Fishing Bivvy

Tritium Light

Tricked-out stick or factory iron?

What is your favorite go to EBR in your stable? My favorite at the moment is my

Colt LE6920 5.56 NATO
My Completed Upgrades: VLTOR rear sling plate, Samson STAR-C free floating front quad rail, Tango Down Surefire Vertical grip, ALPEC Grip Band, TROY dioptic folding rear battle sight with tritium, TRIJICON front tritium sight post, SUREFIRE M951 Tactical Light with ARMS Mount, MAGPUL Battery Assist Device Lever, Eotech EOLAD 1V with "doughnut of death" & 20MW visible red laser & Custom Scopecoat.
For Newby's - EBR is Evil Black Rifle or Assault Rifle.

Very nice selection. But as none of my guns have ever committed a heinous crime, they can't really be considered "evil"

The only rifle I own which is truly Evil, and hence, much more deadly than a rifle with a wooden stock, would be my Saiga 7.62x39. What an SKS can do to a human in two shots, it can apparently do in one, according to the Brady Bunch.

M14/M1a Tritium Front Sight M14/M1a Tritium Front Sight $69.99 Self-illuminating green Trijicon tritium dot allows rapid front sight acquisition during low light conditions. Blade is extra wide for increased contrast and visibility during bright light. Machined steel ears protect the tritium insert from damage. Parkerized finish helps prevent corrosion. Dovetailed base with steel Allen head screw holds tight under heavy recoil. Drop-in fit with original issue flash suppressor. Mfg: Ameriglo SPECS: Machined steel Parkerized finish. Base - .625'' (1.6cm) long .630'' (1.6cm) wide. Blade - .4'' (1cm) long .11'' (2.8mm) wide .25'' (6.3mm) high. .07'' (1.7mm) O.D. green tritium center. Includes setscrew. Replaces standard issue front sight.

Ak-47 Tritium Rear Night Sight Ak-47 Tritium Rear Sight $129.99 Self-illuminating green Trijicon tritium insert in the rear sight provides an easy-to-acquire 3-dot sight picture during low light operations. Rear sight features click adjustments for windage and uses the same elevation increments as a standard issue AKM tangent rear sight. Elevation settings are calibrated for 7.62 x 39mm trajectory up to 1000 meters. Fine line serrations on rear blade surface cuts light reflection to enhance sight pick up. Mfg: Ameriglo SPECS: Machined steel black matte finish. Rear sight - 2½" (6.3cm) long .75" (19mm) wide .11" (2.8mm) wide notch. Two .07" O.D. green tritium dots. Calibrated for 7.62 x 39. Rear Sight fits AK-47 style rifles in 7.62 x 39mm.

Truglo TG231K BriteSite Tritium Sight Kimber Green $86.64 The aiming points in this sight due to the light generating capabilities of Tritium will glow brightly under even the darkest shooting conditions for the ultimate in accuracy. This technology ensures the aiming point will always be visible. Perfect for all shooting conditions. The Tritium sight has a snagresistant design and fits standard holsters so there is no need to buy extra expensive accessories to use them. It fits Kimber. CNCmachined steel construction provides superior durability for combat or competition. High quality selfilluminating tritium tubes glow bright green so you can find your sights even in complete darkness. Surrounding white ring shows up well in daylight. Popular threedot system provides fast sight alignment in high stress situations. Traditional tritium night sights. Uses the brightest tritium available. CNCmachined steel construction. Fits standard holsters. Snagresistant design. Type: Tritium Handgun Night Sight. Material: Tritium. Finish: Green (Front) Green (Rear).

Tritium Shotgun Sight 5x40 Sight $35.99 CNC-machined steel sight uses eye-catching tritium to provide a fast sight picture in low light and an easily-noticeable white ring for regular light. White ring is recessed to protect it from being scratched and to ensure proper light reflection from any angle. Available in four different thread diameters to fit your shotgun. Mfg: Marble Arms SPECS: Steel blued matte finish. Approximately .32" (8.1mm) long 3/16" (4.8mm) wide .21" (5.4mm) high. 3/32" (2.4mm) shank length. See price line for thread diameter. 6-48 Oversize (OS) has a diameter of .146" (3.7mm).

Tritium Shotgun Sight 6x48 Sight $35.99 CNC-machined steel sight uses eye-catching tritium to provide a fast sight picture in low light and an easily-noticeable white ring for regular light. White ring is recessed to protect it from being scratched and to ensure proper light reflection from any angle. Available in four different thread diameters to fit your shotgun. Mfg: Marble Arms SPECS: Steel blued matte finish. Approximately .32" (8.1mm) long 3/16" (4.8mm) wide .21" (5.4mm) high. 3/32" (2.4mm) shank length. See price line for thread diameter. 6-48 Oversize (OS) has a diameter of .146" (3.7mm).

Rear Sights For Glock~ Tactical W/2-Dot Tritium $89.99 Used by numerous IDPA and USPSA National champions as well as law enforcement professionals these streamlined steel sights are built for fast target acquisition. A variety of front and rear sight configurations including fiber optics self-illuminating Tritium inserts and plain black let you mix and match for carry competition or tactical operations. Designed to fit factory dovetails with little to no fitting required. Rear Sights have a non-serrated face and are available in plain matte black for optimal contrast in bright light as well as in 1-dot or 2-dot Tritium configurations for low light and night use. Drift-adjustable for windage with a locking setscrew to hold the setting. Mfg: Warren Tactical Series SPECS: Hardened steel matte black finish. Tritium - Yellow. .040" dia. Tritium lamp. Sevigny - .150" wide notch. Tactical - .145" wide notch.

Rear Sights For Glock~ Sevigny Carry W/1-Dot Tritium $77.99 Used by numerous IDPA and USPSA National champions as well as law enforcement professionals these streamlined steel sights are built for fast target acquisition. A variety of front and rear sight configurations including fiber optics self-illuminating Tritium inserts and plain black let you mix and match for carry competition or tactical operations. Designed to fit factory dovetails with little to no fitting required. Rear Sights have a non-serrated face and are available in plain matte black for optimal contrast in bright light as well as in 1-dot or 2-dot Tritium configurations for low light and night use. Drift-adjustable for windage with a locking setscrew to hold the setting. Mfg: Warren Tactical Series SPECS: Hardened steel matte black finish. Tritium - Yellow. .040" dia. Tritium lamp. Sevigny - .150" wide notch. Tactical - .145" wide notch.

Tritium $60.54 High Quality Content by WIKIPEDIA articles While in the stratosphere, the tritium interacted with and oxidized to water molecules and was present in much of the rapidlyproduced rainfall, making tritium a prognostic tool for studying the evolution and structure of the hydrologic cycle as well as the ventilation and formation of water masses in the North Atlantic Ocean.In fact, bombtritium data were utilized from the Transient Tracers in the Ocean program in order to quantify the replenishment and overturning rates for deep water located in the North Atlantic.Most of the bomb tritiated water throughout the atmosphere can enter the ocean through the following processes: a) precipitation, b) vapor exchange, and c) river runoff these processes make HTO a great tracer for timescales up to a few decades.Using the data from these processes for the year 1981, the 1 TU isosurface lies between 500 and 1,000 meters deep in the subtropical regions and then extends to 1,5002,000 meters south of the Gulf Stream due to recirculation and ventilation in the upper portion of the Atlantic Ocean. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 74 Publication Date: 2010/07/18 Language: English Dimensions: 6.00 x 9.02 x 0.18 inches

Ak-47 Tritium Express Sight Set Ak-47 Tritium Express Set $108 High visibility sight combination easily replaces the factory sights on your AK-47 or variant for fast sight acquisition in high stress or low light conditions. Machined steel set includes an adjustable white stripe V-notch rear sight and a genuine Trijicon brand titrium lamp with large white ring for the front. Front sight completely replaces the factory windage drum and front sight post. Large single setscrew in the tangent rear sight provides fine adjustments for elevation; dual setscrews in the dovetailed rear V-notch block securely lock-in your windage settings. Includes installation tools thread locking agent and detailed instructions. Mfg: Xs Sight Systems SPECS: Steel black matte finish. Front Sight - .160'' (4.1mm) diameter white ring with .075'' (1.9mm) diameter tritium lamp. Rear Sight - .140'' (3.6mm) high vertical white stripe. Fits AK-47 and clones.

Semi-Auto Rifle Tritium Sight Sets For Hk & Springfield Std Dot Tritium Hk Usc/Ump G36/Sl8 $120 Steel sight sets feature tritium front sight for quick pickup in full light half light and low light. HK USC/UMP G36/SL8 models come in either Big Dot or Standard Dot tritium front sights and are paired with same-plane rear Ghost-Rings. HK 91 93 94 and MP5 sight sets have either Big Dot or Standard Dot front sights and windage and elevation adjustable rear sights. M1A/M14 sight set has a 24/7 tritium strip front sight and a .125 aperture rear sight for fast acquisition. Available for M1A Scout Rifles with 18" barrels and M1A/M14 rifles with 22" barrels. Mfg: Xs Sight Systems SPECS: Steel matte black. Tritium insert on front sights. M1A Scout model fits rifles with 18" barrels. M1A/M14 model fits rifles with 22" barrel. Gunsmith installation recommended.

Semi-Auto Rifle Tritium Sight Sets For Hk & Springfield Std Dot Tritium Hk 91 83 94 Mp5 $120 Steel sight sets feature tritium front sight for quick pickup in full light half light and low light. HK USC/UMP G36/SL8 models come in either Big Dot or Standard Dot tritium front sights and are paired with same-plane rear Ghost-Rings. HK 91 93 94 and MP5 sight sets have either Big Dot or Standard Dot front sights and windage and elevation adjustable rear sights. M1A/M14 sight set has a 24/7 tritium strip front sight and a .125 aperture rear sight for fast acquisition. Available for M1A Scout Rifles with 18" barrels and M1A/M14 rifles with 22" barrels. Mfg: Xs Sight Systems SPECS: Steel matte black. Tritium insert on front sights. M1A Scout model fits rifles with 18" barrels. M1A/M14 model fits rifles with 22" barrel. Gunsmith installation recommended.

Semi-Auto Rifle Tritium Sight Sets For Hk & Springfield 24/7 Tritium M1a/M14 Rifle $130 Steel sight sets feature tritium front sight for quick pickup in full light half light and low light. HK USC/UMP G36/SL8 models come in either Big Dot or Standard Dot tritium front sights and are paired with same-plane rear Ghost-Rings. HK 91 93 94 and MP5 sight sets have either Big Dot or Standard Dot front sights and windage and elevation adjustable rear sights. M1A/M14 sight set has a 24/7 tritium strip front sight and a .125 aperture rear sight for fast acquisition. Available for M1A Scout Rifles with 18" barrels and M1A/M14 rifles with 22" barrels. Mfg: Xs Sight Systems SPECS: Steel matte black. Tritium insert on front sights. M1A Scout model fits rifles with 18" barrels. M1A/M14 model fits rifles with 22" barrel. Gunsmith installation recommended.

Semi-Auto Rifle Tritium Sight Sets For Hk & Springfield Big Dot Tritium Hk91 93 94 Mp5 $120 Steel sight sets feature tritium front sight for quick pickup in full light half light and low light. HK USC/UMP G36/SL8 models come in either Big Dot or Standard Dot tritium front sights and are paired with same-plane rear Ghost-Rings. HK 91 93 94 and MP5 sight sets have either Big Dot or Standard Dot front sights and windage and elevation adjustable rear sights. M1A/M14 sight set has a 24/7 tritium strip front sight and a .125 aperture rear sight for fast acquisition. Available for M1A Scout Rifles with 18" barrels and M1A/M14 rifles with 22" barrels. Mfg: Xs Sight Systems SPECS: Steel matte black. Tritium insert on front sights. M1A Scout model fits rifles with 18" barrels. M1A/M14 model fits rifles with 22" barrel. Gunsmith installation recommended.

Troy SSIGFBSFHBT02 Folding Front Sight with Tritium Black $184.92 What is Tritium? Tritium is a form of hydrogen that emits a continuous light source where using batteries or electricity is not possible. Target aquisition is made possible in low or no light conditions. Utilizes a standard A2 front sight post with locking post and detent. Can be adjusted with a 556mm bullet tip or A2 front sight adjustment tool (not included). Crosslocking system compatible with all M1913 Picatinny rails. Sight deploys easily; no buttons or levers to fumble with. Returns to folded position by simply depressing button. Places aperture at same height as standard A2 rear. Type III hard coat with black oxide finish. Made in USA.

Semi-Auto Tritium Dovetail Front Sight Tritium Front Sight Govt. .190" Height $59.95 Dovetail mounted roll-pinned sights (except Kimber) resist shoot-off. Easily changed for different loads or conditions. Bright Tritium dot draws your eye in low light. TARGET RING - Includes white ring surrounding tritium dot. TRITIUM - Bright Tritium dot only for shooters who find the white ring distracting. Mfg: Novak SPECS: Includes Instructions. Steel blue. .125" (3.17mm) wide blade. Govt. Model Commander require 65° x .330" x .075" dovetail in slide. Colt Officers ACP require 65° x .330" x .060" dovetail. Kimber - Requires 65° x .330" x .070" dovetail .150

Semi-Auto Tritium Dovetail Front Sight Target Ring Tritium Front Sight Govt. .160" Height $54.95 Dovetail mounted roll-pinned sights (except Kimber) resist shoot-off. Easily changed for different loads or conditions. Bright Tritium dot draws your eye in low light. TARGET RING - Includes white ring surrounding tritium dot. TRITIUM - Bright Tritium dot only for shooters who find the white ring distracting. Mfg: Novak SPECS: Includes Instructions. Steel blue. .125" (3.17mm) wide blade. Govt. Model Commander require 65° x .330" x .075" dovetail in slide. Colt Officers ACP require 65° x .330" x .060" dovetail. Kimber - Requires 65° x .330" x .070" dovetail .150

Semi-Auto Tritium Dovetail Front Sight Target Ring Tritium Front Sight Off. Acp 160" Height $54.95 Dovetail mounted roll-pinned sights (except Kimber) resist shoot-off. Easily changed for different loads or conditions. Bright Tritium dot draws your eye in low light. TARGET RING - Includes white ring surrounding tritium dot. TRITIUM - Bright Tritium dot only for shooters who find the white ring distracting. Mfg: Novak SPECS: Includes Instructions. Steel blue. .125" (3.17mm) wide blade. Govt. Model Commander require 65° x .330" x .075" dovetail in slide. Colt Officers ACP require 65° x .330" x .060" dovetail. Kimber - Requires 65° x .330" x .070" dovetail .150

Semi-Auto Tritium Dovetail Front Sight Tritium Front Sight Govt. .175" Height $59.95 Dovetail mounted roll-pinned sights (except Kimber) resist shoot-off. Easily changed for different loads or conditions. Bright Tritium dot draws your eye in low light. TARGET RING - Includes white ring surrounding tritium dot. TRITIUM - Bright Tritium dot only for shooters who find the white ring distracting. Mfg: Novak SPECS: Includes Instructions. Steel blue. .125" (3.17mm) wide blade. Govt. Model Commander require 65° x .330" x .075" dovetail in slide. Colt Officers ACP require 65° x .330" x .060" dovetail. Kimber - Requires 65° x .330" x .070" dovetail .150

Semi-Auto Tritium Dovetail Front Sight Tritium Front Sight Govt. .165" Height $59.95 Dovetail mounted roll-pinned sights (except Kimber) resist shoot-off. Easily changed for different loads or conditions. Bright Tritium dot draws your eye in low light. TARGET RING - Includes white ring surrounding tritium dot. TRITIUM - Bright Tritium dot only for shooters who find the white ring distracting. Mfg: Novak SPECS: Includes Instructions. Steel blue. .125" (3.17mm) wide blade. Govt. Model Commander require 65° x .330" x .075" dovetail in slide. Colt Officers ACP require 65° x .330" x .060" dovetail. Kimber - Requires 65° x .330" x .070" dovetail .150

Semi-Auto Tritium Dovetail Front Sight Target Ring Tritium Front Sight Govt. .175" Height $54.95 Dovetail mounted roll-pinned sights (except Kimber) resist shoot-off. Easily changed for different loads or conditions. Bright Tritium dot draws your eye in low light. TARGET RING - Includes white ring surrounding tritium dot. TRITIUM - Bright Tritium dot only for shooters who find the white ring distracting. Mfg: Novak SPECS: Includes Instructions. Steel blue. .125" (3.17mm) wide blade. Govt. Model Commander require 65° x .330" x .075" dovetail in slide. Colt Officers ACP require 65° x .330" x .060" dovetail. Kimber - Requires 65° x .330" x .070" dovetail .150

Tritium light marker



Physics. Titrium isotope question.?

The glow-in-the-dark dials on some watches and some keychain lights shine with energy provided by the decay of radioactive tritium, 3-1H. Tritium is a radioactive isotope of hydrogen with a half-life of 12 years. Each decay emits an electron with an energy of 19 keV. A typical new watch has tritium with a total activity of 16 MBq.

a)What is the speed of the emitted electron? (This speed is high enough that you’ll need to do a relativistic calculation.)

b)What is the power, in watts, provided by the radioactive decay process?

c)What will be the activity of the tritium in a watch after 6 years, assuming none escapes?

For all 3, Express your answer to two significant figures and include the appropriate units.

Notes: 1 Becquerel is 1 decay per second.
Energy equivalent to the mass of the electron is:
mc^2 = 511 keV
Some units identities:
Coul*V = J
J/s = W

a) [Actually, since they ask you for two significant figures, it turns out that you'll get the same answer for β = v/c with or without taking account of relativity. But for v itself, there will be a slight difference.]

Kinetic energy =
T = (γ - 1)mc^2
= (1/√[1-β^2] - 1)mc^2

β = v/c = √(1 - 1/[1 + (T/mc^2)]^2)
= 0.2654...

v = βc = 8.0*10^7 m/s [without relativity, it would have been 8.2*10^7 m/s]

b) P = RT, where R = rate of decay (no. per unit time)
= (1.6*10^7/s)*1.9*10^4 eV

Need to convert eV to J.
e = 1.602*10^-19 Coul
eV = 1.602*10^-19 Coul V = 1.602*10^-19 J

P = (1.6*10^7/s)*1.9*10^4 *1.602*10^-19 J
= 4.9*10^-8 J/s = 4.9*10^-8 W

c) Radioactive decay is exponential with time, so
R(t) = R(0)*2^(-t/t[1/2]), where t[1/2] = half-life
With t[1/2] = 12 y; t = 6 y,
R(6 y) = 16 MBq *2^(-6/12)
= 16 MBq *2^(-1/2)
= 16 MBq /√2
= 11 MBq