https://edwards2.phy.ohio.edu/~wiki/handbook/ 2026-05-01T22:11:19-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/ https://edwards2.phy.ohio.edu/~wiki/handbook/lib/tpl/dokuwiki/images/favicon.ico text/html 2013-07-23T09:52:02-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:45r&rev=1374587522&do=diff Due to the amount of Tritium that exists in the 45R beam line, and a detectable release of this Tritium during pumping, the following procedure is used every time the beam line is shutdown for venting or regeneration: * Close gate valves and turn off ion gauges, glass tube and nude controlled by Fredericks Televac controller. text/html 2016-05-04T10:36:42-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:alarms&rev=1462372602&do=diff Shutdown Module: Located above beam current meters. This is the actual device that shuts down the accelerator, and sounds an alarm, when it receives a shutdown command from a connected device. There are two devices that provide a shutdown command to this module; the Radiation Monitor System and the E2 alarm panel when in “connect” mode. When a shutdown command is received this module: text/html 2012-11-27T08:57:45-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:alpha&rev=1354024665&do=diff Alpha Source Instructions Duoplasmatron Instructions Please study the diagram below. These instructions were developed by David Ingram, please e-mail any comments or questions about them to him, at ingram@ohio.edu. This page includes: Duoplasmatron cold start, warm start, start from standby; shutdown completely, shutdown for warm start, shutdown to standby; Trouble shooting; 3He operation. text/html 2022-06-08T09:05:43-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:alphatross&rev=1654693543&do=diff NEC Alphatross RF Source Instructions START UP In the Vault * Verify LE Extension Vacuum - indicated by Ion Gauge controller with orange displays on magnet. * Verify Source Vacuum - indicated Ion Gauge controller with blue displays in 19“ rack. text/html 2022-01-31T11:10:00-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:buncher&rev=1643645400&do=diff Buncher Setup and Use * Select the correct buncher tube configuration. Need some description of this, write later. * Switch operation - this is moved from the Alphatross setup page. * Set buncher tube selector switch to correct configuration for desired beam species. Only rotate the switch clockwise. This switch is a large high voltage rotary switch and the proper position aligns the position number in the center of the arrow marker The position between numbers fells like a detent but… text/html 2017-04-17T11:47:20-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:change&rev=1492444040&do=diff Changing Terminal Energy * Put the Faraday cups in. * Switch OVERVOLTAGE PROTECTION to DISABLE. * Switch the control mode to GVM. * Slowly turn the CONTROL GAIN to zero while watching the grid voltage. If the grid voltage rises above -5 volts, reduce the CHARGING VOLTAGE to keep the grid voltage less than -5 volts, then continue reducing the CONTROL GAIN to zero. text/html 2009-04-15T15:11:50-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:changeleg&rev=1239822710&do=diff Switching Extension Legs Switching Extension Legs * Run current to zero and turn power to quad(s) off if needed. * Turn power to leg selection panel on (white lights will come on) if not already on. * Push button to select leg. * Turn power off (interlock light for beam line will change to leg selected). text/html 2012-08-22T13:52:49-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:compliance&rev=1345657969&do=diff OAC 3701:1-66-17 3701:1-68-05 understanding and compliance statements February 2012 (A) OUAL understands that the Department considers us to be in compliance if we feel that we meet all requirements. 1. Operators will be trained to their level of intended use and will operate within their level of training. text/html 2012-06-05T15:09:17-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:console&rev=1338923357&do=diff Staffing the Control Console If the Accelerator is running (flashing red lights on) the Operator (Op1 or Op2) may leave the Control Room for up to 10 minutes by posting a conspicuous sign on the control console stating “Operator will Return in 10 Minutes text/html 2012-03-12T15:59:39-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:control_modules&rev=1331582379&do=diff TPS Controller (top) and Charging Controller (bottom) text/html 2012-03-14T16:30:35-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:cs_labeled&rev=1331757035&do=diff text/html 2012-02-15T10:44:16-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:cutaway&rev=1329320656&do=diff text/html 2012-06-12T15:59:58-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:drd&rev=1339531198&do=diff Operation of Ludlum Model 25 DRD On/Ack: Press On button for approximately 1 sec. to activate. Press On for approximately 5 sec. to deactivate, it will beep and the screen will go blank. Press On to silence during Alert/Alarm. In the event of a prolonged Alarm condition, the alarm will begin to sound again after 1 minute. text/html 2012-03-12T16:18:34-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:einzel&rev=1331583514&do=diff Einzel Lenses There is one tube type Einzel Lens in the lab. It is in the sputter source head and the voltage is controlled from the sputter source control panel. See the Wikipedia link below for a general description of Einzel Lenses: Einzel Lens - Wikipedia text/html 2019-10-14T09:23:47-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:facility&rev=1571059427&do=diff Facility Shutdown * Put in all cups * Shutdown the Accelerator * Shutdown the Source * Run all magnets down to zero (unless otherwise instructed, leave magnet power supplies on, but at zero) * Set all electrostatic devices to zero or neutral, and then turn off text/html 2016-05-04T11:51:27-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:fire&rev=1462377087&do=diff Actions if the building fire alarm activates: * The designated Accelerator Operator shall: * Check the annunciator panel for the location of the alarm (instructions on the panel below) * Put in all faraday cups and shut down the accelerator text/html 2012-03-12T16:30:18-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:grid&rev=1331584218&do=diff Gridded Lenses There are several Gridded Lenses in the lab. There is a Gridded Lens on each ion source. Both of these lenses are connected to the same power supply and it is called Lens B. The next Gridded Lens is after the Inflection Magnet and called Lens A. The controls for Lens A and Lens B are on the low energy side of the control console. A third Gridded Lens is located just inside the low energy tube of the accelerator. Its call the Gidded Volt Lens and the controls are just above … text/html 2012-02-15T10:43:35-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:hvsupplies&rev=1329320615&do=diff text/html 2012-03-21T11:01:32-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:integrator&rev=1332342092&do=diff Beam Current Integrator [Beam Current Integrator writeup by designer, Bob Young] ---------- * a. The digital display reads out the total integrated charge in Coulombs * Multiplier (including the decimal point). The pre-scaler value (h) is automatically included in the display by moving the decimal point in the display readout. For example, if the digital display reads 1234.56 and the range is 10^-6 the charge is 1234.56 uC. text/html 2012-03-05T13:18:48-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:interlock&rev=1330971528&do=diff Testing Policy & Interlock Rules * All safety and warning devices, including interlocks, shall be checked for proper operation at intervals not to exceed three months. Results of such tests shall be maintained in the Testing, Calibration, and Shutdown Book. text/html 2025-06-17T11:08:02-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:nmr&rev=1750172882&do=diff NMR Setup * Depress POWER switch if not illuminated. * After a 1 minute warm up period a horizontal line should appear on the oscilloscope face. * Note: The oscilloscope now used is located on the console under the BPM oscilloscope (up and left of the NMR). text/html 2012-03-12T15:53:12-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:pelletron&rev=1331581992&do=diff Pelletron Charging System: Theory of Operation, OUAL Installation Pelletron Accelerator Charging System [OUAL Installation Drawings] Photos of the OUAL Installation: text/html 2015-08-23T10:04:11-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:playground&rev=1440338651&do=diff PlayGround text/html 2020-07-12T13:43:34-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:power&rev=1594575814&do=diff POWER INTERRUPTION RECOVERY This process will guide the operator through the steps to recover from a brief ( less than 3 minute ) power interruption. The goal is to quickly restore critical support systems before they reach an inoperable state. This process should take less than 3 minutes. Be Aware: A power failure, even a brief one, will shut down the accelerator, sources, and gate valves. Computers and alarms in the control room, and some lights, will continue to function on emergency pow… text/html 2020-07-12T13:49:14-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:powerout&rev=1594576154&do=diff Power Failure A power outage lasting longer than 3 minutes will begin to create adverse conditions that can not be recovered from without the attention of Accelerator staff and will take a minimum of 4 hours before operations can resume. Be Aware: A power failure, even a brief one, will shut down the accelerator, sources, and gate valves. Computers and alarms in the control room, and some lights, will continue to function on emergency power from the generator on the roof if it starts properl… text/html 2023-01-27T07:11:28-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:pulsing&rev=1674821488&do=diff Accelerator Start-Up - Chopping and Bunching Starting and Tuning Pulsed and Bunched Beam * Start source as described in the Sputter Source or Duoplasmatron Source instructions. * With the low energy cup in, tune for maximum current using the proper tuning devices for the given source. text/html 2012-03-21T11:03:22-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:quadcontrols&rev=1332342202&do=diff Quadrupole Computer Controls * There are 4 quadrupole magnets <http://en.wikipedia.org/wiki/Quadrupole_magnet> located on our accelerator. * These magnets and their control power supplies have been upgraded to computer control from the original potentiometer control. * Each quadrupole magnet has 2 power supplies designated QuadA and QuadB with independent current adjustments. text/html 2022-06-08T14:12:02-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:quads&rev=1654711922&do=diff Quadrupole Lenses Quad 1: Located after the HE Faraday Cup. Quad 2: Located at the entrance to the Switcher Magnet. Quad 3: Located on beam lines 30L, 15L, 23R, 45R, and 65R. User must select beam line. Quad 4: Located on beam lines 23R and 45R. User must selct beam line. text/html 2012-02-15T11:46:38-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:see_the_repetition_rate_list&rev=1329324398&do=diff text/html 2013-01-15T13:40:24-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:shift&rev=1358275224&do=diff Shift Change of Operator * Outgoing Operator briefs incoming Operator on the experiment plan and rules as set forth by the principal investigator for the experiment. * Outgoing Operator hands over Direct Reading Dosimeter to incoming Operator. text/html 2017-04-17T11:45:35-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:shutdown&rev=1492443935&do=diff Accelerator Shutdown 1. Switch OVERVOLTAGE PROTECTION to DISABLE. 2. Switch the control mode to GVM. 3. Slowly turn the CONTROL GAIN to zero while watching the grid voltage. If the grid voltage rises above -5 volts, reduce the CHARGING VOLTAGE to keep the grid voltage less than -5 volts, then continue reducing the CONTROL GAIN to zero. text/html 2012-02-09T14:32:18-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:spark&rev=1328815938&do=diff IF YOU THINK THE ACCELERATOR HAS SPARKED, OR IS SPARKING: * Turn CONTROL GAIN to zero * Turn CHARGING VOLTAGE down to 0.1 * Get help text/html 2023-08-22T07:50:44-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:sputter&rev=1692705044&do=diff Sputter Source Instructions Cs Sputter Source Startup Procedure General Considerations * Review these illustrations: * Cs Sputter Source Labeled Cutaway Diagram * Cs Sputter Source Cutaway Diagram * Cs Sputter Source High Voltage Supplies * The proper target must be installed. (See Devon.) * The base pressure of 2 × 10-6 torr or less. text/html 2024-04-05T04:25:30-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:startup&rev=1712305530&do=diff Accelerator Start-up ==== ** Clear all Areas ** ==== 1. Verify Initial Machine Voltage setup: Initial conditions on TPS: * TPS POWER: ON * SLIT, GVM, CPO, PROBE: All on * OVERVOLTAGE PROTECTION: Disable * CONTROL MODE: GVM text/html 2012-03-12T17:01:47-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:steerers&rev=1331586107&do=diff Electrostatic Steerers Electrostatic steerers work on the principle of F = qE and cause the beam to deflect in one direction. Steerers are usually identified by the beam axis that they will cause a deflection on, e.g. X Steerer. A steerer consists of two parallel plates that are electrically isolated. The electric field is created by applying a voltage to the plates. An equal and opposite voltage is applied to each plate in the set to keep frige effects identical. If one plate was biased a… text/html 2012-03-13T17:31:28-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:stripping&rev=1331674288&do=diff Foil & Gas Stripping The user may select between carbon foil and nitrogen gas for charge exchange. Do not change foils with any beam other than alphas present in the stripper box. Run the foils to the zero position when using gas stripping. text/html 2012-03-12T15:24:14-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:structure&rev=1331580254&do=diff Internal Structure of Tank, Tubes, & Column text/html 2022-06-17T07:35:03-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:swinger&rev=1655465703&do=diff Swinger Operations 4 Jaw Slit Manipulation The 4 Jaw Slits (under the steps) are controlled using the DAQ (Win95 or Linux) Data Acquisition system. Entering the command “slits” will display the current slit positions in thousandths of an inch. text/html 2012-03-12T15:58:21-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:tps_control&rev=1331582301&do=diff Terminal Potential Stabilization (TPS) Function and Components [NEC Model TPS-5.5] The GVM: text/html 2012-02-07T11:37:57-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:trip&rev=1328632677&do=diff Over Voltage Trip Indication: The TPS OVERVOLTAGE PROTECTION “TRIPPED” red light will be on, the CHARGING CONTROLLER “DEFAULT” red light will be on, and the GVM will be at around 0.1 MV. To Recover: * Confirm that you were using the correct value on the TERMINAL VOLTAGE dial. text/html 2012-02-20T09:50:19-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:tritium_emergency&rev=1329749419&do=diff TRITIUM EMERGENCY PROCEDURES (The definitive copy of this procedure is in the Radiation Safety Handbook. This wiki page is only for quick reference.) * If a leak of tritium gas from the cell or the tritium gas handling system to the target room or vault at large should occur, or with any indication of a possible leak from the tritium sniffer or the tritium cell pressure gauge: text/html 2016-09-19T11:55:36-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:tritiumsop&rev=1474300536&do=diff * Tritium SOP text/html 2016-05-04T12:17:40-04:00 https://edwards2.phy.ohio.edu/~wiki/handbook/doku.php?id=playground:vesda&rev=1462378660&do=diff VESDA Fire and Oxygen Monitor * The VESDA computer is located on a small table behind the console by the Large Target Room entrance. * The VESDA system monitors smoke concentrations in the Vault, Tunnel, Small Target Room, Large Target Room, Control Room, and Dock. These systems are very sensitive to smallest concentrations of smoke, dust, steam, or any other particulate. Smoke concentration levels are connected to the main Fire Alarm System.