1. System overview:

This document summarizes essential details for materials, setup, and operation. This is for transcription, archival, and research purposes only. It is based on an old patent and is not intended as a finished product. Operating conditions described require specialized handling and safety precautions, and the descriptions outlined here do not constitute a recommendation or endorsement to build or operate the device. Attempts to replicate or build upon these models are entirely at your own risk.

Source patent:

• Shoulders, Kenneth R. U.S. Patent No. 5,123,039. Issued June 16, 1992.
• Image: Figures 31 and 32
• Text: FROM Column 29 Line 22 UNTIL Column 30 Line 44

1.1. Purpose

Basic Function:
Splitter 2 is another passive EV splitting junction in an RC guide. It takes an EV stream going through an RC guide channel and splits off a portion of the EVs into a side channel.

Core Behavior:
Unlike splitter 1, this splitter design shows a guide channel with a more limited bandwidth of EV intensity, namely a square EV guiding groove of 30 micrometers across instead of the groove in splitter 1 which was a 45 degree groove with essentially unlimited headspace. The EV stream going through this guide groove gets a portion split off into the secondary, smaller guide groove. The size of this guide groove determines the maximum EV size/intensity that can propagate through it.

Scale & Format:
The secondary channel is taken to be 20 micrometers in width, and the rest of the measurements are based on this. This results in a tiny device of only ~0.1mm thick.

1.2. Components

Diagram(s):

Parts list:

Notes: Likely constructed using laminar or lithographic techniques. Mirroring RC guide 1, the cover plate is likely coated with a charge dissipating layer such as doped alumina.

2. Device materials and environment

2.1. Materials

All dielectrics given in the description of this object are Aluminum oxide, also known as Alumina.

The only conductor described in the object is the fired-on silver paste for the counterelectrode.

2.2. Operating Conditions

Electrical:

• With its 45 degree groove, the guide is able to accomodate various EV sizes and thus EV emission strengths and voltages.
• If a secondary groove of 1 micrometer or slightly more is used, a single EV bead may be extracted from the EV emission.

Environment:

• Similar 10^-3 Torr Xe conditions as other devices are assumed.

2.3. Operation notes

Though the device is meant to separate or shave off EVs from a passing EV, if the channel is wide enough it may guide the entire EV passing through the primary guide into the secondary channel. If the channel size is enough to ordinarily accommodate an EV of a particular size, the continued primary guide channel may still be a more attractive pathway for a portion of the EV cluster to follow, rather than the entire cluster entering the secondary guide channel.

If more than a single EV bead is desired to be split/shaved off of a larger EV cluster, i.e., a ~10 bead ring is desired, a 20 micrometer secondary channel would be needed to accommodate it, and an excessive EV cluster should travel through the primary channel for it to be split off of. If only one 12-bead EV ring travels through the primary guide channel at a time and comes across this split, it could very well split into two 6-membered rings instead of the desired 10-membered ring. Details on these dynamics are not yet clear.

3. Additional information

3.1. Additional information

The secondary guide channel must be of an appropriate size to "shave off" only the desired amount of EVs. This is not only a function of channel size, but also of dielectric strength of the plates, as well as the composition and strength of the vacuum.

Viable separation techniques vary wildly depending on secondary channel width, with the "1 micrometer for a single EV bead" being practically impossible cut mechanically. The 20 micrometer channel shown here could be cut using a 20 micrometer kerf diamond wafer dicing blade.

3.2. Attachments

• Splitter2.FCStd
• Splitter2_annotated.FCStd
• Splitter2.stl
• Images of model