Abstract
The linear transformer driver (LTD) is a new method for constructing high current, high-voltage pulsed accelerators. 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. Sandia National Laboratories are actively pursuing the development of a new class of accelerator based on the LTD technology. Presently, the high current LTD experimental research is concentrated on two aspects: first, to study the repetition rate capabilities, reliability, reproducibility of the output pulses, switch prefires, jitter, electrical power and energy efficiency, and lifetime measurements of the cavity active components; second, to study how a multicavity linear array performs in a voltage adder configuration relative to current transmission, energy and power addition, and wall plug to output pulse electrical efficiency. Here we report the repetition rate and lifetime studies performed in the Sandia High Current LTD Laboratory. We first utilized the prototype ∼0.4-MA, LTD I cavity which could be reliably operated up to ±90-kV capacitor charging. Later we obtained an improved 0.5-MA, LTD II version that can be operated at ±100kV maximum charging voltage. The experimental results presented here were obtained with both cavities and pertain to evaluating the maximum achievable repetition rate and LTD cavity performance. The voltage adder experiments with a series of double sized cavities (1 MA, ±100kV) will be reported in future publications.
| Original language | English |
|---|---|
| Article number | 050401 |
| Journal | Physical Review Special Topics - Accelerators and Beams |
| Volume | 12 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 14 May 2009 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Surfaces and Interfaces
- Nuclear and High Energy Physics
Cite this
High current, 0.5-MA, fast, 100-ns, linear transformer driver experiments. / Mazarakis, Michael G.; Fowler, William E.; Kim, Alexander A.; Sinebryukhov, Vadim A.; Rogowski, Sonrisa T.; Sharpe, Robin A.; McDaniel, Dillon H.; Olson, Craig L.; Porter, John L.; Struve, Kenneth W.; Stygar, William A.; Woodworth, Joseph R.
In: Physical Review Special Topics - Accelerators and Beams, Vol. 12, No. 5, 050401, 14.05.2009.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High current, 0.5-MA, fast, 100-ns, linear transformer driver experiments
AU - Mazarakis, Michael G.
AU - Fowler, William E.
AU - Kim, Alexander A.
AU - Sinebryukhov, Vadim A.
AU - Rogowski, Sonrisa T.
AU - Sharpe, Robin A.
AU - McDaniel, Dillon H.
AU - Olson, Craig L.
AU - Porter, John L.
AU - Struve, Kenneth W.
AU - Stygar, William A.
AU - Woodworth, Joseph R.
PY - 2009/5/14
Y1 - 2009/5/14
N2 - The linear transformer driver (LTD) is a new method for constructing high current, high-voltage pulsed accelerators. 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. Sandia National Laboratories are actively pursuing the development of a new class of accelerator based on the LTD technology. Presently, the high current LTD experimental research is concentrated on two aspects: first, to study the repetition rate capabilities, reliability, reproducibility of the output pulses, switch prefires, jitter, electrical power and energy efficiency, and lifetime measurements of the cavity active components; second, to study how a multicavity linear array performs in a voltage adder configuration relative to current transmission, energy and power addition, and wall plug to output pulse electrical efficiency. Here we report the repetition rate and lifetime studies performed in the Sandia High Current LTD Laboratory. We first utilized the prototype ∼0.4-MA, LTD I cavity which could be reliably operated up to ±90-kV capacitor charging. Later we obtained an improved 0.5-MA, LTD II version that can be operated at ±100kV maximum charging voltage. The experimental results presented here were obtained with both cavities and pertain to evaluating the maximum achievable repetition rate and LTD cavity performance. The voltage adder experiments with a series of double sized cavities (1 MA, ±100kV) will be reported in future publications.
AB - The linear transformer driver (LTD) is a new method for constructing high current, high-voltage pulsed accelerators. 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. Sandia National Laboratories are actively pursuing the development of a new class of accelerator based on the LTD technology. Presently, the high current LTD experimental research is concentrated on two aspects: first, to study the repetition rate capabilities, reliability, reproducibility of the output pulses, switch prefires, jitter, electrical power and energy efficiency, and lifetime measurements of the cavity active components; second, to study how a multicavity linear array performs in a voltage adder configuration relative to current transmission, energy and power addition, and wall plug to output pulse electrical efficiency. Here we report the repetition rate and lifetime studies performed in the Sandia High Current LTD Laboratory. We first utilized the prototype ∼0.4-MA, LTD I cavity which could be reliably operated up to ±90-kV capacitor charging. Later we obtained an improved 0.5-MA, LTD II version that can be operated at ±100kV maximum charging voltage. The experimental results presented here were obtained with both cavities and pertain to evaluating the maximum achievable repetition rate and LTD cavity performance. The voltage adder experiments with a series of double sized cavities (1 MA, ±100kV) will be reported in future publications.
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U2 - 10.1103/PhysRevSTAB.12.050401
DO - 10.1103/PhysRevSTAB.12.050401
M3 - Article
VL - 12
JO - Physical Review Special Topics - Accelerators and Beams
JF - Physical Review Special Topics - Accelerators and Beams
SN - 1098-4402
IS - 5
M1 - 050401
ER -