Adelphi Technology, Inc: Glossary

At Adelphi, we build neutron generators, the work in our laboratory touches many disciplines and technologies such as nuclear physics, high speed electronics, gamma ray detection or a multitude of other things. A list of various acronyms that can be used in our work is given below.

• ADC - Analog to Digital Coverter
• API - Associated Particle Imaging
• BJT - Bipolar Junction Trasistor
• CONOPS CONcept of OPerationS
• Ce:LaBr3 - Lanthanum Bromide doped with Cerium: scintillation detector crystal
• COTS - Commercial Off The Shelf
• CW - Continuous Wave
• CWMD - Countering Weapons of Mass Destruction
• DARPA - Defense Advanced Research Projects Agency
• DTRA - Defense Threat Reduction Agency
• D-D / - DD Deuterium-Deuterium
• DDA / DDAA - Differential Die Away analysis (used for detecting SNM)
• DDT Differential Die-Away Technique
• DGNAA - Delayed Gamma Neutron Activation Analysis
• DHS - Department of Homeland Security
• D-T / DT - Deuterium-Tritium
• DTRA - Defense Threat Reduction Agency
• DoD - Department of Defense
• ECR - Electron Cyclotron Resonance (ion source)
• EMO - Emergency Machine Off
• FNR - Fast Neutron Radiography
• GEANT4 Geometry ANd Tracking
• HDPE - High Density Poly Ethylene
• HPGe - High Purity Germanium (high resolution gamma ray detector)
• HV - High Voltage
• HVPS - High Voltage Power Supply IC Integrated Circuit (i.e. “chips”)
• I2C - I-squared-C, Inter-Integrated Circuit
• IGES - Initial Graphics Exchange Specification, a 3D graphics file
• I.D. - Inside Diameter
• ICONS - Intense COmpact Neutron Source (the name of a DARPA project we participated in)
• keV - kilo electron Volts (a unit of energy), 1keV = 1,000 eV = 1.6021818×10^-16 J
• LaBr - Lanthanum Bromide (gamma ray detector)
• Linac - Linear Accelerator
• LNA - Low Noise Amplifier (RF)
• MCA - Multichannel analyzer
• MCNP - Monte Carlo Neural Particle (neutron transport code, https://mcnp.lanl.gov/)
• MCNPX - Visual editing variant of MCNP
• MeV - Mega electron Volts (a unit of energy), 1MeV = 1,000,000 eV = 1.60218×10^-13 J
• milli Rem /mRem - a unit of radiation dose https://en.wikipedia.org/wiki/Roentgen_equivalent_man
• MFC - Mass Flow Controller
• MOSFET - Metal Oxide Semiconductor Field Effect Transistor
• MTF - Modulation Transfer Function (using in imaging to measure resolution)
• NAA - Neutron Activation Analysis
• NaI - Sodium Iodide (gamma ray detector/scintillation crystal)
• NDT - Non Destructive Testing
• NEG - Non Evaporable Getter
• NIM - Nuclear instrumentation module
• IGBT - Insulated-Gate Bipolar Transistor
• n/s - Neutrons per second
• N-Type - An RF connector, also a dopant type for HPGe detectors
• O.D. - Outside Diameter
• OEM - Original Equipment Manufacturer
• PGNAA - Prompt Gamma Neutron Activation Analysis
• PMT - Photomultiplier Tube
• PPS - Personal Protection System
• RF - Radio Frequency (in this case 2.45 GHz also known as ‘microwaves’)
• RGA - Residual Gas Analyzer
• SCCM - Standard Cubic Centimeter per Minute (1 SCCM = 1 cm³/min at STP)
• SBIR - Small Business Innovative Research
• SCR - Silicon Controlled Rectifier
• SEE - Single Event Effects (a radiation damage term)
• SF6 - Sulfur Hexafluoride
• SiPM - Silicon PhotoMultiplier
• SMA - Subminiature Version A connector (a co-axial connector)
• SMB - Subminiature Version B connector (a co-axial connector)
• SNM - Special Nuclear Materials
• SPI - Serial Peripheral Interface
• STP - Standard Temperature and Pressure
• STEP - Step file (*.stp or *.step), a 3D graphics file format (ISO 10303-21)
• STTR - Small business Technology Transfer Research
• SWaP - Size Weight and Power
• TID - Total Ionizing Dose (a radiation damage term)
• TNR - Thermal Neutron Radiography
• TSSOP - Thin Shrink Small Outline Package (an Integrated Circuit)
• TTL - Transistor Transistor Logic ("high"=5V, "low"=0V)
• VAC - Volts, Alternating Current
• VBA - Visual Basic for Applications
• VCO - Voltage Controlled Oscillator (part of an RF source)
• VDC - Volts, Direct Current
• VGA - Variable Gain Amplifier (part of an RF source)

Government labs with which we have worked

• ARL - Airforce Research Laboratory
• NIST - National Institute of Standards and Technology
• NREL - National Renewable Energy Laboratory
• LANL - Los Alamos National Laboratory
• LBL - Lawrence Berkeley Laboratory
• LBNL - Lawrence Berkeley National Laboratory
• LLNL - Lawrence Livermore National Laboratory
• ORNL - Oakridge National Laboratory
• SLAC - Stanford Linear Accelerator Laboratory