FINAL SOW Magnet Move.pdf

STATEMENT OF WORK

TITLE: Moving and recharging two solid-state NMR magnets

I. BACKGROUND INFORMATION

The Functional Polymers Group of the Materials Science and Engineering Division develops methods to spectroscopically characterize polymers that are used in technologically relevant devices such as fuel cells and water filtration membranes. Solid-state nuclear magnetic resonance (NMR) spectrometers are used to determine structures at the atomic level, and the Materials Science and Engineering Division owns two such spectrometers, one operating at 100 MHz and one at 300 MHz. These spectrometers will be moved to a newly renovated MML NMR Laboratory (NIST Gaithersburg campus, Polymer Building, Room B125). New consoles have been recently purchased for these two spectrometers. NIST will continue to use the two existing magnets, a Bruker 300 UltraShield (89 mm bore, p/n Z54957) for operation at 7.05 T to go with the 300 MHz solid-state

NMR, and an Oxford 89 mm bore (D20000 series, DLNOIII/65) for operation at 2.35 T to go with the 100 MHz

NMR. Both magnets shall be moved to the new laboratory.

II. REQUIREMENTS

The Contractor shall:

1. Service the Bruker 300 UltraShield magnet including

• discharging,

• relocating from B325 to B125 in Building 224, and

• energizing the magnet to 7.05 T after its relocation to 224/B125

2. Service the Oxford magnet including

• replacing the o-ring seals,

• relocating from the Building 224 loading dock to room B125, and

• energizing the magnet to 2.35 T after its relocation to 224/B125.

3. Provide a vacuum jacketed transfer line for liquid helium transfers for the Oxford magnet.

4. Be responsible for shipping all rigging and magnet energization equipment (such as the energization leads and power supplies) necessary for the magnet relocation and energization.

After charging, each magnet shall:

1. Exhibit a stable (<0.3 ppm/hour) magnetic field in the bore of the magnet. The 7.05 T Bruker 300

UltraShield shall create a magnetic field for NMR at 300 MHz, and the Oxford magnet shall create a magnetic field for NMR at 100 MHz.

2. Exhibit helium boil off at a rate of no greater than 0.4 L/day for the Bruker 300 UltraShield magnet, and 0.6 L/day for the Oxford magnet.

3. Exhibit field homogeneity to within 20 ppm of the mean value without the use of room temperature shims as measured on a sample of adamantane on any of the probes to the 300 MHz NMR spectrometer:

• 1.3 mm MAS probe (Bruker, p/n PH MAS DVT 300 W1 BL1.3 N-P/H)

• 4 mm double resonance MAS probe (PH MAS 300 WB BL4 WVT)

• 4 mm triple resonance MAS probe (Bruker, PH WB 73 MAS 4 BL CP Triple)

• 5 mm static wideline probe (Bruker, p/n PH WB 73A/BB SOL 5 BB HT)

• 5 mm single resonance CRAMPS probe (Doty Scientific Inc., p/n DSI-774)

• 7 mm double resonance MAS probe (Bruker, p/n MAS 300 WB BL7 WVT)

• 5 mm solutions probe (Bruker, p/n BBI)

• 10 mm solutions probe (Bruker, p/n BBO) or any of the probes to the 100 MHz NMR spectrometer

• 5 mm MAS probe (Doty, DSI-489)

• 7 mm MAS probe (Doty, DSI-289)

• 10 mm MAS probe (Doty-710)

Back up magnets:

The Government owns two additional magnets, a 7.05 T Oxford magnet (89 mm bore, DLNOIII/14/3) and a

2.35 T Nalorac magnet (125 mm bore). If for some reason the Oxford DLNOIII/65 or Bruker 300 UltraShield cannot fulfill the above requirements, the Government will consider the substituting either of these magnets in order to meet the requirements.

Installation:

The Contractor shall install the instrument in Building 224, Room B125 at NIST Gaithersburg, MD.

Installation will take place during normal business hours, between 7:00 am and 3:00 pm Eastern Time, Monday through Friday except Federal Holidays, and will be coordinated with the NIST Contracting Officers

Representative (COR). Installation is to occur within 60 days of award.

Training:

Include training at NIST for up to 2 NIST personnel covering normal operation, troubleshooting, and routine maintenance. Training will be provided during normal business hours, between 8:30am and 5:00pm Eastern

Time, Monday through Friday, except Federal Holidays, and will be coordinated with the NIST COR to ensure maximum availability of NIST personnel. Training is to occur within 10 days of installation. The training may be completed on-site at NIST immediately after installation and demonstration of specifications.

III. DELIVERABLES

Description Quantity Due Date

Discharge/move/recharge of 300 MHz solid-state NMR magnet

Once 60 days after award of this requirement.

Move/recharge of 100 MHz solid-state

NMR magnet

Once 60 days after award of this requirement.

Liquid helium transfer line for 100 MHz

NMR magnet

One (1) 60 days after award of this requirement

IV. ACCEPTANCE CRITERIA

After installation, the Contracting Officer’s Representative (COR) shall coordinate with the Contractor to test and demonstrate that all minimum required specifications have been met. The demonstration of specifications may occur during training. Final acceptance by the Government will be given after successful delivery, installation, training, and demonstration of instrumentation specifications, including the following acceptance tests:

1. On a 30 mg standard sample of adamantane a 13C NMR spectrum can be collected on the 300 MHz NMR spectrometer with a signal-to-noise ratio of 120:1 (39 ppm resonance) with 16 Hz baseline resolution when using the 1H-13C cross polarization sequence ( CB1 = 60 kHz, HB1

= 48 kHz, 6% 1H ramp) and 1H TPPM decoupling ( HB1 = 79 kHz) while magic angle spinning (12000 ± 1 Hz) with a 3 sec. repetition time when using our triple resonance MAS probe (Bruker, PH WB 73 MAS 4 BL CP Triple). Other relevant parameters are: 8 ms contact time, 2.95 s 1H /2 pulse at attenuation factor of 8.0, 20 ms dwell time, 4096 data points, 32 receiver gain.

2. On a 200 mg standard sample of adamantane a 13C NMR spectrum can be collected on the 100 MHz NMR spectrometer with a signal-to-noise ratio of 240:1 (39 ppm resonance) with 9 Hz baseline resolution when using the 1H-13C cross polarization sequence ( CB1 = 50 kHz, HB1

= 46 kHz) and 1H continuous wave decoupling ( HB1 = 78 kHz) while magic angle spinning (4000 ± 1 Hz) with a 3 sec. repetition time when using the 1H channel for 1H (100 MHz) excitation and either the X- or Y-channels for 13C (25 MHz) excitation in our double resonance MAS probe (Doty Scientific Inc., p/n DSI-427). Other relevant parameters are: 8 scans, 2 ms contact time, 3 s 1H /2 pulse, 100 s dwell time, 800 time domain data points..

V. GENERAL INFORMATION

Safety: The Contractor employee shall be responsible for knowing and complying with commercial installation safety prevention regulations. Such regulations include, but are not limited to, general safety, fire prevention, and waste disposal.

Security: NIST is a restricted campus. An identification badge is required for access for entry into buildings and also is shown to the armed Security Police when entering the campus.

Identification Badges: Contractor employees shall comply with NIST identification and access requirements.

The Contractor shall provide the name and citizenship information of employees for on-site visits to the NIST

COR prior to arrival. The COR will submit the name(s) and citizenship information to the NIST Office of

Security in order for a given Contractor employee to enter the NIST campus. The Contractor employee is responsible for absences due to missing or expired identification and access documents. Each Contractor employee shall wear a visible identification badge provided by the NIST Security Office.

Vehicle Registration: All Contractor employees must register their vehicles with the NIST Security Office to gain access to the campus. A valid driver’s license, Government-furnished civilian ID (which in most cases can be a valid driver's license), proof of insurance and current registration must be presented to the NIST Security

Office.