Existing ground-based inertial confinement fusion pellets implode at ~300km/s, and are accelerated over a distance of a few mm (and this is far from the lab speed record). However, in a plasma railgun, the armature and ejected projectile consists of plasma, or hot, ionised, gas-like particles, instead of a solid slug of material. They still retained their home in Westmoreland as a summer place for the next 20 years. one report published just over a decade after, Marauder was the US militarys first plasma railgun and it might have worked. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Before that could happen, MARAUDER vanished into Classified Status. Linear plasma railguns place extreme demands on their insulators, as they must be an electrically insulating, plasma-facing vacuum component which can withstand both thermal and acoustic shocks. eject plasma at extremely high speeds (some plasma railguns are designed to fire projectiles, but testing has shown that solid armatures are more effective due to lower electrical resistances found in metals [4]). | Refund Policy The electrode strikes a plasma arc to the target, creating a conductive path and emptying the capacitor into the target. Join 250,000+ students from 36+ countries & develop practical skills by building projects. I'm pretty sure the plasma was preheated and injected into the railgun. Plasma railguns are being evaluated for applications in magnetic confinement fusion for disruption mitigation and tokamak refueling. Ultimately, the limit is going to be keeping the bullet solid as you push on it. This answer (given technological development to improve power efficiency) meets all but two of your requirementsbut (potentially) bypasses their necessity. This may help a bit, but does impose some parasitic mass that will limit the muzzle velocity of the projectile (and makes calculation of the final velocity into some kind of horrid differential equation which I won't be solving for you). Is there such a thing as "right to be heard" by the authorities? Railguns, Coilguns, Helical Railguns, and Helical Coil - Reddit Spreading that same force over a larger distance I do not think adds anything to the equation acceleration wise. You must log in or register to reply here. Unfortunately, George died in 1933 and Ruth returned to Boston in 1938 to set up a medical practice to support herself and her daughter. MARAUDER took these Compact Toroids and fired them from a railgun. Mr. Parsons was a perfectionist in his plans he and his crew have done our lawn maintenance for the past 3 years and it looks awesome. Especially against space debris. Could a subterranean river or aquifer generate enough continuous momentum to power a waterwheel for the purpose of producing electricity? Have bigger trouble hitting small target. It is one of several United States Government efforts to develop plasma-based projectiles. Learn how and when to remove this template message, Conceptual Design Description of a CT Fueler for JT-60U, 35th European Physical Society Conference on Plasma Physics, Support to Survivability/Vulnerability Program, "Quasistatic compression of a compact torus", "Compact toroid dynamics in the Compact Toroid Injection Experiment", Compact Torus Accelerator Driven Inertial Confinement Fusion Power Plant, Innovative Confinement Concepts Workshops (ICC), "A Contoured Gap Coaxial Plasma Gun with Injected Plasma Armature", https://en.wikipedia.org/w/index.php?title=Plasma_railgun&oldid=1151052028, Compact Toroid Injection Experiment (CTIX), Pulsed High Density Fusion Experiment (PHD), This page was last edited on 21 April 2023, at 16:16. don't forget we're getting 5 pounds of TNT yield out of a MILIGRAMS of material. Plasma railguns appear in two principal topologies, linear and coaxial. The U.S. Navy and Air Force have both developed railgun prototypes. It was Motivated by RACE, though I don't know if that's enough to be an off shoot. It's a very slow particle beam in practice with ~8 millimeters of range in air if proton and ~10 if alpha particle. Depends on your skill/preference. Does it have to specifically contain plasma? ;). The intended use of this weapon is to have at least enough power to, And everybody likes the alluring neon lights which enliven nights and hide the stars. Working backwards, this gives us a maximum kinetic energy of ~35MJ and so a maximum muzzle velocity of 18km/s, regardless of anything else about our gun. How could I contain plasma for use in weapons? [duplicate] The railgun has less ammo, but a little higher damage and (correct me if I'm wrong) it's better to shoot out subsystems. What are your thoughts on Project MARAUDER? : IsaacArthur - Reddit Other alkaline-loving plants found here include maidenhair spleenwort, spring beauty, and Dutchmans breeches. Has the Melford Hall manuscript poem "Whoso terms love a fire" been attributed to any poetDonne, Roe, or other? Can you still use Commanders Strike if the only attack available to forego is an attack against an ally? A sabot round arrangement (or just crushing the plate into a pellet) will allow you to concentrate much of this energy in a penetrator. The plasma railgun is a linear accelerator and plasma energy weapon which like a projectile railgun uses two long parallel electrodes to accelerate a sliding short armature. Physics:Plasma railgun - HandWiki When Ruth died in 1973, Louise scattered her ashes on the preserve. This is obviously bad for your hopes and dreams. University of Alabama in Huntsville LOUIS "Using a massive electrical pulse rather than a chemical propellant, Take a left onto South Village Road, which you will follow for 3.7 miles before arriving in the village of Westmoreland. Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? You could work out the require currents for a given size of superconductor, limited by the material's critical current, but lets instead go for 200 Tesla. Round is a solid KE penetrator. Because of this, these devices have applications in magnetic confinement fusion (MCF), magneto-inertial fusion (MIF), high energy density physics research (HEDP), laboratory astrophysics, and as a plasma propulsion engine for spacecraft. Read how we use cookies and how you can control them by visiting our Privacy Policy. This is an instability in which the magnetic pressure front can out-run or "blow-by" the plasma armature due to the radial dependence of acceleration current density, drastically reducing device efficiency. Donations are tax-deductible as allowed by law. If it breaks out by accident, even if it destroys everything would you still call it a 'weapon' ? If you have any questions about this race, click the button below. It is hoped that the work at the University of Texas described in these papers . the railgun can launch projectiles much farther than the Your browser has JavaScript disabled. The approach of creating the plasma on contact. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. If your projectile is 20mm across and your barrel is 100m long, the amount of energy is the swept volume will be a reasonable 0.5GJ, for a muzzle velocity of 70km/s. We are talking about quite ridiculous energy levels here after all. | Contact Us, Copyright 2015-2018 Skyfi Education Labs Pvt. Because the projectile was light-weight and magnetically strong, the prototype was able to accelerate a Compact Toroid of plasma at $10^{10}g$ (or about $98,100,000,000 m/s^2$). The railgun is mounted on a KF-40 vacuum port and operated using a 90 kA, 11 kV LC pulse forming network. The PPRO1 Plasma Thermal Gun utilizes the electrothermal energy obtained from vaporizing a metallic material, creating a pressure wave of sufficient magnitude to cause a projectile to accelerate to ballistic velocities. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Railgun | Military Wiki | Fandom -, magnetic fields to shield the interior of a gun barrels, AN ANALYTIC MODEL FOR THE COMPRESSION OF PLASMA TOROIDS. Picture of a historical neon discharge tube by Pslawinski. The power requirement appears to be immense. New Progress on Plasma Weapons | Military.com Featured photo: Shiva Star at theAir Force Research Laboratoryat Kirtland Air Force Base. Now THERE is a coil gun. Where does the version of Hamapil that is different from the Gemara come from? MARAUDER, a U.S. government nuclear fusion research project Merauder, an American metalcore band Masked Marauder, a fictional Marvel Comics character Merrill's Marauders, United States commando unit in World War II This disambiguation page lists articles associated with the title Marauder. In this sci-fi world, plasma weapons are somewhat abundant in special forces, as their ammunition can be stored in smaller spaces, and in large quantities, but I ran into a problem regarding confinement: can be created quickly. Plasma is good against EVERYTHING - Hull AND shield - with big damage (with few exception), but since the travel time is slow, effective range is poor. In private, the U.S. military might be way ahead of Russia in the area of ultra-fast projectiles, but well never know because most of its early developments have been classified. Coaxial accelerators require insulators only at the breech, but the plasma armature in that case is subject to the "blow-by" instability. Contact: 1800-123-7177 Since the driver current through the armature is also moving through and normal to a self-generated magnetic field, the armature particles experience a Lorentz force, accelerating them down the length of the gun. [citation needed]. Better for close range brawling. Simply put, its not exactly mobile enough to use in ground combat. Marauder - Wikipedia The Railgun: The Ultimate Weapon the U.S. Military Can't Build? A transferred plasma cutter works by inducing a plasma in a carrier gas, which creates a very conductive path between the electrode and the "target" material, which creates a tremendous amount of heat. Privacy Statement Controlled jets from plasma rail guns can have peak densities in the 1013 to 1016 particles/m3 range, and velocities from 5 to 200 km/s, depending on device design configuration and operating parameters, and the upper limits may be higher. At least with the second approach, you can store your bullets normally. A railgun is a weapon that uses electromagnetic force to fire a projectile at high velocity, some at speeds of up to Mach 6. Plasma railguns are capable of producing controlled jets of given densities and velocities ranging from at least peak densities 1e13 to 1e16 particles/m^3 with velocities from 5 to 200 km/s dependent on device design configuration and operating parameters. Linear railguns consist of two flat plate electrodes separated by insulating spacers and accelerate sheet armatures. All takedown requests will be promptly acknowledged and investigated. I WANT PLASMA WEAPONS!!!!! | Page 2 | SpaceBattles No hunting on the southern portion of the preserve (Warwick parcel). From Route 9 take Route 12 north for 6.4 miles, bringing you to east Westmoreland. The importance of using plasma technology is that they produce muzzle velocities in 100s of km/shaving applications in magnetic confinement fusion (MCF), magneto-inertial fusion (MIF), High Energy Density Physics research (HEDP), laboratory astrophysics, and as a plasma propulsion engine for spacecraft. This set up is not feasible with current technology, as most railgun power sources can only operate barely long enough to fire the projectile. Plasma gets more electrically conductive as it heats up, and your bullet stays in the barrel so little time, the plasma won't conduct much heat to the bullet. What's wrong with accelerating a metal slug beyond its melting point? Learn more about Stack Overflow the company, and our products. Some handwaving of high-capacity, high-voltage, extremely compact and inexpensive supercapacitors will be needed. The Marauder uses the same principle in firing the weapon, but instead of the slug, Marauders projectile is superheated, donut-shaped ionized gas particles: plasma. AGM Landscaping. Landscaping Company - Porch I thought this was used primarily as an ASAT weapon? This is actually a design for a true plasma weapon that fires a bolt of magnetically contained plasma. You might be able to hold it magnetically in the gun, but the instant it leaves the barrel you've now got rapidly cooling nothing. Please enable JavaScript if possible. BATH, Maine The U.S. Navy has pulled the plug, for now, on a futuristic weapon that fires projectiles at up to seven times the speed of sound using electricity. Kinda important factors You might want to research fusion reactors. That's not bad at all. It's a big ship destroyer. Z-pinches also magnetically accelerate plasma up to similar velocities. [1], Magneto-inertial fusion seeks to implode a magnetized D-T fusion target using a spherically symmetric, collapsing, conducting liner. | Terms & Conditions @RossPresser You want a compact, high velocity projectile to deliver a kinetic energy strike on a small spot. this region. Railgun, plasma, beam, what's their difference? After armature formation, the plasmoid is then accelerated down the length of the railgun by a current pulse driven through one electrode, through the armature, and out the other electrode, creating a large magnetic field behind the armature. Railguns, sometimes called mass drivers, are kinetic energy weapons used extensively in the After Calamity Era. Developed by Phillips Laboratory. Railgun are less accurate, can fire from a longer range, do less damage against shield, have an average bigger dps. The power requirement appears to be immense. I'm not sure if this would be able to disable a tank with a single shot, but it is scalable assuming you have this kind of super-capacitive tech. Jet velocity and density are characterized by analyzing diagnostic data collected from a Rogowski coil, interferometer, and photodiode. For a better experience, please enable JavaScript in your browser before proceeding. If you believe that any material in VTechWorks should be removed, please see our policy and procedure for They do still have scaling issues: you have to turn off a coil the instant the projectile is in the middle, and it is hard to simply vanish the field of a very powerful magnet! The system shown on our data is a relatively low velocity device within the building capability of most hobbyists. Get kits shipped in 24 hours. A plasma railgun is a linear accelerator which, like a projectile railgun, uses two long parallel electrodes to accelerate a "sliding short" armature.However, in a plasma railgun, the armature and ejected projectile consists of plasma, or hot, ionized, gas-like particles, instead of a solid slug of material.Scientific plasma railguns are typically operated in vacuum and not at air pressure. The plasma railgun is a linear accelerator and plasma energy weapon which like a projectile railgun uses two long parallel electrodes to accelerate a sliding short armature. Fire rate will therefore be limited, and ultimate velocity will also be limited by your ability to a) quench your coils fast enough and b) cool them fast enough afterwards to fire the gun again. What does 'They're at four. The parcel was so important to the family that they permanently protected it by donating it to The Nature Conservancy in 1964. Agm is extremely professional we needed to expand our property to accommodate an RV and relieve a drainage problem next to our garage! That's a bit better, but remember: this is a maximum, regardless of anything else like barrel length, or field strength, or projectile weight. You can find instructions at https://www.whatismybrowser.com/guides/how-to-enable-cookies/auto. He describes two promising approaches which are based on demonstrated technology. Project MARAUDER was a coaxial railgun that shot plasma donuts that exploded (I think) on impact and also caused an emp discharge. | Mini Projects for Engineering Students You cannot get anything better unless you use magical materials, or magical ultra-efficient coilguns (and this example is already quite magical). Most don't need TeX formatting at all, if you know how to type. The Warwick Preserve was established when TNC received a 36-acre donation from Dr. Ruth Warwick and her daughter Louise Hunninen in 1964. @RossPresser but really what will happen is that if your gun pumps enough eneergy into the round to melt it, it'll almost certainly pump enough energy into it to at least partially boil it, and it'll go bang. The trails are rugged and moderately steep, ascending from 480 feet of elevation to 900 feet in just the first third of a mile. In what environment - vacuum, atmosphere, etc.? | Essentially its a still classified US military project aiming to develop a railgun capable of firing 0.5-2.0 mg toroids of plasma at up to 3% light speed. Its rugged terrain includes the rushing waters of Partridge Brook and a mixed forest of hemlock, sugar maple, red oak, and basswood. Obviously, your story, your hands to wave, but this stuff is important to remember if you want a hard-ish scifi setting. This page is not available in other languages. Stay up-to-date and build projects on latest technologies, Blog | Thanks for detailed post Connor. Naturally, in science fiction it would be very easy to explain that scientists discovered a more stable Toroidial configuration that lastswellhowever long you need it to last for the sake of the story. A 30mm projectile would let you fit your 100km/s gun into the original 100m length limit, but: You could use a fat, low-density sabot which drives a thin dense projectile, but the sabot represents parasitic weight that eats into the kinetic-energy budget of the narrow penetrator. It is worth noting that at that speed the projectile exceeds orbital velocity at Low Earth Orbit. Gentle acceleration up to 100km/s over 100m doesn't have to liquidize your bullet. Additionally, a complex triple joint seal may exist at the breech of the bore, which can often pose an extreme engineering challenge. Something similar was tried in original Star Wars SDI, huge power load, completely useless in atmosphere. a railgun? You'd have to get it to impact and either lightly penetrate or adhere to the surface to sustain the arc for any appreciable length of time, yes. rev2023.5.1.43405. All proceeds help support the Westmoreland PTA and their great programming for the students and teachers of Westmoreland! However, in a plasma railgun, the armature and ejected projectile consists of plasma, or hot, ionized, gas-like particles, instead of a solid slug of material. The official Subreddit for the Isaac Arthur YouTube channel. Youve already signed up with this email address. Plasma is a gaseous state of matter which is electrically conductive and interacts with electric and magnetic fields. Lets say that our coilgun is 99% efficient, and of the 1% of the energy that it wastes, half of it goes into the projectile. Why are players required to record the moves in World Championship Classical games? The preserve is located on Butterfield Hill in a quiet part of southwestern New Hampshire, not far from the Connecticut River. I really do not understand the purpose of the 100m barrel, unless you are projecting a VERY big bullet. A device known as a plasma railgun can be used to produce plasmas which meet these experimental demands. It only takes a minute to sign up. Resources for Engineering Students | How are engines numbered on Starship and Super Heavy? A YouTuber by the name of NSA_Listbot has created a railgun that shoots plasma rounds and they were strong enough to fully penetrate a cantaloupe. Railguns have long existed as experimental . Worldbuilding Stack Exchange is a question and answer site for writers/artists using science, geography and culture to construct imaginary worlds and settings. The railgun will be used for the study of plasma shocks in jet collisions. Scan this QR code to download the app now. It's not them. Why did US v. Assange skip the court of appeal? We're still messing with the specifics of the donut (how tall is it, how wide is it, how big is the hole, how much plasma do we shove in, how hot should the plasma be, etc), but the basic consensus is that Toroids are the ideal shape for a self-sustaining plasma bolt. What is this brick with a round back and a stud on the side used for? After graduating from Boston University in 1904, Dr. Warwick and her first husband, Dr. Coles, operated a TB sanitarium in West Keene. Like this page and invite your friends on Facebook. Please enter a valid email address (formatted as name@company.com). Glass, perhaps jacketed in something more durable like ceramic, could contain the plasma apparatus. We use cookies to offer you a better browsing experience. | Robotics for Kids Your question/message has been sent to the race director. Simple deform modifier is deforming my object. And it remains grounded in science. However, techniques including exploding foils, gas cell burst disk injection, neutral gas injection through a fast gas valve, and plasma capillary injection have been employed. They work a lot like a Smoke Ring does. There's no free lunch to be had here! After observing an extensive clear-cutting operation on Butterfield Hill near their home, Ruth urged George to acquire the 36-acre parcel to preserve the beautifully wooded section of the hill. rev2023.5.1.43405. After graduating from Boston University in 1904, Dr. Warwick and her first husband, Dr. Coles, operated a TB sanitarium in West Keene. 1,680 were here. The post Marauder was the US militarys first plasma railgun and it might have worked appeared first on We Are The Mighty. Why plasma armature railguns don't work (and what can be done about it We can now have a maximum muzzle energy of more like 1.2GJ, which for a 200g round gives us a muzzle velocity of nearly 110km/s. Accelerator electrode geometry and materials are also open areas of research. You can start for free today! Ruth married George Warwick in 1923 and they moved to Westmoreland. While most of New Hampshire tends to have acidic soils, the calcium-rich bedrock in Westmoreland has resulted in rich, alkaline soils that provide habitat for a diversity of plant life that is uncommon in the state. Its the same lab used to produce energy enough for the SDI initiative (also known as Star Wars missile defense).
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