3 Fermilab Computing Physics Division 7

4.4 Fermilab ES&H Section 7

V. Summary of Costs 7

VI\. SPECIAL CONSIDERATIONS 8

SIGNATURES 9

appendix i - Appendix II - prep equipment pool needs 10

APPENDIX II - Hazard Identification Checklist 11

INTRODUCTION

This Memorandum of Understanding requests beam time at Fermilab during
the Winter 2005- 2006 Meson Test Run to measure the signal size from
various configurations of Čerenkov light generators and phototubes.

The University of Iowa has pioneered in application of Čerenkov
radiation for high-energy detectors. One of the results of this effort
is the huge forward calorimeter for CMS (at the LHC) with a half million
quartz fibers in iron. The laboratory plans to use this expertise to
develop a variety of detectors making use of Čerenkov light and
phototubes as the active elements in calorimeters for high-energy
particles. There are three immediate applications related to forward
angle calorimeters in CMS; ZDC, CASTOR, and the HE upgrade.

The University of Iowa will make the detailed design for the Zero Degree
Calorimeter. The proposed design uses tungsten plates interleaved with
sheets of quartz fibers. In the EM part the plates are perpendicular to
the beam, in the rear hadronic part they are at an angle of 45^o^.
Because of the limited cross sectional area of the plates, there will be
considerable leakage of shower particles out of the four sides. We plan
to measure this leakage and compare the results with simulations. The
leakage will be measured by placing a polished aluminum tank, 4 in wide,
20 in long and 8 in deep on top of absorber material made of blocks of
tantalum and copper. The fluid in the tank, that generates the Čerenkov
light, could be water; but ethylene glycol (antifreeze, but without the
added color) would be better. Being non-polar, it is not corrosive like
water, and it has a higher index of refraction, l.42 vs. 1.33. The
larger index of refraction would result in more Čerenkov light and
better coupling to the PMT.

The University of Iowa has been asked to design the light guides for
CASTOR that take the light from the quartz plates, in which the light is
produced, and carry it to the PMTs. These plates, interleaved with
tungsten plates, are oriented at 45^o^.

The University of Iowa has been asked to consider methods for replacing
the scintillators in the HE hadronic calorimeter with quartz plates,
which will not be harmed by the high radiation levels expected with the
proposed LHC upgrade in luminosity. The success of this project depends
on finding an extremely effective way to couple the Čerenkov light into
wave-length shifting fibers.

These various configurations can all be simulated to some degree, but it
is essential that the simulations be accompanied by laboratory tests. In
most cases 120 GeV protons will be adequate, but in some cases there
will also need to be tests using 8 and/or 16 GeV electrons.

For all of the tests, the setup will be small, at most only a few cubic
feet. There will be no gas supply or complicated mechanical devices. The
active devices will be a few PMTs.

The overall project will consist of a number of short, simple
experiments, each lasting from one to three days. The MTB is an
excellent facility for such tests.

This is a memorandum of understanding between FNAL and the U of Iowa
research group. This memorandum is intended solely for the purpose of
providing a work allocation for FNAL and the U of Iowa. It reflects an
arrangement that is currently satisfactory to the parties involved. It
is recognized, however, that changing circumstances of the evolving
research program will necessitate revisions. The parties agree to
negotiate amendments to this memorandum to reflect such revisions.

# **I. PERSONNEL AND INSTITUTIONS:**

Spokesman and

physicist in charge of beam tests: Edwin Norbeck, University of Iowa

Fermilab liaison: Erik Ramberg

The group members at present and others interested in the testbeam are:

1.1 Present at FermiLab: David Northacker

1.2 University of Iowa: E. Norbeck, Y. Onel, J. E. Olson, U. Akgun

**II. EXPERIMENTAL AREA, BEAMS AND SCHEDULE CONSIDERATIONS**

1.  LOCATION

    1.  The experiment is to take place in the MTest beam line and
        located in the area designated MT6-B3. In addition, the main
        control room to the west of the MTest line will be used to house
        electronics (one NIM bin, one CAMAC, our computer, and scope),
        and provide a small amount of work space (for 3 people). If at
        the time of an experiment MT6-B3 is not available, the
        experiment will be located in MT6-B1 with the possibility of
        locating the electronics in the alcove control room.

2.  BEAM

    1.  The tests will use slow resonantly-extracted, Main Injector
        proton beam focused onto the MTest target. The tests require a
        beam of untagged, charged protons of the maximum energy
        available, 120 GeV.

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    2.  Intensity: In the range of 1-10 KHz in an area of a square cm or
        so. With the current beam line design this is expected to
        require up to 2 x 10^11^ primary protons per second. It needs to
        be able to be steered into the middle of a 6 in diameter circle.

    3.  The tests may also require electrons of 8 or 16 GeV, with
        intensities of several hundred per spill.

3.  SETUP\
    The setup will be on a machinist\'s table with castors. The table,
    and everything on it, can be set up outside of the radiation area.
    An hour or so will be required to move the table into the radiation
    area and connect the signal and HV cables to the PMTs. The table,
    with everything connected, will be located next to the beam line so
    that it will not interfere with beam going further downstream. The
    table will be moved in front of the beam just before the beam is
    expected. Moving the table in or out of the beam line should require
    only a few minutes.

4.  SCHEDULE\
    The setup phase will require a few hours of beam to look at signals
    on the scope and make suitable adjustments to electronics and the
    data-taking program. If something needs to be rebuilt we will want
    to go away and come back another day. When everything is working
    properly, an hour or two of beam will provide ample data for a
    single configuration. A typical run will consist of a series of
    data-taking runs followed by short controlled accesses to modify the
    configuration.

# **III. RESPONSIBILITIES BY INSTITUTION - NON FERMILAB**

1.  The detectors and electronics will be brought from the U of Iowa.

2.  If ethylene glycol is to be used as a radiating material, then U. of
    Iowa will ensure that a spill control structure (e.g. a drip pan)
    will be installed and that proper disposal of the glycol will be
    made at the end of the test.

**IV. RESPONSIBILITIES BY INSTITUTION - FERMILAB**

## 4.1 Fermilab Accelerator Division:

1.  Use of MTest beam.

2.  Maintenance of all existing standard beam line elements (SWICs, loss
    monitors, etc) instrumentation, controls, clock distribution, and
    power supplies.

3.  Reasonable access to our equipment in the test beam.

4.  The test beam energy and beam line elements will be under the
    control of the BD Operations Department Main Control Room (MCR).

5.  Position and focus of the beam on the experimental devices under
    test will be under control of MCR. Control of secondary devices that
    provide these functions may be delegated to the experimenters as
    long as it does not violate the Shielding Assessment or provide
    potential for significant equipment damage.

6.  The integrated effect of running this and other SY120 beams will not
    reduce the antiproton stacking rate or protons on target for the
    neutrino program by more than 5% globally, with the details of
    scheduling to be worked out between the experimenters and the Office
    of Program Planning.

4.1.S Summary of Beam Division costs:

Type of Funds Equipment Operating Personnel

(person-weeks)

Total new items \$0.0K \$0K 0.0

## 4.2 Fermilab Particle Physics Division 

1.  The test-beam efforts in this MOU will make use of the Meson Test
    Beam Facility. Requirements for the beam and user facilities are
    given in Section 2. The Fermilab Particle Physics Division will be
    responsible for coordinating overall activities in the MTest
    beam-line, including use of the user beam-line controls, readout of
    the beam-line detectors, and MTest gateway computer. (.2 person
    weeks)

2.  We require one NIM bin and one CAMAC crate for the experiment.

3.  We will need assistance in developing a beam trigger scintillator,
    using components already in existence at the test beam facility.

4.2.S Summary of Particle Physics Division costs:

Type of Funds Equipment Operating Personnel

(person-weeks)

Total new items \$0K \$0K .2

4.3 Fermilab Computing Division

1.  U of Iowa will supply all computer equipment.

4.4 Fermilab ES&H Section

1.  We will require assistance with safety reviews.

# 

# **V. Summary of Costs**

**Source of Funds \[\$K\] Equipment Operating Personnel**

(person-weeks)

Beams Division \$0K \$0K 0

Particle Physics Division 0 0 0.2

Computing Division 0 0 0

Totals Fermilab \$0K 0 0.2

# 

# **VI. SPECIAL CONSIDERATIONS**

6.1 The responsibilities of the spokesman of the U of Iowa group and the
procedures to be followed by experimenters are found in the Fermilab
publication \"Procedures for Experimenters\"
(<http://www.fnal.gov/directorate/documents/index.html>).. The Physicist
in charge agrees to those responsibilities and to follow the described
procedures.

6.2 To carry out the experiment a number of Environmental, Safety and
Health (ES&H) reviews are necessary. This includes creating a Partial
Operational Readiness Clearance document in conjunction with the
standing Particle Physics Division committee. The spokesman of the Iowa
group will follow those procedures in a timely manner, as well as any
other requirements put forth by the division's safety officer.

6.3 The spokesman of the Iowa group will ensure that at least one person
is present at the Meson Test Beam Facility whenever beam is delivered
and that this person is knowledgeable about the experiment's hazards.

6.4 All regulations concerning radioactive sources will be followed. No
radioactive sources will be carried onto the site or moved without the
approval of the Fermilab ES&H section.

6.5 All items in the Fermilab Policy on Computing will be followed by
the experimenters.

(<http://computing.fnal.gov/cd/policy/cpolicy.pdf>).

6.6 The spokesman of the Iowa group will undertake to ensure that no
PREP or computing equipment be transferred from the experiment to
another use except with the approval of and through the mechanism
provided by the Computing Division management. They also undertake to
ensure that no modifications of PREP equipment take place without the
knowledge and consent of the Computing Division management.

6.7 The Iowa group will be responsible for maintaining and repairing
both the electronics and the computing hardware supplied by them for the
experiment. Any items for which the experiment requests that Fermilab
performs maintenance and repair should appear explicitly in this
agreement.

6.8 At the completion of the experiment:

6.8.1 The spokesman of the Iowa group is responsible for the return of
all PREP equipment, computing equipment and non-PREP data acquisition
electronics. If the return is not completed after a period of one year
after the end of running the spokesman of the Iowa group will be
required to furnish, in writing, an explanation for any non-return.

6.8.2 The experimenters agree to remove their experimental equipment as
the Laboratory requests them to. They agree to remove it expeditiously
and in compliance with all ES&H requirements, including those related to
transportation. All the expenses and personnel for the removal will be
borne by the experimenters.

6.8.3 The experimenters will assist the Fermilab Divisions and Sections
with the disposition of any articles left in the offices they occupied,
including computer printout and magnetic tapes.

6.8.4 An experimenter will report on the test beam effort at a Fermilab
All Experimenters Meeting.

**SIGNATURES:**

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\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ 9/ 28/
2005

Edwin Norbeck, University of Iowa

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
/ / 2005

Jim Strait, Particle Physics Division

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
/ / 2005

Roger Dixon, Accelerator Division

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
/ / 2005

Robert Tschirhart, Computing Division

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
/ / 2005

William Griffing, ES&H Section

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
/ /2005

Hugh Montgomery, Associate Director, Fermilab

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
/ /2005

Steven Holmes, Associate Director, Fermilab

#  **Appendix I --** U of Iowa PPAC test **-- Equipment pool needs**

PREP Equipment Pool and MTBF items needed for Fermilab test beam on the
first day of setup:

[Quantity]{.underline} [Description]{.underline}

1 NIM crate, with cooling fans

1 CAMAC crate and power supply

2.  Scintillators to locate the beam

3.  PMT's

12 iron bricks 2x4x8 inches

**APPENDIX II - Hazard Identification Checklist**

Items for which there is anticipated need have been checked

<table style="width:100%;">
<colgroup>
<col style="width: 4%" />
<col style="width: 5%" />
<col style="width: 2%" />
<col style="width: 20%" />
<col style="width: 4%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 17%" />
<col style="width: 5%" />
<col style="width: 28%" />
</colgroup>
<tbody>
<tr class="odd">
<td colspan="4"><strong>Cryogenics</strong></td>
<td colspan="4"><strong>Electrical Equipment</strong></td>
<td colspan="2"><p><strong>Hazardous/Toxic</strong></p>
<p><strong>Materials</strong></p></td>
</tr>
<tr class="even">
<td></td>
<td colspan="3">Beam line magnets</td>
<td></td>
<td colspan="3">Cryo/Electrical devices</td>
<td></td>
<td>List hazardous/toxic materials</td>
</tr>
<tr class="odd">
<td></td>
<td colspan="3">Analysis magnets</td>
<td></td>
<td colspan="3">Capacitor banks</td>
<td></td>
<td>planned for use in a beam line or experimental enclosure:</td>
</tr>
<tr class="even">
<td></td>
<td colspan="3">Target</td>
<td><strong>X</strong></td>
<td colspan="3">high voltage (1500V at 1.0mA max) (for PMTs)</td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="3">Bubble chamber</td>
<td></td>
<td colspan="3">exposed equipment over 50 V</td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td colspan="4"><strong>Pressure Vessels</strong></td>
<td colspan="4"><strong>Flammable Gases or Liquids</strong></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td colspan="3"></td>
<td>inside diameter</td>
<td colspan="2">Type:</td>
<td colspan="2"></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td colspan="3"></td>
<td>operating pressure</td>
<td colspan="2">Flow rate:</td>
<td colspan="2"></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td colspan="3"></td>
<td>window material</td>
<td colspan="2">Capacity:</td>
<td colspan="2"></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td colspan="3"></td>
<td>window thickness</td>
<td colspan="4"><strong>Radioactive Sources</strong></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td colspan="4"><strong>Vacuum Vessels</strong></td>
<td></td>
<td colspan="3">permanent installation</td>
<td colspan="2"><strong>Target Materials</strong></td>
</tr>
<tr class="even">
<td colspan="3"></td>
<td>inside diameter</td>
<td></td>
<td colspan="3">temporary use</td>
<td></td>
<td>Beryllium (Be)</td>
</tr>
<tr class="odd">
<td colspan="3"></td>
<td>operating pressure</td>
<td colspan="3">Type:</td>
<td></td>
<td></td>
<td>Lithium (Li)</td>
</tr>
<tr class="even">
<td colspan="3"></td>
<td>window material</td>
<td colspan="3">Strength:</td>
<td></td>
<td></td>
<td>Mercury (Hg)</td>
</tr>
<tr class="odd">
<td colspan="3"></td>
<td>window thickness</td>
<td colspan="4"><strong>Hazardous Chemicals</strong></td>
<td></td>
<td>Lead (Pb)</td>
</tr>
<tr class="even">
<td colspan="4"><strong>Lasers</strong></td>
<td></td>
<td colspan="3">Cyanide plating materials</td>
<td>X</td>
<td>Tungsten (W)</td>
</tr>
<tr class="odd">
<td></td>
<td colspan="3">Permanent installation</td>
<td></td>
<td colspan="3">Scintillation Oil</td>
<td></td>
<td>Uranium (U)</td>
</tr>
<tr class="even">
<td></td>
<td colspan="3">Temporary installation</td>
<td></td>
<td colspan="3">PCBs</td>
<td><strong>X</strong></td>
<td>Other : <strong>Iron (Fe), Ta Cu</strong></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="3">Calibration</td>
<td></td>
<td colspan="3">Methane</td>
<td colspan="2"><strong>Mechanical Structures</strong></td>
</tr>
<tr class="even">
<td></td>
<td colspan="3">Alignment</td>
<td></td>
<td colspan="3">TMAE</td>
<td></td>
<td>Lifting devices</td>
</tr>
<tr class="odd">
<td colspan="2">type:</td>
<td colspan="2"></td>
<td></td>
<td colspan="3">TEA</td>
<td></td>
<td>Motion controllers</td>
</tr>
<tr class="even">
<td colspan="2">Wattage:</td>
<td colspan="2"></td>
<td></td>
<td colspan="3">photographic developers</td>
<td></td>
<td>scaffolding/elevated platforms</td>
</tr>
<tr class="odd">
<td colspan="2">class:</td>
<td colspan="2"></td>
<td></td>
<td colspan="3">Other: Activated Water?</td>
<td></td>
<td>Others</td>
</tr>
</tbody>
</table>