The UNICAT requirements given in this document are slightly different from those of APS, mainly with respect to dimensions and layout of the enclosure, rather than construction technique. It is therefore preferred that the vendors use the APS design as far as the requirements coincide with UNICAT's but, ultimately, it will be the vendor's choice and responsibility as to how to ensure that the hutches perform to all relevant safety and operational criteria. Furthermore, since any design for use at APS is subject to review for safety by APS before procurement, any deviation from the APS's design proposed by the vendor with respect to safety features, must be presented to APS and UNICAT for approval as part of the bid.

The vendor shall supply all labor, materials and equipment, together with the knowledge and experience required, to install hutches which are fit for use as radiation enclosures on the experimental hall floor of APS. This will include any modifications deemed necessary and acceptable to the APS facility, including floor preparation, hole drilling, etc.

The vendor's installation staff will need to have been trained under the APS's own safety guidelines before starting work. At all times the vendor's workers and subcontractors must comply with the working practices required by the Argonne National Lab, the APS, and the UNICAT.

The enclosures are to be installed on the APS Experiment Hall in Sector 34 on the Insertion Device Radiation Port. 34-ID-A shares walls with an existing structure, while the positions of 34-ID-B through 34-ID-E are specified as a beam centerline position at a distance from the ratchet wall egress point. It is likely that installation will be required as soon as practicable.

Any conflicts between the requirements set forth herein and those of any other applicable document must be brought to the attention of UNICAT prior to any related action on the part of the vendor. This document modifies but does not replace the specification requirements set forth by APS for radiation enclosures.

The hutches are to include all internal wiring and piping systems relevant to the functioning of the hutches as safety enclosures. This includes items pertaining to operator safety and protection of equipment from damage. All systems are to be fail safe. All utility systems should be sized according to their function and are to terminate in standard connections on the roof or wall of the hutch ready for connection to APS utilities by other contractors.

The vendor shall supply UNICAT with copies of all mechanical, electrical and control system assembly drawings, detail drawings and parts lists required for UNICAT's own use in operation and maintenance of the hutches and for interfacing them with other equipment (internally and externally). They shall also supply operations manuals, guarantees and technical/purchasing specifications for all items including second-source items.

The vendors shall be responsible for seeing that the finished hutches are tested, in position on the experimental hall floor to the satisfaction of APS and UNICAT personnel attending. They should correct any defects as necessary.

The vendors shall provide a suitable demonstration of the functioning of all other systems and features described in this specification and correct any defects. Temporary connection to APS utilities may be required.

The vendor shall ensure that the design, manufacture and installation of the hutches is such that the equivalent lead thickness protection, as given in the Specific Requirements in section 4.4, is afforded at all positions and directions. This includes all the joints and boundaries of the hutches and at all penetrations and features.

The vendors must document that the structure has been accepted against this specification by a certified structural engineer.

The hutches must be built as self-supporting structures which have sufficient in-built safety factors to withstand:

a. self-weight

b. a 2000 lb. capacity manual bridge hoist system (see section 3.4)

c. five 1 foot wide shelves all round, each supporting 200 lbs.

d. 40 lb. live weight roof loading / sq. ft.

e. 100 lb. dead weight roof loading / sq. ft.

f. an installation crew of 2 persons walking without the use of crawling boards.

All panels should be a steel-lead-steel sandwich. Steel thickness should be sufficient to constrain lead over extended time and to add necessary rigidity.

Areas of lead should not be exposed at the surface anywhere on the entire structure (prior to painting).

Interior wall surfaces which are not doors or apertures should have a vertical Unistrut lattice, flush with the inside surface of the panel surrounds, at 0.3m spacing (approximately) for fixing of shelves and ancillary equipment by the users up to approximately 3 m (or 10ft) high.

All structural parts are to be painted white or blue, in a durable fashion, leaving no exposed metal.

Manual doors must be operable by one user and securable by a latch. Powered doors must have suitable safety interlocks and manual override systems to allow safe operation in all circumstances, including utility failures. Each door must be fitted with magnetic locks and redundant switches to detect the door position. Elements of this personnel safety feature must be approved by the APS. Door troughs are required to block all lines of sight below each door. Door stops for full open and for full closed positions must be provided.

Further requirements for doors on each enclosure are specific to each hutch, and are further specified in section 4.0.

Each enclosure shall be supplied with utility power (120/208 VAC) rated for 100 amp service. In addition, clean power (120 VAC) rated for 60 amp service shall be supplied to 34-ID-C, 34-ID-E, and to several outlets external to 34-ID-B through 34-ID-E. Main power disconnects for each clean and utility power will be located on the outside wall of each enclosure.

Power distribution panels for 34-ID-A, 34-ID-C and 34-ID-E shall be located inside these enclosures, and are to be sized to contain at least 36 circuits for utility power. 34-ID-C and 34-ID-E will also include at least 24 circuits for clean power.

Utility power for 34-ID-B, 34-ID-D and outlets external to 34-ID-B through 34-ID-E will be distributed from a panel located on the exterior of 34-ID-C, which will be sized to contain at least 48 circuits for utility power. A clean power distribution panel for outlets external to 34-ID-B through 34-ID-E will be located on the exterior of 34-ID-C.

Ground fault circuit protection shall be provided for all distributed power. All installation must be consistent with the National Electric Code, and any additional requirements imposed by the US DOE or the Argonne National Laboratory.

Vertically mounted electrical outlet strips are to be provided at locations indicated in figures 1-5. Unless otherwise noted, each clean power outlet strip shall have four 120 V duplex outlets and each utility outlet strip shall have four 120 V duplex outlets and one 3 phase outlet, all rated for 20 Amps. Unless otherwise noted, strips should be mounted not less than 1’ from the floor and not more than 6’ from the floor. A summary of required outlets is provided in table 1.

The vendor (or subcontractor) will be expected to attach hutch electrical wiring to the APS mains located on column #167 at the perimeter of the experimental floor (shown in Fig. 8). A bridge will be required to carry the electrical conduit from the outer wall of the experimental area to the beamline. The approximate position of this span is given in figure 8. A support column must be placed in the middle of the span to limit the unsupported length of conduit to 10’. The column will be approximately 11 feet tall and constructed of 6" I-beam, as shown in figure 10. One clean power outlet strip, which will include 4 duplex 120V outlets and one 3 phase outlet, will be mounted on this column.

An open, ‘ladder style’ cable tray for non-utility wiring should be installed around the inside perimeter of each hutch, at a height of 9'. A 6" wide tray is required for 34-ID-A, 34-ID-B and 34-ID-D, and a 12" wide tray is required for 34-ID-C and 34-ID-E. The cable tray is to be divided to separate low voltage and high voltage cables.

A 12" open cable tray is also required external to the hutches, running at a height of approximately 10’ from the floor along the front (door side) of the hutches from 34-ID-A to 34-ID-E as shown in figure 8. This cable tray should also be divided to separate low voltage and high voltage cables. In the space between 34-ID-A and 34-ID-B, the cable tray, and all other wiring, must keep clear of the area reserved for future expansion.

Two support columns (see figure 10) are required between 34-ID-A and 34-ID-B to limit the span of unsupported cable tray to less than 10'. These columns must also avoid the exclusion area in figure 8.

A manually operated hoist system and hook of 2000 lb capacity should be provided in 34-ID-C and 34-ID-E, which is capable of being used vertically above at least the floor area shown in figures 6 and 7. The hoist runways should be leveled in both planes. Mechanical overload protection should be provided. End stops should be fitted as appropriate.

The hook working height should range up to at least 3.0 m above floor level in 34-ID-C and

2.5 m above floor height in 34-ID-E and should lower to floor level with at least 0.5 m of slack.

To accommodate piped utilities, a labyrinth shall be provided on the roof of each enclosure. Through each utility labyrinth will pass four lines of 1" stainless steel tubing (insulated) for water and 1/2" copper tubing for compressed air. Each will be internally terminated with stainless steel shut-off ball valves with radiation resistant construction.

Each enclosure is to have labyrinths on roof panels as indicated in figures 1-5. The vendor may use one roof labyrinth for PSS conduit, one labyrinth for ventilation, and one roof labyrinth for electrical utility conduit. The others are intended for user-supplied utilities or wiring.

A special labyrinth dedicated to a liquid nitrogen (LN₂) transfer line is required on the roof of each hutch. It must pass a 1.62" diameter flexible hose into the hutch with a minimum centerline bend radius of 8 inches. The hose must descend at a rate of at least 0.25" per linear foot. The labyrinth must open to allow for the installation of the hose with straight rigid connectors 24" long at each end. Approximate positions for planned LN₂ source and use points for 34-ID-A are included as references in figure 1. A suggested design for the labyrinth is shown in figure 9.

Roof mounted exhaust fans or blowers shall be provided for each enclosure. These are to provide at least 1000 cfm for each enclosure. Each shall be equipped with variable speed control permitting convenient adjustment from 0% (off) to 100%. Blowers may use one roof labyrinth of each hutch as noted in figures 1-5.

A toxic gas ventilation feedthrough is required on the roof of 34-ID-C and 34-ID-E at the positions shown in figures 3 and 5. These ducts should terminate with standard flanges 150mm below the inside of the roof and 150mm above any external structure. The duct walls must have a lead equivalence of 12mm. A previously used design is given for reference in figure 11.

Holes of 76.2 mm diameter should be provided for optical surveying purposes. Position of the hole is 1959 mm from the floor and 381mm to the outside of beam centerline (to the right looking at the source).

Vertical Unistrut strips shall be installed on outside wall panels with a spacing of 1m. These strips should run from 1’ above the floor to a height of 9’. Near the top of each enclosure, two Unistrut strips are required every meter from a height of 9’ to the top of the enclosure. These are intended to support utility installations that are beyond the scope of this specification.

At positions indicated in figures 1-5, it is required that beam transport pipe will pass through the hutch walls. The beampipe centerline will be at 1.4 m from floor level, and wall penetrations must be designed so that a standard flange termination of each beampipe section can easily be passed through, prior to the assembly of sealing components (guillotine) around the pipe. The flange sizes which will pass through hutch walls are shown in table 2. All sealing components should be provided by the vendor, so that users may install beam transport pipe at a later date. Reference values for beampipe diameters are listed in table 3. The exact diameter of the beampipe will be provided at installation time. An eyebolt or other standard rigging feature must be provided at high level above each guillotine to permit safe installation after the beampipe and other beamline equipment are installed. The beam transport pipe weight will be supported externally.

To shield experimental equipment from external electromagnetic interference, electrical continuity must exist between all panels of each hutch.

Windows of good optical transmission quality should be provided for observation of experiments by the users. The heights of the window centers and approximate positions of the windows are indicated in figures 2, 3 and 5.

The lead equivalent for windows in 34-ID-B and 34-ID-E will be 19mm. The windows in 34-ID-C will require an equivalent of 10mm of lead (monochromatic/pink beam compatible).

Approximate positions of other items specified in section 3 are shown in Figure 1.

A single fully pneumatically operated door, with a 2.0 m wide and 2.45 m (8’) high clear open aperture is required. The doorway aperture is between approx. 7.5 and 9.5 m from the storage ring shield wall as shown in figure 1.

Approximate positions of other items specified in section 3 are shown in figure 2.

One door, of open aperture 1.5 m wide and 2.45 m (8’) high is required as indicated. The door is to be pneumatically operated.

Approximate positions of other items specified in section 3 are shown in figure 3.

One door of opening 2.0 m wide and 2.45 m (8’) high is required as indicated. The aperture of this door is between 0.5 and 2.5 m from the upstream wall of 34-ID-C. This door is to be pneumatically operated for the first 1m of its travel with a release for manual operation for the second meter of travel.

Approximate positions of other items specified in section 3 are shown in figure 4.

One door, of open aperture 1.0 m wide and 2.45 m (8’) high is required as indicated. The door is to be pneumatically operated.

Approximate positions of other items specified in section 3 are shown in figure 5.

One door of opening 2.0 m wide and 2.45 m (8’) high is required as indicated. The aperture of this door is between 2.0 and 4.0 m from the upstream wall of 34-ID-E. This door is to be pneumatically operated for the first 1.0 m of its travel with a release for manual operation for the second meter of travel.

The following are minimum values (in mm) for each hutch in all directions:

 Figures