Pulse Sequence Control System Distributed pulse sequence control system with ethernet based digital transmitter and receiver system integrated by high reliability CAN controller network featuring:

• High speed Gigabit network connection
• Transmitter and receive channels can be extended to 3 channels
• CAN controller nodes can be expanded to more than 110 to accommodate multiple transmit/receive channels and gradient controllers with simple cables connections
• Modular design — convenient for maintenance and repair

Transmitter Specifications:

• Intermediate Frequency 922.5 MHz
• Event minimum and resolution 25 nsec
• Resolution 0.01 Hz
• Phase Resolution 0.02°
• Minimum Pulse Width 100 nsec
• Console pulse power 0 dBm
• Power resolution 0.01 dB
• Attenuation Range -40 to +63 dB
• Power Linearity 99.9 %
• Power Stability 0.3 dBc
• Transmit harmonic suppression > 50 dBc

Receiver Specifications:

• Dynamic Range ≥80 dB
• Sampling Rate 60 mega samples per second
• Programmable bandwidth 120 Hz to 2.5 MHz
  Digital Resolution 14 bit
• Gain Range -30 to 40dB
• Gain Resolution 1 dB

Three Channel RF Power Amplifier

• Maximum Duty Cycle 10 %
• Maximum Pulse Width 250 msec
• Deuterium Channel 30 to 120 MHz pulse power > 15 watts
• High Frequency Channel 180 to 600 MHz
• Maximum linear pulse power > 140 watts
• Maximum CW power 35 watts
• Maximum duty cycle 10%
• Maximum pulse width 200 msec
• Rise and fall times < 100 nsec and < 50 nsec, resp.
• Blanking time  < 2µsec
• Broad Band Power Amplifier 10 MHz to 410 MHz
• Maximum linear peak pulse power
• 10-100 MHz 200 watts
• 100-200 MHz 330 watts
• 280-410 MHz 100 watts
• Maximum CW power 30 watts
• Pulse rise and fall time 100 nsec and 50 nsec, resp.
• Blanking Time < 2µsec

Gradient Controller 3 channel integrated with pulse programmer with digital pre-emphasis.

• Peak Output Current ± 10 Amps
• Maximum duty cycle 10 %
• Max Pulse Width 150 msec
• Digital Resolution 16bit
• Load Capacity < 1.2 ohms < 15 µH
• Rise Times
• < 20 µsec 10 % to 90 %
• < 30 µsec 10 Amps
• Output linearity 99.9 %
• Frequency range < 20 kHz

Preamplifier True broadband transmit/receive switch technology w/additional receive modules; 7” color OLED monitor displays status and probe tuning curves and supports Smart Tuning and Matching (STM) probes.

• Insertion Loss < 1 dB
• Peak pulse power > 500 Watts
• Transmit/Receive Switching Time < 2 µsec; Isolation ≥ 40 dB
• Noise figure < 1.5 dB; gain > 32-45 dB; flatness < 1 dB

Room Temperature Shim System

• 40 channels; 1 Amp max current
• Temperature drift < 10 ppm per °C
• Digital resolution 16 bits

Temperature and Pneumatic Control

• Spinning Speed Range 10 to 40 Hz
• Rotational Stability ± 1 Hz
• Temperature Control Range -40 °C to +150 °C
• Temperature Stability ± 0.1 °C