SOLICITATION NOTICE
36 -- Linear Transformer Driver Cavities in Voltage Adder Cofiguration
- Notice Date
- 8/20/2007
- Notice Type
- Solicitation Notice
- NAICS
- 335311
— Power, Distribution, and Specialty Transformer Manufacturing
- Contracting Office
- Department of Energy, Sandia Corp. (DOE Contractor), Sandia National Laboratories, PO Box 5800 MS: 0115, Albuquerque, NM, 87185, UNITED STATES
- ZIP Code
- 00000
- Solicitation Number
- Reference-Number-SNL-LTD820
- Response Due
- 8/30/2007
- Description
- NOTICE: All RESPONSES MUST BE SUBMITTED BY EMAIL TO MR. GIL MORALES, SANDIA CONTRACTING REPRESENTATIVE; gemoral@sandia.gov. DO NOT SEND ANY RESPONSES TO POSTING AGENT DONALD ROSEBOROUGH. SOW for 6 LTD Cavities and One Voltage Adder Under its Contract with the United States Department of Energy (DOE) and the National Nuclear Security Administration (NNSA), Sandia National Laboratories intends to purchase 6 LTD (Linear Transformer Driver) cavities in a voltage adder configuration. The LTD technology is a new method for constructing high-current, high-voltage pulsers. The salient feature of the approach is switching and inductively adding the pulses at low voltage straight out of the capacitors through low inductance transfer and soft iron core isolation. High currents can be achieved by feeding each soft iron core with many low inductance and capacitance capacitors and switches connected in parallel in a circular array. High voltage is obtained by inductively adding many LTD cavities in series in an inductive voltage adder configuration. An inductive voltage adder is a structure that inductively adds the voltage pulses of many LTD cavities stacked together in a linear array Each LTD cavity should have as output an electrical pulse of 100-kV peak voltage and 1-MA peak current when applied to 0.1-Ohm resistive load. The full width at half maximum of the pulse (FWHM) must be 100ns. The LTD cavities must be cylindrical doughnut shaped with approximate dimension as follows: 3-m diameter, 20 cm height with an inner coaxial cylindrical opening of ~1.8 ?m in diameter. The cavities should look like a giant pill-box with a cylindrical aperture in the middle. They should be vacuum tight and have a plastic insulator in the middle plane capable of holding the 100-kV without arcing. Each LTD cavity will be inductively isolated, and at all times the outside cavity surfaces should be at ground potential. The cavity walls must be made out of steel and be strong enough to withstand the weight of each entire cavity positioned either horizontally or vertically. They should have on the outside cylindrical surface fixtures for lifting them and also small whiles to install them in a rail system half way above the axis of the cavities. The 6 cavities shall be stackable with ?o? rings so the center cylindrical openings (holes) form a vacuum tight inner cylinder which will serve as the anode electrode of a 600-kV inductive voltage adder. The common bore of the 6 cavities will form the anode electrode of the voltage adder. Nothing should be added onto the two parallel outside flat surfaces of the cavities, so that when the six of them are stacked together in series, the total voltage adder length must not be longer than 1.25m. A cylinder of diameter approx 1.6m and length of 1.5 m should be built to serve as the cathode electrode of the voltage adder. An electron vacuum diode must be designed, built, and installed at the output end of the voltage adder with an impedance of 0.6 Ohms. The voltage adder assembly must be tested in operation before delivery. The operating output voltage of the voltage adder, between the cathode and anode electrode, should be 600-kV on a 0.6-Ohm diode and resistive loads. Each LTD cavity shall have an efficiency ,wall power to output power, better than 70%. A trigger pulse generator of 100-kV peak pulse voltage should also be built capable to trigger simultaneously the switches of all the 6 cavities. Because of critical mission needs the LTD cavities, the cathode electrode, the electron vacuum diode and resistive loads, and the trigger generator of the voltage adder shall be delivered no later than 10 months following the award of a contract. Mandatory Requirements for this Request for Interest 1. Firms shall provide verifiable evidence of their demonstrated past experience and ability to build five 1-MA, 100-kV LTD cavities. 2. Firms shall provide evidence of their demonstrated past experience and ability to test each one of the 1-MA, 100-kV LTD cavities to a 100kV charging and produce an output pulse of 1-MA, 100-kV on a matched load of 0.1 Ohm. 3. Firms shall provide evidence of their past experience and ability to configure at least five LTD cavities in a voltage adder configuration. 4. Firms shall provide evidence of their past experience and ability to test at least a 5-LTD cavity voltage adder with a diode load for at least 50 shots at capacitor charge voltage of 90kV. 5. Firms shall provide evidence of their past experience and ability to design and test a vacuum electron diode as a load for a five LTD cavity voltage adder. Respondents to this Request that do not provide verifiable and acceptable documentation thoroughly addressing each of the five (5) above mandatory requirements will not be given any further consideration by Sandia.
- Place of Performance
- Address: Sandia National Laboratories, Attention: Gil Morales, Mail Stop 1376, International Procurement Building, Rm.3123
- Zip Code: 87123
- Country: UNITED STATES
- Zip Code: 87123
- Record
- SN01378025-W 20070822/070820220328 (fbodaily.com)
- Source
-
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