**Hazard Analysis**

**Work Plan Title:** CDF / B0 LOW BETA SURVEY (Collision Hall & Tunnel)

**Date:** 30 July 2007

Amended: 14 November 2007

**Prepared By:** Gary W. Crutcher / Alignment Metrology Group

**Reviewed By:(optional)**

**Approved By:** Gary H. Coppola

**Description of work:** As-found / As-set alignment surveys of low beta
magnets and separators either side of CDF Collision Hall

**Personal Protective Equipment:** (Check protective equipment required
for the job.)

□ Safety glasses □ Side shields □ Chemical splash goggles

**X** Hearing Protection **X** Hard Hats

□ 3.0 Braising goggles □ Impact goggles

□ Face shield □ Rubber apron

□ Leather gloves □ Hot/Cold thermal protective gloves

□ Chemical resistant gloves (specify type): □ Respirators

□ Other required PPE (specify): **X** Fall protection equipment
(specify):

Harnesses and retractable lanyards

**Equipment required for the job:**

This equipment list is for the Q2, Q3, and Q4 alignments:

3 each Brunson 76 Alignment scopes, 4 each N3 Precision Level, 2 each
stick-mic kit, 2 each Dijak Bolt Kits, 1 each 6 foot Starrett scale, 3
each trivets with 4 way heads, 3 each short tripods, 1 each regular wood
tripod, 1 each laptop computer with excel spreadsheets for (Q2 thruQ4)
low beta quads and Separators, recent copy of AMG data base vertical
control, Lighting (i.e. 4 foot fluorescent light, and small hand
lanterns.

This equipment list is for the Q1, Q5, and Separator alignments:

1 each Brunson 76 alignment scope, 1 each Brunson instrument stand, 1 N3
precision level, 1 regular wood tripod, 1 stick-mic kit, 1 Laptop
computer with excel spreadsheets for the Q1 and Q5, recent copy of the
AMG data base vertical control.

**Work Plan History Information:** **Includes "A" and "B" sides of CDF**

The first portion herein is for the alignment of a triplet (Q2 thru Q4
located either side of the CDF Collision Hall, Q3&Q4 are completely
inside CDF, Q2 only partially penetrates the shielding walls). It is
best to only perform alignment work on one triplet at a time. [Six
personnel needed minimally for the alignment of a triplet.]{.underline}

Prior to starting any work the survey ports must be unlocked, the
poly-bead bags and **the loose beads removed (loose beads are a slip /
fall hazard),** the fiducials uncovered, and the steel shielding stacked
out of the way for the instrumentation setup. Also, in the Collision
Hall, scaffolding with handrails must be setup, man-lifts available, and
ladders with tie offs, swivel hoist rings for retractable lanyards
installed on I.M.U.

**"A" side as founds and alignment:**

**AQ2** setup requires two Brunson 76 alignment scopes, two trivets for
the 76s, and one N3 level on a short tripod. **The downstream end of the
Q2 requires someone to crawl into a small opening in the concrete
shielding blocks to access the fiducials and the vertical, and
horizontal adjustments located on the bottom side of the Q2. There is
only enough room for one person along each side of the magnet meaning a
third person should remain outside of the crawl space to monitor those
inside.** Access to the Q2 is from the Tevatron tunnel only.

The control scope is bucked in on a parallel line to the Murphy Line
using the following control points: 307149, 307021, and 307201, all
located in the Tevatron tunnel floor. A second alignment scope is setup
parallel and adjacent to the control scope along side the Q2 in a
position in which allows the observation of the beam-right fiducials,
(located between the beam-right magnet skin and the concrete block
shielding wall). The N3 is setup in a position to observe 2 vertical
control points and all the fiducials on the Q2. The procedure is to
as-found the Low Beta's position, and then make the appropriate moves.

**AQ3, AQ4** setup requires one Brunson 76 alignment scope, and three N3
levels. **This equipment is placed on the alcove using a lift, or for
lighter weight items pulled up by rope**. The alignment scope is bucked
in on a parallel line to the Murphy Line using a combination of 3 of the
5 following control points: 307149, 307021, 307201, 307202 or 307203.
The first three points listed above are inside the Tevatron tunnel, the
last two are in the CDF "A" side alcove. It is recommended to use two
points in the alcove and one point inside the Tevatron tunnel. Once a
line of sight (L.O.S.) is established, the L.O.S. must be extended
downstream into CDF. This is accomplished by double centering to a K&E
target on the upstream face of the I.M.U. The forward L.O.S. is the
split of the two readings. **No one is to access any of the fiducials or
adjustments located outside the alcove without the use of harnesses,
retractable lanyards, tied-off ladders, scaffolding, or lifts.** Three
N3 levels are required for the vertical portion due to the configuration
of steel shielding blocks and other obstructions.

One N3 is setup at the upstream end of the AQ3 looking through an
opening in the shielding that accesses the "A", "H" fiducials. The
second N3 level is setup to observe the downstream end of the AQ3 and
upstream end of the AQ4's fiducials. This setup is above the shielding
blocks. **This requires personnel to occupy the top of the shielding
steel with the use of a harness and retractable lanyard attached to the
ceiling.** The third N3 is setup looking beneath the longitudinal steel
rails and above the AQ4's downstream fiducials. **This requires
personnel to occupy the top of the electronics rack with the use of a
retractable lanyard and harness attached to the swivel hoist ring on the
I.M.U. To access the electronics rack the use of a tied off step ladder
or extension ladder is required. The top center of the rack is covered
by heavy screen mesh and should be reinforced to support one person.**

**THESE SETUPS MUST STAY IN PLACE UNTIL THE AQ2, AQ3, AND AQ4 ARE
ASFOUND AND ALIGNMENT IS COMPLETE. OUR EXPERIENCE HAS TAUGHT US THAT THE
MANOR IN WHICH THE Q2, Q3, AND Q4 ARE COUPLED TOGETHER (TIEBARS) MOVES
THE ADJACENT MAGNETS OUT OF POSITION DURING THE ALIGNMENT PROCESS. ONCE
ALL THE MAGNETS ARE ALIGNED FINAL AS SET OBSERVATIONS ARE TAKEN AND
RECORDED.**

**"B" side as founds and alignment:**

BQ2 setup requires two Brunson 76 alignment scopes, two trivets for the
76's, and one N3 level on a short tripod. **The upstream end of the BQ2
requires someone to crawl into a small opening in the concrete shielding
blocks to access the fiducials as well as the vertical and horizontal
adjustments located on the bottom of the BQ2. Insufficient room was left
in the crawl space to kneel down beside the magnet during the as found
and alignment process. Only enough room exists for one person to access
the magnet adjustments. That person will have to invert themselves over
the top of the magnet to access the adjustments located on the
underneath side. This condition is questionable from a safety standpoint
with regard to an emergency egress. The physical position required to
access the adjustments may compromise safety standards and places the
personnel making the adjustments in an awkward and possibly hazardous
situation if an emergency arises. A second person is needed to access
the fiducials. A third person should remain outside of the crawl space
to monitor those inside and take instrument readings. To compound this
problem there are numerous cryogenic pipes that present a freeze-burn
hazard. You must use a small shipping blanket laid over the cryogenic
piping for insulation and to help inhibit any freeze-burn to exposed
skin.** Note that the observation scope and N3 have to be setup between
the cryogenics piping on the beam left side of the tunnel. **(See
freeze-burn hazards, comments).**

The control scope is bucked in on a parallel line to the Murphy Line
using the following control points: 307206, 307207 in "B" side alcove,
307209, 307211, and B11 brass, located in the Tevatron Tunnel floor
unless otherwise noted. A second alignment scope is setup parallel and
adjacent to the control scope along side the upstream Separator in a
position that allows the observation of the beam-left fiducials (located
between the beam-left magnet skin and the concrete block shielding
wall). The N3 is setup in a position that allows observation of two
vertical control points and all the fiducials on the BQ2. The procedure
is to as-found the Low Beta's position then make the appropriate moves.

**BQ3 and BQ4** setup requires one Brunson 76 alignment scope, and three
N3 levels. **This equipment is placed on the alcove using a lift, or for
lighter weight items pulled up by rope**. **No one is to access any of
the fiducials or adjustments located outside the alcove without the use
of harnesses, retractable lanyards, tied-off ladders, scaffolding, or
lifts.** The alignment scope is bucked in on a parallel line to the
Murphy Line using a combination of 3 of the 5 following control points:
307206, 307207 in "B" side alcove, 307209, 307211 or B11 brass in
Tevatron tunnel. It is preferred to use two points in the alcove and one
point inside the Tevatron tunnel. Once a line of sight (L.O.S.) is
established, the L.O.S. must be extended upstream into CDF. This is
accomplished by double centering to a K&E target on the downstream face
of the I.M.U. Three N3s are required for the vertical portion due to the
configuration of steel shielding blocks and other obstructions. One N3
is setup at the down stream end of the BQ3 looking through an opening in
the shielding that accesses the "A", "H" fiducials. The second N3 is
setup to observe the upstream end of the BQ3 and downstream end of the
BQ4's fiducials. This setup is above the shielding blocks. **This
requires personnel to occupy the top of the shielding steel with the use
of a harness and retractable lanyard attached to the ceiling.** The
third N3 is setup looking beneath the longitudinal steel rails and above
the BQ4's upstream fiducials. **This requires personnel to occupy the
top of the electronics rack with the use of a retractable lanyard and
harness attached to the swivel hoist ring on the I.M.U. To access the
electronics rack the use of a tied off step ladder or extension ladder
is required. The top center of the rack is covered by heavy screen mesh
and should be reinforced to support one person.**

THESE SETUPS MUST STAY IN PLACE UNTIL THE Q2, Q3, AND Q4 ARE ASFOUND AND
ALIGNMENT IS COMPLETE. OUR EXPERIENCE HAS TAUGHT US THAT THE MANOR IN
WHICH THE Q2, Q3, AND Q4 ARE COUPLED TOGETHER (TIEBARS) MOVES THE
ADJACENT MAGNETS OUT OF POSITION DURING THE ALIGNMENT PROCESS. ONCE ALL
THE MAGNETS ARE ALIGNED FINAL AS SET OBSERVATIONS ARE TAKEN AND
RECORDED.

PREVIOUSLY SIGHTED PROBLEMS:

Broken adjustment bolts

Broken, missing, stripped, inaccessible or unknown lockdowns

Uncharged or inoperable lifts

Lack of proper scaffolding (partially corrected) / still have assembly
problems

Missing tie offs for lanyards (corrected)

Standing water in "B" side alcove

Ice balls covering the horizontal adjustment bolts on BQ2

# HAZARD ANALYSIS

+----+------------------+-------------------+--------------------------+
| ** | **Description**  | **Hazards**       | **Precautions / Safety   |
| St |                  |                   | Procedures**             |
| ep |                  |                   |                          |
| ** |                  |                   |                          |
+----+------------------+-------------------+--------------------------+
| *  | ##               | Collisions while  | Be aware of your         |
| *1 | # Lift Operation | maneuvering the   | surroundings (i.e. fans, |
| ** |                  | lift inside of    | electrical cabling,      |
|    |                  | CDF               | walls, magnet cradles,   |
|    |                  |                   | waterlines, and people)  |
|    |                  |                   |                          |
|    |                  |                   | **Must have had lift     |
|    |                  |                   | training to operate all  |
|    |                  |                   | lifts in CDF**           |
|    |                  |                   |                          |
|    |                  |                   | **Harnesses may be       |
|    |                  |                   | required for operation   |
|    |                  |                   | of some lifts.**         |
+----+------------------+-------------------+--------------------------+
| *  | **Fall           | Falling from      | Tie-off ladder or use a  |
| *2 | Protection**     | lifts, ladders,   | buddy to secure as       |
| ** |                  | scaffolding, or   | necessary.               |
|    |                  | the alcoves       |                          |
|    |                  | located either    | Use harness if necessary |
|    |                  | side of the       | or required              |
|    |                  | collision hall    |                          |
|    |                  |                   | Make sure that all       |
|    |                  |                   | guardrails are replaced  |
|    |                  |                   | after equipment is set   |
|    |                  |                   | onto alcoves.            |
|    |                  |                   |                          |
|    |                  |                   | Must wear a harness      |
|    |                  |                   | while accessing the      |
|    |                  |                   | magnets suspended in the |
|    |                  |                   | cradles, tie-offs are in |
|    |                  |                   | place and mounted in the |
|    |                  |                   | ceiling and on the       |
|    |                  |                   | I.M.U.                   |
|    |                  |                   |                          |
|    |                  |                   | Scaffolding requires     |
|    |                  |                   | handrails and proper     |
|    |                  |                   | access mode. (i.e.,      |
|    |                  |                   | ladder and or hatch)     |
+----+------------------+-------------------+--------------------------+
| *  | **Trip / Slip    | Tripping over     | Walk cautiously and be   |
| *3 | Hazards**        | equipment,        | aware of your            |
| ** |                  | extension cords,  | surroundings. Clear work |
|    |                  | or materials      | area of unnecessary      |
|    |                  | stored on floor,  | items as needed.         |
|    |                  | loose poly beads  |                          |
+----+------------------+-------------------+--------------------------+
| *  | **Loud Noises**  | Hearing damage    | Carry ear protection     |
| *4 |                  | caused by         | with you and use as      |
| ** |                  | excessive noise,  | needed.                  |
|    |                  | from machinery,   |                          |
|    |                  | water lines, and  |                          |
|    |                  | fans.             |                          |
+----+------------------+-------------------+--------------------------+
| *  | **Head           | Material falling  | Hard Hats to be worn     |
| *5 | Injuries**       |                   | whenever anyone is       |
| ** |                  |                   | working overhead, or any |
|    |                  |                   | cranes are in operation  |
|    |                  |                   | in the area.             |
|    |                  |                   |                          |
|    |                  |                   | CDF requires that        |
|    |                  |                   | everyone entering the    |
|    |                  |                   | collision hall should    |
|    |                  |                   | wear a hard hat.         |
+----+------------------+-------------------+--------------------------+
| *  | **Back / Body    | Back or body      | Use proper lifting       |
| *6 | Injury**         | injury caused     | techniques.              |
| ** |                  | from lifting too  |                          |
|    |                  | much weight or    | Do not place your body   |
|    |                  | improper lifting  | in awkward positions     |
|    |                  | technique         | while lifting.           |
|    |                  |                   |                          |
|    |                  |                   | Utilize a buddy while    |
|    |                  |                   | lifting excessive weight |
|    |                  |                   | or moving ladders or     |
|    |                  |                   | heavy equipment.         |
+----+------------------+-------------------+--------------------------+
| *  | **Temperature    | Exposure to hot / | Use shipping blankets to |
| *7 | Extremes**       | cold environments | cover up exposed         |
| ** |                  |                   | cryogenic piping to      |
|    |                  |                   | prevent freeze burn. "B" |
|    |                  |                   | side of CDF (tunnel)     |
|    |                  |                   | requires one's body to   |
|    |                  |                   | be in very close         |
|    |                  |                   | proximity to the         |
|    |                  |                   | cryo-pipes.              |
+----+------------------+-------------------+--------------------------+
| *  |                  |                   |                          |
| *8 |                  |                   |                          |
| ** |                  |                   |                          |
+----+------------------+-------------------+--------------------------+
| *  |                  |                   |                          |
| *9 |                  |                   |                          |
| ** |                  |                   |                          |
+----+------------------+-------------------+--------------------------+
| ** |                  |                   |                          |
| 10 |                  |                   |                          |
| ** |                  |                   |                          |
+----+------------------+-------------------+--------------------------+

**(*Use additional pages as needed.)***

**My supervisor has reviewed this hazard analysis with me and I
understand the hazards and required precautionary actions. I will follow
the requirements of this hazard analysis or notify my supervisor if I am
unable to do so. I understand that there are Environmental, Safety and
Health Professionals on staff if I need further assistance or
clarification.**

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  **Name and ID (please         **Signature**                   **Date**
  print)**                                                      

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                
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