STATEMENT OF WORK.pdf

STATEMENT OF WORK

Power Supplies for New Electron Beam Ion Trap July 28th, 2022

PR: 4200811055

Background The Athena X‐IFU calibration team requires an electron beam ion trap (EBIT) to perform detector calibration. The EBIT breeds and excites highly charged ions that in turn emit the spectral lines needed for calibration. The trapping potential, electron beam energy, and beam current are determined via High Voltage power amplifiers with specific performance requirements. A set of electrodes (drift tubes) form the electrostatic trap and determine the electron beam energy. The common HV potential of the drift tubes, translating to the beam energy, is biased with a 0‐30 kV power supply. The differential trapping potential of the drift tubes is achieved with 0‐1 kV power supplies floating on this common base potential. The electron beam is emitted from an electron gun whose anode accelerates the electrons away from the gun. The anode potential determines the electron beam current, biased with a 0‐10k V power supply. Efficient operation of the EBIT and ensuring maximum flux in the desired spectral lines require high beam currents with minimal beam instabilities and the ability to change the associated HV potentials rapidly. Therefore, HV power amplifiers are needed with high DC stability, precision, and low‐noise operation that also provide high slew rates without losing accuracy in their output. Only the Trek power amplifier series fulfill all these requirements. In addition, they are the only power supplies that feature a potentiometer for dynamic adjustment that allows to optimize the AC response for various load parameters – important to tune the amplifier to the specific loads associated with the EBIT assembly.

Scope The Government expects to take delivery of the power supplies that fulfills the specifications listed below.

Requirements:

We need to purchase five power supplies that meet our project requirements.

We require:

1) A MODEL 10/10B-HS-L-CE +/-10KV AMPLIFIER power supply with the following requirements:

(a) DC-stable, high-speed, high-voltage power amplifier that provides precise control of output voltages.

(b) It features an all-solid-state design, high slew rate, wide bandwidth, and low-noise operation.

(c) Output Voltage: 0 to ±10 kV DC or Peak AC

(d) Output Current: 0 to ±10 mA DC or 40 mA peak AC for 1 ms

(e) Slew Rate: Greater than 700 V/µs

(f) Large Signal Bandwidth: DC to greater than 19.5 kHz (-3dB)

(g) Gain: 1000 V/V fixed

2) Three MODEL 601C-1-L-SHV SINGLE CHANNEL AMPLIFIERS with the following requirements:

(a) Output Voltage Ranges 0 to ±500 V, 0 to -1 kV, 0 to +1 kV DC or peak AC

(b) Output Current Ranges 0 to ±10 mA DC, 0 to ±20 mA peak AC

(c) Gain: 100 V/V (a gain of 50 V/V is available for the ±500 V range only)

(d) Slew Rate: Greater than 50 V/μs (10% to 90%, typical)

(e) Large Signal Bandwidth: DC to greater than 8 kHz (1% distortion)

3) One MODEL 30/20A-L +/-30KV@+/-20mA HV AMP with the following requirements:

(a) Output Voltage Range: 0 to ±30 kV DC or peak AC

(b) Output Current Range 0 to ±20 mA DC or peak AC

(c) DC Voltage Gain Better than 0.1% of full scale

(d) Slew Rate Greater than 550 V/µs

(e) Large Signal Bandwidth (2% distortion) DC to greater than 2.5 kHz

Deliverables or Delivery Schedule

We require the following five power supplies:

1. Trek Power supply with product number TK-12563LR MODEL 10/10B-HS-L-CE +/- 10KV AMPLIFIER, quantity=1.

2. Trek Power supply with product number TK-12254L MODEL 601C-1-L- SHV SNGL CHAN AMP, quantity=3.

3. Trek Power supply with product number TK-12447L MODEL 30/20A-L +/- 30KV@+/-20mA HV AMP, quantity=1.

Exclusions: None.

Delivery Schedule:

o 32 weeks ARO, if possible given supply chain issues.

Acceptance testing: None.

Government-Furnished Equipment and Government-Furnished Information

None.

Place of Performance

The chosen vendor will acquire and sell this cryocooler from their own location.

Period of Performance

10 months