Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p152
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 443451–446343

they can be a plug‑in module to the device or they can be an externally connected device.
3. A. 231. Neutron generator systems, including tubes, having both of the following characteristics:
a. Designed for operation without an external vacuum system; and
b. Having any of the following:
1.  Utilising electrostatic acceleration to induce a tritium‑deuterium nuclear reaction; or
2.  Utilising electrostatic acceleration to induce a deuterium‑deuterium nuclear reaction and capable of an output of 3 x 109 neutrons/s or greater.
3. A. 232. Multipoint initiation systems, other than those specified by 1A007, as follows:
N.B.: SEE ALSO MUNITIONS LIST.
N.B.: See 1A007.b. for detonators.
a. Not used;
b. Arrangements using single or multiple detonators designed to nearly simultaneously initiate an explosive surface over greater than 5,000 mm2 from a single firing signal with an initiation timing spread over the surface of less than 2.5 µs.
Note: 3A232 does not apply to detonators using only primary explosives, such as lead azide.
3. A. 233. Mass spectrometers, other than those specified by 0B002.g., capable of measuring ions of 230 u or greater and having a resolution of better than 2 parts in 230, as follows, and ion sources therefor:
a. Inductively coupled plasma mass spectrometers (ICP/MS);
b. Glow discharge mass spectrometers (GDMS);
c. Thermal ionisation mass spectrometers (TIMS);
d. Electron bombardment mass spectrometers having both of the following features:
1.  A molecular beam inlet system that injects a collimated beam of analyte molecules into a region of the ion source where the molecules are ionized by an electron beam; and
2.  One or more cold traps that can be cooled to a temperature of 193 K (‑80°C) or less in order to trap analyte molecules that are not ionized by the electron beam;
e. Not used.
f. Mass spectrometers equipped with a microfluorination ion source designed for actinides or actinide fluorides.
Technical Notes:
           1. Item 3A233.d. describes mass spectrometers that are typically used for isotopic analysis of UF6 gas samples.
           2.  Electron bombardment mass spectrometers in Item 3A233.d. are also known as electron impact mass spectrometers or electron ionization mass spectrometers.
           3. In item 3A233.d.2., a 'cold trap' is a device that traps gas molecules by condensing or freezing them on cold surfaces. For the purposes of this entry, a closed‑loop gaseous helium cryogenic vacuum pump is not a cold trap.
3. A. 235. Striplines to provide low inductance path to detonators with the following characteristics:
          a. Voltage rating greater than 2 kV; and
          b. Inductance of less than 20 nH.
3. A. 901 Complementary Metal Oxide Semiconductor (CMOS) integrated circuits, not specified by 3A001.a.2., designed to operate at an ambient temperature equal to or less (better) than 4.5 K (-268.65 °C).